What a 1099-K reports
A 1099-K reports the gross payment volume a marketplace or payment processor processed on your behalf during the year — total sales revenue collected through that platform, before any deductions. It is issued by the marketplace/payment processor to both you and the IRS once you cross the applicable reporting threshold for the year.
The reporting threshold for who receives a 1099-K has changed multiple times in recent years and continues to be subject to legislative and IRS guidance updates — do not assume a specific dollar figure or transaction count is currently in effect. Confirm the current threshold with the IRS or a tax professional rather than relying on a number that may be out of date by the time you read this.
Why gross revenue is not your taxable income
This is the single most common point of confusion: the number on your 1099-K is not your profit and is not, by itself, what you owe tax on. Your actual taxable income is that gross revenue minus your legitimate business expenses — cost of goods, marketplace fees, advertising spend, shipping costs, and other deductible business costs. A seller who only looks at the 1099-K figure without netting out expenses will dramatically overstate their tax liability.
To make the disconnect concrete: a seller might have $150,000 of gross payment volume reported on a 1099-K, but after cost of goods sold, marketplace referral and fulfillment fees, advertising spend, packaging, and other deductible expenses, their actual net profit — the number that flows into their taxable income — could be a fraction of that. The 1099-K figure is a volume report, not a profitability report, and it isn't meant to be read as one.
What's included in "gross payment volume"
Exactly what counts varies by platform, which is one reason the figure sometimes doesn't cleanly match your own sales total. Commonly included:
- The full sale price of items sold, including shipping charged to the customer.
- Sales tax collected, in some cases (even though that tax was passed through to the state, not kept by you).
- Payments processed regardless of whether the underlying order was later refunded (the refund is generally reflected separately, not by reducing the reported gross figure).
This is exactly why the 1099-K number can look larger than what actually landed in your bank account, even before considering fees.
What to do when you receive one
Keep it for your records and reconcile it against your own sales records — the 1099-K figure should be traceable back to your books, though small differences can arise from timing (payments processed in one calendar year for orders placed near year-end) or from what specifically counts as "gross payment volume" for that platform. Provide it to your tax preparer along with your full expense records, not on its own.
A simple reconciliation approach:
- Pull the platform's own annual sales summary report (not just the 1099-K) — most marketplaces provide a more detailed breakdown of gross sales, refunds, fees, and tax collected.
- Compare the summary's gross sales figure against the 1099-K gross amount. They should be close; a mismatch is usually a timing or inclusion-definition issue, not an error worth panicking over, but it's worth understanding rather than ignoring.
- Separately total your deductible expenses for the year (fees, COGS, shipping, ads, software, etc.) from your bookkeeping records, not from the 1099-K, since the 1099-K doesn't include expenses at all.
- Hand your tax preparer both the 1099-K(s) and your expense totals — never just the 1099-K alone.
If you sell across multiple marketplaces
You may receive a separate 1099-K from each platform that meets the reporting threshold — your total taxable business income is the combination of all of them (netted against expenses), not any single 1099-K in isolation. See Income Tax Basics for Ecommerce Sellers for what to track through the year to make this reconciliation straightforward.
What if the 1099-K looks wrong?
If the gross amount on your 1099-K doesn't match your own records by more than a small timing discrepancy, contact the issuing platform directly — most have a support process for correcting 1099-K figures, and a corrected form is generally issued if a genuine error is found. Don't just file your taxes based on your own number and ignore the mismatch; the IRS receives a copy of the original 1099-K and a large unexplained gap between what you report and what was filed against your SSN/EIN can trigger a matching inquiry.
Common mistakes
- Reporting the 1099-K gross figure as taxable income on a tax return without subtracting business expenses.
- Not reconciling the 1099-K against your own sales records and missing a data or timing discrepancy.
- Assuming a 1099-K not received means no income needs to be reported — you're required to report all business income regardless of whether a 1099-K was issued for it.
- Forgetting that refunds, returns, and chargebacks affect your actual income even when they're reflected differently (or not clearly reflected) on the 1099-K itself.
FAQs
I didn't receive a 1099-K from a marketplace I sold on. Does that mean I don't owe tax on that income? No. You're required to report all business income whether or not a 1099-K was issued — the threshold for issuing the form doesn't change your underlying tax obligation.
Why is my 1099-K amount higher than what I actually received in payouts? Because it reports gross payment volume before fees, and in some cases before refunds are netted out — payouts are net of fees and refunds, so a gap between the two figures is normal and expected, not evidence of an error.
Can I ask the marketplace to correct a 1099-K I believe is wrong? Yes — most platforms have a process for this. Reach out through official seller support with your own records ready to compare.