The debt service coverage ratio (DSCR) is the number a DSCR lender cares about most. The good news is that it is simple arithmetic. Here is how to do it yourself before you ever make an offer.
The formula
PITIA = principal + interest + property taxes + insurance + HOA dues (if any)
Step by step
- Find the monthly rent. Use the current lease if the property is rented, or the market rent estimate if it is vacant or being purchased.
- Estimate the monthly payment. Principal and interest depend on the loan amount, rate and term. Add monthly property taxes, insurance and HOA dues.
- Divide. Rent divided by total payment is your DSCR.
Example 1: a rental that clears 1.0
A single-family rental rents for $2,500 a month. The loan payment (principal and interest) is $1,600, taxes are $250, insurance is $120 and there is no HOA. PITIA is $1,970.
The rent covers the payment with room to spare, which most DSCR programs like to see.
Example 2: a rental that falls short
Another property rents for $1,800, but the payment including taxes, insurance and a $90 HOA is $2,050.
The rent does not cover the payment. Some programs still work below 1.0 with more money down or different pricing, but options narrow.
What counts as a “good” DSCR?
There is no single answer, since it varies by program. As a rule of thumb, 1.0 is break-even on the payment, and ratios comfortably above 1.0 tend to unlock better pricing and leverage. A ratio well above 1.0 also means more cushion for vacancies and repairs.
Common mistakes
- Leaving out taxes, insurance or HOA. The lender counts them, so you should too. In high-tax or high-insurance areas they can change the answer.
- Using hopeful rent. Lenders typically rely on a lease or an appraiser’s market rent, not the top of what you think you might get.
- Forgetting that the rate changes the payment. A different rate or loan amount moves the ratio, so check more than one scenario.
Skip the math
Our DSCR calculator does it for you, and the estimator shows a ballpark rate range and loan amount for your property.