Property Owners: What Co-Insurance Means and Why It Matters

If you own commercial property in Oklahoma—whether it’s an office building, warehouse, or rental you may have heard the term “co-insurance clause.” It’s one of the most misunderstood parts of a property policy, but also one of the most important.

Co-insurance requires you to insure your property to a certain percentage of its replacement cost commonly 80%, 90%, or 100%. If you don’t, your insurance company may penalize your claim payout, even for partial losses.

A real-world example: Let’s say your building is worth $1,000,000. You only insure it for $500,000 (50% of its value). A fire damages $100,000 of the property. You might think you’d get a $100,000 payout but because you didn’t meet the 80% co-insurance requirement, the insurance company only pays part of the claim based on the percentage you are underinsured, leaving you with a big out-of-pocket bill.

Why it happens:

  • Property owners often insure for market value instead of replacement cost.
  • Construction costs (especially materials and labor) have risen sharply, meaning many properties are underinsured without owners realizing it.
  • Some owners underinsure to save money on premiums, not realizing the risk.

How to protect yourself:

  1. Get regular property valuations. Costs change—your coverage should too.
  2. Work with your agent. We can help calculate true replacement cost.
  3. Don’t skimp to save short term. Saving on premiums today can cost tens of thousands tomorrow.

Co-insurance clauses aren’t meant to trick you—they’re designed to ensure everyone insures their property fairly. But if you underinsure, you’ll pay the price at claim time.

Next Step: Let Oklahoma Insurance Group review your property policy today to make sure you’re covered to value.


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