Renewal Premium Calculator

A renewal increase is almost never one thing. It is a general rate change, plus whatever happened on your policy during the year, plus or minus any discount that started or ended. Carriers print the result rather than the components.

This calculator reassembles those components, which is what makes it possible to tell the negotiable part from the part that applies to everyone.

Result

Estimated renewal premium

$1,703

Change from current

$363

Change as a percentage: 27.06%
Estimated monthly cost: $142
Added by the rate increase: $121
Net coverage changes: $60
Net discount impact: $0
Current premium: $1,340

This is an estimate based on the values you entered. Actual premiums, coverage, eligibility and pricing vary by provider and by individual circumstances.

Renewal increases usually combine a general rate change with changes specific to you. Ask the carrier to itemise which part is which before accepting it.

Comparing this number with two or three fresh quotes is the only reliable way to know whether the renewal is competitive.

How to use the renewal premium calculator

Enter the premium you are paying now.
Enter the rate increase percentage applied, or the one you expect.
Add the cost of coverage you added and subtract coverage you removed.
Enter any discount lost and any new discount gained, plus fees.

What people use this for

Checking a renewal notice against what you expected before paying it.
Budgeting for next year before the notice arrives.
Testing whether bundling a second policy would offset an increase.
Preparing a specific question for an agent rather than a general complaint.

Worked examples

Every figure below is produced by running this calculator against the example inputs, so the numbers always match the tool.

A rate rise and a lapsed discount

A $1,340 premium with a 9% rate increase, $60 of added coverage, and a 10% loyalty discount that has ended.

Estimated renewal premium: $1,703
Change from current: $363
Change as a percentage: 27.06%

Offsetting the increase

The same rate rise, but adding a 15% multi-policy discount and removing $180 of coverage no longer needed.

Estimated renewal premium: $1,119
Change from current: -$221
Net discount impact: -$192

Which part is negotiable

A filed rate change applies to everyone in a class and is not negotiable at the individual level. Changes specific to you - a claim, a new driver, a higher rebuild cost - are factual rather than negotiable either.

What is within your control is the policy itself: deductibles, limits, optional coverages, and every discount you might qualify for and have not been given. That last category is where most of the recoverable money is.

What to do with the estimate

A renewal figure is only useful compared against something. Two or three fresh quotes at the same limits and deductibles will tell you within an afternoon whether the renewal is competitive.

Before switching, check what does not transfer: claims-free forgiveness, diminishing deductibles and loyalty tiers usually reset with a new carrier, and they can be worth more than the difference in premium.

Methodology and assumptions

What this calculator does, and what it deliberately does not do.

Renewal premium = current premium × (1 + rate increase), plus added coverage, minus removed coverage, adjusted for discounts lost and gained, plus fees.
The rate increase is your input. This tool has no access to carrier filings and does not predict rate changes.
All figures are estimates produced from the values you enter. This site has no rate feed and no carrier data, so it cannot quote or price a policy.
Nothing you type is transmitted or stored - the calculation runs entirely inside your browser.

This calculator provides an estimate based on the information you enter. Actual insurance premiums, coverage, eligibility and pricing vary by provider and individual circumstances.

This website is not an insurance company, an insurance agency or a licensed broker. It does not sell insurance, does not provide insurance quotes, and is not authorised to give advice about which policy you should buy.

No result produced here is an offer of insurance or a guarantee of coverage. Only a licensed insurer or agent, working from your verified details, can quote or bind a policy.

Frequently asked questions

Why did my premium rise with no claims?

General rate increases apply across a whole class. Rising repair and rebuild costs, weather losses in your region and inflation all feed into filed rates regardless of your own record.

Can I ask why the rate went up?

Yes. In many jurisdictions insurers must explain the basis of an increase on request. That is a more productive question than asking for a discount.

Do discounts expire?

Some do - introductory, loyalty and certain safety discounts can lapse after a set period. A lapsed discount is one of the most common hidden causes of an increase.

Should I shop every year?

Every year or two is reasonable. More often has diminishing returns and can cost you benefits that took years to earn.

Related calculators

More renewals & dates tools on InsuranceRenewalTools.

Browse all 4 tools →

Your numbers