You Got a 1099-K. Here Is What to Do Next

First, do not panic: a 1099-K is an information return, not a bill. It reports the gross payments a marketplace sent you, and a copy went to the IRS, but it says nothing about what you owe. What you owe depends on your income after the costs your situation allows, which can be far below the gross figure on the form. Here is how to go from the number on the paper to the number on your return. Once you know whether you are reporting as a business or a hobby, run the 1099-K Checker on this site to sketch the tax as you work through the steps.

Step 1: read the number for what it is

The dollar figure in Box 1a is GROSS payments for the year, before a single cost comes out. That gross can include platform fees, the shipping the buyer paid, and refunds you later issued, and on some platforms the sales tax it collected (check your platform's statement; eBay, for one, excludes it). None of that is profit. So the very first mental move is to stop treating the 1099-K total as income. It is the top of the funnel, and your taxable profit is what is left at the bottom.

Step 2: check whether it should have come at all

A form is issued when your activity crosses a reporting threshold, and that threshold has moved several times in recent years. For 2026 the federal threshold is over $20,000 and more than 200 transactions on one platform (both must be exceeded), restored by the One Big Beautiful Bill Act. Two cautions: several states set their own, lower thresholds, so you can receive a form well under the federal figure; and the threshold governs the FORM, not the tax. Income you earned is reportable whether or not a form was sent. If the form looks wrong, for example it double-counts or belongs to someone else, contact the issuer for a correction rather than ignoring it.

Step 3: reconcile the gross against your own records

This is the step that saves money. Pull your own sales records for the year and reconcile them to the gross on the form, then list what comes out of that gross: what you paid for the items (your cost basis), platform and payment fees, shipping labels you bought, refunds, and other selling costs. How much of that list you can use depends on your situation. A business deducts all of it on Schedule C. A hobby subtracts the cost of the items it sold, but its fees, shipping, and other expenses are not deductible. For personal items, what each one originally cost is what shows whether it sold at a loss or a gain. Either way, the reconciliation is your evidence. Keep it with your tax file.

Step 4: put it in the right place on the return

Where the income lands depends on which of three situations your sales fall into, the one distinction that changes everything downstream:

A business. If you are selling to make a profit, with regularity and effort, it goes on Schedule C: gross receipts on top, your reconciled costs as expenses, and the net profit flows to your 1040 and to Schedule SE for self-employment tax. Which side of the line you are on is a facts-and-circumstances test, covered in hobby or business.
A hobby. If you sell goods from an activity you pursue for enjoyment rather than profit, report the income on Schedule 1 as income from an activity not engaged in for profit (line 8j on the 2024 and 2025 forms). The cost of the goods you sold reduces that income, but other hobby expenses, such as fees and shipping, have not been deductible since 2018, and no self-employment tax applies.
Personal items. If you were clearing out your own closet or garage, selling things you bought for personal use, that is neither a hobby nor a business. A gain on an item goes on Form 8949 and Schedule D, and there is a specific way to report items sold at a loss so you are not taxed on money that was never income. See 1099-K for personal items sold at a loss.

Where this fits

This page is the "now what" after a form arrives. To check whether a platform's numbers even cross the reporting threshold and to estimate self-employment tax on a business profit, use the 1099-K Checker. To settle the business-or-hobby question that decides how you report, read hobby or business, and for the year-by-year threshold history, the 2026 1099-K threshold explained. Figures on this page verified 2026-09-23.

1099-K questions, answered

Is a 1099-K a tax bill?: No. A Form 1099-K is an information return, not a bill. It reports the gross payments a marketplace or processor sent you during the year, and a copy goes to the IRS. It does not tell you what you owe. Your tax depends on your income after the costs your situation allows: a business subtracts its item costs and selling expenses, a hobby subtracts only the cost of the items it sold, and personal items sold at a loss leave nothing taxable.
Why is the number on my 1099-K higher than what I made?: Because the 1099-K reports GROSS payments, before anything is taken out. Platform fees, shipping the buyer paid that went to the label, and refunds you issued can all be baked into that gross figure, and on some platforms so can the sales tax it collected (eBay, for one, excludes it). Your job at tax time is to start from the gross and subtract your real costs to get to the profit that is actually taxable.
Do I still report the income if I did not get a 1099-K?: Yes. The reporting threshold decides whether a FORM is issued, not whether income is taxable. For 2026 the federal threshold is over $20,000 and more than 200 transactions on one platform, but taxable income is taxable whether or not a form was sent, and several states set lower thresholds. If your selling is a business, report it regardless of any form.
Where does the 1099-K income go on my return?: It depends on which of three situations you are in. A business reports the income and its deductible costs on Schedule C, and the net profit flows to your 1040 and to Schedule SE for self-employment tax. A hobby reports its income on Schedule 1 as income from an activity not engaged in for profit (line 8j on the 2024 and 2025 forms), with no self-employment tax. Selling your own personal items is neither: a gain goes on Form 8949 and Schedule D, and there is a specific way to report items sold at a loss so you are not taxed on money that was never income. The hobby-or-business guide covers how to tell a hobby from a business, and the guide on personal items sold at a loss covers that case.