Multifamily underwriting calculators
Cap rate, debt yield, commercial DSCR, cash-on-cash, and loan sizing tools for 5+ unit apartment buildings—not residential 1–4 unit programs.
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Cap Rate & NOI Calculator
Underwrite income and expenses into stabilized NOI and cap rate.
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Debt Yield Calculator
Model lender-side risk with NOI-to-loan sizing pressure.
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Commercial DSCR Calculator
Quickly evaluate DSCR and debt-service coverage sensitivity.
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Cash-on-Cash Calculator
Estimate levered annual return on invested equity.
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Loan Sizing Calculator
Find the binding constraint across DSCR, debt yield, and LTV.
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Portfolio Analyzer
Roll up NOI, DSCR, LTV, and debt yield across your 5+ unit holdings.
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Closing Cost Calculator
Estimate lender, third-party, title, legal, and brokerage costs.
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BRRRR / Rehab ARV Calculator
Model buy + rehab + ARV and refi recycle — cash left, DSCR, and CoC.
Featured financing guides
Use tools with adjacent resources
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Pair with financing guides
Understand why each metric moves before relying on calculator outputs.
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Pressure-test structure choices
Connect underwriting outputs to agency vs bridge and bank vs debt-fund decisions.
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Match metrics to operator profile
See how leverage, risk tolerance, and reporting capacity vary by investor type.
Need 1–4 unit DSCR calculators?
These tools cover 5+ unit commercial multifamily. For single-family and small-rental DSCR calculators, visit DSCR Authority. For Canadian multifamily or cross-border scenarios, see LendCity in the links below.
DSCR Authority — US 1–4 unit DSCR
Canonical ACTION for residential DSCR (1–4 units): calculators, state guides, and lender matching — not this site.
LendCity — Canadian multifamily & CMHC MLI
Canonical ACTION for CMHC MLI Select and Canadian multifamily — do not clone those guides on Multi-Family USA.
LendCity — Cross-border financing
Canadians buying US rental or multifamily — entity and lender-fit planning on the hub.
Frequently asked questions
Are these calculators for 1–4 unit residential loans?
Which calculator should I run first?
Do I need an account to use the calculators?
Turn calculator output into a debt structure and lender match.
Related
resources
Hand-picked next steps — go deeper, compare alternatives, or run the numbers.
- Commercial DSCR explained
Coverage screens lenders actually run on apartment NOI versus PITIA shortcuts.
- Multifamily underwriting basics
How lenders size 5+ unit debt on NOI, DSCR, debt yield, and LTV.
- Agency stabilized loans
Fannie Mae and Freddie Mac execution for cash-flowing apartments.
- Agency vs bridge
When to take out with agency versus bridging a value-add plan.
- Loan types
Agency, bridge, bank, CMBS, debt fund, and FHA/HUD paths.
- What is US multifamily (5+ units)
The commercial 5+ unit definition, why residential DSCR does not apply, and how this site is structured.