What debt service coverage ratio do lenders require on an apartment loan?
Debt service coverage ratio is your annual net operating income divided by your annual debt service. Lenders set a floor above 1.00 on stabilised multifamily, so the property still pays the loan if income dips — the exact floor varies by lender, property type and market, and it moves with conditions. The number that matters is not the one you calculate; it is the one the lender calculates after adjusting your figures.
The calculation
DSCR = Net operating income ÷ Annual debt service
A worked example on a stabilised property:
| Item | Amount |
|---|---|
| Gross rental income | 420,000 |
| Less vacancy and credit loss | (21,000) |
| Less operating expenses | (99,000) |
| Net operating income | 300,000 |
| Annual debt service | 250,000 |
| Debt service coverage | 1.20 |
A ratio of 1.20 means the property produces 1.20 dollars of income for every 1.00 dollar of debt payment. The 0.20 is the lender's cushion.
The number you calculate is not the number that counts
This is where most borrowers are surprised, and it is the single most useful thing on this page.
A lender does not accept your net operating income. They rebuild it, and every adjustment goes one way:
| Adjustment | What the lender does |
|---|---|
| Vacancy | Applies a market vacancy factor even if the property is 100% occupied today |
| Management fee | Deducts a market management fee even if you manage it yourself for free |
| Replacement reserves | Adds a per-unit annual reserve you may not currently set aside |
| Taxes | Uses the reassessed figure after a sale, not the seller's current bill |
| Insurance | Uses a current market quote, which in several coastal markets has risen sharply |
| Non-recurring income | Removes one-off items that will not repeat |
Each line lowers the income. A property you calculated at 1.25 can arrive at the credit committee at 1.10.
The tax line catches the most people. In many jurisdictions a sale triggers a reassessment, so the buyer's tax bill is materially higher than the seller's. Underwriting on the seller's figure overstates income from day one.
Coverage is only one of three tests
A lender applies three limits at once and lends the smallest result:
- Debt service coverage — income against the payment.
- Loan to value — loan against the appraisal.
- Debt yield — income against the loan, ignoring rate and amortisation.
Coverage tends to bind when rates are high, because a higher rate raises the payment directly. Debt yield tends to bind when values run ahead of income. Our loan sizing tool runs all three on your figures and names the one that limits you.
What actually moves your ratio
Only two things are in the formula, so only two things move it:
Lower the annual debt service. Borrow less, lengthen the amortisation, or negotiate an interest-only period. A longer amortisation is the cheapest lever — it lowers the payment without changing the loan size — but it leaves a larger balloon at maturity. Our payment and balloon calculator shows that trade directly.
Raise the net operating income. Move rents to market, reduce vacancy, cut a controllable expense, or add an income line such as parking or laundry. This is slower, and it is worth more than it looks: income drives value as well as coverage, so raising it improves your loan to value at the same time.
Before you send figures to any lender
Do the lender's adjustments yourself first. Take your trailing twelve months, apply a market vacancy factor, deduct a management fee whether or not you pay one, add a replacement reserve, and use the reassessed tax figure if the property is being bought.
If the ratio still clears with room to spare, you have a fundable deal and you will not be surprised at committee. If it does not, you have found that out now, while there is still time to fix it.
Common questions
How is debt service coverage ratio calculated?
Divide the annual net operating income by the annual debt service. Net operating income is rental income less vacancy and less operating expenses, before any loan payment. Annual debt service is twelve monthly payments of principal and interest. A property with 300,000 of net operating income and 250,000 of annual debt service has a ratio of 1.20.
What is a good DSCR for a multifamily loan?
A ratio comfortably above 1.00 with room to spare. A ratio at or below 1.00 means the property does not cover its own debt, and no conventional lender will fund it as a stabilised deal. Floors vary by lender and move with market conditions, so ask each lender for their current number rather than relying on a figure published anywhere, including here.
Why is the lender's DSCR lower than the one I calculated?
Because the lender recalculates your net operating income before dividing. They apply a vacancy factor even if you are full, deduct a management fee even if you self-manage, add a per-unit replacement reserve, and use market figures for taxes and insurance rather than what you pay today. Each adjustment lowers income, and a lower income lowers the ratio.
What if my DSCR is too low?
Five routes, in order of how quickly they work. Borrow less. Ask for a longer amortisation, which lowers the annual payment. Ask about an interest-only period, which lowers it further while it lasts. Raise net operating income by moving rents to market or cutting a controllable expense. Or take the deal to a lender whose floor is lower for your property type.
Does an interest-only period improve my DSCR?
Yes, while it lasts, because the payment is smaller when no principal is being repaid. Lenders know this, so many size the loan on the amortising payment even when they grant interest-only. Ask which payment the lender uses in the test. If they size on the interest-only payment, your loan is larger and your balloon at maturity is larger too.
Last checked 2026-08-07. A rate, a spread and a lender's criteria all move within a quarter — if this page is more than a quarter old, ask us for the current number.