If you get paid through PayPal, Venmo, a card processor, or an online marketplace, the IRS may receive a Form 1099-K showing what those platforms paid you. When that amount does not match your tax return, the IRS notices. The result is often a letter proposing more tax, interest, and sometimes penalties.
What Form 1099-K is
Form 1099-K reports payments you received through payment apps, online marketplaces, and card processors. The company sends one copy to you and one to the IRS.
Under current law, these platforms generally must issue the form only when you receive more than $20,000 and more than 200 transactions in a year. The One Big Beautiful Bill restored this threshold retroactively, after years of planned lower limits.
The threshold only decides when the platform must send the form. Business income is taxable whether or not you receive a 1099-K.
Why the IRS sends a CP2000 notice
The IRS automatically compares what third parties report, such as 1099-K, 1099-NEC, and W-2 forms, with what you reported. When the numbers don’t match, it can send a CP2000 notice.
A CP2000 is not a bill yet. It is a proposal to change your return. Common reasons include:
- Business income from a 1099-K that was left off the return.
- Income that was reported, but under a different line or business name, so the IRS can’t match it.
- Personal payments, such as reimbursements from friends or family, mixed with business payments on the same account.
- Expenses that reduce the income but were never claimed.
You have a short deadline
You generally have 30 days from the date on the notice to respond (60 days if you live outside the U.S.). If you don’t respond, the IRS can move forward and send a Statutory Notice of Deficiency, a formal step toward assessing the tax. Interest keeps growing while the issue is open.
Your options
The notice includes a response form. Depending on your situation, you can:
- Agree and sign the form. If you can’t pay in full, payment plans may be available.
- Disagree with a signed explanation and documents, for example, records showing the income was already reported or that some payments were personal.
- Partially agree, when part of the income is correct but there are expenses or other items the IRS did not consider.
The proposal is based only on what the IRS sees. A well-documented response can reduce or eliminate the proposed amount.
Get help before you answer
What you send in response matters. If you received a CP2000 or another IRS letter about income from payment apps or online sales, schedule a confidential consultation. As an Enrolled Agent, Nora Riano is authorized to represent taxpayers before the IRS and can review the notice, your records, and your options before the deadline.