What happens if you don't tell your home insurer everything?
When you buy home insurance, you promise that everything you told the insurer is accurate — and that you will report material changes. Leaving something out is called material misrepresentation, and it can cost you far more than the premium you saved.
What counts as material
Anything that meaningfully raises an insurer's risk. Common omissions that cause real trouble:
- Wood stoves and fireplaces — a leading cause of house fires, and insurers almost always want them inspected and declared
- Renting out a basement suite or the whole home — changes occupancy and liability, and short-term rentals are a different product entirely
- Trampolines, pools, and certain dog breeds — classic liability exposures with specific safety requirements
- Home businesses — inventory, visiting clients, and equipment usually need commercial coverage
- Renovations or an empty home — a major reno or a property vacant for weeks changes the risk profile significantly
What can happen
If the undisclosed detail relates to a claim, an insurer can deny the claim outright. In serious cases it can void the policy from the start — meaning you have been paying for coverage that never legally existed — and future insurers will ask about cancellations, making new coverage expensive and difficult to place.
How to disclose properly
- Answer application questions fully and honestly, even when unsure
- Call your insurer or broker when circumstances change — do not wait for renewal
- Get confirmation of changes in writing, not just a verbal note
- If you inherited an inaccurate application, correct it now; insurers generally forgive honest corrections but punish discovered concealment
Tip: When in doubt, disclose. Worst case is a slightly higher premium; the alternative can be a six-figure loss with no coverage at all.
The bottom line
Insurance is a contract built on good faith. Telling your insurer everything costs a little; telling them nothing can cost you the house.
This article is for informational purposes only and does not constitute financial advice. Rates and product details change frequently — always compare current offers before making a decision.
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