The Quick Read: A DSCR loan ratio has two inputs: the rent the lender counts and the full monthly payment on the property, principal, interest, taxes, insurance and association dues. The ratio is counted rent divided by that payment, and the lender, not the lease or your spreadsheet, decides which rent counts. The rest of this piece shows how each input is chosen, tested and moved.
- The counted rent is usually the lower of the signed lease and the appraiser’s market rent.
- The payment is for the subject property only, and your other debts are not in it.
- Interest-only structures lower the payment used in the ratio and raise the result.
- Vacancy, repairs, management and utilities stay outside the ratio.
- Clearing the ratio does not mean the property cash-flows.
Most investors who hear about this ratio assume it is one number pulled from one place. It is a fraction. Both halves have rules, and the rules vary by lender. This guide walks through each input the way a file actually gets built.
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Rate source: Freddie Mac 30-yr average via FRED® — Federal Reserve Bank of St. Louis · effective Oct 15, 2026
Prefilled with starting assumptions — enter your own rent or nightly figures, taxes, insurance, and HOA for a more accurate picture.
Program parameters update from Lendmire’s centralized guideline source. Taxes and insurance are editable estimates.
As of Oct 15, 2026 · General Freddie Mac market benchmark, not a Lendmire loan offer. Rent, nightly rate, occupancy, taxes, and insurance are editable estimates. Short-term rental figures are estimates only and vary significantly by season, property type, management approach, and local short-term-rental rules — confirm local regulations before relying on them. Qualifying income for short-term rentals varies by program — some use appraisal market rent, others use documented STR history or projections — and is confirmed in underwriting. Not a Loan Estimate, approval, or commitment to lend. Program availability and eligibility are subject to lender guidelines, credit approval, property review, and underwriting.
For the full picture of how these loans work, see Lendmire’s complete DSCR loans guide.
Key Terms Defined
DSCR (debt service coverage ratio): A measure of whether a property’s rent covers its monthly payment. On 1-4 unit residential loans it is counted rent divided by PITIA.
PITIA: Principal, interest, taxes, insurance and association dues on the property. Flood insurance is included where it applies.
Market rent: The monthly rent an appraiser estimates the property would earn on the open market, based on comparable rentals.
In-place rent: The rent a current tenant pays under a signed lease.
Counted (qualifying) rent: The rent figure the lender actually puts in the numerator of the ratio.
Interest-only period: A stretch of the loan term in which the payment covers interest and no principal.
What Goes Into the Ratio at a Glance
| Input | What’s included | Who supplies it |
|---|---|---|
| Numerator | Counted rent, gross | Lease and appraisal |
| Denominator | P&I, taxes, insurance, dues | Loan terms, bills, quotes |
| Left out | Vacancy, repairs, management, utilities | Your own analysis |
| Left out | Your other debts and personal income | Not tested |
DSCR loans are designed for non-owner-occupied investment properties. Because they are business-purpose investor loans, they are reviewed differently from a standard owner-occupied mortgage. The loan is reviewed primarily on property-level rental income covering the payment, subject to lender guidelines.
How Is the Counted Rent Chosen?
Most programs count the lower of the signed lease and the appraiser’s market rent. A lease above market is capped at market. A lease below market stays at the lease. A vacant property uses market rent alone. This is a program convention, not a law, and some lenders handle it differently.
The appraiser produces two numbers on a DSCR file. Value drives loan-to-value (LTV), the loan balance as a percentage of the property’s value. Market rent drives coverage.
Market rent comes from a rent schedule. Fannie Mae’s appraiser update describes Form 1007 as the tool that documents estimated monthly market rent on a single-family investment property, and it can be used for condos too. The form is also posted by Freddie Mac as Form 1000. The appraiser lists comparable rentals, adjusts them and reconciles a final monthly figure. The form’s instructions say adjustments belong only where the differences are significant.
For 2-4 unit buildings, appraisers typically use a small-income-property report, which carries its own rent analysis. DSCR loans are not agency products. These forms are borrowed appraisal formats, nothing more.
Lease versus market: three cases
| Case | Counted rent | Effect |
|---|---|---|
| Lease above market | Market rent | Extra rent earns no leverage |
| Lease equals market | Either | No change |
| Lease below market | Lease | Costs you coverage |
Picture a tenant paying well under market on a legacy lease. The lender counts the lease, so the ratio looks thin even though the property could rent for more. Renewing that tenant at a documented market rent before the appraisal can lift the counted rent. Now flip it: an owner signs a premium lease with a friendly tenant. The premium shows up in real cash flow but earns nothing in the ratio.
Treatment varies across the network. Many programs use only the appraiser’s figure or the lower-of rule. A few lenders will allow a variance when a current lease exists. That difference alone can decide a deal. If a low appraisal rent comes in, specific rental comparables can support a challenge. Opinions without evidence do not move it.
Counted-rent edge cases
| Situation | Typical treatment |
|---|---|
| New or discounted lease | Often pushed to market rent |
| Month-to-month or expired lease | Often market rent |
| Vacant or purchase with no lease | Market rent only |
| 2-4 units | Each unit tested, rents combined |
| Family or company lease | May get closer review |
| Short-term rental | Program-specific, see below |
Documents usually include the executed lease, proof the tenant has paid (a deposit and first month’s rent on a new lease, or bank deposits on a seasoned one) and the appraisal with its rent schedule.
What Counts in the Payment?
The payment is PITIA on the subject property. That means principal and interest on the new loan, property taxes, hazard insurance, flood insurance where required and any association dues. Nothing else.
Your credit cards, car loan and other mortgages are not in the denominator. There is no debt-to-income test. Each property is also tested alone. A strong rental cannot lend its surplus to a weak one, and an LLC vesting does not change any input in the math, subject to program terms.
Taxes, insurance and dues are fixed pieces. They do not shrink when rent does. So a rent shortfall lands on principal and interest, and therefore on loan size, harder than it first looks.
Lenders pull these figures from tax records, insurance quotes and association statements. Gather them before you apply. Insurance repricing and tax reassessment are common reasons a ratio drifts between quote and final underwriting.
How Does Loan Structure Change the Ratio?
Structure changes the payment, and the payment is the denominator. The formula never changes. Rent is still divided by PITIA. What moves is how much of the loan is in the payment.
Across the network, the spine is the 30-year fixed. Extended terms such as a 40-year schedule and interest-only periods are available through select lenders. ARM structures exist for investors who want them.
| Structure | Payment used | Effect on ratio |
|---|---|---|
| 30-year fixed | Full amortizing P&I plus T-I-A | Baseline |
| 40-year term | Lower P&I | Higher ratio |
| Interest-only period | Interest plus T-I-A, no principal | Higher ratio |
Picture two identical rentals with the same rent and same loan balance. One uses a fully amortizing payment and sits near 1.00x. The other uses an interest-only period and clears the same property at a noticeably higher ratio. Nothing about the property changed. The payment did.
The catch is the step-up. After the interest-only period ends, the payment rises and so does the real obligation. Investors who pick this structure to clear a ratio should plan for the date that happens. Extended terms and interest-only periods are available through select lenders in the network, with terms that vary by program.
Above $2,500,000, the network generally holds to 30-year fixed structures, so those larger loans do not offer the same structural levers.
DSCR vs. conventional financing
There are two common ways to finance an investment property, and they qualify you differently — here’s how investors weigh them.
Why investors choose it
- Qualifies on the property’s rental income — no personal tax returns, W-2s, or pay stubs needed to document income.
- No personal debt-to-income ceiling to clear, so existing mortgages and obligations don’t cap your borrowing the same way.
- Can be closed in an LLC, keeping the property inside a business entity.
- Built for scaling — not held to the limit on number of financed properties that conventional financing applies.
- Underwriting centers on the deal: generally qualifies when the rent covers the payment, a 1.00x coverage ratio being a common baseline (confirmed in underwriting).
- Designed specifically for investment property, including long-term and, where the program allows, short-term rentals.
Where it’s strong
- Often the lowest ongoing financing cost for a buyer who fully qualifies on personal income — a fit for a first property or a cost-first purchase.
Trade-offs for investors
- Requires full personal income documentation and must fit within a debt-to-income limit — salary, existing debts, and other mortgages all count.
- Typically held in your personal name rather than a business entity.
- Caps how many financed properties you can carry, which can become a ceiling as a portfolio grows.
- Evaluates you as a borrower as much as the property, which usually means more paperwork.
How investors usually choose: a first or single property often optimizes for the lowest financing cost; portfolio builders often optimize for leverage, vesting in an LLC, and scaling past conventional caps. The right answer depends on your goals, the property, and current guidelines — both paths run through select lenders in Lendmire’s wholesale network, with eligibility and terms confirmed in underwriting.
What Is Not an Input?
Vacancy, repairs, management, utilities and capital expenses do not appear in the ratio. This is the part that trips up a lot of investors. Clearing 1.00x does not mean positive cash flow. It means rent equals the PITIA payment, before any operating cost.
This is also why calculators disagree. The textbook version, described on Wikipedia’s debt service coverage ratio page, divides net operating income by debt service. Residential DSCR programs on 1-4 units generally use gross rent over PITIA, with no expense deductions. Some calculators blend the two and apply a vacancy haircut. A vacancy-adjusted number is a good personal sanity check. It is not what the lender computes.
Treat the lender ratio as a qualifying test and your own spreadsheet as the investment test. Run both.
Short-Term Rentals: Where the Monthly-Rent Form Falls Short
Form 1007 is a monthly-rent form. It estimates what the property would earn on a traditional lease. For a short-term rental, that can sit well below actual nightly income. Lenders differ on whether they accept projections from a rental-data service or fall back on the appraiser’s long-term figure.
For short-term rental collateral, across the network, purchase leverage tops out at 75% LTV, and refinance runs around 70%. A cash-out on short-term-rental collateral is capped at 70%. Expect a 640+ score and about 12 months of hosting history. Coverage floors are 1.00 on purchases and refinances. Short-term rental rules can vary by city, county, HOA and property type, so investors should confirm local rules before relying on projected rental income. Final terms depend on lender guidelines, property type, leverage, and the borrower’s complete credit picture.
Where the Ratio Falls Below 1.00
Select programs begin at 1.00. Many investors fall short of that on first pass. Coverage below 1.00 is available through select lenders in the network, with leverage and terms adjusted. A separate path, no-ratio, is available only through select lenders, generally for borrowers who already own a primary residence. Lendmire’s piece How a No-Ratio DSCR Loan Works When the Rent Doesn’t Cover the Payment covers those mechanics. Eligibility depends on lender guidelines, credit profile, reserves and the property.
What Moves the Ratio Before Closing?
Inputs can change between quote and the final file.
| Event | Direction | Why |
|---|---|---|
| Appraised rent lands light | Ratio falls | Smaller numerator |
| Insurance reprices | Ratio falls | Larger denominator |
| Taxes reassessed | Ratio falls | Larger denominator |
| Larger down payment | Ratio rises | Smaller loan, smaller payment |
| Interest-only structure | Ratio rises | Principal dropped from payment |
If the appraised rent lands below the figure you modeled, the ratio and the maximum loan fall together. You can respond with more down payment, a smaller loan, an interest-only structure or a different program. A bigger down payment lowers the payment and can lift the ratio. It does not erase leverage caps, credit floors, reserve rules or property eligibility. The strongest files clear both tests: enough equity and enough rental coverage.
On most files, purchase leverage runs 75%-80% LTV, or 20%-25% down. Select high-leverage programs reach 85% LTV on a purchase, or 15% down, with roughly a 700+ score. Cash-out refinances top out around 75% LTV, with about 6 months of seasoning as the common expectation. Credit floors start at 620 in parts of the network, most programs want about 660 and 700+ opens the strongest leverage tiers. Reserves vary by lender, leverage, loan size and transaction type. They commonly run around 6 months of PITIA and often step up to about 9 months on loans above $1,500,000. Standard programs run to $3,000,000. Manufactured homes, log homes and barndominiums are not offered. Qualification is subject to lender guidelines. This is not a commitment to lend.
Working It Backward
The ratio is a lever. Rearrange it and it tells you what you can borrow.
Divide the counted rent by the minimum coverage the program wants. That gives the maximum PITIA. Subtract the fixed pieces, taxes, insurance and dues. What remains is the room for principal and interest, and that room sets the loan size. Match periods when you do this: monthly rent with monthly payment, or annual with annual. Never mix them.
For a rent that rises or falls, rerun the same steps. A property with high taxes and a thin rent leaves very little room for principal and interest. That is the reason a deal that looked fine on gross rent can support a much smaller loan than you expected. Where rent is short, lenders in the network also review cases where the loan is cut, the structure changes or the program changes.
Pre-Application Inputs Checklist
- The signed lease, or confirmation the property is vacant.
- Proof the tenant paid: deposit and first month’s rent, or bank deposits.
- Current tax figures for the property.
- A current insurance quote, with flood coverage where it applies.
- Association dues, if any.
- Your own vacancy, repair and management assumptions, run separately.
- A plan for any lease that sits below market.
Frequently Asked Questions
Does the lender use my lease or the appraiser’s rent?
Usually the lower of the two. A lease above market is capped at the appraiser’s figure. A few lenders in the network allow a variance when a current lease exists, so the same file can land differently depending on the program.
Is a 1.00 ratio the same as breaking even?
No. The ratio compares rent to PITIA only. Repairs, vacancy, management, utilities and capital costs sit outside it. A property can clear 1.00x and still lose money once real operating costs are counted.
Does an interest-only period change the formula?
The formula stays the same: rent divided by PITIA. The payment drops the principal portion, so the ratio rises. The payment steps up when the interest-only period ends, so plan for that date. Availability depends on select lenders in the network.
Can I combine the surplus from one rental to cover another?
No. Each property is tested alone on its own rent and its own payment. Your other rentals and your personal debts are not pooled into the ratio.
Does short-term rental income count?
It depends on the lender. Many programs rely on the appraiser’s monthly-rent figure, which can sit below actual nightly income. Others accept documented hosting history. Network short-term-rental programs expect about 12 months of hosting history and a 640+ score.
If you are buying or refinancing a rental property and want to see how the numbers work, Lendmire can help you compare DSCR loan options based on the property income, credit profile, leverage and investor goals. A DSCR number is only as good as the rent and payment behind it, so test both before you write the offer. Tax treatment varies; consult a qualified professional.
About Lendmire
Lendmire (NMLS# 2371349) is a mortgage brokerage focused on DSCR investor financing, helping arrange programs through wholesale and investor-lending channels in 41 markets, including Washington, D.C. DSCR loans are evaluated by the lender on property cash flow rather than personal income, subject to lender guidelines, supporting LLC closings and accommodating investors with four or more financed properties. Scotsman Guide Top Mortgage Workplace in both 2025 and 2026.
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References
1. Fannie Mae Appraiser Update
2. Freddie Mac Form 1000 / Fannie Mae Form 1007
3. Wikipedia, Debt service coverage ratio
This article is part of Lendmire’s DSCR loan program — full qualification details, guidelines, and scenarios live on the program page.
Related reading: No-Reserves DSCR Loan vs Standard DSCR Loan on Pricing and LTV · DSCR vs Mixed-Document Loan When Both Spouses Are on Title · Renting to a Parent vs. a Stranger on a DSCR Loan
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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Important disclosures. Lendmire (NMLS# 2371349) is a licensed mortgage brokerage. Lendmire is not a direct lender, depository institution, or financial advisor. All loan inquiries are subject to lender underwriting; this article does not constitute a commitment to lend. Rates, terms, and program guidelines are subject to change without notice and vary by borrower profile, property type, and state. Information in this article is general in nature and is not financial, legal, or tax advice. Equal Housing Opportunity. NMLS Consumer Access: nmlsconsumeraccess.org.