Debt Service Coverage Ratio (DSCR)

DSCR: What the Market Actually Requires

DSCR is usually the first constraint a commercial loan hits, and the version that matters is the lender's, not the borrower's. Underwriters rebuild your NOI before they divide: a vacancy floor of at least 5% even if the property is full, a management fee of 3% to 5% even if you self-manage, replacement reserves, and reassessed property taxes on an acquisition. On the denominator side, many lenders calculate debt service at a stressed rate or on a fully amortizing basis even when the loan has interest-only years. A deal that pencils at 1.40x on the borrower's spreadsheet routinely underwrites at 1.20x inside the credit memo.

Minimums cluster by capital source. Banks typically want 1.25x on stabilized multifamily and commercial, moving to 1.30x or higher for hospitality and specialty assets. Agency lenders center on 1.25x for market-rate multifamily, with certain affordable programs stretching to 1.20x. CMBS generally underwrites 1.25x to 1.35x depending on property type, and life insurance companies, because they lend at lower leverage, often show effective coverage of 1.35x or better. Bridge lenders and debt funds are the exception: they will fund value-add deals with going-in coverage below 1.0x, structure an interest reserve to carry the gap, and size to the stabilized DSCR instead.

The negotiation levers all live in the ratio's parts. Longer amortization, 30 years instead of 25, lowers annual debt service and lifts DSCR; interest-only periods lift it further, though many lenders size on the amortizing payment anyway; and better income documentation defends the NOI against haircuts. The most common borrower mistakes are underwriting pro-forma rents as in-place income, forgetting the post-sale tax reassessment, and assuming the lender will use the actual note rate rather than a stressed sizing rate. Ask every lender how they calculate the sizing DSCR before comparing term sheets, because two quotes at the same stated minimum can produce very different proceeds.

Why It Matters for Your Loan

DSCR is a direct throttle on loan proceeds: if underwritten coverage misses the minimum, the loan shrinks until it fits, regardless of LTV or the appraisal. It also shapes structure, since interest-only periods and longer amortization exist largely to solve DSCR math. Knowing each lender's minimum, sizing rate, and underwriting adjustments before going to market is the difference between a full-proceeds close and a retrade. Commercial Lending Solutions sizes every file against DSCR, debt yield, and LTV across 1,000+ lenders and targets the capital sources whose coverage math treats your deal most favorably.