Prorated Calculator for Insurance

Free prorated calculator for insurance: full-term premium USD, policy days, days used, linear earned vs unearned premium, optional unearned retention %, daily rate, charts, scenario rows—not a carrier refund guarantee.

Prorated Calculator for Insurance | Earned & Unearned Premium

Important: Carrier contracts use earned premium, minimum earned, short-rate tables, state rules, and fees that this page does not know. The widget is a plain pro rata illustration plus an optional “keep % of unearned” knob—not insurance advice, not a quote, and not a substitute for your policy PDF and licensed agent.

Summary: Enter the full-term premium, the policy length in days, and how many days have run (or how many days you want to price). The tool shows earned vs unearned premium on a linear day basis, an optional short-style haircut on the unearned bucket, daily rate, and scenario rows—same transparency style as our other planners.

Prorated calculator for insurance (earned / unearned premium)

Core identity: earned = premium × (days used ÷ policy days), unearned = premium − earned. Optional field models a simple fraction of unearned not returned (fees/retention illustration)—not a filed short-rate schedule.

Formulas (short)
  • Daily rate = premium ÷ policy days.
  • Earned (pro rata by time) = premium × (days used ÷ policy days), capped at premium.
  • Unearned = premium − earned.
  • Modeled refund = unearned × (1 − retention% ÷ 100), where retention% is your editable “not returned” slice of unearned.
Policy & time

For mid-term cancel illustrations, this is usually days from inception to cancellation date (per your own calendar math).

0% = full unearned returned in the model. Use a small positive number to mimic “I only get back part of unearned” conversations—still not your carrier’s exact table.

Earned premium, unearned, and refund model will appear here.

Mid-term endorsements, audits, installment finance charges, and surplus lines fees are out of scope—extend the spreadsheet offline.