How do I report marketplace transactions on my state sales tax return?
Marketplace-facilitated sales get reported as gross sales first, then deducted — never simply excluded. Your return should show all channels combined in gross sales, with a dedicated marketplace deduction line, so net taxable equals only your direct-channel sales. States match your return against Amazon 1099-K data; a gross sales figure that omits Amazon will trigger a notice.
What you’ll need: Your Amazon (or Etsy/Walmart) sales report for the state · Your own-channel sales report · Your state return form or filing portal
Marketplace-facilitated sales don’t get excluded from your return, they get reported and then deducted. States want to see your total gross activity, then subtract out the portion the marketplace handled. Sellers who simply leave Amazon sales off their return create a mismatch that triggers notices.
Step 1: Understand the structure of a multi-channel return
A state sales tax return for a seller with marketplace and direct sales typically looks like this:
| Line | What it covers |
|---|---|
| Gross sales | All sales into the state — Amazon, Shopify, Etsy, everything |
| Deduction: marketplace-facilitated sales | Sales where the marketplace collected and remitted |
| Deduction: other exempt sales | Exempt products, resale, etc. |
| Net taxable sales | What’s left after deductions |
| Tax due | Net taxable sales × applicable rate |
The marketplace sales appear twice: once in gross sales, once as a deduction. The net result is zero tax liability on those transactions, but the gross activity is reported.
Step 2: Pull your marketplace sales report for the state
For Amazon:
- Log in to Seller Central
- Go to Reports → Tax Document Library
- Select your Sales Tax Report for the relevant period
- Filter or export by state, you want total gross sales into the state that Amazon facilitated
- This figure goes on the “marketplace-facilitated sales” deduction line of your return
For Etsy:
- Go to Shop Manager → Finances → Payment Account
- Download your Monthly Statement or use the Download Data tool
- Filter transactions by ship-to state
- Etsy also provides an annual sales summary by state in your tax documents
For Walmart Marketplace and others: each platform has an equivalent sales report in its seller portal. Pull total facilitated sales by state for the period.
Step 3: Pull your own-channel sales for the state
From Shopify, WooCommerce, or your ERP: pull all orders shipped to the state during the filing period. This is your direct (non-facilitated) gross sales figure.
If you use a sales tax platform, it should have this broken out by channel already. If not, export your order data and filter by ship-to state.
Step 4: Combine into the return
Gross sales = Amazon facilitated sales + your own channel sales (+ any other channels)
Marketplace deduction = Amazon facilitated sales (what Amazon collected on your behalf)
Net taxable sales = your own channel sales (adjusted for any product exemptions)
Tax due = net taxable sales × state + local rate
The filing portal in most states walks you through these lines explicitly. If your state has a specific line labeled “marketplace facilitator sales” or “sales by a marketplace facilitator on your behalf,” use it. If the return doesn’t have a dedicated line, use the “other deductions” or “non-taxable sales” line and note it as marketplace-facilitated.
Step 5: Reconcile your Amazon 1099-K against the return
Amazon issues a 1099-K that shows your gross Amazon sales by state. States have access to 1099-K data and use it to cross-reference returns. If your 1099-K shows $180K in Ohio sales and your Ohio return shows $15K in gross sales because you left the Amazon amount off, you will get a notice.
The gross sales figure on your return should roughly match or exceed the 1099-K figure for that state (exceed it if you also have direct channel sales in the state).
If there’s a discrepancy, document why. The most common legitimate discrepancy: the 1099-K is on a calendar-year basis but your return covers a different period.
Related: How do I reconcile my Amazon 1099-K with my sales tax filings?
The most common filing errors for multi-channel sellers
| Error | What goes wrong |
|---|---|
| Excluding marketplace sales from gross entirely | Return doesn’t reconcile with 1099-K; triggers notice |
| Reporting marketplace sales as “exempt” without a deduction code | State may not recognize the deduction; treats the sales as taxable |
| Using total Amazon revenue (including fees and refunds) instead of gross sales | Overstates or understates the deduction |
| Not filing in states where you have FBA nexus but Amazon handles collection | Missing return obligation triggers delinquency |
Looking for more answers on this topic?
Browse Marketplace Facilitators & Multi-Channel