How it works
A deductible is the amount you pay before the insurer pays anything, and raising it is one of the few ways to cut a premium without cutting coverage. The trade is straightforward: you keep a guaranteed saving every year, in exchange for a larger bill in the years you claim. This calculator makes both sides comparable. Break-even is the first number that matters — the extra exposure divided by the annual saving tells you how many claim-free years it takes for the saving to fund one higher deductible. If raising your deductible by $1,000 saves $168 a year, break-even is about six years, so the move pays as long as you claim less often than that. Expected annual cost is the second number. It weights the deductible by how often you actually claim, which is the only way to compare a certain premium saving against an uncertain future payment. The result usually favours the higher deductible for households that rarely claim, because insurers price small frequent claims expensively. The decision has one hard prerequisite the maths cannot capture: the extra exposure has to be sitting in an emergency fund. A deductible you would have to borrow to pay is not a saving, it is a deferred credit-card balance at 22% interest.
Formula
Break-even years = (new deductible - old deductible) / annual premium saving | Expected cost = premium + deductible x claims per year
Tips
- Only raise the deductible to a number your emergency fund can absorb today, without borrowing.
- Ask the carrier to quote every deductible tier at once — the saving is rarely linear, and one tier is usually the sweet spot.
- Home policies often carry separate wind, hail and water deductibles stated as a percentage of dwelling value; check each one, not just the headline number.
- A higher deductible also discourages small claims, which protects you from the premium surcharge that follows them.
- Re-check the trade after a major life change — the right deductible tracks your cash cushion, not your car.
Frequently asked questions
- Should I raise my insurance deductible?
- Raise it if the premium saving pays back the extra exposure within about five years and the cash is already in your emergency fund. Most households claim roughly once a decade, so a five-year break-even leaves a comfortable margin. If paying the higher deductible would mean borrowing, keep the lower one.
- How much does a higher deductible save?
- Going from $500 to $1,000 typically cuts a premium by 10 to 15%, and moving to $2,500 can save 25 to 30%. The exact figure varies by carrier and state, so ask for a quote at each tier rather than assuming the standard percentages.
- Does the deductible apply to every claim?
- It applies per claim, not per year, on auto and home property coverage — two separate incidents mean two deductibles. Liability claims have no deductible, and health insurance deductibles work differently, resetting annually and applying across all claims in the year.
- What is the difference between a flat and a percentage deductible?
- A flat deductible is a fixed dollar amount. A percentage deductible, common for wind and hurricane coverage, is stated as a percentage of the dwelling limit — 2% of a $400,000 home is $8,000, which is far larger than most homeowners expect when they read the declarations page.
- Will a higher deductible affect my claim payout?
- Yes — the payout is the covered loss minus the deductible. On a $4,000 repair, a $500 deductible pays $3,500 and a $1,500 deductible pays $2,500. Coverage limits are unchanged; only the first slice of every claim moves to you.