Home insurance is something most people set up once and forget. That's understandable — but it's also how people end up with a $40,000 claim and a $20,000 payout. These are the mistakes I see most often, and what you can do about them.

Insuring Your Home for Its Market Value Instead of Rebuild Cost

This is the most common and most costly mistake. Your home's market value includes the land beneath it — land that can't burn down. If you insure for market value instead of rebuild cost, you may be significantly underinsured. In Wisconsin, construction costs have climbed sharply since 2020. A home that would have cost $180/sq ft to rebuild four years ago may cost $250/sq ft today.

Ask your agent to run a replacement cost estimator — not just accept whatever number was carried over from last year's renewal.

Skipping Guaranteed or Extended Replacement Cost

Standard replacement cost pays up to your policy limit. If rebuilding costs more — due to material inflation, code upgrades, or post-disaster contractor shortages — you pay the difference. Guaranteed replacement cost coverage pays whatever it actually costs to rebuild, regardless of the limit. Extended replacement cost adds a buffer, typically 20–50% above your stated limit.

Either option provides real protection. Standard replacement cost alone often doesn't.

Not Knowing What "Actual Cash Value" Means

Some policies pay actual cash value (ACV) for personal property — meaning your depreciated belongings. A 5-year-old laptop worth $1,200 new might be valued at $300 under ACV. Replacement cost coverage for personal property pays what it costs to buy a comparable item today. The premium difference is small; the payout difference can be enormous after a major loss.

Assuming Flood Is Covered

It isn't. Standard homeowners insurance does not cover flood damage — not from river overflow, surface water, or storm surge. In Wisconsin, flooding is more common than many homeowners expect, particularly in areas near lakes, streams, and low-lying terrain. If you're in or near a flood zone, a separate flood policy through the NFIP or private flood market is essential. Even outside high-risk zones, flood coverage is surprisingly affordable and often worth carrying.

Underestimating Liability Exposure

Most standard homeowners policies include $100,000 in personal liability. If someone is seriously injured on your property, or your dog bites a neighbor, $100,000 can be exhausted quickly. Raising your liability limit to $300,000–$500,000 typically costs very little incremental premium. Adding a personal umbrella policy on top provides an additional $1M or more of protection for catastrophic events.

Letting Your Policy Renew on Autopilot Every Year

Rates change. Your home changes. Your life changes. A policy that was right three years ago may be under-priced (and under-covered) or overpriced today. It's worth having an independent agent review your policy once a year — comparing what you have to what's available in the market, and making sure your coverage limits still match your actual rebuild cost.

Not Documenting Your Belongings

If you need to file a personal property claim, insurers will ask you to list what you lost. Without documentation, that list will be incomplete and undervalued. A simple home inventory — photos, serial numbers, purchase receipts saved in cloud storage — can make a real difference in what you recover after a theft or fire. Spend an hour on it now, and don't keep it on a device inside the home.