The DSCR formula
The debt-service coverage ratio is calculated by dividing a property’s income by its debt obligations. In its most common form for rental property financing: DSCR = rental income ÷ debt payments, where debt payments typically include principal, interest, taxes, insurance, and any HOA or association dues (often abbreviated PITIA). The result is a ratio: if a property brings in $2,400 a month and its total debt payment is $2,000, the DSCR is 1.2.
What counts as income
For DSCR purposes, the income is generally the property’s rental income — either the actual rent (for a property already leased) or the market rent as determined by an appraisal or rent schedule (for a new purchase). Lenders have their own rules about which figure they use and how they document it. The point is that this is the property’s income, not your personal income, which is what makes DSCR loans distinctive.
What counts as debt
The debt side of the ratio is the property’s total housing payment: principal and interest on the mortgage, property taxes, insurance, and any HOA or condo dues. Getting an accurate picture of these costs matters, since underestimating them inflates the ratio. Our DSCR calculator can help you estimate the ratio for a property using figures you provide.
What ratio lenders want
Lenders generally look for a DSCR at or above a certain threshold, meaning the property’s income covers — or more than covers — its debt. A higher ratio indicates stronger cash flow and is viewed more favorably; a ratio below the threshold may still be financeable under some programs but can affect terms. The exact requirement varies by lender and program. As a Florida broker (NMLS #1967971), we can help you understand how a specific property’s ratio would be viewed.
This article is for general educational purposes and is not financial, legal, or tax advice, nor a commitment to lend or an offer of any specific rate or term. Consult a licensed professional about your situation. MortgageQuote.com · NMLS #1967971. Equal Housing Opportunity.
Frequently asked questions
How do you calculate DSCR?
What is included in the debt for DSCR?
What income is used for DSCR?
What DSCR do lenders want to see?
How do I calculate DSCR?
Divide the property’s income by its debt obligation — income above the payment gives a ratio over 1.0. Our DSCR calculator does this instantly, and a broker can explain how lenders use the result.
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