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How to Calculate DSCR: Rental Property Loan Examples

Calculator, rental income worksheet, house keys and a model rental house on a desk, showing how to calculate DSCR

To calculate DSCR for a rental property loan, divide the property’s gross monthly rent by its monthly PITIA (principal, interest, taxes, insurance, and HOA dues). A result of 1.0 means the rent exactly covers the payment. Many DSCR lenders want 1.0 or higher, and stronger ratios often get better pricing.

New to DSCR loans? Start with our welcome guide. This post goes deeper into the math, so you can run the numbers before you make an offer.

Key Takeaways

What Is DSCR?

DSCR stands for debt service coverage ratio. It measures whether a property’s income covers its debt payment. On a residential DSCR loan, the lender cares most about this one number instead of your W-2s or tax returns.

PITIA is the full monthly housing payment:

How Do You Calculate DSCR, Step by Step?

Step 1: Find the qualifying rent

Lenders commonly use the lower of:

For a vacant property you’re buying, the appraiser’s market-rent estimate is usually the number that counts.

Step 2: Add up the full PITIA

Get real quotes, not guesses. Insurance and taxes can change a deal fast. Ask the county for the tax figure and get an insurance quote early.

Step 3: Divide

DSCR = Monthly rent ÷ Monthly PITIA

DSCR Calculation Examples

These are made-up examples to show the math, not quotes or offers.

Example 1: Single-family rental

$2,100 ÷ $1,670 = 1.26 DSCR. Rent covers the payment with about 26% to spare.

Example 2: Same house, bigger insurance bill

If insurance jumps to $390 a month, PITIA becomes $1,920.

$2,100 ÷ $1,920 = 1.09 DSCR. Still above 1.0, but in a lower tier at many lenders.

Example 3: Duplex

$2,650 ÷ $2,400 = 1.10 DSCR. On a 2-4 unit property, lenders add up the rent from all units.

What DSCR Do Lenders Want?

Every lender sets its own tiers. Here’s how they commonly break down in the market:

DSCRWhat it usually means
1.25 or higherStrong. Often the best pricing and highest leverage.
1.00 to 1.24Rent covers the payment. Widely accepted.
Below 1.00Rent doesn’t fully cover PITIA. Some lenders offer “no-ratio” or low-ratio programs, usually with a bigger down payment, more reserves, or a higher rate.

These are typical industry ranges, not Coastal Funding program terms. Your options depend on credit, down payment, reserves, property type, and the lender.

Does DSCR Use Gross Rent or NOI?

Most residential DSCR loans (1-4 units) use gross rent ÷ PITIA. They don’t subtract repairs, vacancy, or management fees.

Commercial loans on larger buildings often use net operating income (NOI) ÷ annual debt service. That’s a stricter test, since NOI subtracts operating expenses first. Always ask which formula your lender uses.

Compare that with a conventional loan. Fannie Mae’s Selling Guide generally counts only 75% of gross rent on a purchase to allow for vacancy and upkeep (Fannie Mae Selling Guide B3-3.8-02). Then that income goes into your personal debt-to-income ratio. A DSCR loan skips the personal income test. See DSCR vs. bank statement vs. conventional loans for a full side-by-side.

How Can You Raise Your DSCR?

If your ratio is a little short, try these levers:

  1. Put more down. A smaller loan means a smaller payment.
  2. Shop insurance. Even $100 a month can move you up a tier.
  3. Check for interest-only options. Some DSCR programs calculate the ratio on an interest-only payment. Availability varies.
  4. Buy down the rate. Paying points lowers the monthly payment.
  5. Raise rent to market. If the current lease is below market, a new lease can help, though many lenders still use the lower figure.
  6. Pick a property with lower HOA dues or taxes.

Does DSCR Change With Today’s Rates?

Yes. Higher rates mean higher principal and interest, which lowers DSCR on the same rent. Freddie Mac’s 30-year average was 7.32% as of October 22, 2026, down from 7.40% a week earlier (Freddie Mac PMMS). DSCR loans are priced separately from those conventional averages, but the trend matters. For more, read our Fall 2026 DSCR rates and rental market update.

Short-term rental? The math works the same, but the rent number comes from a different place. See DSCR loans for Airbnb and short-term rentals.

Run Your Numbers With Coastal Funding

Coastal Funding Corporation (NMLS 103035) offers DSCR investment-property loans nationwide. Send us the address, expected rent, and your purchase price, and we’ll help you see where your ratio lands and which programs fit.

Call (833) 457-6500 or visit www.cfcdscr.com.

About Coastal Funding Corporation

Coastal Funding Corporation (NMLS 103035) is a mortgage broker that offers DSCR investment-property loans nationwide. We compare options from multiple wholesale lenders so investors can find a DSCR program that fits the property and the plan. This article was written by our team and reviewed for accuracy as of the date shown.


Coastal Funding Corporation | NMLS 103035 | 534 S. Navy Blvd, Pensacola, FL 32507 | (833) 457-6500 | www.cfcdscr.com. Equal Housing Opportunity. This is not a commitment to lend. All loans are subject to credit approval, underwriting guidelines, and property eligibility. Rates, terms, and programs are subject to change without notice. DSCR program terms described here are typical industry ranges that vary by lender, not Coastal Funding program terms. Market figures cited are third-party data as of the dates shown and are not quotes or offers from Coastal Funding Corporation. DSCR loans are for business-purpose investment properties only, not owner-occupied homes. Verify our license at NMLS Consumer Access.

Frequently Asked Questions

What is the DSCR formula for a rental property?

DSCR equals the property’s gross monthly rent divided by its monthly PITIA: principal, interest, property taxes, insurance, and any HOA or association dues.

What is a good DSCR for a rental property loan?

Many DSCR lenders look for 1.0 or higher, and a ratio of about 1.20 to 1.25 or more often earns better pricing. Some programs accept ratios below 1.0 with tighter terms. Requirements vary by lender.

Does DSCR use gross rent or net operating income?

Most residential DSCR loans use gross monthly rent divided by PITIA. Commercial loans often use net operating income instead, so ask which method your lender uses.

Which rent number does the lender use?

Lenders commonly use the lower of the current lease or the appraiser’s market-rent estimate. For a vacant purchase, the appraiser’s market rent is often the main figure. Rules vary by lender.

How can I raise my DSCR?

You can raise DSCR by increasing rent, making a larger down payment, shopping for lower insurance, choosing an interest-only option if available, or buying down the rate.

Does Coastal Funding offer DSCR loans in every state?

Coastal Funding Corporation (NMLS 103035) offers DSCR investment-property loans nationwide. Call (833) 457-6500 to talk through your numbers.

Ready to talk? Visit www.cfcdscr.com