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DSCR Calculator
Estimate the debt service coverage ratio lenders use to underwrite investor and rental property loans, and see whether the deal clears a typical lender minimum.
DSCR
1.10x
Below the lender minimum entered above.
Annual NOI
$24,840
Annual debt service
$22,538
NOI cushion vs payment
$2,302
Underwriting check
DSCR is positive but thin. Many DSCR lenders look for at least 1.20x; some go lower with offsetting reserves or rate adjustments.
Monthly debt service
$1,878
Required NOI for minimum
$27,046
NOI shortfall to minimum
$2,206
Debt service coverage ratio is annual NOI divided by annual mortgage payments. DSCR investor loans size and price the loan based on the property income, so the ratio drives both qualification and pricing.
EveryCalc calculators are designed for fast, practical estimates with transparent inputs and no required account. We use plain formulas, visible assumptions, and related tools so visitors can check the result from more than one angle.
Results are informational only. For financial, tax, legal, medical, construction, or other high-impact decisions, verify the output against primary sources or a qualified professional.
Learn more about our review process on the EveryCalc methodology page.
Calculation notes and example
Debt service coverage ratio formula
Annual effective gross income equals scheduled rent reduced by the vacancy percentage. Annual NOI equals that income minus the entered operating expenses. Annual debt service is the fixed monthly loan payment multiplied by 12, and DSCR equals NOI divided by annual debt service. The calculator also multiplies debt service by the lender's target ratio to show required NOI and the shortfall or cushion. It does not reproduce a particular lender's rent, expense, or PITIA convention.
Rental-loan DSCR example
At $3,100 of monthly rent and 5% vacancy, annual effective gross income is $35,340. Subtracting $875 of monthly operating expenses produces $24,840 of annual NOI. A $250,000 loan at 8.25% over 30 years has modeled annual principal and interest of about $22,538, for a DSCR near 1.10x. That covers the payment, but it misses a 1.20x target unless NOI rises, the loan amount falls, or the rate and payment improve.
Match the lender's underwriting method
- Ask whether the lender uses actual lease rent, market rent from an appraisal, or the lower of the two, and whether a standard vacancy factor is imposed.
- Confirm whether taxes, insurance, and association dues belong in operating expenses or the lender's debt-service denominator so they are not omitted or counted twice.
- A ratio barely above the minimum can still leave weak dollar cash flow. Review the NOI cushion and cash reserves alongside DSCR.
Useful companion tools: Rental Cash Flow Calculator, Rental Property Calculator, Cap Rate Calculator, and Cash-on-Cash Return Calculator.
How to interpret the dscr result
Best use
Use the result as a planning number for comparing payments, rates, returns, tax reserves, or cash-flow choices before you request a quote or make a commitment.
Cross-check
Compare the answer with the contract, lender estimate, tax form, brokerage statement, payroll record, or invoice that will control the real-world outcome.
Watch for
Do not rely on a single optimistic rate, return, or fee assumption. Money pages work best when you run low, base, and high cases and keep professional advice separate from the estimate.
This page belongs to the Finance calculator library, so the answer should be read in the context of the decision you are modeling rather than as a universal rule.
Before relying on this dscr estimate
Most calculator mistakes come from the inputs, not the arithmetic. Use this short audit before you reuse the answer in a spreadsheet, quote, application, or important conversation.
Confirm source numbers
Match balances, rates, fees, taxes, income, and payment dates against the lender quote, payroll record, tax form, statement, invoice, or contract.
Separate cash flow from total cost
A lower monthly payment can still cost more over time if fees, interest, taxes, or a longer term are hidden in the structure.
Run conservative cases
Test at least one higher-cost or lower-return case before using the output for a purchase, refinance, investment, loan, or tax decision.
Rerun this page when the rate, price, term, fee, tax rule, income, expense, or expected holding period changes.
Sources used for this calculator
These primary or official references help define the rules, terminology, safety checks, or source documents behind this estimate. Source links were checked in July 2026. They do not turn the calculator output into a quote, appraisal, tax determination, or professional opinion.
- Publication 527: Residential Rental Property
Internal Revenue Service
Primary federal reference for rental income, operating expenses, depreciation, and reporting; calculator cash flow is not taxable income.
How to Use
- Enter the monthly rent, vacancy assumption, and recurring monthly operating expenses.
- Add the loan amount, interest rate, and term you expect on the investor loan.
- Set the lender minimum DSCR — most non-owner-occupied DSCR loans require at least 1.10 to 1.25x.
- Review DSCR alongside annual NOI, annual debt service, and the NOI cushion versus the lender minimum.
Frequently Asked Questions
What is DSCR?
DSCR — debt service coverage ratio — is annual net operating income divided by annual mortgage payments. A 1.25x DSCR means NOI covers the loan payment 1.25 times over.
What DSCR do lenders typically want?
Many DSCR investor loans require at least 1.20 to 1.25x. Some programs allow 1.00x, occasionally lower with rate adjustments, larger reserves, or limited cash-out.
Is DSCR the same as cash flow?
No. DSCR is a ratio that compares NOI with debt service. Cash flow is the dollar amount left over after debt service. A 1.25x DSCR can be a small or large dollar cushion depending on property size.
Should I include taxes and insurance in DSCR?
Most lenders calculate DSCR on a PITIA basis, which includes principal, interest, taxes, insurance, and association dues. This calculator separates the loan payment so you can include taxes and insurance in operating expenses.
Can DSCR replace personal income for qualification?
On true DSCR investor loans, yes. Lenders qualify based on the property's income coverage rather than the borrower's W-2 income, which is why the ratio matters so much for non-owner-occupied financing.
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Set the vacancy assumption that pushes NOI up or down before checking the ratio.
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