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Reporting

Form 1099-K for online sellers: thresholds, state rules, and reconciling gross to net

The federal $20,000 and 200-transaction threshold, states with lower thresholds, and how to reconcile marketplace gross payments to taxable profit.

Form 1099-K reports the gross payments a marketplace or payment processor settled to you. That figure is the starting point for calculating your income, not a measure of profit.

The federal threshold

After several years of delays and scheduled reductions, the 2025 law restored the original federal threshold. A 1099-K is required when gross payments exceed $20,000 and there are more than 200 transactions in the year. Card payments settled by a merchant processor have no federal minimum, though many processors, including Stripe and Square, issue forms only above the $20,000 and 200-transaction level, or at a lower level in some states.

All income is taxable whether or not you receive a form.

If your sales or FBA inventory have spread into new states, Summer Associates can run a state-by-state nexus review.The first consultation is free, with no obligation.

Book a free consultation

States with lower thresholds

State Threshold
District of Columbia, Maryland, Massachusetts, Vermont, Virginia $600
Illinois Over $1,000 and at least 4 transactions
New Jersey $1,000
Arkansas $2,500

These are examples, not a complete list, and state rules change, so check your state's current threshold. Marketplaces often issue forms to sellers in these states at the lower amount, and the state receives a copy.

Connecticut has no lower threshold of its own. Platforms must send its Department of Revenue Services a copy of every federal 1099-K they file for a payee located in Connecticut, within 30 days of filing with the IRS, so the state sees the same gross figure the IRS does.

Key numbers: federal 1099-K over $20,000 and over 200 transactions · $600 in several states · Form 1099-NEC threshold $2,000 for 2026 payments.

Reconciling gross to net

The IRS matches 1099-K totals to your return, so bridge the difference with clear categories:

  • Refunds and returns issued to customers.
  • Marketplace fees, including referral, FBA fulfillment, storage, and advertising fees.
  • Shipping collected versus shipping paid.
  • Sales tax collected by the marketplace, which some processors include in gross.
  • Chargebacks and disputes.

Report the 1099-K gross on your return and deduct fees, refunds, and costs separately, so the IRS's matching program sees the full amount.

Personal sales on platforms

If you sold personal items at a loss, such as old furniture on eBay, the sale is not taxable income. Report it so it nets to zero, and keep records showing what you paid.

A worked example

An Etsy seller receives a 1099-K for $186,000. Her books show $9,400 of refunds, $27,800 of Etsy fees and ads, $14,200 of sales tax included in gross by the platform, and $41,000 of cost of goods sold. Her net profit is $93,600, not the $186,000 shown on the form.

Common mistakes

  1. Reporting only net deposits, which triggers an IRS mismatch notice.
  2. Ignoring a payment app's 1099-K because a marketplace also reports your sales, or counting the same sales twice. Reconcile both forms to your books.
  3. Missing state-level forms in lower-threshold states.

How Summer Associates helps

Summer Associates' e-commerce team reconciles every 1099-K to your books, documents the bridge, and responds to IRS matching notices if they arrive.

This guide is general education based on federal and Connecticut law as of 2026-11-15. State rules differ and facts matter. Before acting, get advice for your situation from Summer Associates or another qualified advisor.

Find out where you owe sales tax and what you could keep.

In a consultation, we look at your sales by state, Forms 1099-K, and last return, estimate whether an S corp and Solo 401(k) could lower your tax, and tell you where you may need to register.

Book a free consultation or call (203) 327-4311 The first consultation is free, with no obligation.
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