Insurance

Business Interruption Coinsurance Calculator

Model the effect of a coinsurance requirement on a business-interruption loss using values you enter.

✓ No signup✓ Mobile friendly✓ Clear limitations✓ Browser-first where practical
Recent tools are remembered only on this device.
Planning estimate only. Business-interruption policy language varies. This simplified model cannot determine coverage, period of restoration or actual claim payment.
Required amount by formula$800,000.00
Coinsurance ratio75.0%
Modeled payment after deductible$145,000.00
Modeled uninsured portion$55,000.00

Why use this business interruption coinsurance calculator?

Model the effect of a coinsurance requirement on a business-interruption loss using values you enter. It is intended for scenario planning so you can compare the commercial effect of changing the key assumptions before requesting or reviewing a formal quote.

Example

Start with the example values, replace them with the figures from your own quote, policy, contract or operating plan, then change one assumption at a time to see which input drives the result.

Important note

Business-interruption policy language varies. This simplified model cannot determine coverage, period of restoration or actual claim payment.

How to use it

Start with the inputs shown above, review the assumptions or options, then generate the result. Where the tool creates a file, keep the original until you have opened and checked the downloaded output.

Frequently asked questions

Is Business Interruption Coinsurance Calculator free?

Yes. The core tool is free to use without creating an account.

Do I need an account to use Business Interruption Coinsurance Calculator?

No. You can use the core Toolbox workflow without signing up.

Does Business Interruption Coinsurance Calculator work on mobile?

Yes. Toolbox is designed for modern mobile and desktop browsers, although complex file workflows can be easier on a larger screen.