What Happens If Your STR's Actual Revenue Falls Short of the Projection?
Nothing happens to your loan terms directly — DSCR is calculated once, at origination, using a projection. It isn't re-tested monthly against your actual bookings. The real consequence isn't a loan violation; it's that you personally have to cover the payment gap out of pocket if actual cash flow comes in lower than the number that qualified you.
NightYield Editorial
STR-DSCR research & underwriting desk
Published 2026-07-21
The projection is a qualifying test, not an ongoing promise
DSCR underwriting happens at one point in time: origination. The lender computes the ratio using a projected rent or comp-based revenue figure, decides whether it clears their minimum threshold, and closes the loan. After that, they're generally not pulling your Airbnb dashboard every month to re-check the ratio — the mortgage payment obligation is fixed regardless of what the property actually earns going forward.
That means an underperforming STR doesn't trigger an automatic default, a call provision, or a loan modification demand just because the revenue came in low. What it does trigger is a very ordinary problem: you owe the same monthly payment whether the property earned $3,000 or $1,200 that month, and the difference comes out of your own reserves.
Where a shortfall actually becomes a problem
- If the shortfall is severe and sustained enough that you can't make the payment at all, you're in ordinary mortgage default territory — same consequence as missing any mortgage payment, unrelated to how the loan was originally underwritten.
- A weak first year of actual performance can hurt you later if you try to refinance or sell, since a future lender or buyer's lender will look at actual Schedule E history rather than the original projection.
- Persistent underperformance is also just useful information — it may mean the original comp analysis was too optimistic, the pricing strategy needs work, or the market shifted, worth digging into rather than just absorbing the loss quietly.
Key takeaways
- DSCR is calculated once at origination — it isn't a monthly test the lender re-runs against your actual bookings.
- An underperforming STR doesn't itself trigger a loan violation — the payment obligation is fixed either way.
- The real risk is a personal cash-flow gap, and eventually, a worse position when you try to refinance or sell using actual (rather than projected) numbers.