Who issues 1099-K
Payment settlement entities — credit card processors, payment apps (PayPal, Venmo, Cash App for business accounts), marketplaces (eBay, Etsy, Amazon, Uber), and third-party networks — issue Form 1099-K to recipients of payments. The form reports gross transaction amounts before fees, refunds, or chargebacks.
Reporting threshold
The federal reporting threshold has been in flux. Statute sets it at $600 with no transaction count, but the IRS has phased the implementation: $20,000 and 200 transactions for 2023, $5,000 for 2024, $2,500 for 2025, and $600 (the statutory level) for 2026 and after. Some states set lower thresholds independently of the federal rule.
Recipient reporting
Sole proprietors include 1099-K amounts in Schedule C gross receipts. The challenge is avoiding double-counting: the same sale that generates a 1099-K from the processor may also be reflected in cash receipts. Reconcile carefully — IRS underreporter notices cite 1099-K data heavily.
Personal payments
Personal-use payments (splitting a dinner bill, repaying a friend) should not appear on Form 1099-K because the recipient should be using a personal account. If they do appear, report the gross on Schedule 1 line 8z and back them out as "personal item sold at no gain" on line 24z. This is the IRS's recommended workaround for marketplace overreporting.
Adjustments
The 1099-K reports gross amounts. Subtract refunds, returns, fees, and chargebacks separately on Schedule C — usually as a "Returns and allowances" line and individual expense lines for processor fees. Document the math so the gross 1099-K still ties to your books.
Penalties for late or missing filings
Late or missing filings of Form 1099-K, Payment Card and Third Party Network Transactions draw distinct penalties depending on the form: failure-to-file (5% per month, capped at 25%), failure-to-pay (0.5% per month), failure-to-deposit for payroll forms (graduated based on lateness), failure-to-file information returns (per-return penalty that scales with size and lateness), and accuracy-related penalties (20% of underpayment for negligence or substantial understatement). The dollar amounts are not trivial. Calendaring the form's deadline, setting up an electronic reminder a week in advance, and using a payroll or tax-prep service that auto-files are the cheapest defenses against accidental late filings.