STR Insurance Is Higher Than You Think — and It Changes Your DSCR
Short-term-rental insurance commonly runs well above a comparable landlord policy because it bundles commercial liability and guest exposure. That premium sits inside the “I” of PITIA, and since DSCR is revenue ÷ PITIA, a higher premium directly lowers your ratio. On a marginal deal, the insurance line alone can be the difference between clearing the floor and missing it.
NightYield Editorial
STR-DSCR research & underwriting desk
Published 2026-06-09 · Updated 2026-06-15
Why STR insurance costs more than a landlord policy
A standard landlord (DP-3) policy assumes a tenant on a lease. A short-term rental is closer to a small hospitality business: a rotating cast of strangers, frequent turnover, and far higher liability exposure. So an STR policy bundles things a landlord policy doesn’t — and you pay for the difference.
- Commercial liability for guest injuries, not just tenant claims.
- Higher contents and amenity coverage — you furnish the unit; hot tubs, fire pits, and decks raise the risk profile.
- Business-income / lost-revenue coverage when a covered event takes the property offline.
- Guest-caused damage and liability beyond what platform host guarantees actually cover.
The result is a premium that frequently runs materially higher than the landlord policy for the same building — sometimes a modest uplift, sometimes close to double in higher-risk or coastal markets. That matters because of where the premium lands in the math.
Insurance lives inside PITIA — so it lives inside your DSCR
DSCR is gross revenue ÷ PITIA, and the second “I” in PITIA is insurance. The lender folds your annual premium into the monthly payment alongside principal, interest, taxes, and HOA. So a higher premium raises PITIA, and a higher PITIA — with revenue unchanged — lowers your DSCR. There’s no way to route around it: it’s baked into the qualifying ratio.
This is why insurance is a feasibility input, not a closing-day afterthought. A premium you discover late doesn’t just dent cash flow — it can move the DSCR the lender qualifies you on, after you’re already attached to the deal.
Watch a premium jump move the ratio
Take a property grossing $48,000/year ($4,000/month) with non-insurance PITIA components (P+I + taxes + HOA) of $3,000/month. Hold everything constant and change only the insurance line. Figures are illustrative — the mechanism is exact.
| Annual premium | Monthly insurance | Total PITIA | DSCR ($4,000 ÷ PITIA) |
|---|---|---|---|
| $1,500 (landlord-style) | $125 | $3,125 | 1.28× |
| $2,400 (typical STR) | $200 | $3,200 | 1.25× |
| $3,600 (coastal/high-risk) | $300 | $3,300 | 1.21× |
| $5,400 (worst case) | $450 | $3,450 | 1.16× |
Same building, same revenue — the DSCR slides from 1.28× to 1.16× purely on insurance. If your target lender’s floor is 1.20×, the coastal quote ($3,600) still clears but the worst-case quote ($5,400) fails the file outright. That’s a deal killed by a line item most buyers estimate with a shrug.
Landlord policy vs STR policy: what you’re actually buying
Part of why the premium surprises buyers is that they price the wrong policy. A landlord (DP-3) quote isn’t the cost of insuring a short-term rental — it’s the cost of insuring a long-term one, and the lender will require coverage that matches how the property is actually used. Here’s where the two diverge:
| Coverage element | Landlord (DP-3) | STR policy |
|---|---|---|
| Occupant assumption | One tenant on a lease | Rotating short-stay guests |
| Liability | Tenant-focused | Commercial guest liability |
| Contents / furnishings | Minimal — tenant furnishes | Full — you furnish the unit |
| Lost rental income | Often limited | Business-income coverage included |
| Relative premium | Baseline | Materially higher |
Quoting the right policy upfront is what keeps your DSCR honest. A file built on a landlord premium can look like it clears the floor in your spreadsheet, then slip underneath the moment the lender plugs in the real STR number. Treat the STR quote — not the landlord estimate — as your true insurance line.
What to do about it
You can’t remove insurance from PITIA, but you can keep it from sinking the ratio. The move is to treat it as a hard feasibility input and shop it like one.
- Get a real STR quote before you write the offer — not a landlord-policy estimate. The premium belongs in your DSCR math from day one.
- Shop multiple carriers, including STR-specialist insurers; premiums for the same property vary widely between a standard carrier and a specialist.
- Right-size coverage to the property — high-risk amenities and coastal exposure drive cost, so confirm you’re not over- or under-insured for your actual setup.
- Re-run the DSCR on the real number to confirm you still clear the lender’s floor with the true premium in PITIA.
- If it’s tight, pull the other levers — a bit more down payment shrinks PITIA and can absorb a heavy premium.
If a high premium still leaves you under the floor, the property may pencil better as a mid-term rental, where insurance and operating risk are lower. And remember the city’s rules interact with all of this — a night cap haircuts revenue on the numerator while insurance pressures the denominator, squeezing the ratio from both ends.
Key takeaways
- STR insurance commonly runs materially higher than a comparable landlord policy because it bundles commercial liability and guest exposure.
- Insurance is the “I” in PITIA, so a higher premium directly raises the payment and lowers your DSCR — revenue unchanged.
- In the worked example, the ratio slid from 1.28× to 1.16× on the insurance line alone, enough to fail a 1.20× floor.
- Get a real STR quote before you offer, shop specialist carriers, and re-run the DSCR on the true premium.
- If the premium leaves you under the floor, more down payment — or a mid-term-rental strategy — can rescue the ratio.