DSCR Calculator
Enter your property's annual Net Operating Income and annual debt service (mortgage payments) to calculate the Debt Service Coverage Ratio. DSCR is the primary metric lenders use to determine if a rental property generates enough income to support a loan — most require 1.25 or higher.
Results are estimates for informational purposes only. Not financial advice. Full disclaimer.
What is DSCR?
The Debt Service Coverage Ratio (DSCR) measures a property's ability to pay its mortgage from rental income alone. It is calculated by dividing the Net Operating Income (NOI) by the total annual debt service (principal + interest payments). A DSCR of 1.33 means the property generates 33% more income than needed to cover the mortgage — providing a cushion for unexpected expenses or vacancy. DSCR is the single most important metric for investment property lending. Unlike conventional mortgages that qualify based on the borrower's personal income (W-2, tax returns, DTI ratio), DSCR loans qualify based on the property's income. This makes them especially popular with self-employed investors, those with complex tax returns, and investors scaling beyond 5-10 properties where conventional loan limits apply. Most DSCR lenders require a minimum ratio of 1.25, meaning the property must generate 25% more NOI than the annual mortgage payment. Some lenders offer loans at DSCR of 1.0 (break-even) or even 0.75 for strong borrowers in appreciating markets, but these carry higher interest rates and larger down payment requirements. A DSCR of 1.5+ qualifies for the best rates and terms. DSCR loans have become the dominant financing product for rental property investors in 2024-2026. They offer several advantages over conventional loans: no personal income documentation required, no limit on the number of properties (conventional loans cap at 10), faster closing (15-21 days vs 30-45), and the ability to close in an LLC or entity name. The trade-off is slightly higher interest rates (typically 0.5-1.5% above conventional) and larger down payments (20-25% minimum). The DSCR formula uses NOI, not gross rent. This is important because operating expenses (taxes, insurance, maintenance, management, vacancy) significantly reduce the income available to service debt. A property with $24,000 gross rent and $8,000 in expenses has $16,000 NOI — use $16,000, not $24,000, when calculating DSCR.
How to Calculate
- Calculate or enter your annual Net Operating Income (use the NOI Calculator if needed)
- Enter your annual debt service (monthly mortgage payment × 12, including principal + interest)
- Review the DSCR ratio, surplus, and loan qualification status
- If DSCR is below 1.25, consider a larger down payment (reduces mortgage), higher rent, or lower expenses
- For DSCR loan applications, confirm the lender's minimum DSCR requirement — it varies by lender
Formula
DSCR = Annual Net Operating Income ÷ Annual Debt Service Annual Surplus = Annual NOI − Annual Debt Service Monthly NOI = Annual NOI ÷ 12 Monthly Debt Service = Annual Debt Service ÷ 12 DSCR benchmarks: < 1.0 (property loses money — does not qualify), 1.0-1.24 (break-even to marginal — limited loan options), 1.25+ (qualifies for most DSCR lenders), 1.5+ (strong — best rates and terms). Important: Use NOI, not gross rent. NOI = Gross Rent − Vacancy Allowance − Operating Expenses. Operating expenses include taxes, insurance, maintenance, management, and reserves. They do NOT include the mortgage payment itself.
Example Calculation
For a property with $16,000 annual NOI and $12,000 annual debt service: DSCR = $16,000 ÷ $12,000 = 1.33 Monthly NOI = $16,000 ÷ 12 = $1,333.33 Monthly Debt Service = $12,000 ÷ 12 = $1,000.00 Annual Surplus = $16,000 − $12,000 = $4,000 A DSCR of 1.33 exceeds the 1.25 minimum most lenders require. The $4,000 annual surplus ($333/month) provides a buffer for unexpected expenses. This property qualifies for a DSCR loan at competitive rates.
Frequently Asked Questions
What is a good DSCR for a rental property?
Most lenders require a minimum DSCR of 1.25. A DSCR of 1.25-1.50 is considered solid and qualifies for standard DSCR loan terms. Above 1.50 is strong and may qualify for lower rates or higher leverage. Below 1.0 means the property does not generate enough income to cover its mortgage — this is a red flag unless you have a clear plan to increase rents or reduce expenses.
How is a DSCR loan different from a conventional mortgage?
Conventional mortgages qualify based on your personal income (W-2s, tax returns, DTI ratio). DSCR loans qualify based on the property's income — your personal income is not considered. This makes DSCR loans ideal for self-employed investors, those with complex tax returns, or investors who already have 5-10 conventional mortgages. Trade-offs: slightly higher rates (0.5-1.5% above conventional) and larger down payments (20-25%).
What counts as debt service?
Annual debt service is your total annual mortgage payment: principal + interest. If your monthly mortgage payment is $1,000 (P&I), your annual debt service is $12,000. Some lenders also include property tax and insurance escrow in debt service, which reduces the DSCR. Clarify with your lender which definition they use.
Can I get a DSCR loan with a ratio below 1.0?
Some lenders offer 'no-ratio' or sub-1.0 DSCR loans, typically at 0.75 minimum. These loans have higher interest rates (often 1-2% above standard DSCR), require larger down payments (25-30%), and may have lower loan-to-value limits. They are used when investors expect rents to increase significantly or when the property is being repositioned.
How do I increase my DSCR?
Increase NOI (higher rents, lower expenses, add income streams) or decrease debt service (larger down payment, lower interest rate through rate buydown, longer amortization term). The fastest lever is usually a larger down payment — putting 25% down instead of 20% can significantly improve DSCR by reducing the mortgage payment.
Do DSCR lenders check my personal credit?
Yes, most DSCR lenders require a minimum credit score (typically 660-700). They do not verify income or use DTI ratios, but credit score affects the interest rate offered. Higher credit scores (720+) receive better pricing. Some lenders also require 6-12 months of cash reserves after closing.