Car Insurance Renewal Calculator
Enter your renewal price and the new-customer quote for the same coverage. The calculator sizes the loyalty penalty per year and across your years - then the 30-minute fix.
Insurers price renewals up on the assumption that loyal customers never check: Britain banned the practice outright after regulators proved it, and US pricing still runs on it. The renewal letter window three weeks early is when switching costs nothing.
How to use
- Renewal price from the letter - full premium, not the monthly.
- A new-customer quote for identical coverage from any comparison site.
- Years with the insurer - the lifetime tax line needs it. All three update live.
Frequently asked questions
Why does car insurance go up every year with no claims?
Price optimization: insurers raise renewal premiums incrementally because data shows existing customers rarely shop. Britain banned the practice in 2022; most US states still allow it. A no-change renewal letter is a prompt to quote, not a verdict on your driving.
How much can I save by switching car insurance?
Studies and our renewal math both land on 10-25 percent for identical coverage - a few hundred dollars a year at typical premiums. The calculator converts your specific renewal letter into the number, and the retention call with a competing quote recovers part of it without switching.
When should I shop my car insurance renewal?
About three weeks before the renewal date: the new policy can start exactly as the old ends, leaving zero coverage gap and zero refund hassle. Mid-term switches work too but prorate with more paperwork.
Does staying loyal to an insurer ever pay?
Accident forgiveness and disappearing deductibles are the advertised rewards, but pricing data shows the loyalty discount almost never offsets the annual creep. Quote every renewal; if your current insurer truly values you, the retention desk will prove it when you show them the competing number.