US Amazon FBA taxes start with one form — Form 1099-K — and one number that is wrong in most places you will read it. Checked 2026-08-21, the IRS states the federal threshold this way: “Third party settlement organizations (TPSOs) (payment apps and online marketplaces) are required to report payments on Form 1099-K when the total amount of payments you receive for goods or services through the platform exceeds $20,000 in more than 200 transactions.” Both conditions, not either. Amazon’s own 1099-K FAQ matches it. This guide covers what that form reports, when Amazon issues it, and how to bridge it to your books — it is orientation, not tax advice, and every position below is one a licensed accountant or tax adviser has to sign off on for your facts.
The Threshold, and Why Search Results Disagree
The current federal rule appears the same way on three IRS pages, all checked on 2026-08-21:
| Source (checked 2026-08-21) | Threshold as published | Page last reviewed |
|---|---|---|
| Understanding your Form 1099-K | “exceeds $20,000 in more than 200 transactions” | 28-Jun-2026 |
| Form 1099-K FAQs: General information | “exceeds $20,000 and the number of transactions exceeds 200” | 03-Apr-2026 |
| OBBB: what gig economy workers should know | “more than $20,000, and the total number of transactions is more than 200” | FS-2026-07, March 2026 |
The IRS attributes the current figure to a retroactive change: “The One, Big, Beautiful Bill retroactively reinstated the reporting threshold in effect prior to the passage of the American Rescue Plan Act of 2021 (ARPA) so that third party settlement organizations are not required to file Forms 1099-K unless the gross amount of reportable payment transactions to a payee exceeds $20,000 and the number of transactions exceeds 200.”
If you search this topic today you will still be shown a $600 figure, or a phased $5,000 / $2,500 / $600 schedule. None of those figures appear on any of the three IRS pages above as of 2026-08-21. The IRS pages checked do not narrate the history of those numbers or list the calendar years the reinstatement reaches back to, so this guide does not restate either; if the tax year matters to your filing, put the pages in front of a CPA.
Two qualifiers that change the answer for real sellers:
- Below the threshold, a form can still arrive. The IRS FAQ page states: “The federal reporting threshold of over $20,000 in payments and more than 200 transactions is a reporting requirement for TPSOs, but a TPSO may still send a Form 1099-K for payments for goods or services for amounts lower than the thresholds.”
- States are not bound to the federal number. Amazon’s 1099-K FAQ says you likely will not receive a form below the thresholds “unless U.S. state tax reporting requirements impose lower tax reporting requirement thresholds (consult a professional tax advisor to understand your state and federal tax obligations).” Neither the IRS pages nor Amazon’s page lists which states or which amounts. Your state revenue department is the authority there; this guide does not guess.
What Box 1a Actually Reports
Box 1a is a gross number, and the IRS is explicit that nothing has been netted out of it: “The gross payment amount (Box 1a) on Form 1099-K reports the total, or gross, dollar amount of reportable payment transactions. It doesn’t include adjustments for fees, credits, refunds, shipping, cash equivalents or discounts.”
Amazon says the same thing in seller language on its IRS Form 1099-K FAQ (checked 2026-08-21): “Per IRS regulations, the amounts listed on your Form 1099-K represent unadjusted gross sales, not actual bank transfers,” and “Unadjusted gross sales mean the total sales, unadjusted for fees or refunds — the amount the buyer paid for an order even if the order is later refunded.”
The worked example on that Amazon page is the clearest statement of what lands in the box:
| Line item (Amazon’s example) | Amount | In gross sales? |
|---|---|---|
| Item price | $100 | Yes |
| Merchant promotional discount | −$10 | Subtracted before gross sales is calculated |
| Shipping charge | $15 | Yes |
| Order total (gross sales amount) | $105 | This is what reaches Box 1a |
| Amazon fee | −$3.35 | Subtracted after gross sales is calculated |
And on refunds, Amazon is blunt: “Does the gross sales amount change if I refund an order? No.” — “When you make a sale, the order total becomes a permanent part of your unadjusted gross sales for the year.” A seller with heavy returns can therefore see a Box 1a far above anything that ever stayed in the business.
One line the sources do not settle: whether the sales tax Amazon collects under marketplace facilitator rules sits inside Box 1a. Amazon’s example itemises item price, discount, shipping and fee, and shows no tax line; the IRS pages checked do not address marketplace-collected tax at all. Confirm that one against your own form with a licensed accountant rather than against an article.
When Amazon Issues It and Where It Comes From
The IRS states the deadline for the copy sent to you: “They must also send a copy to you by January 31.” Amazon commits to the same date — “Amazon will provide your Form 1099-K on or before January 31 of the following year via electronic or physical mail delivery, depending on your selected preference”.
Three sourcing details from the same Amazon page decide whether your numbers will tie out at all:
- The form is wider than Seller Central. “The Form 1099-K is generated from your Selling on Amazon activity, Amazon Pay, Mechanical Turk (MTurk), and Flexible Payments Systems (FPS), plus Invoicing.”
- Multiple accounts are combined. “Amazon consolidates unadjusted gross sales across all seller accounts that share the same TIN.” Two storefronts under one EIN produce one form, not two.
- Non-US persons do not get one. “Form 1099-K is issued ONLY to U.S. persons for U.S. tax purposes.” Whether you are a US person for this purpose follows your tax interview answers — not where you ship from.
Seller Central’s own help articles on tax documents sit behind a login and returned a bot-challenge page rather than readable content when checked on 2026-08-21, so the quotations above are taken from Amazon’s publicly reachable 1099-K FAQ instead.
Reconciling the 1099-K to Your Books
Box 1a will not match your bank deposits, your Seller Central payments summary, or your profit-and-loss revenue line. That is expected, not an error. The bridge below is a reconciliation worksheet, not a tax position — the tax treatment of each line is a question for your accountant.
| Step | Line | Source of the difference |
|---|---|---|
| Start | Box 1a, unadjusted gross sales | Buyer-paid order totals, shipping included |
| Check | Boxes 5a–5l | “The sum of Boxes 5a–5l equals the amount reported in Box 1a” — use the monthly split to find the month that breaks |
| Less | Amazon fees | Referral, FBA, storage and advertising are subtracted after gross sales is calculated; see Amazon FBA fees and profit and Amazon referral fees |
| Less | Refunds issued | Never reduce Box 1a, always reduce your deposits |
| Note | Promotional discounts | Already removed before the order total, so do not deduct them twice |
| Separate | FBA reimbursements | Not “the amount the buyer paid for an order”, so they do not behave like sales — see Amazon FBA reimbursement |
| Timing | December / January | Invoicing is reported on transaction date while Date Range reports use funds-received date |
That last row is Amazon’s own explanation of the most common mismatch: “For invoicing orders, Amazon is required to report on the date of the transaction, while the Date Range reports in Seller Central are based on the date you received the funds into your account. Due to invoicing, you might see a difference in reported amounts month over month, or an overlap between December and January.”
A settlement-level connector — the category compared in best Amazon accounting software — splits each payout into sales, fees, refunds and tax so the gross line already exists in your ledger before the form arrives. On the reimbursement row, ReimburseOps is an independent self-serve auditing tool that reads an exported FBA reimbursements CSV and flags under-paid or inconsistently valued records; it is a free-tier-plus-$19/month subscription that files nothing on your behalf, so it changes what you are owed, not how any of it is reported.
No Form Does Not Mean No Tax
This is the single most expensive misreading of the threshold change, and the IRS answers it directly: “the Form 1099-K reporting threshold doesn’t affect whether payments are taxable or whether a tax return must be filed. All income, no matter the amount, is taxable unless the tax law says it isn’t – even if you don’t get a Form 1099-K.”
Amazon frames the form’s role the same way: “Form 1099-K is an informational document and does not determine the amount of tax owed.” A seller who cleared $14,000 across 130 orders in 2026 gets no form and still has the same filing obligation as one who cleared $40,000. What changes is how much the IRS can cross-check automatically, not what you owe. What you owe, and on which return, is a question for a licensed tax professional; this guide does not answer it.
Where Sales Tax Fits
Income tax and sales tax are separate systems that share a vocabulary, and mixing them is the second common error. Under marketplace facilitator legislation, Amazon calculates, collects and remits state sales tax on third-party orders in states where that legislation applies; Amazon documents this on its Marketplace Tax Collection help page, which returned a 503 to automated retrieval on 2026-08-21 and so is cited here by location rather than quoted.
What marketplace collection does not do is end every state-level obligation — registration, local taxes outside the legislation’s scope, and sales made off Amazon are all still yours to determine. Because that is a distinct subject with its own decision tree, this guide hands it off rather than summarising it: see Amazon FBA sales tax: what you need to know for the collection side. Sellers registered in Europe face an unrelated regime again — start at VAT thresholds by country.
Common Mistakes
- Reporting Box 1a as revenue. It is buyer-paid gross including shipping, before fees and before refunds.
- Assuming no form means nothing to report. The threshold governs Amazon’s filing duty, not your obligation.
- Netting refunds twice. Refunds are already out of your deposits and never out of Box 1a — deduct them once, in the right place.
- Expecting the calendar months to line up. Invoiced orders report on transaction date; your payouts do not.
- Treating a second storefront as a second form. Accounts sharing a TIN are consolidated.
- Taking a threshold number from a search result. The figure circulating most widely in 2026 is not the one on the IRS pages. Check the page, note the date, and let a CPA apply it.
Frequently Asked Questions
Do I owe tax if Amazon never sent me a 1099-K?
The IRS position is that the threshold “doesn’t affect whether payments are taxable or whether a tax return must be filed.” Not receiving a form changes Amazon’s filing duty, not yours. How you report it is a matter for a licensed tax professional.
Why is my 1099-K larger than what Amazon deposited?
Because Box 1a is unadjusted. Amazon fees are subtracted after the gross figure is set, and refunded orders stay in it permanently. The gap between the form and your bank is the fee-and-refund stack, not a mistake.
I have two seller accounts — will I get two forms?
Amazon states that it “consolidates unadjusted gross sales across all seller accounts that share the same TIN.” Different TINs, different forms.
Does the sales tax Amazon collects for me count in Box 1a?
Neither the IRS pages nor Amazon’s 1099-K FAQ checked on 2026-08-21 states this either way, and Amazon’s worked example shows no tax line. Do not assume — confirm against your own form and your Marketplace Tax Collection report with an accountant.
What to Do Next
Pull last year’s form and its Boxes 5a–5l alongside your Date Range reports and find the month that does not tie; that one month usually explains the whole year. Get the fee, refund and reimbursement rows landing in your ledger automatically rather than in a spreadsheet each January — that is the job Amazon accounting software exists to do. Then hand the reconciled figures to a professional: the point at which software stops and judgement starts is mapped in best ecommerce accountants for Amazon sellers. Everything above is a reading of published IRS and Amazon pages as of 2026-08-21; none of it is a substitute for advice from a licensed accountant or tax adviser who knows your entity, your states and your numbers.