DSCR and LTV Calculator for Investor Loans

Investor loans are underwritten on the property, not the borrower. The two metrics that drive qualification are DSCR (debt service coverage ratio, which measures whether the property's income covers its loan payments) and LTV (loan-to-value, which measures how much of the property's value is being financed). Most investor loan programs require DSCR of at least 1.20-1.25 and LTV of at most 75-80%, with better pricing for conservative ratios on both.

This calculator runs both checks at once. Enter the property's annual NOI (use the cap rate calculator output or a pro forma), annual debt service (principal plus interest), property value, and loan amount. The tool returns DSCR, LTV, and a qualitative status flag against typical investor loan program ranges. A DSCR of 1.25 means the property generates $1.25 of NOI for every $1.00 of debt service, a 25% cushion that most lenders consider healthy.

DSCR-only loan products for non-owner-occupied properties are standard since 2020. They typically price above conventional owner-occupied rates and cap out at 75-80% LTV depending on property type and borrower profile. Compare rates from portfolio lenders, DSCR-specialist lenders, and small community banks; spreads across lenders on the same loan are often meaningful. Pair with the rental pro forma when modeling whether DSCR holds across a multi-year hold.

DSCR = NOI / annual_debt_service. NOI is the property's net operating income (effective gross income minus operating expenses, excluding mortgage payments, depreciation, and income tax). Annual debt service is the 12-month sum of principal and interest payments on the loan, not including escrowed property tax and insurance (those are in opex, already subtracted from NOI).

LTV = loan_amount / property_value × 100. Property value for underwriting purposes is either the appraised value (for refinance) or the lower of appraised value and purchase price (for purchase). Lenders pull their own appraisal and underwrite to that number.

Both metrics are point-in-time at loan origination. They do not project forward. A property with DSCR 1.25 at origination may drop to 1.10 in year 3 if rents soften or opex inflates. Stress-test the DSCR by plugging in a higher debt service (simulating a rate reset on an ARM) or a lower NOI (simulating vacancy or market decline). Conservative investors target origination DSCR of 1.40+ to absorb stress.

The tool's qualitative status bands: DSCR below 1.00 is declined (debt exceeds income); 1.00-1.19 is borderline; 1.20-1.39 is standard; 1.40+ is strong. LTV: 0-65% is conservative, 65-75% is standard, 75-80% is aggressive, above 80% is over-limit for most investor programs. These are program-level ranges, not regulatory thresholds; each lender sets its own policy.

Use this before submitting a loan application to make sure the deal is bankable as structured, or when considering a loan restructure (rate-and-term refi, cash-out refi) to check that the new debt service keeps DSCR above program minimums. For stress testing, run the calculator twice: once at expected rates and NOI, once at rates or NOI stressed down 10-15% to see if DSCR still clears. Pair with cash-on-cash return to see the investor-side return on the same deal.