A 1099-K lands in January, you look at the number, and it is thousands of dollars more than you remember earning. The first instinct is that the platform has made a mistake. Usually it has not, and the reason is boring: the box is a gross total, and your bank balance is a net one.
That distinction decides what you do next. A gross figure that looks too big is handled in how you report, with no correction needed. A form that lists payments that were never yours, or that carries the wrong taxpayer number, is a different problem with its own published steps. This piece separates the two and quotes the IRS wording for each, because the two paths really do end in different places.
Everything attributed to the IRS below comes from its pages 'Understanding your Form 1099-K' and 'What to do with Form 1099-K', the second of which it also points to as IRS.gov/1099khelp. This is general information and not tax advice.
Check first whether it is actually wrong
The IRS describes Form 1099-K as a report of payments you received for goods or services during the year from payment cards and from payment apps or online marketplaces, and says those organisations are required to fill it out and send copies to the IRS and to you, by January 31.
What it reports is the gross amount. Box 1a on the form is a gross amount of payment card and third party network transactions, which means the money customers handed over, counted before anything came out of it. These all come out after that figure is set:
- The platform's processing fee on every sale.
- Refunds and partial refunds you gave during the year.
- Chargebacks that went against you.
- Shipping the customer paid you, which still counts as money received.
- Sales tax the platform collected through your account, in the cases where it passes through your gross.
- Anything the platform withheld against a reserve or a negative balance.
So the sum to do before complaining is simple. Add your refunds, chargebacks and platform fees back to the money that reached your bank. If that lands on the figure in box 1a, give or take rounding, the form is right and you have nothing to correct. The fees and refunds are not lost: they are claimed as business expenses and returns on your return instead, which is where a gross-to-net difference is supposed to be reconciled.
It also helps to know the form can arrive from more than one place. If you took card payments through one processor and also sold on a marketplace, two issuers can each send a 1099-K, and the two together should match your year, not either one alone.
Payments from friends and family do not belong on it
One genuinely common fault is a payment app reporting money that was never a sale. The IRS is direct about this: money you received from friends and family as a gift or repayment for a personal expense should not be reported on a Form 1099-K, and 'These payments aren't taxable income.'
Its practical advice for the future is to label them at the time: 'Be sure to note these types of payments as non-business in the payment apps when possible.' A rent split or a dinner repayment sent as a goods-and-services payment is the usual way these end up counted.
Where the form does include them, the IRS's instruction is not to adjust the figure yourself but to ask the issuer for a corrected form: 'Ask for a corrected Form 1099-K that shows a zero amount' where the payments are not yours.
If it is wrong, contact the issuer and not the IRS
For a form that is wrong or that you should not have received at all, the IRS says to contact the issuer immediately, and tells you where to find them: check the Filer box in the top left corner of the form for the issuer's contact information. If you do not recognise the issuer, it says to contact the Payment Settlement Entity, the PSE, listed on the bottom left corner.
Then there is the line worth remembering before you spend an afternoon on hold: 'Don't contact the IRS. We can't correct your Form 1099-K.' Only the issuer can reissue it.
The IRS also asks you to keep the paperwork: keep a copy of the original form and all correspondence with the issuer for your records, and, if a corrected form does arrive, keep that with your records too, along with any correspondence with the issuer or PSE.
What to do when no correction arrives in time
Chasing a correction can take longer than you have. The IRS does not treat that as a reason to miss the deadline — 'Don't wait to file your taxes.' and 'File even if you can't get a corrected Form 1099-K.' — and it publishes what to do in each case.
Where the payee taxpayer number on the form is wrong, it says to report payments from the Form 1099-K and any sources of income on the appropriate tax return you normally file. Where the gross payment amount is wrong, it says to report the amount from your incorrect Form 1099-K in the entry space at the top of Schedule 1 (Form 1040), Additional Income and Adjustments to Income.
In both cases you are filing your real income and showing the IRS that you have seen the number it also received, rather than quietly ignoring a mismatch it can see from its side.
The form does not decide what you owe
It is worth being clear that none of this is about whether the income counts. The IRS's wording is that whether or not you receive a Form 1099-K, you must still report any income on your tax return, and that this includes payments for goods you sell, including personal items sold at a gain, and services you provide.
A missing 1099-K is not a gap in your obligations, and a 1099-K that is too big does not increase them. Your own records of what you sold, what you refunded and what the platform charged you are what your return is built from.
Keeping records you can reconcile from
The reason a gross figure feels like a shock is almost always that the only record of the year lives inside someone else's dashboard. If you are selling from a page of your own, keep the sale list where you can export it: a list of orders with the gross, the fee and any refund against each one turns next January's reconciliation into a few minutes of arithmetic.
If you sell through a OneSol page, the payment goes through your own Stripe, PayPal, Razorpay or Square account rather than ours, so the processor that issues your 1099-K is the one you already control, and your orders sit in your dashboard where you can download them as a CSV. Payments come with Pro. That does not change what any form says, but it does mean you can answer it from your own numbers.
This is general information about publicly published IRS guidance, not tax advice, and your own circumstances may differ. If a form is wrong by a large amount, or you are not sure which of the two cases above you are in, speak to a tax professional.