A DSCR of 1.0 is breakeven: the rent exactly covers the full payment. Most DSCR lenders treat 1.0 as the minimum to qualify, and many prefer about 1.25 so there is a cushion for vacancy or repairs. A higher ratio usually earns a better rate and a larger loan. Below 1.0 the rent does not cover the payment, and lenders often decline or ask for more money down.

How is DSCR calculated?

For a residential DSCR loan, DSCR is the property's monthly rental income divided by its monthly PITIA (principal, interest, taxes, insurance, and association dues). This calculator uses the effective rent after a vacancy allowance as the income. So a property renting for 2,565 a month after vacancy against a 2,498 PITIA has a DSCR of about 1.03.

What DSCR do lenders require?

It varies by lender and program. Many DSCR-loan programs set a floor around 1.0 to 1.25, some allow ratios below 1.0 with a larger down payment or a rate adjustment, and stronger ratios earn better pricing. Programs also differ on whether they use gross or vacancy-adjusted rent and whether interest-only is allowed, so confirm the exact definition with your lender.

What does my result mean?

If your DSCR is 1.25 or higher, the property comfortably covers its payment and should qualify broadly with better terms. Between 1.0 and 1.24 it covers the payment but with a thin cushion, so it qualifies with some lenders but not all. Below 1.0 the rent falls short of the payment, and you would likely need a larger down payment, a lower price, or higher rent to bring the ratio up. The max-loan figure shows the largest loan that still hits your target ratio.

DSCR Loan Calculator

Calculate a rental property's debt service coverage ratio (DSCR) from rent and PITIA, and check it against common 1.0 to 1.25 lender thresholds.

Monthly rent

Vacancy allowance

Loan amount

Interest rate

Loan term

years

Property tax

Insurance

Association dues

Target DSCR

Payment type

X f in

DSCR

1.03

Where this lands: 1.0 to 1.24: qualifies with some lenders
Effective monthly income: $2,565.00
Monthly debt service (PITIA): $2,497.64
Monthly cash flow: $67.36
Max loan at target DSCR: $236,265.12

DSCR against lender thresholds

Benchmark	DSCR needed	Your result
Breakeven	1.00	Pass
Lender preferred	1.25	Watch

Quick answer: With the example inputs this page loads by default, the headline result (DSCR) comes to 1.03. Calculate a rental property's debt service coverage ratio (DSCR) from rent and PITIA, and check it against common 1.0 to 1.25 lender thresholds. Change any input above and every figure updates instantly in your browser.

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A rental property's DSCR is its income divided by its debt service. In the residential DSCR-loan form used here, it is the effective monthly rent (after vacancy) divided by the monthly PITIA: principal, interest, taxes, insurance, and association dues. A DSCR of 1.0 means the rent exactly covers the payment; many lenders want about 1.25 for a cushion. This tool finds your DSCR, your monthly cash flow, and the largest loan that still hits a target ratio.

What this result means

A DSCR of 1.0 is breakeven, where the rent exactly covers the full payment, and most DSCR lenders treat it as the floor to qualify. Many prefer about 1.25 so a few vacant months or a repair do not push the property underwater, and a higher ratio usually earns a better rate and a higher loan amount. Below 1.0 the rent does not cover the payment, so lenders often decline or require a larger down payment to bring the ratio up. Thresholds vary by lender and program, so treat these as common reference points, not a guarantee. This is an estimate from the figures you entered, not a loan approval.

Assumptions

DSCR here is the effective monthly rental income divided by the monthly PITIA (principal, interest, taxes, insurance, and association dues). This is the residential DSCR-loan definition lenders qualify on, not the commercial NOI-based form, so operating expenses such as management and maintenance are not subtracted from the income.
Effective monthly income is your gross monthly rent minus a vacancy allowance (rent times one minus the vacancy percent). Set the vacancy to 0 to qualify on gross rent, which some DSCR programs use.
Principal and interest come from the standard amortization of the loan amount at your rate and term. Selecting interest-only replaces principal and interest with interest only (the loan times the monthly rate), which lowers the payment and raises the DSCR. Annual property tax and insurance are each divided by 12, and association dues are entered monthly.
Monthly cash flow is the effective income minus the full PITIA and is not floored: a DSCR below 1.0 shows a real negative, meaning the rent does not cover the payment.
The maximum loan at the target DSCR back-solves the allowable PITIA (income divided by the target ratio), subtracts the fixed taxes, insurance, and dues to get the payment the loan may carry, and divides by the amortizing payment-per-dollar factor (or the monthly rate for interest-only). If the fixed costs alone already exceed the allowable PITIA the maximum loan is 0.
DSCR is reported as not applicable when there is no debt service at all (an all-cash property with no taxes, insurance, or dues), since the ratio is undefined. All money figures are rounded to the nearest cent and the ratio to two decimals.
Lender DSCR thresholds and how each program treats vacancy, gross versus net rent, and interest-only vary widely by lender and loan program. The 1.0 and 1.25 lines here are common reference points, not universal rules.
This is an estimate for educational purposes only and is not a loan approval, a rate quote, or financial, legal, or tax advice. Confirm the exact DSCR definition, thresholds, and terms with your lender.

Key terms

Definitions for the terms this calculator uses, in our finance glossary .

What DSCR means and how it is calculated

The debt service coverage ratio (DSCR) measures whether a property’s income covers its debt. For a residential DSCR loan, the definition lenders qualify on is the monthly rental income divided by the monthly PITIA:

DSCR = effective monthly rent / monthly PITIA

Numerator (effective monthly income): the gross monthly rent minus a vacancy allowance, so rent x (1 - vacancy percent). Set the vacancy to 0 to qualify on gross rent, which some programs use.
Denominator (monthly PITIA): principal, interest, taxes, insurance, and association dues. Principal and interest come from the standard amortization of the loan at your rate and term; annual taxes and insurance are each divided by 12; association dues are entered monthly.

A DSCR of 1.0 means the rent exactly covers the full payment. Below 1.0 the property does not cover its own payment; the common lender preference is around 1.25 so there is a cushion for vacancy or repairs.

This is the residential DSCR-loan convention, not the commercial ratio (which divides net operating income by annual debt service). Because it qualifies on rent rather than net operating income, this calculator does not subtract operating expenses such as management or maintenance from the income; it subtracts only the vacancy allowance. Confirm the exact definition with your lender, since programs differ.

Interest-only

Selecting interest-only replaces the amortizing principal and interest with interest only, computed as loan x (annual rate / 12). That lowers the monthly payment and therefore raises the DSCR, which is why many investor DSCR programs offer an interest-only option.

Worked example

A single-family rental renting for $2,700 a month with a 5% vacancy allowance, financed with a $300,000 loan at 7.5% over 30 years, with $3,600 annual property tax, $1,200 annual insurance, and no association dues:

effective monthly income = $2,700 x (1 - 0.05) = $2,565
principal and interest = $300,000 amortized at 7.5% / 30y = $2,097.64
monthly PITIA = $2,097.64 + $3,600 / 12 + $1,200 / 12 + $0 = $2,497.64
DSCR = $2,565 / $2,497.64 = 1.03
monthly cash flow = $2,565 - $2,497.64 = $67.36

A DSCR of 1.03 clears the 1.0 breakeven line but falls short of the 1.25 many lenders prefer, so it qualifies with some lenders rather than all.

Maximum loan at a target DSCR

To find the largest loan the cash flow supports at a target ratio, the calculator back-solves the payment the loan may carry and then converts it to a loan balance:

allowable PITIA = effective income / target DSCR
allowable principal and interest = allowable PITIA - (taxes/12 + insurance/12 + dues)
maximum loan = allowable principal and interest / payment factor

where the payment factor is the standard amortizing payment per dollar of loan, r(1+r)^n / ((1+r)^n - 1) with r the monthly rate and n the number of monthly payments (or just the monthly rate for interest-only). Using the example above at a 1.25 target: allowable PITIA is $2,565 / 1.25 = $2,052, leaving $2,052 - $400 = $1,652 for principal and interest, which supports a loan of about $236,265. If the fixed taxes, insurance, and dues alone exceed the allowable PITIA, the maximum loan is 0.

What this includes and excludes

It includes the vacancy-adjusted rent, the amortizing (or interest-only) principal and interest, and the taxes, insurance, and association dues that make up PITIA. It does not subtract operating expenses (management, maintenance, utilities), and it does not model private mortgage insurance, a specific lender’s rent-qualification haircut (some use 75% of market rent from an appraisal), prepayment structures, or reserve requirements. DSCR is reported as not applicable when there is no debt service at all, since the ratio is undefined. Thresholds vary by lender and program, so this is an estimate for education, not a loan approval.

Sources

Fannie Mae, Multifamily and investor lending guidance on the debt service coverage ratio (DSCR as net operating income or rent over debt service).
Consumer Financial Protection Bureau, guidance on how lenders assess a mortgage payment, including taxes and insurance (PITI), at consumerfinance.gov.

Frequently asked questions

What is a good DSCR?: A DSCR of 1.0 is breakeven: the rent exactly covers the full payment. Most DSCR lenders treat 1.0 as the minimum to qualify, and many prefer about 1.25 so there is a cushion for vacancy or repairs. A higher ratio usually earns a better rate and a larger loan. Below 1.0 the rent does not cover the payment, and lenders often decline or ask for more money down.
How is DSCR calculated?: For a residential DSCR loan, DSCR is the property's monthly rental income divided by its monthly PITIA (principal, interest, taxes, insurance, and association dues). This calculator uses the effective rent after a vacancy allowance as the income. So a property renting for 2,565 a month after vacancy against a 2,498 PITIA has a DSCR of about 1.03.
What DSCR do lenders require?: It varies by lender and program. Many DSCR-loan programs set a floor around 1.0 to 1.25, some allow ratios below 1.0 with a larger down payment or a rate adjustment, and stronger ratios earn better pricing. Programs also differ on whether they use gross or vacancy-adjusted rent and whether interest-only is allowed, so confirm the exact definition with your lender.
What does my result mean?: If your DSCR is 1.25 or higher, the property comfortably covers its payment and should qualify broadly with better terms. Between 1.0 and 1.24 it covers the payment but with a thin cushion, so it qualifies with some lenders but not all. Below 1.0 the rent falls short of the payment, and you would likely need a larger down payment, a lower price, or higher rent to bring the ratio up. The max-loan figure shows the largest loan that still hits your target ratio.

Related calculators

Learn how this works

New to this topic? Our companion guide explains it in plain language: DSCR Loans Explained: Qualify on Rent, Not Your W-2

By Sam Sage Last reviewed July 2026.