“My car insurance went up 22% with no claims”: the renewal letter, line by line

You wrote "same car, same address, same commute," and I believe you. But a renewal price isn't only about you. It's your rating factors multiplied by your insurer's base rate, plus or minus discounts. Any of the three can move, and the renewal packet usually tells you which one did if you know where to look.

Start with the declarations page, not the bill

The bill gives you one number. The declarations page, the "dec page," breaks it apart. Put last year's next to this year's and walk down it.

Line on the dec page	What it means	What to check
Policy period	The six or twelve months the price covers	A six-month policy renewing twice a year can make an annual comparison look worse than it is
Vehicles and VINs	What is insured	Same car, but has its age bracket changed the comprehensive rate?
Drivers listed	Everyone rated on the policy	A teenager turning 16 or a new household member added by the insurer
Coverage limits	Bodily injury, property damage, uninsured motorist	Did anything get raised automatically?
Deductibles	What you pay before collision or comprehensive kicks in	Unchanged deductibles mean the jump is in the rate, not the coverage
Discounts	Multi-policy, paid-in-full, paperless, good driver	The most common silent change. A discount that quietly falls off can account for a big share of an increase
Premium per coverage	The price of each line	Which lines grew? That tells you the story

If the coverage-by-coverage prices all rose by roughly the same percentage, it's probably the base rate. If one line rose and the rest didn't, it's probably a factor specific to you.

"Rates went up for everyone" can be true

Auto insurers in most states have to file their rates with the state insurance department, and many of those filings are public. A large number of states make them searchable through SERFF Filing Access, run by the National Association of Insurance Commissioners; others publish filings on their own department website. Search your carrier's name and look for a private passenger auto filing with an effective date near your renewal. The filing will show the overall approved change.

If the rep is right, you'll see it there. You'll also notice that a statewide average doesn't mean every customer moved by the same amount. An average 10% filing can land as 4% on one policy and 22% on another, depending on how the rating factors were reweighted.

The factors that move without you doing anything

• Credit-based insurance score. Where it's allowed, many insurers use it. A few states, including California, Hawaii and Massachusetts, bar using credit to price auto insurance. Under the federal Fair Credit Reporting Act, if an insurer uses information from your credit report to charge you more, it has to send you an adverse action notice. Look for one in the renewal envelope.
• Territory. Insurers rate by ZIP code, and they reprice territories. Your address stayed put, but its rating may not have.
• Vehicle symbol. Cars are rated by model, based on how much they cost to repair and how often they're claimed. That rating can change as the insurer's claim data on your model changes.
• Loss of a discount. Missed a paperless toggle, a telematics device that stopped reporting, a home policy you moved elsewhere? The multi-policy discount is a common one to lose without noticing.

Ask for the reason, then shop

You said it feels like being punished for loyalty. Sometimes it is, in effect. Some insurers price renewals partly on how likely a customer is to leave, and some state regulators have restricted that practice. You can't see that factor directly, but you can test it the only way that works: by getting other prices.

Do it properly:

1. Use your current dec page as the spec sheet. Same limits, same deductibles, same drivers, same vehicles.
2. Get at least three quotes, mixing carriers that sell direct with ones that sell through independent agencies, which can quote several companies at once.
3. Compare the six-month or annual price on the same basis.
4. If a competitor is meaningfully cheaper, call your current carrier once, tell them the number, and ask whether there's any discount you qualify for that isn't applied. Then decide.

Quote shopping doesn't hurt your credit; insurance quotes use what's called a soft inquiry, which lenders don't see. (A reader asked about that exact worry last week; that letter is in the Car Premiums pile.)

When staying is fine

If the filing shows a large statewide increase, the other quotes come back within a few dollars of your renewal, and every discount is applied, then the increase is the market and you're not being singled out. Pay it, set a calendar reminder for six weeks before next renewal, and check again then.

At 22%, three other numbers are worth an evening.