Business Interruption Insurance Calculator
About Business Interruption Insurance
Business interruption insurance (also called business income insurance) replaces lost revenue when a covered event forces your business to temporarily close. Covered events typically include fire, storm damage, or other property losses. It pays for ongoing fixed costs like rent, utilities, and salaries while your business recovers. The key is selecting an adequate coverage period — most small businesses choose 6 to 12 months. Under-insuring your business interruption risk is one of the most common and costly mistakes business owners make. This calculator estimates the coverage you need based on 80% of your monthly revenue for the chosen recovery period.
Frequently Asked Questions
Decision evidence
Method, verification, and limits
Calculation method
Builds a restoration-period cash need from continuing expenses, lost contribution margin, temporary-location costs, and a time deductible.
Verification step
Reconcile inputs to recent financial statements and test a longer closure that includes the policy waiting period and restoration limits.
Important limits
This planning result does not determine price, eligibility, policy interpretation, tax treatment, or claim payment. Current forms, state rules, underwriting, and individual facts can change the outcome.
Primary references
Reviewed by the CoverageFixPro Editorial Team · Updated August 11, 2026
How to Use This Calculator
- Enter your details — Fill in the required fields above with your personal or policy information. The more accurate your inputs, the better your estimate.
- Review your results — Your estimate appears instantly as you complete the form. Check the breakdown to understand how each factor affects your numbers.
- Compare and take action — Use the results to compare options, discuss with your insurance agent, or make informed decisions about your coverage needs.
Common Use Cases
- Shopping for a new policy — Get a baseline estimate before requesting quotes from multiple insurers so you know what to expect and can negotiate effectively.
- Reviewing coverage at renewal — Compare your current costs against what this calculator suggests to identify potential savings or coverage gaps before your policy renews.
- Financial planning and budgeting — Factor insurance costs into your monthly budget or long-term financial plan with realistic estimates rather than guesswork.