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What you need to reply quickly and completely to your letter using our Respond to Department Notice online service:
- a digital copy—scanned or uploaded from your phone—of the documentation below, and
- an Individual Online Services account. (Log in or create an account.)
| You must provide all of the following | Notes | |
|---|---|---|
| copy of your Schedule C, Profit or Loss from Business, from your federal income tax return for the tax year noted on your letter | |
 | any license, registration, or certification that you need for your business | Examples include credentials for taxicab drivers, cosmetologists, and health- and food-service workers. |
| summary documents that you used to calculate the income and expenses that you reported on your tax return | These documents must cover the entire year and may include:
|
| any federal Forms 1099-K, Payment Card and Third Party Network Transactions you received | Form 1099-K is a report of payments you got for goods or services during the year from:
|
| any federal Forms 1099-NEC, Nonemployee compensation, you received | You must also include copies of employment contracts as well as bank statements or canceled checks to support the income reported on the 1099-NEC. |
| detailed documentation, such as sales slips, invoices, bank statements, or receipts supporting your business income and expenses | Send copies of the actual documents from the time you earned the money or incurred the expense; estimates are not acceptable. Also send:
|
| Form 8829, if you are claiming business use of your home | You must include documentation that supports the basis for your calculations. |
| questionnaire you received with your letter | You must complete all questions. |
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