5 Common Car Insurance Mistakes You're Probably Making

1. Letting your usage classification go stale

If you bought a policy when you were commuting 40 miles a day and you now work from home three days a week, you are paying for miles you no longer drive. Most carriers offer a "pleasure use" or low-mileage tier that runs 8 to 18 percent cheaper. Carriers will not move you into it automatically — you have to call and ask.

2. Choosing the wrong deductible

A $250 collision deductible feels safer than $1,000, but the premium difference is often $300 to $450 a year. If you go three years without a claim — and most drivers do — you have spent more on the lower deductible than a single claim would have cost you out of pocket. Run the math against your driving record before defaulting to the lowest deductible offered.

3. Stacking coverage you already have elsewhere

Rental reimbursement, roadside assistance, and accidental death payouts are commonly bundled into auto policies. Most credit cards already include rental reimbursement. AAA members already have roadside. Life insurance handles accidental death better and cheaper. Check what overlaps before paying for it twice.

4. Paying monthly instead of in full

The "convenience" of monthly billing usually carries a 6 to 12 percent service charge baked into the premium. Paying in full at renewal — or even semi-annually — typically unlocks a discount that pays you back more than what you would earn parking that money in a high-yield savings account.

5. Bundling without doing the math

Multi-policy bundling discounts are real, but they are not always the cheapest path. We regularly see homeowners save $400 to $700 a year by splitting their auto and home across two carriers. The bundle discount is a marketing number — the only number that matters is the sum of the two final premiums.