A DSCR loan calculator divides a rental property’s monthly rent by its full monthly payment (PITIA) to find the debt service coverage ratio that investor lenders use. Formula: PITIA=P&I+tax+ins+HOA; DSCR=rent/PITIA; max loan from rent/target after expense haircut. Rent of $3,000 against a PITIA of $2,647.64 gives a DSCR of 1.13.
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How to use the DSCR loan calculator
- Enter the monthly rent.
- Enter the loan amount, rate and term, and choose amortizing or interest-only.
- Enter monthly property taxes, insurance and HOA dues.
- Enter the lender’s target DSCR and read your DSCR and the maximum loan.
What formula does the DSCR loan calculator use?
DSCR = monthly rent ÷ monthly PITIA, where PITIA is principal and interest plus property taxes, insurance and HOA dues.
- DSCR of 1.00 means rent exactly covers the payment.
- Above 1.00, rent covers it with room to spare; below 1.00, you would pay part of it yourself.
- Maximum loan = the loan whose PITIA equals rent ÷ target DSCR.
DSCR loan calculator worked example
| Item | Amount |
|---|---|
| Monthly rent | $3,000 |
| Loan | $300,000 at 7.5%, 30 years |
| Principal and interest | $2,097.64 |
| Taxes + insurance | $550 |
| PITIA | $2,647.64 |
| DSCR | 1.13 |
At a 1.25 target, PITIA can be at most $3,000 ÷ 1.25 = $2,400, leaving $1,850 for principal and interest, which supports a loan of about $264,583. An interest-only payment of $1,875 would lift the DSCR to 1.24.
What DSCR lenders look for
DSCR loans are investor loans underwritten mainly on the property’s rent rather than your personal income. Lenders set their own minimums; many look for a DSCR of about 1.0 to 1.25, along with a down payment, cash reserves and a credit score check. Rent is usually taken from a lease or an appraiser’s market rent estimate. Because these loans are not consumer mortgages, rates and fees are typically higher than for a primary-home mortgage, and prepayment penalties are common. Read the note and ask for every fee in writing.
Ways to improve DSCR
- A larger down payment lowers the loan and the payment.
- A lower rate or longer amortization lowers principal and interest.
- Shopping insurance and appealing a high tax assessment cut the T and I in PITIA.
- Interest-only periods raise DSCR now but not the long-term cost.
DSCR is not cash flow
A DSCR above 1.0 does not mean the property makes money. PITIA leaves out vacancy, repairs, capital expenses and management. A property with a DSCR of 1.13 can lose money once those are counted, so run a full cash-flow estimate as well.
Choosing the rent figure
The rent you enter drives everything. For a property with a tenant, lenders usually use the lease rent; for a vacant or newly bought home, they rely on the appraiser’s market rent survey, which compares similar rentals nearby. Short-term rental income may be treated differently or haircut. If you are unsure, test a lower rent: at $2,700 instead of $3,000, the DSCR in the example falls to about 1.02, close to the minimum many lenders accept. Testing a range shows how much room for error the deal has before the loan stops qualifying.
Estimates for education only, not financial advice. Your lender’s figures are final.
Working back to a maximum loan
The DSCR loan calculator can also tell you how much you can borrow. Start with the net operating income and the lender’s minimum ratio. If NOI is $18,660 a year and the lender wants 1.25, the most the property can support is $18,660 ÷ 1.25 = $14,928 a year of debt service, or $1,244 a month. At 7.5% over 30 years, that payment covers a loan of about $178,000.
Many lenders apply the DSCR loan calculator logic with a simpler test: monthly market rent divided by the full payment including taxes, insurance and any HOA dues (PITIA). Under that method, $2,400 of rent against a $1,900 PITIA payment gives a ratio of about 1.26. Ask the lender which version it uses, then enter matching figures in the DSCR loan calculator so your estimate lines up with the underwriter’s.
Related converters and calculators
Related calculators:
- Rental property calculator: cash flow
- Mortgage calculator: payment
- ROI calculator: returns
- 1031 exchange calculator: defer gains
Sources
CFPB: Buying a house; IRS Publication 527: Residential Rental Property.
Questions about this calculator
What is a good DSCR?
Many lenders look for at least 1.0 to 1.25; higher ratios usually get better terms.
Does DSCR use PITIA or just principal and interest?
Lenders generally use full PITIA, including taxes, insurance and HOA dues.
Can I get a DSCR loan below 1.0?
Some lenders allow it with more down payment or reserves, usually at a higher rate.
Does a DSCR loan check my income?
DSCR loans focus on the property’s rent, though lenders still check credit and reserves.
Is DSCR the same as cash flow?
No. It ignores vacancy, repairs and management.
Check the assumptions and units before relying on a result. Financial, tax and health estimates do not replace advice for your individual circumstances.
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