A DSCR loan is a mortgage on an investment property that is qualified on the property's rent roll rather than the borrower's tax returns, pay stubs, or W-2s. The qualifying metric is the debt service coverage ratio — rent divided by the monthly payment — and many programs price to a minimum ratio at or above 1.0, meaning the rent must at least cover principal, interest, taxes, insurance, and association dues.
This site publishes information about how financing works, not investment or lending advice. Program terms vary by lender and change over time; every figure below names its source and its as-of date.
What is a DSCR loan and how is the ratio calculated?
DSCR is the ratio of a property's gross rental income to its total housing payment. A property renting for $2,500 a month against a $2,100 payment carries a DSCR of about 1.19. The ratio is calculated using the lease or the appraiser's opinion of market rent, and against the full payment including escrows, not the note alone.
The formula is simple enough to run on one line: gross monthly rent divided by PITIA — principal, interest, property taxes, insurance, and association dues. Some lenders compute the denominator from the note rate at qualification; others stress the payment at a higher rate. That choice moves the ratio more than most borrowers expect.
Because the qualifying file is the lease and the appraisal, self-employed investors, partnership buyers, and borrowers with complex returns often use DSCR loans to avoid the documentation burden of agency underwriting. The trade is a higher rate and tighter equity requirements than a Fannie Mae or Freddie Mac loan on the same asset.
What DSCR do lenders require on a rental property?
Most programs cluster around a 1.0 minimum, with pricing tiered from there: ratios of 1.20 to 1.25 typically earn the best quotes, and some lenders write loans below 1.0 — so-called negative DSCR — at materially higher rates and lower loan-to-value caps. Fannie Mae's Selling Guide, as of 2025, similarly allows debt service coverage ratio testing on one- to four-unit investment properties, with eligibility conditions and minimums that depend on the transaction, so agency and non-agency versions of the idea now sit alongside each other in the market.
The tiering matters because a small ratio change reprices the loan. In an illustration using the figures above, the same $2,500 rent supports about a $2,083 payment at 1.20, versus $2,500 at 1.0 — roughly a 17 percent difference in borrowing capacity at the same rate. Lenders publish the matrix; the borrower's job is to notice which ratio a quote assumes.
Rent used in the calculation is usually the lesser of the lease amount or the appraiser's market-rent opinion on a one-unit. On small multifamily, lenders may underwrite to the in-place rent roll with a vacancy factor applied, commonly near 25 percent for thinner files, which is a haircut agency underwriting also uses when it counts 75 percent of gross rent.
How much down payment and what rates?
Non-agency DSCR programs commonly require 20 to 25 percent down on purchases and cap cash-out near 70 to 75 percent loan-to-value, terms that track agency investment-property limits; Fannie Mae's Selling Guide as of 2025 sets a maximum LTV of 85 percent on one-unit investment purchases, stepping down for two-to-four units, and the non-agency market generally prices above those caps rather than below them.
Rates carry a premium over agency investment-property quotes. The premium compensates the lender for reduced documentation, and it widens as the ratio falls, as the LTV rises, and as prepayment protection lengthens. Borrowers with strong credit, a 1.25-plus ratio, and 30 percent equity routinely see quotes several percentage points below thin-file borrowers on the identical asset.
Prepayment penalties are standard. A common structure is a three- to five-year stepdown — 5 percent of the balance in year one, declining to zero — in exchange for a rate cut. Agency loans carry no prepayment penalty, which is one of the few bright lines between the two markets.
Related stories: Portfolio Loans vs Agency Mortgages for Five-Plus-Unit Investors · Construction-to-Permanent Loans: Interest Reserves Explained for Investors.
When does a DSCR loan beat agency financing?
The loan earns its place when the property qualifies easily but the borrower does not, or when speed and simplicity are worth the rate premium. Four situations recur: self-employed buyers whose returns understate spendable income; entity purchases in LLCs that agency guidelines handle restrictively; investors scaling past the agency financing limit on the number of financed properties; and closings that need weeks, not months.
Fannie Mae caps financed-property counts for a single borrower — ten financed properties under standard eligibility as of the 2025 Selling Guide — and requires personal income documentation on every one. DSCR lenders generally do not count an investor's other properties against a file, because the file is the asset.
The reverse case is equally common. A W-2 borrower buying one duplex with strong income usually pays less through an agency loan, which counts 75 percent of the tenants' rent toward qualification per the Fannie Mae Selling Guide and prices to investment-property loan-level pricing adjustments rather than DSCR tiers.
What breaks the math on a DSCR loan?
The ratio is only as honest as the rent, and the classic failure is a pro-forma rent the market has not confirmed. A lease at an above-market rate inflates the ratio at underwriting and sets up a payment the property cannot carry once the tenant turns over. Appraiser market-rent opinions, not the seller's rent roll, are the check.
Three further weak points show up in worked files. Variable insurance costs — acute in coastal and wildfire-exposure states since 2023, per repeated state insurance-department rate filings — raise the PITIA denominator and shrink the ratio without any change in rent. Short-term-rental income is discounted or excluded by many programs unless the lender has a dedicated STR product. And interest-only teaser periods, which some programs offer, hold the payment down for five or ten years before the ratio is reset against an amortizing payment.
None of these are reasons to avoid the product. They are the inputs that decide whether a 1.25 at closing is a 1.25 at the first renewal, and the data to check them — the lease, the insurance binder, the tax bill — sits in the file before the rate is locked.
How should a borrower compare a DSCR quote against an agency quote?
Line up four numbers side by side: the rate, the total closing costs, the prepayment penalty schedule, and the maximum LTV on the intended cash-out or purchase. The comparison is honest only when both quotes assume the same rent and the same escrow amounts, because a DSCR lender using an optimistic market-rent figure can quote a better ratio on identical economics.
The decision usually reduces to a price on documentation. Agency financing costs less per month but demands personal income paperwork and counts against portfolio caps. DSCR financing costs more but closes on the asset's cash flow. Which one wins depends on the borrower's tax situation, the number of properties already financed, and how long the debt is expected to stay in place — not on the headline ratio.