Insurance Pro Rata and Short-Rate Calculator
Calculate earned premium, pro-rata refund and short-rate cancellation refund by policy dates, annual premium and penalty.
live visual
transparent result
Calculator inputs
Insurance Pro Rata and Short-Rate Calculator results
How the calculation works
Pro-rata earned premium = premium × used days ÷ term; short-rate refund subtracts the selected penalty and fees.
What to verify
The insurer’s filed short-rate table and policy terms control the actual refund.
How accurate is this calculator?
It is a transparent planning calculation based on the entered values and stated assumptions. Verify inputs and obtain professional or supplier confirmation where the decision is consequential.
Does it use U.S. defaults?
Yes. U.S. units, terminology, pricing conventions and rules are the primary defaults where location matters.
Is data sent to a server?
No. The calculation runs locally in the browser and does not send entered values to a remote calculation service.