DSCR Calculator
Rent & the loan
Your result will appear here
Fill in the fields on the left and this updates as you type.
Know what this estimate is based on
- Jurisdiction
- United States — state and local practice
- Scope and limitations
- Educational estimate only. U.S. real estate costs are local: property tax rates, transfer and recording taxes, title practice, who customarily pays which closing cost, and landlord-tenant rules all change by state and often by county or city. Agent commission is negotiable and, since the 2024 NAR settlement, buyer-agent compensation is negotiated separately rather than assumed. Only a lender's Loan Estimate, a title company's fee sheet or a signed contract binds a number.
- Source links checked
- Jul 30, 2026
Built and regression-tested by Smart Tools Lab. It has not been individually reviewed by a licensed financial, tax, or legal professional.
How to use
- 01
Enter the gross monthly rent — the market rent, not your vacancy-adjusted figure. Lenders use gross.
- 02
Enter the loan amount, rate and term.
- 03
Open Advanced options for property tax, insurance and HOA. DSCR is measured against the full PITIA payment, not just principal and interest.
- 04
Set the lender's minimum. Most rental lenders want 1.20 to 1.25.
- 05
Read the ratio and the rent needed to clear it, then the table showing the same loan at other rents.
Formula
The principal and interest payment is the standard amortising payment on the loan at its rate and term. PITIA adds monthly property tax, monthly insurance and any HOA. DSCR is the gross monthly rent divided by PITIA, and it renders as a dash rather than a number when there is no payment to cover — an all-cash purchase has an undefined ratio, not an infinite one. The rent needed to clear is PITIA times the lender's minimum, and the shortfall is that figure minus your rent, shown as a surplus when it is negative. Working backwards, the largest payment that still clears is the rent divided by the minimum; subtracting taxes, insurance and HOA leaves the largest principal and interest payment, and inverting the amortisation formula on that gives the largest loan. The lender minimum keeps its default with a floor of 0.5, because a minimum of zero passes every deal ever entered.
Example
A property renting for $2,400 a month against a $199,000 loan at 7% over 30 years, with $3,180 of tax and $1,600 of insurance. Step 1 — Principal and interest: $1,324 a month. Step 2 — PITIA: $1,324 + $265 tax + $133 insurance + $0 HOA = $1,722. Step 3 — DSCR: $2,400 / $1,722 = 1.39. Step 4 — Against a 1.25 minimum, the rent needed is $1,722 x 1.25 = $2,153. You are $247 a month above it. Step 5 — Working backwards, the largest loan that still clears 1.25 at this rent is about $228,700 — roughly $30,000 more than you are borrowing. Worth noting what PITIA does here. On principal and interest alone the ratio would be 1.81, comfortably clear. Adding taxes and insurance drops it to 1.39. In a high-tax county the same loan and the same rent can fail outright, which is why two identical houses in different counties finance differently — and why a reassessment after purchase can quietly push a passing property under the line at refinance.
Definitions
- DSCR
- Debt service coverage ratio: property income divided by its debt payment.
- PITIA
- Principal, interest, taxes, insurance and association dues — the full payment DSCR is measured against.
- DSCR loan
- A rental mortgage underwritten on the property's income rather than the borrower's, with no DTI test.
- Gross market rent
- The rent the property commands, before vacancy. What lenders use in the numerator.
- Lender minimum
- The DSCR threshold a lender requires, commonly 1.20 to 1.25.
- Debt service
- The mortgage payment. Annualized when comparing against annual income.
- Interest-only
- A payment structure covering interest but no principal. Raises DSCR and leaves the balance unchanged.
- Reserves
- Months of payments a lender requires you to hold in cash after closing, commonly six to twelve.
- Loan-to-value
- The loan as a share of the property's value. Lowering it is the most reliable way to raise DSCR.
- Appraiser's market rent
- An independent rent estimate on form 1007, used when it is lower than the actual lease.
- Coverage shortfall
- How far the rent falls short of the lender's required multiple of the payment.
- Debt-to-income
- The personal test DSCR replaces — your debts against your income, not the property's.
Good to know
The number that replaced your pay stub
DSCR loans underwrite the property rather than the borrower. There is no debt-to-income calculation, no tax returns and often no employment verification — the question is whether the rent covers the payment, and the answer is the debt service coverage ratio. At 1.39 this property clears the 1.25 most rental lenders require with meaningful room. That structure exists because conventional underwriting breaks down for investors: each additional financed property worsens your personal debt-to-income ratio even when every one of them is profitable, and Fannie Mae caps financed properties at ten regardless. DSCR lending removes both constraints, which is why it became the standard product for investors building a portfolio. The trade is price: expect a rate roughly 1% to 2% above a comparable owner-occupied loan, 20% to 25% down, and often a prepayment penalty in the first three to five years.
What goes into the payment, and what the lender counts as rent
The denominator is PITIA — principal, interest, taxes, insurance and HOA association dues — $1,722 a month here. Every lender includes all five, and the ones investors most often forget are the last two, because insurance on a non-owner-occupied property costs more than a homeowner policy and HOA dues can be several hundred dollars. The numerator is where lenders differ. Most DSCR programs use gross rent rather than net operating income, which is more generous than a commercial underwriter would be and quietly means the ratio says nothing about vacancy, maintenance or management. A property at a 1.20 DSCR on gross rent can produce negative cash flow once those allowances are taken. Whether the lender uses the lease rent or a market rent from the appraiser's rent schedule also matters, and on a below-market lease it matters a lot — most take the lower of the two.
Reading it as a stress test
The ratio is a margin of safety expressed as a multiple, and it converts directly into how much can go wrong. A 1.39 DSCR means rent can fall 28% before the property stops covering its debt — roughly three and a half months of vacancy a year, or a substantial rent cut. At 1.25 the cushion is 20%; at 1.05 it is 5%, which is about eighteen days. That framing is more useful than the pass-or-fail comparison against the lender's minimum, because the lender's minimum protects the lender's position, not yours. The other direction is just as useful: the largest loan that still clears 1.25 here is $228,718, which is the honest borrowing capacity of this property regardless of what any appraisal says it is worth.
The levers, in order of how much they move it
Four inputs change the ratio and they are not equally available. Rent is the most powerful and the slowest — a $247 monthly surplus becomes far larger with a below-market lease brought to market, but only at renewal or turnover. Loan amount is the most reliable: putting more down reduces the payment proportionally and is entirely within your control at purchase. Rate is largely the market's decision, though buying points converts cash into a permanently lower payment, and on a DSCR loan that trade is priced against a ratio rather than a budget. Term is the quiet one: extending from 25 to 30 years, or taking an interest-only period, drops the payment sharply and lifts the ratio without changing anything real about the property. Interest-only DSCR products exist for exactly this reason, and they flatter the ratio in a way worth being honest with yourself about.
Where the product gets used, and where it gets people into trouble
DSCR loans suit an investor with strong properties and a complicated tax return — self-employed borrowers, anyone with heavy depreciation suppressing reported income, and portfolio builders past the conventional property cap. They fit short-term rentals too, though lenders vary widely in whether they will underwrite on projected nightly revenue and most apply a haircut. Where they cause damage is at the thin end: because the underwriting ignores the borrower entirely, nothing in the process asks whether you have reserves for a vacant quarter or a failed HVAC. Most programs require six months of PITIA in reserves and that requirement exists for a reason. A 1.05 ratio approved by a lender who never looked at your finances is a loan that works until the first bad month, and the bad month is not a possibility, it is a schedule.
Frequently asked questions
What is DSCR?
Debt service coverage ratio — the property's income divided by its debt payment. A DSCR of 1.25 means the rent covers the payment 1.25 times over. It is how a lender decides whether the property, rather than you, can carry the loan.
What is a DSCR loan?
A rental mortgage underwritten on the property's income instead of the borrower's. No tax returns, no debt-to-income test, no employment verification in most cases. Self-employed investors use them heavily, and the rate typically runs 0.5 to 1.5 points above a conventional loan.
What minimum do lenders require?
Commonly 1.20 to 1.25. Some will write at 1.0, meaning the rent exactly covers the payment, usually at a higher rate or a lower loan-to-value. Below 1.0 the property does not cover its own debt and you are funding the shortfall from elsewhere.
Does DSCR use gross or net rent?
Gross market rent, which is why there is no vacancy field on this page. Lenders take the lease rent or an appraiser's market rent estimate, whichever is lower. Your own analysis should still budget for vacancy — the lender's underwriting will not do it for you.
What does PITIA include?
Principal, interest, taxes, insurance and association dues. All five count against the rent, which is why a property with a modest mortgage but high taxes can fail a DSCR test that principal and interest alone would pass.
How is this different from debt-to-income?
DTI asks whether you can pay your debts from your income. DSCR asks whether this property can pay its own. A borrower with high personal debt can qualify for a DSCR loan on a strong property, and a high earner cannot rescue a property whose rent does not cover the payment.
What if I fail the minimum?
Two levers move it meaningfully: a larger down payment, which shrinks the payment, or a property whose rent is higher relative to its price. Taxes and insurance are set by the property, so they are rarely negotiable, and rate shopping moves DSCR less than people hope.
Can a DSCR loan be interest-only?
Many can, and it raises the ratio substantially because the payment falls. It also means no principal is repaid, so the debt does not shrink. Lenders sometimes qualify on the interest-only payment, which is worth understanding before treating the higher DSCR as a stronger deal.
Do short-term rentals qualify?
Increasingly yes, though lenders treat the income more cautiously — often using a market rent estimate or an average from a platform report rather than peak-season figures. Expect a higher minimum DSCR and a larger down payment.
Does DSCR change over time?
Yes, in both directions. Rent growth raises it; a tax reassessment or an insurance increase lowers it. A property that passed at 1.26 when you bought it can be under 1.20 two years later without the rent falling at all.
Is a higher DSCR always better?
For a lender, yes. For you, a very high DSCR often means you put in a lot of cash, which suppresses your cash-on-cash return. The two metrics pull in opposite directions, and the right balance depends on whether you are optimizing for financeability or for return.
What else do DSCR lenders check?
Credit score, reserves — usually six to twelve months of payments in the bank — and the property's condition and appraisal. The absence of an income test does not mean the absence of underwriting.