DSCR Calculator
Evaluate whether property income supports debt obligations.
Property Assumptions
What is DSCR?
DSCR — debt service coverage ratio — tells you whether a property actually pays for itself.
It measures whether a property generates enough income to support its debt obligations while maintaining a reasonable financial cushion. It is one of the most important numbers a lender looks at when evaluating an investment property loan, and one of the most useful numbers an investor can run before making an offer.
The formula is straightforward:
EGI − Operating Expenses = Net Operating Income (NOI)
DSCR = NOI ÷ Annual Debt Service
A DSCR of 1.00 means the property income exactly covers the annual loan payments — no cushion, no shortfall. Above 1.00 means the property earns more than it owes. Below 1.00 means it does not cover its own debt, which is a problem for both the investor and the lender.
Most lenders want to see a DSCR of at least 1.20 to 1.25, though that varies by lender, loan type, and property specifics. A 1.25 DSCR means the property generates $1.25 of net operating income for every $1.00 of annual debt service. That extra margin helps absorb vacancy, repairs, expense increases, or periods of weaker cash flow without immediately putting the loan coverage at risk.
Important note
Lenders calculate DSCR their own way. Some include reserves. Some treat management fees differently. Some use actual leases, others use market rents. This calculator gives you a solid planning estimate — use it to screen deals and stress test assumptions, not as a substitute for lender underwriting.
How to use this DSCR calculator
Start by selecting what you want to solve for using the dropdown at the top of the calculator. The form will adjust to show only the fields you need.
Find DSCR — Enter all income, expense, and loan payment fields. The calculator returns your estimated debt service coverage ratio and shows how it compares to your target.
Find Max Payment — Enter income and expenses. The calculator determines the maximum monthly loan payment the property's NOI can support at your target DSCR. Use this to understand your financing ceiling before speaking with a lender.
Find Minimum Rent — Enter your expenses and loan payment. The calculator works backward to determine the minimum rent required to meet your target DSCR. This is useful for evaluating value-add opportunities where rent is the key variable.
Find Max Loan & Price — Enter income, expenses, interest rate, and loan term, then choose purchase or refinance. Purchase mode estimates the maximum loan amount and purchase price supported at your target DSCR. Refinance mode estimates the maximum refinance loan and available cash-out after payoff and costs.
What is a good DSCR?
It depends on the lender and the property type, but here are general benchmarks most investors work with:
Below 1.00 — The property does not cover its debt. Most lenders will not finance at this level without significant compensating factors.
1.00 to 1.19 — Technically covering debt service but with very little cushion. Most lenders consider this marginal. One vacancy or unexpected repair can push it negative.
1.20 to 1.24 — Acceptable to many lenders, particularly for stabilized single-family rentals and smaller multifamily properties.
1.25 and above — The standard target for most investment property lenders. Provides a meaningful buffer and generally qualifies for better loan terms.
1.35 and above — Considered strong. At this level, most lenders are comfortable, and investors have real room to absorb changes in the market.
Why lenders care about DSCR
Lenders use DSCR because it helps evaluate whether a property's income appears capable of supporting the proposed loan payment under real operating conditions.
A property may show a strong cap rate and still struggle to qualify for financing if the income does not adequately support the debt service. Interest rates, amortization, taxes, insurance, and vacancy assumptions all affect the outcome.
A stronger DSCR is generally beneficial for both the lender and the investor. The lender has a better chance of a performing loan, while the investor has a larger financial cushion to absorb vacancies, repairs, expense increases, or weaker market conditions without immediately creating cash flow pressure.
Why the accuracy of your assumptions is important
DSCR is only as reliable as the numbers going into it. The math is simple — the judgment is in the inputs.
Less experienced operators tend to underestimate expenses and the time required to stabilize and tenant a property, particularly during the early stages of ownership. Repair and maintenance costs often run higher than projected, while management fees, insurance increases, property tax adjustments, and carrying costs add up faster than many underwriting models assume.
Run your numbers conservatively. If the deal still works at a 10% vacancy rate and expenses 15% higher than your estimate, it is worth a closer look. If it only works under perfect conditions, then you need to be very sure those conditions will actually hold.
How to improve a borderline DSCR
If your DSCR comes in below your target, you have a few levers to work with.
Increasing rent improves NOI directly and can have a meaningful impact on DSCR. Reducing the purchase price lowers your loan amount and therefore your debt service. A larger down payment reduces the loan balance and monthly payment.
Reducing operating expenses — particularly management and repair reserves — can improve NOI, but should be approached carefully. Cutting too close leaves no room for things that inevitably come up.
Sometimes a deal simply does not work at the asking price. DSCR makes that clear quickly, which is exactly what it is designed to do.
Frequently asked questions
Does DSCR apply to short-term rentals?
Yes, but lenders treat short-term rental income differently. Many will only count a portion of projected STR income — sometimes 50% to 75% — since it is less predictable than long-term lease income. If you are evaluating an STR, use a conservative income figure.
What expenses should I include?
Include all recurring operating expenses: property taxes, insurance, repairs and maintenance, property management fees, HOA dues if applicable, and any other costs paid out of property income. Do not include your mortgage payment in operating expenses — that belongs on the debt service side.
Is DSCR the same as cash-on-cash return?
No. DSCR measures income relative to debt payments. Cash-on-cash return measures annual cash flow relative to the cash you invested. They answer different questions. A property can have a strong DSCR and still produce a modest cash-on-cash return depending on how much cash you put down.
Can I use this calculator for residential and commercial income property?
Yes. The same DSCR formula and theory applies to all income real estate. Inputs and lender requirements vary by property type — retail, office, industrial, and multifamily all have different norms — but the underlying math is the same.
What if I am paying cash with no loan?
With no debt service, DSCR is technically infinite — there are no loan payments to cover. In that case, cap rate and cash-on-cash return are more useful metrics for evaluating the deal.