Rex says
Money math without the spreadsheet headache. Plug in your numbers and I'll show you exactly where the dollars land.
Try a scenario
Click to load — tweak from there.Inputs
Result
Net expected value of lower deductible
$450
Claims needed over horizon to break even
1.20
Total extra premium over horizon
$1,800
Expected deductible savings over horizon
$2,250
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How to use this
- 1Enter higher deductible option ($).
- 2Enter lower deductible option ($).
- 3Enter extra annual premium for lower deductible ($).
- 4Enter expected claims per year (frequency).
- 5Enter years you'll hold this policy.
- 6Read your net expected value of lower deductible on the right — it updates as you type.
- 7Hit Share to keep the scenario or send it to someone.
About this calculator
Choosing a lower deductible always means paying more premium every single year in exchange for paying less out of pocket on the rare year you file a claim. This is a straightforward breakeven problem: the extra premium you pay for the lower deductible needs to be compared against the deductible savings you'd only realize if you actually file a claim. This calculator computes how many years of the extra premium equal one claim's worth of deductible savings, then factors in your estimated claim frequency to show whether the lower deductible is expected to pay off over a typical holding period like 10 years.
Worked example
Using the values the calculator loads with:
Inputs
- Higher deductible option: 2000 $
- Lower deductible option: 500 $
- Extra annual premium for lower deductible: 180 $
- Expected claims per year (frequency): 0.15
- Years you'll hold this policy: 10
Results
- Net expected value of lower deductible: $450
- Claims needed over horizon to break even: 1.2
- Total extra premium over horizon: $1,800
- Expected deductible savings over horizon: $2,250
What each field means
Inputs
- Higher deductible option ($)
- The higher deductible option used in the calculation, measured in $. Starts at 2000 $ so you have a working example on load.
- Lower deductible option ($)
- The lower deductible option used in the calculation, measured in $. Starts at 500 $ so you have a working example on load.
- Extra annual premium for lower deductible ($)
- The extra annual premium for lower deductible used in the calculation, measured in $. Starts at 180 $ so you have a working example on load.
- Expected claims per year (frequency)
- The expected claims per year (frequency) used in the calculation. Starts at 0.15 so you have a working example on load. Accepted range: 0–3.
- Years you'll hold this policy
- The years you'll hold this policy used in the calculation. Starts at 10 so you have a working example on load. Accepted range: 1–40.
Results
- Net expected value of lower deductible
- Returned as a money amount in US dollars and shown as the headline result. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Claims needed over horizon to break even
- Returned as a decimal number. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Total extra premium over horizon
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Expected deductible savings over horizon
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
FAQ
How do I estimate my expected claims per year?
For auto and home, industry data suggests the average policyholder files a claim roughly once every 8-12 years for home (about 0.08-0.12/year) and slightly more often for auto in high-traffic areas. Your own claim history is the best guide — if you haven't filed a claim in a decade, use a lower frequency than the national average.
If the net expected value is negative, does that mean I should never buy the lower deductible?
It means the lower deductible costs more in premium on average than it saves in claims, which is true for most buy-downs since insurers price them to be profitable. Many people still choose lower deductibles for cash-flow reasons — a $500 deductible is easier to cover in an emergency than $2,000 — so this is a risk-tolerance decision, not purely a math one.
Does filing more claims for smaller amounts actually help me financially?
Often no. Many insurers apply a surcharge or non-renewal risk after a claim, especially a second one within a few years, which can raise your premium by more than the claim payout was worth. A lower deductible only pays off financially if you file claims you'd have filed regardless of deductible level, not if it encourages you to file more.
Should I raise my deductible if I have a solid emergency fund?
Generally yes — raising your deductible from $500 to $2,000 typically saves noticeably more in annual premium than the extra $1,500 of self-insured risk costs you over time, as long as you can actually cover that $2,000 out of pocket without financial hardship if a claim occurs.
Accuracy and limitations
- Results are estimates before tax, fees, and inflation unless an input explicitly covers them.
- Rates are treated as fixed for the whole period — variable-rate products will drift from this projection.
- This is educational maths, not financial advice. Check anything contractual with the lender or your accountant.
Related tools
Cite this calculator
Writing about this topic? Grab a citation — every link helps keep these tools free.
RevenueLab. (2026). Deductible Buy-Down Breakeven Calculator. Retrieved from https://www.revenuelab.fyi/toolbox/deductible-buy-down-breakeven
<p>Source: <a href="https://www.revenuelab.fyi/toolbox/deductible-buy-down-breakeven" target="_blank" rel="noopener">Deductible Buy-Down Breakeven Calculator — RevenueLab</a> (2026).</p>
Source: [Deductible Buy-Down Breakeven Calculator — RevenueLab](https://www.revenuelab.fyi/toolbox/deductible-buy-down-breakeven) (2026).