Reselling Guides
1099-K Reseller Guide: What to Do When One Arrives
A 1099-K reseller guide for the day the form lands: check it, fix errors, reconcile the gross to your records, and report it on Schedule C the right way.
The email comes in late January with a subject line about a tax document, and inside is a number that looks nothing like the money you remember keeping. That is the moment most sellers start searching. This 1099-K reseller guide skips the threshold debate and covers what to actually do with the form once it is sitting in your inbox: what to check, who to call when it is wrong, and how the number gets from the form to your return without being taxed twice or taxed on money you never kept.
This is general information and not legal or tax advice, so check your own facts with a tax professional or the IRS before you file.
Why the 1099-K reseller form shows up at all
Payment apps and online marketplaces file Form 1099-K with the IRS, and the IRS says they must also send a copy to you by January 31. The federal trigger is payments for goods that exceed $20,000 in more than 200 transactions in a calendar year. If you want the full picture of where that line sits and which states set a lower one, our breakdown of the eBay 1099-K threshold covers it.
The part that matters for this post: the IRS gets the same numbers you get. Your return needs to account for them, one way or another.
Where to find the form on each platform
Most marketplaces deliver electronically now, so the paper copy you are waiting for may never come.
| Platform | When | Where it lives |
|---|---|---|
| eBay | Issued by January 31 | Electronic by default, with an email when it is ready to download. You have to opt out of electronic delivery to get one mailed. |
| Poshmark | By January 31, per the IRS rule | Account Settings, then Tax Documents, on the web or mobile web only, not the app |
| Any other platform | By January 31, per the IRS rule | Check its help center for a tax documents page |
If you sell in more than one place, expect more than one form. The IRS says plainly that accepting payments on different platforms can mean more than one Form 1099-K. Each one covers only that platform's payments.
Step one: check two things before anything else
The IRS tells recipients to verify two items on the form: your taxpayer ID number, and the gross payment amount in Box 1a.
The ID check is quick. Make sure it is your SSN or EIN and not a typo or someone else's.
The Box 1a check takes your records. Pull your sales report from the platform for the same calendar year and compare. Remember that the box is gross. eBay describes the figure as one that does not exclude credits, discounts, fees, or refunds, so it will run higher than your payouts. A higher number is expected. A number that does not match the platform's own sales report, or that includes sales that were not yours, is a problem.
When the 1099-K is wrong
Look at the top left corner of the form, under Filer. That is the company that issued it, with its contact information, and the IRS says to contact the issuer immediately when something is off. eBay's own page says to contact them for instructions on providing a Form W-9 and getting a corrected 1099-K.
Two pieces of advice from the IRS are worth holding onto here:
- Keep a copy of the original form and every message you trade with the issuer.
- Do not hold your return waiting on a correction. The IRS page has a short set of steps for filing when a corrected form never arrives, including where to enter an incorrect gross amount on Schedule 1.
Reconciling the gross to what you actually made
A reseller who buys inventory to sell is running a business, and the IRS says a sole proprietor should report Form 1099-K payment information on Schedule C. That is where the big number shrinks to a fair one.
Schedule C is built for it. Line 1 is gross receipts, line 2 is returns and allowances, and line 4 is cost of goods sold. The Schedule C instructions describe a sales return as a cash or credit refund you gave a customer who sent something back, which covers a lot of the gap between Box 1a and your bank deposits.
Here is how the pieces line up for most resellers:
| What is inside Box 1a | Where it gets handled |
|---|---|
| Item sales and the shipping buyers paid | Gross receipts, line 1 |
| Refunds on returned orders | Returns and allowances, line 2 |
| What you paid for the inventory that sold | Cost of goods sold, line 4 |
| Platform fees and shipping labels you bought | Expense lines further down Schedule C |
The thing that makes this easy is a record of cost for every item. Without one, line 4 is a guess, and a guess is hard to defend. Our post on the reselling spreadsheet walks through the columns worth keeping, and the reseller tax deductions guide covers the expense side.
Several forms, one business
If eBay, Poshmark, and Mercari each send a form, they are all receipts from the same reselling business. They do not each need their own Schedule C. The IRS asks you to use your records to sort out what actually needs to be reported and to avoid counting the same transaction twice across a 1099-K, a 1099-NEC, or a 1099-MISC.
That last point catches people who get paid through PayPal or another app for some of the same sales a marketplace already reported. Match transactions to orders, not totals to totals.
When some of it was your own stuff
Plenty of resellers start by clearing out their own closet, and those sales can land on the same form as inventory sales. The IRS treats a personal item sold for less than you paid as having no taxable gain. Its 1099-K FAQ offers two ways to report that: the entry space at the top of Schedule 1, or Form 8949 and Schedule D.
Separating personal sales from business sales on one form only works if your records already show which was which. Tag personal items when you list them, and the sorting in January takes minutes instead of a weekend.
No form is still a filing
Most part-time sellers never see a 1099-K, and that does not get them out of reporting profit. The IRS is explicit that income gets reported whether or not a form arrives. We cover the rest of that in do resellers have to pay taxes, including self-employment tax and quarterly estimates.
Common questions
What do I do when I get a 1099-K from eBay?
Check that your taxpayer ID and the Box 1a gross amount are correct against your eBay sales report. If you buy items to resell, report the payments on Schedule C, then subtract returns, cost of goods sold, fees, and shipping. Keep a copy of the form with your records.
Do I pay tax on the full amount on my 1099-K?
Not if you report it correctly. Box 1a is a gross figure that includes fees, refunds, and shipping. On Schedule C you start from gross receipts and subtract returns, cost of goods sold, and business expenses, so the tax follows your profit.
What if my 1099-K is wrong?
Contact the company listed under Filer in the top left corner of the form and ask for a corrected one. Keep the original and all your correspondence. If the correction does not arrive in time, do not delay your return; the IRS has steps for filing with an incorrect form.
Do I need a separate Schedule C for each 1099-K I get from eBay and Poshmark?
No, not if they are the same reselling business. Each form reports only that platform's payments, and together they make up your gross receipts. Use your records to make sure no single sale gets counted twice.
Get the records right before January
The form is only scary when your records are thin. The sellers who shrug at a 1099-K are the ones who logged cost, sale price, fees, and shipping on every item as it sold. Building that habit, and the rest of a reselling system that holds up at tax time, is what we work through inside The Income Lab.
Sources: IRS, Understanding your Form 1099-K, What to do with Form 1099-K, Form 1099-K FAQs: common situations, Instructions for Schedule C; eBay Seller Center, 1099-K and tax withholding FAQs; Poshmark Support, How do I download my Form 1099-K. Hero image: IRS Schedule C (Form 1040), 2026, a U.S. government work in the public domain.
