✓ Verified Expert
Rachel Hayes, CCIM
Commercial Real Estate Analyst & Property Valuation Lead
🎓 Certified Commercial Investment Member (CCIM), B.S. in Real Estate Development
🏛️ Hayes Property Analytics Group
⏳ 15+ years in multifamily syndication, cap rate compression, and property cash flow analysis
📊
199
Calculators Authored & Validated
100% active, peer-reviewed computational engines
🏛️
Real Estate & Property
Editorial Domain Desk
Quantitative Editorial Desk Lead
🛡️
Level IV E-E-A-T
Verification Rigor Standard
IEEE 754 precision & boundary validated
📜
Regulatory Compliant
Statutory & Academic Adherence
Open-formula transparent derivations
👤 Professional Biography & Academic Background
Rachel Hayes oversees all property, rental yield, and commercial real estate calculation engines. With extensive experience in underwriting multifamily acquisitions, 1031 tax-deferred exchanges, and net operating income (NOI) forecasting, Rachel ensures that every property calculator factors in vacancy reserves, capital expenditure depreciation, and realistic leverage ratios.
🎯 Core Focus Areas & Computational Disciplines
Cap Rate & NOI Analysis BRRRR Strategy Modeling Rental Yield Optimization 1031 Exchange Economics
🔬 Formula Verification & Review Standards
Every mathematical model authored or overseen by Rachel Hayes, CCIM undergoes systematic review adhering to The Online Calculator 24's quantitative verification protocol:
- Formula Integrity: Verified against primary academic citations, statutory regulations (IRS, CFPB, WHO, ASTM, or ISO standards), and standard textbook derivations.
- Boundary & Precision Guards: Algorithmic defenses against IEEE 754 floating-point inaccuracies, zero-division, overflow exceptions, and invalid parameter regimes.
- Step-by-Step Transparency: Formula steps and variables are exposed publicly so practitioners, students, and engineers can independently audit results.
📫 Verified Contact & Academic Profiles
🧮 Authored & Reviewed Calculators
199 Total CalculatorsReal Estate & Property
Home Buying 50 tools
- Home Affordability & DTI Underwriting Calculator Calculate your maximum affordable home purchase price based on Fannie Mae / Freddie Mac qualifying underwriting standards, front-end (28%) and back-end (36%/43%) DTI caps, property taxes, insurance, and PMI.
- Maximum Purchase Price Calculator The mirror of affordability: fix the payment that keeps you sleeping, strip taxes/insurance, and invert the amortization. Free, instant, with the worked calculation and interpretation ranges.
- Debt-to-Income for Home Calculator Both ratios lenders run: housing-only (front-end) and housing plus every minimum debt payment (back-end). Free, instant, with the worked calculation and interpretation ranges.
- Down Payment Required Calculator Separates the headline “5% down” from the real number: down plus 2–5% closing, plus whatever insurance the low down buys you monthly. Free, instant, with the worked calculation and interpretation ranges.
- Down Payment Savings Timeline Calculator Compounds the down-payment pot monthly until it crosses the target — the timeline that house-hunting actually schedules against. Free, instant, with the worked calculation and interpretation ranges.
- Itemized Buyer Closing Cost & Settlement Calculator Itemize all buyer closing costs with precision, including lender origination fees, appraisal, lender & owner title insurance, transfer taxes, recording fees, and prepaid escrow reserves.
- Title Insurance Cost Calculator Title insurance defends against liens, forgeries and survey errors discovered after closing — a single premium that lasts while you own. Free, instant, with the worked calculation and interpretation ranges.
- Homeowner's Insurance Calculator Prices HO-3 dwelling premiums from replacement cost and rates, with the deductible as the shared-risk dial. Free, instant, with the worked calculation and interpretation ranges.
- Property Tax Estimate Calculator Property tax is the payment that never pays off — mills times assessed value, tempered by exemptions and assessment caps. Free, instant, with the worked calculation and interpretation ranges.
- HOA Fee Impact Calculator HOA dues are an unfinanceable, ever-increasing subscription on top of the mortgage — this totals the ownership-era burden. Free, instant, with the worked calculation and interpretation ranges.
- Private Mortgage Insurance Calculator PMI protects the lender while your equity is thin; monthly premium keyed to loan size and LTV band. Free, instant, with the worked calculation and interpretation ranges.
- Mortgage Insurance Premium Calculator Two parts: a 2% upfront rolled into the loan, plus monthly MIP whose length depends on down payment and term. Free, instant, with the worked calculation and interpretation ranges.
- VA Funding Fee Calculator VA loans skip PMI but charge a one-time funding fee — a percentage of loan that scales with down and use history. Free, instant, with the worked calculation and interpretation ranges.
- USDA Guarantee Fee Calculator USDA 502 loans serve moderate-income rural buyers with 0 down: a financed guarantee fee plus small annual fee. Free, instant, with the worked calculation and interpretation ranges.
- Mortgage Discount Points Breakeven Calculator Calculate whether paying upfront discount points to lower your mortgage interest rate saves money over your expected home tenure, determining the exact break-even month.
- Origination Fee Impact Calculator Origination fee versus a higher “no-fee” rate is the same buy-down choice wearing a closing-disclosure costume. Free, instant, with the worked calculation and interpretation ranges.
- Appraisal Cost Calculator Prices the appraisal engagement: appraiser fee, AMC markup, rush charges, and the dreaded second-order rework. Free, instant, with the worked calculation and interpretation ranges.
- Home Inspection Cost Calculator Inspection pricing by size, age and add-ons — sewer scopes, radon, drone roof and thermal are separate skills, separate fees. Free, instant, with the worked calculation and interpretation ranges.
- Survey Cost Calculator Land surveying fees by lot, terrain and deliverable: boundary, ALTA (lender standard), or topographic. Free, instant, with the worked calculation and interpretation ranges.
- Attorney Fee Calculator (Real Estate) Real-estate attorney costs: flat closing representation plus hourly work for title objections, HOA docs, and negotiation. Free, instant, with the worked calculation and interpretation ranges.
- Escrow Fee Calculator Escrow/title companies charge per-transaction plus percentage; doc prep, wire, and courier fees ride on top. Free, instant, with the worked calculation and interpretation ranges.
- Recording Fee Calculator County recorders charge per document and page; states add price-based transfer stamps that actually scale with the deal. Free, instant, with the worked calculation and interpretation ranges.
- Transfer Tax Calculator Real-estate transfer taxes are levied on the deed itself — the one closing cost purely set by geography. Free, instant, with the worked calculation and interpretation ranges.
- Mansion Tax Calculator Mansion taxes (NYC-style) hit the full consideration at a flat rate once a price threshold is crossed — a cliff, not a bracket. Free, instant, with the worked calculation and interpretation ranges.
- First-Time Buyer Credit Calculator Local first-time programs phase out across income bands (80–100% AMI typical), interacting with the loan itself. Free, instant, with the worked calculation and interpretation ranges.
- State Housing Grant Calculator State and county housing trust funds scale grants by AMI, household size and matched-savings compliance. Free, instant, with the worked calculation and interpretation ranges.
- Down Payment Assistance Calculator The down payment assistance payment, total interest and true cost of borrowing for any principal, APR and term — the same amortisation maths every lender’s disclosure uses. Free, instant, with the worked calculation and interpretation ranges.
- Gifted Down Payment Calculator The gifted down payment payment, total interest and true cost of borrowing for any principal, APR and term — the same amortisation maths every lender’s disclosure uses. Free, instant, with the worked calculation and interpretation ranges.
- Seller Concession Value Calculator A transparent linear conversion for seller concession value: the factor is visible, the arithmetic is shown, and the inverse direction comes free. Free, instant, with the worked calculation and interpretation ranges.
- Seller Net Proceeds Calculator The size and shape of the move between two figures — total percent, absolute delta and the annualised rate — for seller net proceeds. Free, instant, with the worked calculation and interpretation ranges.
- Buyer vs Seller Closing Costs Calculator The full price tag for buyer vs seller closing costs: variable spend, one-off costs and an explicit contingency band, with the all-in per-unit figure quotes obscure. Free, instant, with the worked calculation and interpretation ranges.
- Price Per Square Foot Calculator The true per-unit price of price per square foot, with a like-for-like comparison against a second option — the number invoice totals hide. Free, instant, with the worked calculation and interpretation ranges.
- Comparable Sales Analysis Calculator The bottom line for comparable sales analysis and the margin it represents — the two numbers every owner checks before anything else. Free, instant, with the worked calculation and interpretation ranges.
- Offer Strategy Calculator The size and shape of the move between two figures — total percent, absolute delta and the annualised rate — for offer strategy. Free, instant, with the worked calculation and interpretation ranges.
- Escalation Clause Calculator The size and shape of the move between two figures — total percent, absolute delta and the annualised rate — for escalation clause. Free, instant, with the worked calculation and interpretation ranges.
- Earnest Money Calculator The size and shape of the move between two figures — total percent, absolute delta and the annualised rate — for earnest money. Free, instant, with the worked calculation and interpretation ranges.
- Option Period Cost Calculator The full price tag for option period cost: variable spend, one-off costs and an explicit contingency band, with the all-in per-unit figure quotes obscure. Free, instant, with the worked calculation and interpretation ranges.
- Contingency Impact Calculator The true per-unit price of contingency impact, with a like-for-like comparison against a second option — the number invoice totals hide. Free, instant, with the worked calculation and interpretation ranges.
- Home Warranty Cost Calculator The full price tag for home warranty cost: variable spend, one-off costs and an explicit contingency band, with the all-in per-unit figure quotes obscure. Free, instant, with the worked calculation and interpretation ranges.
- Move-In Costs Calculator The full price tag for move-in costs: variable spend, one-off costs and an explicit contingency band, with the all-in per-unit figure quotes obscure. Free, instant, with the worked calculation and interpretation ranges.
- First Month Mortgage Calculator The first month mortgage payment, total interest and true cost of borrowing for any principal, APR and term — the same amortisation maths every lender’s disclosure uses. Free, instant, with the worked calculation and interpretation ranges.
- Prepaid Interest Calculator The blend for prepaid interest: weighted mean with the weights shown explicitly, so nobody has to guess whether line one counted. Free, instant, with the worked calculation and interpretation ranges.
- Escrow Reserve Calculator A transparent linear conversion for escrow reserve: the factor is visible, the arithmetic is shown, and the inverse direction comes free. Free, instant, with the worked calculation and interpretation ranges.
- Cash to Close Calculator A transparent linear conversion for cash to close: the factor is visible, the arithmetic is shown, and the inverse direction comes free. Free, instant, with the worked calculation and interpretation ranges.
- Rent vs Buy Timeline Calculator The rent vs buy timeline payment, total interest and true cost of borrowing for any principal, APR and term — the same amortisation maths every lender’s disclosure uses. Free, instant, with the worked calculation and interpretation ranges.
- Break-Even Rent vs Buy Calculator Find how many years you must stay in a home before buying beats renting — the honest version, including opportunity cost and appreciation.
- Opportunity Cost of Down Payment Calculator The full price tag for opportunity cost of down payment: variable spend, one-off costs and an explicit contingency band, with the all-in per-unit figure quotes obscure. Free, instant, with the worked calculation and interpretation ranges.
- Phantom Income Tax Calculator The share one quantity represents of another — the core reading behind phantom income tax — with a second value folded in for direct comparison. Free, instant, with the worked calculation and interpretation ranges.
- Total Cost of Homeownership Calculator The full price tag for total cost of homeownership: variable spend, one-off costs and an explicit contingency band, with the all-in per-unit figure quotes obscure. Free, instant, with the worked calculation and interpretation ranges.
- 15 vs 30 Year Mortgage Calculator The 15 vs 30 year mortgage payment, total interest and true cost of borrowing for any principal, APR and term — the same amortisation maths every lender’s disclosure uses. Free, instant, with the worked calculation and interpretation ranges.
Real Estate Investment 49 tools
- Cap Rate & Rental Cash Flow Calculator Comprehensive real estate investment analysis: capitalization rate, cash-on-cash return, DSCR, and 10-year wealth accumulation schedule.
- NOI Calculator Calculator A transparent linear conversion for noi calculator: the factor is visible, the arithmetic is shown, and the inverse direction comes free. Free, instant, with the worked calculation and interpretation ranges.
- Cash-on-Cash Return & Real Estate Cash Flow Calculator Calculate the true Cash-on-Cash (CoC) yield on your rental property investment, comparing net annual pre-tax cash flow against all out-of-pocket capital deployed (down payment, closing costs, and rehab).
- Gross Rent Multiplier Calculator Income relative to price — the gross rent multiplier number investors quote first — plus the expense-adjusted net figure that actually matters. Free, instant, with the worked calculation and interpretation ranges.
- Price-to-Rent Ratio Calculator The full price tag for price-to-rent ratio: variable spend, one-off costs and an explicit contingency band, with the all-in per-unit figure quotes obscure. Free, instant, with the worked calculation and interpretation ranges.
- Gross Yield Calculator Income relative to price — the gross yield number investors quote first — plus the expense-adjusted net figure that actually matters. Free, instant, with the worked calculation and interpretation ranges.
- Net Yield Calculator Income relative to price — the net yield number investors quote first — plus the expense-adjusted net figure that actually matters. Free, instant, with the worked calculation and interpretation ranges.
- Equity Multiple Calculator The share one quantity represents of another — the core reading behind equity multiple — with a second value folded in for direct comparison. Free, instant, with the worked calculation and interpretation ranges.
- Investment Return (IRR) Calculator Exactly what investment return (irr) earned: total return, the annualised CAGR that makes it comparable, and the split between price gain and income. Free, instant, with the worked calculation and interpretation ranges.
- Cash Flow Analysis Calculator Whether cash flow analysis leaks or pools: monthly net movement, the runway it implies against cash on hand, and the annual projection. Free, instant, with the worked calculation and interpretation ranges.
- Operating Expense Ratio Calculator The full price tag for operating expense ratio: variable spend, one-off costs and an explicit contingency band, with the all-in per-unit figure quotes obscure. Free, instant, with the worked calculation and interpretation ranges.
- Break-Even Occupancy Calculator How many units (and how many months) before the fixed spend is repaid — the break-even occupancy number every pitch deck and pricing decision leans on. Free, instant, with the worked calculation and interpretation ranges.
- Debt Service Coverage Ratio (DSCR) Calculator Calculate the Debt Service Coverage Ratio (DSCR) for commercial real estate and multifamily investments, testing commercial lender underwriting hurdles, default buffers, and maximum borrowing capacity.
- Loan-to-Value Calculator Works out your loan-to-value ratio, the extra cash needed to reach the 80% no-PMI threshold, what mortgage insurance will cost while you are above it, and how LTV and equity move over a year of payments and price change.
- Loan-to-Cost Calculator The loan-to-cost payment, total interest and true cost of borrowing for any principal, APR and term — the same amortisation maths every lender’s disclosure uses. Free, instant, with the worked calculation and interpretation ranges.
- After-Repair Value Calculator The blend for after-repair value: weighted mean with the weights shown explicitly, so nobody has to guess whether line one counted. Free, instant, with the worked calculation and interpretation ranges.
- Fix-and-Flip 70% Rule & Maximum Allowable Offer (MAO) Calculator Apply the real estate industry standard "70% Rule" for house flipping and wholesaling, calculating the Maximum Allowable Offer (MAO) to protect investor margins against rehab overruns and holding costs.
- Maximum Allowable Offer Calculator A transparent linear conversion for maximum allowable offer: the factor is visible, the arithmetic is shown, and the inverse direction comes free. Free, instant, with the worked calculation and interpretation ranges.
- Rehab Cost Estimate Calculator The full price tag for rehab cost estimate: variable spend, one-off costs and an explicit contingency band, with the all-in per-unit figure quotes obscure. Free, instant, with the worked calculation and interpretation ranges.
- Holding Cost Calculator The full price tag for holding cost: variable spend, one-off costs and an explicit contingency band, with the all-in per-unit figure quotes obscure. Free, instant, with the worked calculation and interpretation ranges.
- Flip Profit Calculator The bottom line for flip profit and the margin it represents — the two numbers every owner checks before anything else. Free, instant, with the worked calculation and interpretation ranges.
- Assignment Fee Calculator The full price tag for assignment fee: variable spend, one-off costs and an explicit contingency band, with the all-in per-unit figure quotes obscure. Free, instant, with the worked calculation and interpretation ranges.
- Wholesale Spread Calculator The share one quantity represents of another — the core reading behind wholesale spread — with a second value folded in for direct comparison. Free, instant, with the worked calculation and interpretation ranges.
- Bird Dog Fee Calculator The full price tag for bird dog fee: variable spend, one-off costs and an explicit contingency band, with the all-in per-unit figure quotes obscure. Free, instant, with the worked calculation and interpretation ranges.
- Referral Fee Calculator The full price tag for referral fee: variable spend, one-off costs and an explicit contingency band, with the all-in per-unit figure quotes obscure. Free, instant, with the worked calculation and interpretation ranges.
- Property Management Fee Impact Calculator Sizes the management fee against real collections and translates it into per-door and self-manage-breakeven terms. Free, instant, with the worked calculation and interpretation ranges.
- Vacancy Rate Impact Calculator The size and shape of the move between two figures — total percent, absolute delta and the annualised rate — for vacancy rate impact. Free, instant, with the worked calculation and interpretation ranges.
- Credit Loss Impact Calculator The size and shape of the move between two figures — total percent, absolute delta and the annualised rate — for credit loss impact. Free, instant, with the worked calculation and interpretation ranges.
- Maintenance Reserve Calculator The size and shape of the move between two figures — total percent, absolute delta and the annualised rate — for maintenance reserve. Free, instant, with the worked calculation and interpretation ranges.
- CapEx Reserve Calculator Attainment of capex reserve against a target, with the absolute gap and the weighted contribution for scorecard roll-ups. Free, instant, with the worked calculation and interpretation ranges.
- Property Depreciation Calculator A transparent linear conversion for property depreciation: the factor is visible, the arithmetic is shown, and the inverse direction comes free. Free, instant, with the worked calculation and interpretation ranges.
- Cost Segregation Benefit Calculator The full price tag for cost segregation benefit: variable spend, one-off costs and an explicit contingency band, with the all-in per-unit figure quotes obscure. Free, instant, with the worked calculation and interpretation ranges.
- Bonus Depreciation Calculator The share one quantity represents of another — the core reading behind bonus depreciation — with a second value folded in for direct comparison. Free, instant, with the worked calculation and interpretation ranges.
- 179D Deduction Calculator The share one quantity represents of another — the core reading behind 179d deduction — with a second value folded in for direct comparison. Free, instant, with the worked calculation and interpretation ranges.
- Passive Loss Limitation Calculator A transparent linear conversion for passive loss limitation: the factor is visible, the arithmetic is shown, and the inverse direction comes free. Free, instant, with the worked calculation and interpretation ranges.
- Real Estate Professional Status Calculator The size and shape of the move between two figures — total percent, absolute delta and the annualised rate — for real estate professional status. Free, instant, with the worked calculation and interpretation ranges.
- Short-Term Rental (STR) Income Calculator The bottom line for short-term rental (str) income and the margin it represents — the two numbers every owner checks before anything else. Free, instant, with the worked calculation and interpretation ranges.
- Occupancy Rate (STR) Calculator The share one quantity represents of another — the core reading behind occupancy rate (str) — with a second value folded in for direct comparison. Free, instant, with the worked calculation and interpretation ranges.
- ADR (Average Daily Rate) Calculator The exact calendar arithmetic behind adr (average daily rate) — leap-year-safe day counts converted into every unit people actually need. Free, instant, with the worked calculation and interpretation ranges.
- RevPAR Calculator The bottom line for revpar and the margin it represents — the two numbers every owner checks before anything else. Free, instant, with the worked calculation and interpretation ranges.
- STR vs LTR Comparison Calculator A transparent linear conversion for str vs ltr comparison: the factor is visible, the arithmetic is shown, and the inverse direction comes free. Free, instant, with the worked calculation and interpretation ranges.
- Airbnb Net Income Calculator The bottom line for airbnb net income and the margin it represents — the two numbers every owner checks before anything else. Free, instant, with the worked calculation and interpretation ranges.
- VRBO Net Income Calculator The bottom line for vrbo net income and the margin it represents — the two numbers every owner checks before anything else. Free, instant, with the worked calculation and interpretation ranges.
- Property Tax Appeal Calculator The share one quantity represents of another — the core reading behind property tax appeal — with a second value folded in for direct comparison. Free, instant, with the worked calculation and interpretation ranges.
- Assessment Appeal Calculator The size and shape of the move between two figures — total percent, absolute delta and the annualised rate — for assessment appeal. Free, instant, with the worked calculation and interpretation ranges.
- Mill Rate Calculator The blend for mill rate: weighted mean with the weights shown explicitly, so nobody has to guess whether line one counted. Free, instant, with the worked calculation and interpretation ranges.
- Homestead Exemption Calculator The dilution identity C₁V₁=C₂V₂ applied to homestead exemption: how much concentrate, how much carrier, and a back-check that the target truly came out. Free, instant, with the worked calculation and interpretation ranges.
- Senior Exemption Calculator The bottom line for senior exemption and the margin it represents — the two numbers every owner checks before anything else. Free, instant, with the worked calculation and interpretation ranges.
- Disabled Veteran Exemption Calculator The size and shape of the move between two figures — total percent, absolute delta and the annualised rate — for disabled veteran exemption. Free, instant, with the worked calculation and interpretation ranges.
Commercial Real Estate 50 tools
- Commercial Office Lease & Add-on Factor Calculator Calculate the true monthly and multi-year cost of leasing commercial office space, comparing Triple Net (NNN) vs. Full Service Gross (FSG) structures, building core add-on factors, and annual escalation compounding.
- Retail Space Cost Calculator Retail rent = base plus a share of sales over a breakpoint; the landlord participates in your upside. Free, instant, with the worked calculation and interpretation ranges.
- Industrial Space Cost Calculator Industrial rent priced by sf with value driven by clear height (cube) and dock density — the two numbers every 3PL bids on. Free, instant, with the worked calculation and interpretation ranges.
- Warehouse Cost Calculator Warehouse total operating cost normalized to pallet positions — the metric that compares buildings, racks and wages on one axis. Free, instant, with the worked calculation and interpretation ranges.
- Self-Storage Income Calculator Storage income: rent/sf × occupancy − the famously thin 28–38% opex, producing cap-rate-ready NOI. Free, instant, with the worked calculation and interpretation ranges.
- Mobile Home Park Income Calculator MH park income is land rent plus utilities/ancillary; the homes belong to residents and the opex is surprisingly thin. Free, instant, with the worked calculation and interpretation ranges.
- RV Park Income Calculator RV park revenue = nightly hospitality plus annual-site land rent; the ratio sets your weather and recession exposure. Free, instant, with the worked calculation and interpretation ranges.
- Marina Income Calculator Marina revenue is priced per foot per month: wet slips, dry stacks, transient dockage, and the service fuel-loop around them. Free, instant, with the worked calculation and interpretation ranges.
- Parking Lot Income Calculator Uncontrolled and controlled lot income: monthly leases floor the revenue; daily turnover and dynamic pricing push the margin. Free, instant, with the worked calculation and interpretation ranges.
- Billboard Income Calculator Outdoor advertising: long leases, tiny footprints, ground rents as percentage — NOI per square foot is the highest in CRE. Free, instant, with the worked calculation and interpretation ranges.
- Cell Tower Income Calculator Tower ground leases: three carriers at 75–110k with 3% escalators and auto-renewals — the closest thing CRE has to a bond. Free, instant, with the worked calculation and interpretation ranges.
- Data Center Income Calculator Colocation revenue per kW-month, with PUE-scaled energy as the dominant opex line; hyperscale and retail differ wildly. Free, instant, with the worked calculation and interpretation ranges.
- Medical Office Income Calculator Medical office (MOBC): outpatient health systems on 10-year leases with heavy fit-out; recession-insensitive demand. Free, instant, with the worked calculation and interpretation ranges.
- Senior Housing Income Calculator Senior living income: rent plus care-level fees against a staffing-dominated expense stack, measured on occupancy recovery. Free, instant, with the worked calculation and interpretation ranges.
- Student Housing Income Calculator Purpose-built student housing underwrites per-bed rent with academic-year leases plus summer programming. Free, instant, with the worked calculation and interpretation ranges.
- Affordable Housing Credit (LIHTC) Calculator LIHTC: dollar-for-dollar tax credits over 10 years sold to investors as equity — the workhorse of US affordable rental supply. Free, instant, with the worked calculation and interpretation ranges.
- Historic Tax Credit Calculator Historic rehabilitation credits: 20% federal on QHB for certified pre-1936 structures, often layered with 10–30% state credits. Free, instant, with the worked calculation and interpretation ranges.
- EB-5 Visa Investment Calculator EB-5 immigrant investor capital: the 2022 Reform set 800k in TEAs/rural, 1.05M otherwise, plus set-aside visa categories. Free, instant, with the worked calculation and interpretation ranges.
- Qualified Opportunity Zone Calculator QOZs: defer the old gain, step up basis at 5 years (legacy), and permanently exclude the new investment’s appreciation at 10. Free, instant, with the worked calculation and interpretation ranges.
- TIF Financing Calculator Tax increment financing: freeze the base assessment, route the new increment to project debt for up to ~25 years. Free, instant, with the worked calculation and interpretation ranges.
- New Markets Tax Credit Calculator NMTC: 39% credit over 7 years converts CBA allocations into below-market LIC loans via equity/debt structures. Free, instant, with the worked calculation and interpretation ranges.
- PACE Financing Calculator Property Assessed Clean Energy: long-term, on-tax assessment financing tied to the property for energy/water upgrades. Free, instant, with the worked calculation and interpretation ranges.
- Commercial Bridge Loan Calculator Bridge debt: higher rate, short term, points upfront — priced for value-creation certainty, not permanence. Free, instant, with the worked calculation and interpretation ranges.
- Commercial Hard Money Calculator Hard-money commercial lending: 10–18% effective, short duration, priced against the opportunity the closing speed protects. Free, instant, with the worked calculation and interpretation ranges.
- CMBS Loan Calculator CMBS: cheap fixed rate for ten years with real prepayment penalties (YM/defeasance) — you buy certainty and pay for exit. Free, instant, with the worked calculation and interpretation ranges.
- Agency Multifamily Loan Calculator The agency multifamily loan payment, total interest and true cost of borrowing for any principal, APR and term — the same amortisation maths every lender’s disclosure uses. Free, instant, with the worked calculation and interpretation ranges.
- Life Insurance Company Loan Calculator The life insurance company loan payment, total interest and true cost of borrowing for any principal, APR and term — the same amortisation maths every lender’s disclosure uses. Free, instant, with the worked calculation and interpretation ranges.
- SBA 504 Loan Calculator The sba 504 loan payment, total interest and true cost of borrowing for any principal, APR and term — the same amortisation maths every lender’s disclosure uses. Free, instant, with the worked calculation and interpretation ranges.
- SBA 7(a) Loan Calculator The sba 7(a) loan payment, total interest and true cost of borrowing for any principal, APR and term — the same amortisation maths every lender’s disclosure uses. Free, instant, with the worked calculation and interpretation ranges.
- Commercial Construction Loan Calculator The commercial construction loan payment, total interest and true cost of borrowing for any principal, APR and term — the same amortisation maths every lender’s disclosure uses. Free, instant, with the worked calculation and interpretation ranges.
- Land Development Loan Calculator The land development loan payment, total interest and true cost of borrowing for any principal, APR and term — the same amortisation maths every lender’s disclosure uses. Free, instant, with the worked calculation and interpretation ranges.
- Entitlement Cost Calculator The full price tag for entitlement cost: variable spend, one-off costs and an explicit contingency band, with the all-in per-unit figure quotes obscure. Free, instant, with the worked calculation and interpretation ranges.
- Permitting Cost Calculator The full price tag for permitting cost: variable spend, one-off costs and an explicit contingency band, with the all-in per-unit figure quotes obscure. Free, instant, with the worked calculation and interpretation ranges.
- Impact Fee Calculator The full price tag for impact fee: variable spend, one-off costs and an explicit contingency band, with the all-in per-unit figure quotes obscure. Free, instant, with the worked calculation and interpretation ranges.
- Infrastructure Cost Calculator The full price tag for infrastructure cost: variable spend, one-off costs and an explicit contingency band, with the all-in per-unit figure quotes obscure. Free, instant, with the worked calculation and interpretation ranges.
- Demolition Cost Calculator The full price tag for demolition cost: variable spend, one-off costs and an explicit contingency band, with the all-in per-unit figure quotes obscure. Free, instant, with the worked calculation and interpretation ranges.
- Environmental Remediation Calculator A transparent linear conversion for environmental remediation: the factor is visible, the arithmetic is shown, and the inverse direction comes free. Free, instant, with the worked calculation and interpretation ranges.
- Asbestos Removal Calculator The size and shape of the move between two figures — total percent, absolute delta and the annualised rate — for asbestos removal. Free, instant, with the worked calculation and interpretation ranges.
- Lead Paint Remediation Calculator A transparent linear conversion for lead paint remediation: the factor is visible, the arithmetic is shown, and the inverse direction comes free. Free, instant, with the worked calculation and interpretation ranges.
- Mold Remediation Calculator The size and shape of the move between two figures — total percent, absolute delta and the annualised rate — for mold remediation. Free, instant, with the worked calculation and interpretation ranges.
- Seismic Retrofit Cost Calculator The full price tag for seismic retrofit cost: variable spend, one-off costs and an explicit contingency band, with the all-in per-unit figure quotes obscure. Free, instant, with the worked calculation and interpretation ranges.
- ADA Compliance Cost Calculator The full price tag for ada compliance cost: variable spend, one-off costs and an explicit contingency band, with the all-in per-unit figure quotes obscure. Free, instant, with the worked calculation and interpretation ranges.
- Green Building Premium Calculator The green building premium payment, total interest and true cost of borrowing for any principal, APR and term — the same amortisation maths every lender’s disclosure uses. Free, instant, with the worked calculation and interpretation ranges.
- LEED Certification Cost Calculator The full price tag for leed certification cost: variable spend, one-off costs and an explicit contingency band, with the all-in per-unit figure quotes obscure. Free, instant, with the worked calculation and interpretation ranges.
- Energy Efficiency Upgrade Calculator Attainment of energy efficiency upgrade against a target, with the absolute gap and the weighted contribution for scorecard roll-ups. Free, instant, with the worked calculation and interpretation ranges.
- Solar for Commercial Calculator The scaling law behind solar for commercial executed with its exponent printed: a·x^n, plus the sensitivity that makes power laws unforgiving. Free, instant, with the worked calculation and interpretation ranges.
- Lease Abstracting Calculator A transparent linear conversion for lease abstracting: the factor is visible, the arithmetic is shown, and the inverse direction comes free. Free, instant, with the worked calculation and interpretation ranges.
- CAM Reconciliation Calculator The blend for cam reconciliation: weighted mean with the weights shown explicitly, so nobody has to guess whether line one counted. Free, instant, with the worked calculation and interpretation ranges.
- Tenant Improvement Allowance Calculator A transparent linear conversion for tenant improvement allowance: the factor is visible, the arithmetic is shown, and the inverse direction comes free. Free, instant, with the worked calculation and interpretation ranges.
- Lease Incentive Package Calculator The exact calendar arithmetic behind lease incentive package — leap-year-safe day counts converted into every unit people actually need. Free, instant, with the worked calculation and interpretation ranges.
Property Management 50 tools
- Rental Income Calculator Estimate monthly and annual cash flow from a rental property after mortgage, taxes, insurance and all operating costs.
- Gross Rental Yield Calculator Gross yield is scheduled rent over price — useful for screening a market, useless for underwriting a deal. Free, instant, with the worked calculation and interpretation ranges.
- Net Rental Yield Calculator Net rental yield is the cap rate: stabilized NOI over full investment including closing and renovation. Free, instant, with the worked calculation and interpretation ranges.
- Cash Flow per Unit Calculator The per-door monthly surplus after real vacancy, opex, debt and the reserve line most pro forms include and amateur forms skip. Free, instant, with the worked calculation and interpretation ranges.
- Per Door Analysis Calculator Per-door metrics (cost/door, rent/door, NOI/door, all-in/door) let you compare a 2-unit to an 80-unit on one axis. Free, instant, with the worked calculation and interpretation ranges.
- Property Management Fee Calculator Management percentage plus the ancillaries (leasing, maintenance markup, renewal fees) that dominate the true cost. Free, instant, with the worked calculation and interpretation ranges.
- Leasing Fee Calculator Leasing fees run 50–100% of first month’s rent (sometimes a full term’s split on renewals); this annualizes them. Free, instant, with the worked calculation and interpretation ranges.
- Renewal Fee Calculator Renewal fees (25–50% of a leasing fee) price the manager’s work to paper a lease extension. Free, instant, with the worked calculation and interpretation ranges.
- Maintenance Cost per Unit Calculator Maintenance budgeting normalized per door per year against the classic 1%-of-value + 1%-per-decade-of-age envelope. Free, instant, with the worked calculation and interpretation ranges.
- Turnover Cost Calculator Turnover is lost rent for the whole down-to-move-in gap plus paint/clean/repairs, the leasing fee, and showings admin. Free, instant, with the worked calculation and interpretation ranges.
- Vacancy Cost Calculator The scheduled rent that never arrives, split into the structural target and the fixable excess. Free, instant, with the worked calculation and interpretation ranges.
- Collection Loss Calculator Collection loss separates late-but-paid (cash timing) from written-off non-pay (true loss) — they need different fixes. Free, instant, with the worked calculation and interpretation ranges.
- Late Fee Income Calculator Late fees (3–8% of rent, state-capped in many places) as an income line — and as the leading indicator it really is. Free, instant, with the worked calculation and interpretation ranges.
- Application Fee Income Calculator Application fees (40–100) offset screening; in high-demand markets they profit the funnel itself. Free, instant, with the worked calculation and interpretation ranges.
- Pet Fee Income Calculator Pet rent (15–50/mo) and one-time fees — now the largest ancillary line in market-rate apartments. Free, instant, with the worked calculation and interpretation ranges.
- Storage Fee Income Calculator Garages, closets and under-stair storage monetized at 40–90/mo per slot with near-zero marginal cost. Free, instant, with the worked calculation and interpretation ranges.
- Parking Fee Income Calculator Priced parking as an NOI line: stall rate × occupancy + enforcement, then what it capitalizes to at exit. Free, instant, with the worked calculation and interpretation ranges.
- Laundry Income Calculator Washer-dryer rooms: ~2.5 cycles per door monthly at 3.5–5 per wash, netted through utilities and lease. Free, instant, with the worked calculation and interpretation ranges.
- Utility Bill-Back Calculator Utility bill-back: master-metered spend reallocated via submeter or RUBS; capture is the game, not the concept. Free, instant, with the worked calculation and interpretation ranges.
- RUBS Calculation Calculator Ratio Utility Billing System: master bills allocated by bedroom and/or occupant counts — no submeters needed. Free, instant, with the worked calculation and interpretation ranges.
- Water Sub-Meter Calculator Per-unit water meters convert a flat master bill into recovered spend plus measurable conservation. Free, instant, with the worked calculation and interpretation ranges.
- Electric Sub-Meter Calculator Electric submetering with admin fee/markup; the most state-regulated ancillary line in the building. Free, instant, with the worked calculation and interpretation ranges.
- Trash Removal Cost Calculator Trash is hauled by volume and frequency; diversion credits and compaction are the only two levers. Free, instant, with the worked calculation and interpretation ranges.
- Lawn Care Cost Calculator Landscape maintenance pricing by frequency, area and seasonal color; the per-1,000-sqft frame for comparing quotes. Free, instant, with the worked calculation and interpretation ranges.
- Snow Removal Cost Calculator Snow pricing: per-event base contract plus per-inch overages and salting; the liability clock starts at the first flake. Free, instant, with the worked calculation and interpretation ranges.
- Pest Control Cost Calculator The full price tag for pest control cost: variable spend, one-off costs and an explicit contingency band, with the all-in per-unit figure quotes obscure. Free, instant, with the worked calculation and interpretation ranges.
- Security System Cost Calculator The full price tag for security system cost: variable spend, one-off costs and an explicit contingency band, with the all-in per-unit figure quotes obscure. Free, instant, with the worked calculation and interpretation ranges.
- Fire Safety Compliance Calculator The share one quantity represents of another — the core reading behind fire safety compliance — with a second value folded in for direct comparison. Free, instant, with the worked calculation and interpretation ranges.
- Elevator Maintenance Calculator The share one quantity represents of another — the core reading behind elevator maintenance — with a second value folded in for direct comparison. Free, instant, with the worked calculation and interpretation ranges.
- HVAC Maintenance Calculator A transparent linear conversion for hvac maintenance: the factor is visible, the arithmetic is shown, and the inverse direction comes free. Free, instant, with the worked calculation and interpretation ranges.
- Roof Reserve Calculator A transparent linear conversion for roof reserve: the factor is visible, the arithmetic is shown, and the inverse direction comes free. Free, instant, with the worked calculation and interpretation ranges.
- Exterior Paint Reserve Calculator A transparent linear conversion for exterior paint reserve: the factor is visible, the arithmetic is shown, and the inverse direction comes free. Free, instant, with the worked calculation and interpretation ranges.
- Flooring Reserve Calculator A transparent linear conversion for flooring reserve: the factor is visible, the arithmetic is shown, and the inverse direction comes free. Free, instant, with the worked calculation and interpretation ranges.
- Appliance Reserve Calculator What a load actually costs to run over a year — watts-hours-to-dollars conversion for appliance reserve, the arithmetic utility bills hide. Free, instant, with the worked calculation and interpretation ranges.
- Plumbing Reserve Calculator The share one quantity represents of another — the core reading behind plumbing reserve — with a second value folded in for direct comparison. Free, instant, with the worked calculation and interpretation ranges.
- Electrical Reserve Calculator A transparent linear conversion for electrical reserve: the factor is visible, the arithmetic is shown, and the inverse direction comes free. Free, instant, with the worked calculation and interpretation ranges.
- Structural Reserve Calculator A transparent linear conversion for structural reserve: the factor is visible, the arithmetic is shown, and the inverse direction comes free. Free, instant, with the worked calculation and interpretation ranges.
- ADA Upgrade Reserve Calculator The scaling law behind ada upgrade reserve executed with its exponent printed: a·x^n, plus the sensitivity that makes power laws unforgiving. Free, instant, with the worked calculation and interpretation ranges.
- Energy Audit Savings Calculator What a load actually costs to run over a year — watts-hours-to-dollars conversion for energy audit savings, the arithmetic utility bills hide. Free, instant, with the worked calculation and interpretation ranges.
- LED Retrofit ROI Calculator The headline efficiency ratio for led retrofit roi: what the spend earned in total, as a multiple, and normalised per year so it can fight other options on one page. Free, instant, with the worked calculation and interpretation ranges.
- Smart Thermostat Savings Calculator A transparent linear conversion for smart thermostat savings: the factor is visible, the arithmetic is shown, and the inverse direction comes free. Free, instant, with the worked calculation and interpretation ranges.
- Solar Panel Savings Calculator What a load actually costs to run over a year — watts-hours-to-dollars conversion for solar panel savings, the arithmetic utility bills hide. Free, instant, with the worked calculation and interpretation ranges.
- Green Certification Premium Calculator The green certification premium payment, total interest and true cost of borrowing for any principal, APR and term — the same amortisation maths every lender’s disclosure uses. Free, instant, with the worked calculation and interpretation ranges.
- Tenant Screening Cost Calculator The full price tag for tenant screening cost: variable spend, one-off costs and an explicit contingency band, with the all-in per-unit figure quotes obscure. Free, instant, with the worked calculation and interpretation ranges.
- Background Check Calculator Attainment of background check against a target, with the absolute gap and the weighted contribution for scorecard roll-ups. Free, instant, with the worked calculation and interpretation ranges.
- Credit Check Calculator The share one quantity represents of another — the core reading behind credit check — with a second value folded in for direct comparison. Free, instant, with the worked calculation and interpretation ranges.
- Eviction Cost Calculator The full price tag for eviction cost: variable spend, one-off costs and an explicit contingency band, with the all-in per-unit figure quotes obscure. Free, instant, with the worked calculation and interpretation ranges.
- Legal Fee Calculator The full price tag for legal fee: variable spend, one-off costs and an explicit contingency band, with the all-in per-unit figure quotes obscure. Free, instant, with the worked calculation and interpretation ranges.
- Court Cost Calculator The full price tag for court cost: variable spend, one-off costs and an explicit contingency band, with the all-in per-unit figure quotes obscure. Free, instant, with the worked calculation and interpretation ranges.
- Lockout Cost Calculator The full price tag for lockout cost: variable spend, one-off costs and an explicit contingency band, with the all-in per-unit figure quotes obscure. Free, instant, with the worked calculation and interpretation ranges.