Insurance Policy Comparison Calculator

Introductory pricing is common in insurance. A policy that wins on price in year one can lose badly by year three if its increases run faster, and most people never notice because they compare only the current renewal against the current quote.

This calculator projects both policies forward using the increase rates you supply and reports which one costs less over the period you actually intend to stay.

Result

Cheaper over the period

Policy B

Total difference

$48

Policy A total cost: $7,306
Policy B total cost: $7,258
Policy A premium in the final year: $1,810
Policy B premium in the final year: $1,568
Year the cheaper policy changes: Year 4
Policy A average per year: $1,461
Policy B average per year: $1,452

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

Increase rates are your assumptions. No carrier guarantees a future rate, and a policy that is cheaper today can be the more expensive one within a few renewals.

Premium by year

Year	Policy A	Policy B	Difference	Cheaper that year
1	$1,150	$1,340	$190	Policy A
2	$1,288	$1,394	$106	Policy A
3	$1,443	$1,449	$7	Policy A
4	$1,616	$1,507	$108	Policy B
5	$1,810	$1,568	$242	Policy B

How to use the insurance policy comparison calculator

Enter the first-year premium for each policy.
Enter the annual increase you expect for each - use the carrier’s recent history if you have it.
Set the number of years you realistically expect to keep the policy.
Compare the total cost over that period rather than the first-year price.

What people use this for

Evaluating a switching offer that looks cheap in the first year.
Deciding whether to stay with a carrier whose renewals have been rising steadily.
Planning insurance costs across a fixed period such as the term of a lease or a loan.
Comparing a carrier known for stable pricing against one known for aggressive new-business rates.

Worked examples

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

Introductory offer versus steady pricing

Policy A at $1,150 rising 12% a year against Policy B at $1,340 rising 4% a year, held for five years.

Cheaper over the period: Policy B
Policy A total cost: $7,306
Policy B total cost: $7,258

Short holding period

The same two policies, but kept for only two years.

Cheaper over the period: Policy A
Policy A total cost: $2,438
Policy B total cost: $2,734

Why the first year is a poor guide

New-business pricing and renewal pricing are set separately at most carriers. A discount designed to win your business does not necessarily repeat, and the increase applied at the first renewal is where the difference usually appears.

The only reliable input here is history. Ask what your renewals have done over the last three years, and compare that against the new offer rather than against the promise.

What an increase rate really represents

A carrier’s increase combines general rate filings, changes to your own record, and the loss of any introductory discount. Only the first applies to everyone; the other two are specific to you.

Because increases compound, a persistent gap of a few points a year becomes large quickly. Six years of 12% roughly doubles a premium; six years of 4% raises it by about a quarter.

Methodology and assumptions

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

Each year’s premium is the previous year multiplied by (1 + increase). Totals are the sum across the chosen number of years.
Increase rates are your assumptions. No carrier guarantees a future rate and this tool has no pricing data of its own.
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

How do I find a carrier’s typical increase?

Your own renewal notices are the best source. Compare the premium across the last three years with no coverage changes in between.

Should I switch every year to chase new-business pricing?

Some people do. The trade-offs are the time involved, the loss of any loyalty or claims-free benefits, and the fact that a gap in coverage history can itself raise future prices.

Does the comparison include claims?

No. This tool compares premiums over time only. Use the coverage comparison tool to factor deductibles and claims into the decision.

Is a lower total always better?

Only if the coverage is genuinely equivalent. Compare limits, deductibles and exclusions before comparing prices.

Related calculators

More comparison tools on InsuranceQuoteTools.

Browse all 10 tools →

Your numbers