Business Income Worksheet: What the Form Asks You to Attach

This business income worksheet attachment checklist lists all required documents for valid commercial property claim submissions. It aligns with standard insurance carrier requirements for business interruption claims, so you can cross-verify every item in your claim folder before submitting to avoid processing delays. Margin Desk created this guide for administrative use only, and it does not replace guidance from your licensed claims adjuster or insurance broker. All documents listed should be scanned as clear, unredacted copies unless your carrier explicitly permits partial redaction of sensitive non-claim-related data.

The table below is a printable checklist you can keep in your commercial property claim folder to track required attachments before submission:

Prior 12-month profit and loss form

This document establishes your pre-loss operating baseline, which carriers use to calculate the difference between your expected revenue during the interruption period and your actual reduced revenue. The 12-month period must end on the last full calendar month before your loss date, so if your property suffered damage on March 17, 2024, your P&L should cover March 1, 2023 through February 29, 2024. If your business uses cash basis accounting, ensure the P&L matches the figures you reported on your most recent business tax return, and attach a copy of the first two pages of that tax return if your adjuster requests additional verification. If your business is less than 12 months old, you may submit all available P&L statements alongside a CPA-signed projected revenue statement for the full 12-month period, but carriers will prioritize historical data over projections where available. Tab the gross revenue, cost of goods sold, fixed operating expenses, and net operating income line items on your P&L to reduce review time, and write a 1-sentence note next to any one-time expenses (like a one-off equipment purchase) that are not part of your regular operating costs.

Certified quarterly payroll tax schedule

Payroll is one of the largest eligible expenses covered under most business income policies, so carriers require third-party verified payroll records to confirm your claimed payroll costs are accurate. Certified schedules are the exact forms you submitted to the IRS (Form 941) and your state’s department of revenue, along with the official filing confirmation receipt from the tax agency. Handwritten payroll logs or internal payroll spreadsheets are not acceptable on their own, but you may attach them as supplementary documentation to break down pay for individual employees if you are only claiming payroll for full-time staff that were retained during the interruption period. If you pay 1099 independent contractors for regular, ongoing work that is critical to your business operations, you may include their 1099-NEC forms alongside your payroll tax schedules to prove those costs are regular operating expenses, but check your policy language first to confirm contractor payments are eligible for coverage. Organize your payroll schedules in chronological order in your claim folder, with a cover sheet that lists total payroll costs per quarter to make it easier for adjusters to cross-reference with your P&L.

Itemized operating expense receipt file

This file proves that the ongoing expenses you are claiming as part of your business income loss are costs you were obligated to pay both pre-loss and during the interruption period. Group receipts by expense category: rent or mortgage payments, utilities, software and cloud service subscriptions, equipment maintenance fees, regular insurance premiums, business loan payments, and common area maintenance fees. You do not need to submit receipts for individual expenses under $100 unless your carrier explicitly requests them, but you should keep all receipts stored in a separate subfolder in your claim file in case of a post-submission audit. Illustrative example: If your monthly internet and phone service costs average $275 pre-loss, you should include at least 6 months of bills to confirm that average, plus any bills you receive during the closure period to show you are still being charged for service even if you are not operating out of the property. Create a digital index for the receipt file that lists each expense category, total annual pre-loss cost, and the folder location of the corresponding receipts, so you can quickly locate any document the adjuster asks for during the review process.

Signed active lease agreement copy

If you lease your commercial property, your lease agreement confirms your ongoing rent and common area maintenance obligations, which are eligible for coverage under most business income policies. The copy you submit must be the full, unredacted document signed by both you (the tenant) and the property owner, and include all addenda related to rent increases, CAM fee adjustments, tenant improvement allowances, and early termination clauses. If your lease was renewed or modified within the 12-month pre-loss period, attach both the expired lease and the new active lease to show any changes in your monthly property-related expenses. If you own your commercial property outright, you may substitute the lease agreement with a copy of your most recent mortgage statement (if you have an outstanding mortgage) and your most recent property tax bill to prove your ongoing property-related operating costs. Tab the sections of the lease or mortgage document that list your monthly payment amount and any scheduled fee increases to eliminate the need for the adjuster to search the full document for relevant details.

Filed monthly sales tax return copies

Sales tax returns are third-party verified documents that confirm the gross revenue figures listed on your P&L, as they are filed directly with your state’s department of revenue. You will need to submit all monthly sales tax returns for the same 12-month pre-loss period used for your P&L, plus any returns you have filed for the months following the loss date to show your reduced revenue during the interruption period. If your business files sales tax on a quarterly basis instead of monthly, you may submit quarterly returns, but you will need to attach supplementary monthly sales reports (from your point of sale system or accounting software) to break down your revenue by month for the adjuster. If you operate in multiple states or local jurisdictions that require separate sales tax filings, include returns for every jurisdiction you filed in during the pre-loss period to confirm your total gross revenue across all locations. Double-check that the total revenue listed on each sales tax return matches the corresponding monthly revenue line item on your P&L to avoid processing delays or requests for additional documentation.

Pull your 12-month pre-loss profit and loss form from your business tax folder and cross-reference the monthly gross revenue line items against your filed sales tax returns to resolve any mismatches before assembling your full attachment packet.