Most teams treat debt service coverage ratio as a snapshot. Lenders treat it as a stress test. That gap is where deals die.
A deal that qualifies on Monday can fail underwriting by Thursday. That is not an exaggeration. Multifamily insurance costs climbed from roughly $30 per unit per month before the pandemic to $65 per unit per month by late 2023, a 119 percent increase in four years, according to RealPage data. A property that clears 1.25x coverage today, the floor most lenders now require, can fall below it within a single quarter if one of those expense lines resets.
The teams getting deals through credit committees in this environment are not submitting static DSCR numbers. They are stress-testing those numbers before the lender does, and submitting packages that already show they ran the math.
Why the 1.25x Floor Is Harder to Hold Than It Looks
The shift from a 1.20x to a 1.25x minimum coverage requirement sounds minor. In practice it eliminated a significant portion of deals that would have cleared underwriting two years ago.
The pressure is coming from a different place than it used to. Historically, DSCR problems tracked with occupancy. Tenants left, income dropped, coverage fell. That dynamic still exists, but it is no longer the primary driver. A growing share of 2026 coverage failures that LoanBase is seeing across the platform are being caused by expense increases rather than income loss. The building is leased. Rents are collecting. The insurance bill came in 40 percent higher than the prior year and the coverage ratio dropped below the lender’s threshold.
That is a different problem than a vacancy issue, and it requires a different response. Cutting the loan amount does not fix an expense problem. Understanding the expense trajectory before submission does.
The Expense Spike Test
The first test, and the most important one right now, is modeling a 10 to 15 percent increase in operating expenses across insurance, labor, and utilities.
If coverage drops below 1.10x under that scenario, the deal has immediate timing risk. Either the loan amount needs to come down, the sponsor needs to fund a reserve upfront, or the package needs to go to private credit rather than a bank. Submit without running this test yourself, and the credit committee runs it for you, and the answer kills the deal without explanation.
What happens if a deal fails the expense spike test?
It depends on the degree of compression. A deal that drops to 1.18x under a stress scenario is a different conversation than one that drops to 1.05x. The former needs a modest equity contribution or a slightly lower loan amount. The latter needs a structural rethink before it goes anywhere near a lender’s inbox. Knowing which situation you are in before submission is the entire point.
The Rate Sensitivity Test
For any deal with floating rate debt or a rate cap coming due, model the debt service at the uncapped rate, or at the projected cost of replacing the cap in 2026 or 2027.
If the property cannot carry that payment, a lender is going to require additional protections that change the economics significantly. Know this before submission and you can address it directly rather than receiving it as a rejection condition three weeks into the process.
The Revenue Floor Test
The most conservative of the three tests is also the most useful for packages going to institutional lenders: model zero rent growth and a 5 to 10 percent increase in vacancy. If the deal still clears 1.25x under those assumptions, the package can be submitted with real confidence.
If it does not clear that bar, the originator knows exactly what the credit committee is going to find, and can decide how to handle it before the submission goes out rather than after the rejection comes back.
How Lenders Are Already Running These Tests
Banks are applying these tests at the committee level and declining deals that cannot pass them, often without explaining specifically which scenario failed. A pass that comes back citing “coverage concerns” is frequently a stress test failure, not a disagreement about the face value of the trailing income.
Private credit lenders are more direct. Debt funds that are active in the current market are increasingly including their own stress scenario outputs in their underwriting commentary, which means originators who submit without having run the same analysis arrive at a conversation where the lender already knows something the originator does not.
The packages that move through committee fastest are the ones where the originator has already run all three tests and built the submission around the results. Not because it impresses a lender to see the work, but because deals that cannot pass these tests do not get term sheets regardless of how well the cover memo reads.
LoanBase runs coverage sensitivity analysis across maturing loan data before leads enter the platform, which means the deals surfaced to originators have already cleared a basic threshold. The stress test still belongs in your hands before submission. But starting with deals that have already been pre-screened for coverage risk changes the baseline you are working from.
Run the test before the lender does, or the lender runs it for you and the result is a decline with a one-line explanation that does not tell you what actually failed.
