Why Property Insurance Costs Are Quietly Killing More Deals Than Interest Rates

Everyone blames interest rates when a deal falls apart.

Rates get the headline. Rates get the blame in every article about why deals are harder to close.

Insurance is the one quietly doing more damage, and almost nobody's writing about it.

The Short Answer

Insurance premiums have grown so fast, and become so central to DSCR math, that a single outdated coverage number can kill a deal that would otherwise sail through underwriting. Rates get watched. Insurance gets ignored, until it's the reason the deal dies.

The Numbers Nobody's Tracking Closely Enough

Average commercial property insurance premiums grew more than 15% a year between 2019 and 2024, spiking nearly 30% in 2023 alone. Insurance costs have roughly doubled as a share of rental income and operating expenses over the past five years. What used to be a line item nobody thought twice about is now one of the biggest swing factors in whether a deal cash-flows at all.

Why Insurance Hits DSCR Harder Than People Realize

DSCR is rent divided by debt payments, taxes, insurance, and association dues combined. Every dollar of premium increase comes straight out of that ratio. There's no absorbing it elsewhere.

Do the Math

A gap between what a property is insured for and what it actually costs to rebuild can turn a 1.30x DSCR into a 1.10x DSCR in about an hour, once a lender's underwriting team catches it. That's not a rounding error. That's the difference between a deal that clears and a deal that gets rejected outright.

Replacement costs have risen roughly 40% since 2020. Most properties haven't updated their coverage limits to match. That gap sits quietly on the balance sheet until a lender finds it.

Why This Isn't Just a Coastal Problem

Hurricane zones get the headlines, but the data shows rising premiums aren't confined to a handful of coastal markets. Interior states are seeing some of the sharpest increases too, driven by hail, severe storms, and construction cost inflation rather than hurricanes. A deal in Oklahoma or Kansas can face a heavier insurance burden than one in parts of the traditional hurricane coast, depending on the year and the peril mix.

Why the Spread Between Markets Is Growing, Not Shrinking

Premiums rose an average of 14% across the 25 most expensive states recently, versus just 5% across the 25 least expensive. That spread matters more than the national average. A sponsor pricing a deal off a national insurance assumption is pricing it wrong in almost every specific market, and the gap between "close enough" and "actually accurate" is exactly where deals stall before closing.

Recap

• Commercial property insurance premiums have grown faster than almost any other line item in a deal's operating budget.
• Insurance sits directly inside the DSCR calculation, so a stale premium number can flip a deal from approved to rejected.
• Replacement cost gaps, not just headline rate increases, are the hidden risk most deal packages miss.
• The spread between the cheapest and most expensive insurance markets is widening, which means national averages are increasingly useless for underwriting a specific property.

Final Word

Interest rates get watched because they're visible and easy to headline.

Insurance kills deals quietly, one stale premium number at a time.

Check the current binder before you check the rate sheet.

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