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Claim Frequency Rate Calculator

Frequency analysis exposes trends that drive insurance renewal pricing.

$

Frequency per 100 units / yr

3.11

Expected loss / unit / yr

$560

Portfolio expected loss / yr

$252,000

How the math works

Frequency = claims ÷ units ÷ years. Per 100 = × 100. Expected loss per unit = frequency × severity.

42 ÷ 450 ÷ 3 = 3.11% or 3.11 per 100 units. × $18k = $560/unit × 450 = $252k annual expected loss.

Editorial noteMaintained by EveryCalc - Reviewed June 2026

EveryCalc calculators are designed for fast, practical estimates with transparent inputs and no required account. We use plain formulas, visible assumptions, and related tools so visitors can check the result from more than one angle.

Results are informational only. For financial, tax, legal, medical, construction, or other high-impact decisions, verify the output against primary sources or a qualified professional.

Learn more about our review process on the EveryCalc methodology page.

How this calculator works

What this page estimates

This Claim Frequency Rate Calculator is built to give a quick, browser-based estimate for claim frequency rate. Frequency analysis exposes trends that drive insurance renewal pricing. The inputs stay on the page during normal use, and the result should be treated as an estimate for planning, comparison, or education rather than professional advice.

Calculation approach

The calculator applies the standard relationship implied by the inputs, then formats the answer so it can be checked and reused. For finance tools, the most important step is using consistent units, rates, time periods, and assumptions before comparing the result with another calculator or outside quote.

Example workflow

For example, start with a realistic value you already know, change one input at a time, and watch how the answer moves. That makes it easier to tell whether the result is being driven by the main amount, the rate, the time period, or a unit conversion.

Practical checks

  • Use current, real-world numbers when the result affects money, health, tax, or legal decisions.
  • Run a low, base, and high case when the inputs are estimates.
  • Check the related calculators below when the next decision depends on a different assumption.

How to interpret the claim frequency rate result

Best use

Use the result as a planning number for comparing payments, rates, returns, tax reserves, or cash-flow choices before you request a quote or make a commitment.

Cross-check

Compare the answer with the contract, lender estimate, tax form, brokerage statement, payroll record, or invoice that will control the real-world outcome.

Watch for

Do not rely on a single optimistic rate, return, or fee assumption. Money pages work best when you run low, base, and high cases and keep professional advice separate from the estimate.

This page belongs to the Finance calculator library, so the answer should be read in the context of the decision you are modeling rather than as a universal rule.

Before relying on this claim frequency rate estimate

Most calculator mistakes come from the inputs, not the arithmetic. Use this short audit before you reuse the answer in a spreadsheet, quote, application, or important conversation.

Confirm source numbers

Match balances, rates, fees, taxes, income, and payment dates against the lender quote, payroll record, tax form, statement, invoice, or contract.

Separate cash flow from total cost

A lower monthly payment can still cost more over time if fees, interest, taxes, or a longer term are hidden in the structure.

Run conservative cases

Test at least one higher-cost or lower-return case before using the output for a purchase, refinance, investment, loan, or tax decision.

Rerun this page when the rate, price, term, fee, tax rule, income, expense, or expected holding period changes.

How to Use

  1. Enter total claims in period.
  2. Enter insured units.
  3. Enter period years.
  4. Enter avg claim severity.
  5. Read frequency + severity × frequency.

Frequently Asked Questions

What's a normal claim frequency?

Multifamily: 5-15 claims per 100 units per year. SFR: 3-8. Commercial office: 1-3. Retail: 3-6. Industrial: 1-4. Hotel: 8-15 (high turnover = more slip/fall, water damage). Mix of high-frequency-low-severity (water damage, minor slip/fall) and low-frequency-high-severity (fire, major liability). Frequency trending up 8%+ per year is carrier red flag — insurance will non-renew or raise premium 30-75% at next renewal.

Severity vs frequency?

Severity = avg claim cost. Frequency × severity = expected loss per year. Insurance carriers price on loss cost + ALAE (allocated loss adjustment) + ULAE (unallocated) + overhead + profit. Frequency changes are more controllable than severity. Reducing frequency by 30% is operational (preventive maintenance, safety programs); reducing severity is often outside operator control. Focus on frequency.

How do carriers react to frequency trends?

Low stable frequency: premium decreases 5-15% at renewal. Moderate frequency increase (10-20% YoY): premium increase 10-30%. Severe increase (30%+ YoY) or significant single-claim increase: non-renewal or 50-100%+ premium increase. Carriers track loss ratios: if ratio >80%, you're being subsidized; if >100%, you're a target for non-renewal. Portfolio owners negotiate by sharing 3-year loss history and committing to loss-control investments.

How to reduce frequency?

Preventive maintenance program (reduces water damage, electrical fire, slip/fall): 25-50% frequency reduction. Safety training for staff: 15-30%. Tenant screening (for liability-avoidant tenants): 10-25%. Property condition reports every 6 months: 10-20%. Camera systems for common areas: 15-30%. Institutional operators running all five achieve 40-60% lower frequency than peers at comparable quality tier. This pays back 5-10x through premium savings.

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