When Is the Best Time to Buy Car Insurance?

Shopping three to four weeks before your policy ends is the best time. If you just got a rate increase notice or had a life event that made you less risky to insure, act now instead.

Find out if you're overpaying for car insurance below.

Written by Mark Fitzpatrick

Updated: June 19, 2026

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Key Takeaways

Shop three to four weeks before the date your policy ends. You'll get accurate prices and have time to start a new policy before your current one runs out.

Drivers who skip shopping at renewal pay an average of $732 more per year, per MoneyGeek's analysis.

If your rate just went up or a life change made you less risky to insure, compare prices today and shop immediately.

The Best Time to Shop Car Insurance

Most drivers overpay because when the renewal letter arrives, they just pay it without comparing prices. For the same 40-year-old driver with a clean record, the cost difference between the cheapest and most expensive insurer is $732 per year, per MoneyGeek's April 2025 rate data.

Three to four weeks before your policy ends is the right stretch to shop. Earlier and the price you're quoted may change before your start date. Later and you're likely to accept a higher price just to avoid a gap in coverage. Waiting for another thirty days raises your rate by 25%, or about $474 more per year. Start your new policy before you cancel the old one.

Why the 3-to-4-Week Stretch Works

New-customer prices at competing insurers are 10% to 20% lower than what staying customers pay at renewal. That difference grows every six or twelve months you don't compare. Before you commit, check that a price stays the same for three to five business days. A price that changes is one you can't count on.

One warning: new-customer prices often go up at the first renewal. Ask the agent whether the price you're quoted is the new-customer rate or what you'll keep paying after that first renewal.

When the Rule Changes

The three-to-four-week rule has four exceptions. Two of them mean you should shop right away: if you get a rate increase notice or if something happens in your life that makes you a better risk. The other two also mean you should act early: your car drops in value or you're having problems with your current insurer.

Rate Increase Notice

If your insurer sends a rate increase notice, shop immediately. Most states require insurers to give at least 30 days' notice before a rate hike takes effect; California, New York and Florida require 45 days or more. Use that time to find a cheaper policy, not to accept the higher price.

Life Events That Lower Your Risk

Turning 25 and getting married can each lower your rate, because insurers charge less for drivers they consider lower risk. Moving to a ZIP code with fewer accidents does too. Compare prices within 30 days of any of these changes. You can get the lower rate as soon as the change happens, without waiting for renewal.

Car Value Has Dropped

When your car's market value drops to the point where full coverage costs more than what the insurance company would pay you if your car were totaled, you can drop that coverage before your policy ends and pay less. MoneyGeek's guide to when to drop collision coverage has the break-even calculation so you can check the numbers for your specific car before making a change.

Mid-Term Policy or Service Problem

A coverage gap in your current policy is a valid reason to switch before renewal. So are billing errors and poor claims handling. Before you cancel, confirm how your refund works. Most insurance companies give back money for the days left on your policy, but some charge a small fee.

What to Do After You Decide to Switch

Switch mid-term if you'd save $300 or more per year. Under $200, the possible cancellation fee usually cancels out the saving, so wait for renewal. Between $200 and $300, wait for your renewal date unless one of the four situations above applies.

When you're ready to switch, follow this sequence exactly:

1
Get multiple quotes.
Get at least three price quotes that match your current coverage exactly. Don't lower what your policy covers just to find a cheaper price. That's not an equal comparison.
2
Check your declarations page.
Coverage amounts can change at renewal without a separate warning.
3
Start your new policy.
When a price stays the same for three to five business days, start the new policy and confirm the exact start date in writing.
4
Cancel your old policy.
Cancel your old policy on the same day the new one starts, not a day before. Request cancellation in writing and keep the confirmation.
5
Compare prices again.
When your first renewal notice from the new insurer arrives, check whether your price went up. If it's more than 10% higher with no accidents or tickets since you switched, check prices again.

When to Buy Car insurance: FAQs

When is the best time to buy car insurance?

Three to four weeks before your policy ends. Per MoneyGeek's April 2025 data, a 40-year-old driver with a clean record pays $732 more per year at Allstate ($162/month) than at GEICO ($101/month) for the same coverage. Set a calendar reminder 30 days before your policy ends so you don't miss the stretch.

Can you switch car insurance at any time?

Yes. Most car insurance policies let you cancel before the policy ends, and you get back the money you paid for the days you won't use, usually within 10 to 30 business days. Start the new policy before canceling the old one to avoid any gap in coverage.

What if I'm borderline on whether to switch right now?

Get three price quotes and compare them to what your current insurer is charging you. A saving of $300 or more per year is worth switching for before your policy ends. Under $200, wait for renewal.

Are car insurance rates actually lower at certain times of year?

MoneyGeek's data shows prices are $20 to $50 lower per year in January and February, because fewer people compare prices after the holidays and insurance companies lower their prices to compete. That seasonal difference is smaller than the gap between insurers. Shopping before your policy ends matters more than the month you do it.

How does my insurer handle a mid-term cancellation?

You'll get your money back for the days left on your policy. Most companies send it within 10 to 30 business days from the date you cancel. Make sure you get the cancellation date confirmed in writing. And check if there's a small fee for canceling or if you get the full refund for what you didn't use.

Does switching car insurance hurt my credit score?

No. When an insurance company checks your credit to give you a price quote, it uses a type of check that doesn't affect your credit score, no matter how many companies you check with.

MoneyGeek's rate data for this page comes from Quadrant Information Services via MoneyGeek's SQL database, reflecting April 2025 premiums for a 40-year-old driver with a clean record, good credit and 100/300/100 liability limits with a $1,000 comp/collision deductible. Rates are averaged across male and female profiles for five providers: GEICO, Progressive, State Farm, Allstate and AAA. For more detail, see our methodology.

About Mark Fitzpatrick

Mark Fitzpatrick, a Licensed Property and Casualty (P&C) Insurance Producer in Connecticut, is MoneyGeek's resident insurance expert. He has spent nearly a decade analyzing the market, first at LendingTree and now at MoneyGeek, where he has produced original research on hundreds of carriers and millions of rates across auto, home, renters, health and life insurance.

He covers economics and insurance at MoneyGeek, and his work has been featured in The Washington Post, The New York Times and NPR, among other outlets.

Like all MoneyGeek analysts, he draws on independent cost and consumer experience data. No insurance company partnership influences his recommendations.

Fitzpatrick earned his degrees from Johns Hopkins University (M.A. Economics and International Relations) and Boston College (B.A.). He began his career in financial risk management at State Street. He's also a five-time “Jeopardy!” champion.

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When Is the Best Time to Buy Car Insurance?

The Best Time to Shop Car Insurance

Why the 3-to-4-Week Stretch Works

When the Rule Changes

What to Do After You Decide to Switch

Get multiple quotes.

Check your declarations page.

Start your new policy.

Cancel your old policy.

Compare prices again.