For four years the 1099-K reporting threshold lurched from $20,000 down toward $600 and back again, and millions of casual and side-hustle sellers still aren't sure whether a form is coming. This calculator answers two questions at once: whether you'll get a 1099-K under the current rules, and — more importantly — how to turn that gross-sales form into the tax you actually owe.

What the threshold actually is now

After the American Rescue Plan Act tried to drop the threshold to $600, the IRS delayed it repeatedly and announced a phase-in — $5,000 for 2024, $2,500 for 2025, $600 for 2026. Then the One Big Beautiful Bill Act, signed in July 2025, scrapped all of that and restored the old $20,000-and-200-transaction threshold for 2025 and future years, retroactive to 2022.

So for tax years 2025 and 2026 a payment app or marketplace only has to send you a federal 1099-K when your gross payments exceed $20,000 and you have more than 200 transactions — both conditions. Cross one but not the other, and no federal form is required. But watch your state: several never adopted the rollback and issue their own 1099-K at far lower levels — Maryland, Massachusetts, Virginia, Vermont, and D.C. at $600, Illinois over $1,000 with four or more sales, New Jersey at $1,000, Arkansas at $2,500.

A 1099-K reports gross — you're taxed on profit

The biggest trap isn't the threshold; it's what the form says. A 1099-K reports the gross amount processed for you, not your profit. If you sold $8,000 of sneakers that cost you $5,000 with $1,200 in fees, the form shows $8,000 — but you're taxed on the $1,800 left over.

For a reseller, that profit is business income: you report it on Schedule C, deduct your cost of goods and fees, and owe income tax plus self-employment tax. Self-employment tax is 15.3% on about 92% of your profit and it surprises people — on that $1,800 it's roughly $254, on top of about $368 of income tax at a 22% bracket, for around $622 total. Crucially, you owe this whether or not a 1099-K is issued. The form is just paperwork; the income was always taxable.

Selling your own stuff is different — and usually tax-free

If you're clearing out your closet rather than running a business, the math flips. Personal items sold at a loss — for less than you originally paid, which is most used goods — produce no taxable income, and the loss isn't deductible. The catch is reconciliation: if a 1099-K reports those sales, you report the gross on Schedule 1, line 8z, and back out the same amount on line 24z so the IRS doesn't treat the whole gross as income.

Sell a personal item for more than you paid — a rare collectible, say — and the gain is taxable (generally as a capital gain), though still with no self-employment tax. The honest line between "business" and "personal" comes down to your intent and how regularly you sell for profit. This tool gives a solid federal estimate, but 1099-K rules and state thresholds keep changing and your facts matter, so confirm the current year's rules and your treatment with a tax professional before you file.