What DSCR actually measures
DSCR (debt service coverage ratio) is the property's net operating income divided by the annual debt service on the loan. A DSCR of 1.25x means the property generates 25% more cash flow than is required to service the debt. Lenders use DSCR as a margin of safety: the higher the ratio, the more cushion the asset has against rent declines, vacancy, or expense increases.
Different asset classes carry different DSCR requirements. Multifamily typically requires 1.20x-1.25x. Industrial and office typically require 1.25x-1.35x. Hospitality and self-storage typically require 1.40x-1.50x. The riskier the asset class, the higher the required DSCR.
How lenders calculate NOI for DSCR
Lenders don't use the sponsor's pro forma NOI, they use their own underwritten NOI, which is typically lower. Underwritten NOI applies a vacancy assumption (typically 5-7% for multifamily, higher for other product types), trims gain-to-lease and other speculative income, applies a market management fee, and uses lender-required reserves for repairs and replacement.
The gap between sponsor pro forma NOI and lender underwritten NOI can easily be 10-15%. Sponsors who model their refinance based on pro forma NOI often find their actual proceeds materially lower than expected. Modeling against lender underwriting from day one is what produces accurate proceeds estimates.
DSCR vs debt yield: two sizing constraints
DSCR is one of two primary sizing constraints on permanent commercial debt. The other is debt yield (NOI divided by loan amount), which lenders use as a leverage-independent measure of the loan's risk. Debt yield requirements typically range from 7.5% to 10% depending on asset class.
The binding constraint depends on the interest rate environment. In low-rate environments, DSCR is usually binding (because debt service is low). In higher-rate environments, debt yield is often binding (because lenders won't lever up regardless of how well the property covers debt service). Sponsors should size against both.
Frequently asked questions
- What DSCR do lenders require on multifamily loans?
- Most multifamily permanent lenders require a minimum DSCR of 1.20x to 1.25x at underwriting. Agency lenders (Fannie Mae, Freddie Mac) typically size to 1.25x. HUD typically sizes to 1.176x (a 1/0.85 inverse of the 85% LTV cap).
- Can DSCR be improved without raising NOI?
- Yes. Reducing the loan amount, extending the amortization, or accepting a lower coupon all reduce debt service and improve DSCR. Most sponsors prefer to maximize proceeds, so DSCR is improved indirectly by increasing NOI through rent growth, expense control, or value-add execution.
- What's a good DSCR for a commercial loan?
- A DSCR above the lender's minimum (typically 1.20x-1.40x depending on asset class) qualifies for the loan. A DSCR significantly above the minimum (1.40x+) creates flexibility, it makes the loan refinanceable even if rates rise or NOI declines modestly.
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