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Amazon FBA is the side hustle with the most moving parts at tax time. You’re buying physical inventory, paying a long list of Amazon fees, shipping products into warehouses, and collecting sales tax in states you’ve probably never visited. It’s real income, and it comes with a unique set of deductions only product sellers get.
Here’s the good news: Amazon FBA taxes follow the same basic shape as every other side hustle’s, just with one big addition, cost of goods sold. Report your income, track your inventory costs, claim the seller-specific deductions, set aside a realistic chunk, and stay on top of your quarterly estimated tax payments. Here’s the full picture for the 2026 tax year.
Quick disclaimer: This article is general information to help you understand the rules, not personalized tax or legal advice. Tax laws change, and your situation is unique, so it’s always worth a quick chat with a CPA or tax professional if you’re unsure.
New to side hustle taxes entirely? The pillar guide Side Hustle Taxes 2026 covers the fundamentals every hustler needs, including how much to set aside and what you can deduct. This post gets into the FBA-specific details.
Yes, Amazon FBA Income Is Taxable
Let’s start with the part nobody likes. Every dollar you earn from selling products on Amazon is taxable income, the same as a paycheck. This is the foundation of Amazon FBA taxes: every dollar counts as income first, deductions come after. That includes your product sales, and it also includes things a lot of sellers forget, like Amazon reimbursements for lost or damaged inventory.
The key rule: you must file a tax return if your net self-employment earnings are $400 or more in a year. Net earnings means your profit, what’s left after your allowed business expenses. For an FBA seller, that bar is cleared fast.
Because no employer withholds from your sales, you’re responsible for both halves of your Social Security and Medicare, the self-employment tax, on top of your regular income tax. The good news is that product selling has the longest deduction list of any side hustle, because you’re buying inventory and paying for a near-endless set of seller fees.
1099s: What FBA Sellers Get (and What It Means)
As an FBA seller, your main tax form is the 1099-K, issued by Amazon for the gross sales they process on your behalf. The 1099-K threshold for 2026 is $20,000 in gross payments AND more than 200 transactions.
Here’s the catch that trips up a lot of sellers:
- The 1099-K shows gross sales, not profit. Your actual taxable number is much lower, because it’s sales minus your product costs and fees.
- The 1099 threshold is about paperwork, not about what’s taxable. All of your sales are taxable whether or not Amazon sends you a form.
- You may also get a 1099-NEC if you sell through other channels, like a wholesale account or a client who pays you $2,000 or more for services. That threshold rose from $600 starting with 2026 payments.
The single most important thing to understand: don’t report your 1099-K gross as your income. You report your sales, then subtract your cost of goods sold and your expenses to reach your real profit. People who blindly report the 1099-K number massively overpay. The IRS has official FAQs on the 1099-K threshold if you want the fine print.
The Deductions Every FBA Seller Should Claim
Here’s where product selling stands apart from every service side hustle: you have cost of goods sold (COGS). That’s the cost of the inventory you actually sold, not everything you bought. And on top of that, you have a long list of seller-specific expenses. The big ones:
- Cost of goods sold (COGS): the cost of the products you sold, plus inbound shipping, packaging, and any customs or import fees.
- Amazon selling fees: referral fees, FBA fulfillment fees, storage fees, and your monthly subscription.
- Advertising: Amazon PPC ads and any other marketing you run.
- Product costs and samples: prototypes, samples, and product photography.
- Tools and software: inventory management, repricing, and accounting tools.
- Home office: a space used regularly and exclusively for your business. The simplified method is $5 per square foot, up to 300 sq ft ($1,500 max).
- Equipment: a laptop, printer, label printer, or scale used for the business.
- Business portion of phone and internet: the percentage you actually use for work.
You report all of this on Schedule C (Form 1040), where your sales, COGS, and expenses come together to arrive at your net profit. That profit then flows onto your main return and into Schedule SE for the self-employment tax.
If you’re comparing tools to track inventory and expenses through the year, Best Bookkeeping Software for Small Businesses compares the options most side hustlers use.
How Much to Set Aside
Because nothing is withheld from your sales, you have to set that money aside yourself. A good rule of thumb is to set aside roughly 25% to 30% of your net profit, the money left after your COGS and expenses.
Here’s a realistic FBA example using 2026 numbers:
| Item | Amount |
|---|---|
| Amazon sales (gross on your 1099-K) | $25,000 |
| Cost of goods sold + Amazon fees + shipping | ($17,500) |
| Other expenses (ads, software, home office) | ($2,000) |
| Net profit (what you owe taxes on) | $5,500 |
| Self-employment tax (15.3% × $5,500 = $842) | ~$842 |
| Federal income tax (at roughly a 12–22% bracket) | ~$660–$1,200 |
| Total tax owed | ~$1,500–$2,000 |
Notice the difference: gross sales of $25,000, but a tax bill of only about $1,500–2,000, because product costs and fees eat most of the revenue. That’s why tracking COGS accurately is the single most valuable thing you can do for your FBA taxes. Setting aside 28% of your net profit (about $1,540) covers it comfortably.
Practical tip: Move your set-aside percentage into a separate savings account the moment each Amazon payout lands. And never calculate your set-aside from gross sales, base it on your net profit or you’ll be constantly over-saving.
Quarterly Payments: When You Have to Pay
Because nothing is withheld from your sales, the IRS expects you to pay as you go, through quarterly estimated tax payments. You generally need to make these if you expect to owe $1,000 or more in tax after accounting for any withholding from a regular job.
The due dates for the 2026 tax year are:
| Quarter | Income period | Payment due date |
|---|---|---|
| 1st | Jan 1 – Mar 31 | April 15, 2026 |
| 2nd | Apr 1 – May 31 | June 15, 2026 |
| 3rd | Jun 1 – Aug 31 | September 15, 2026 |
| 4th | Sep 1 – Dec 31 | January 15, 2027 |
You make these payments using Form 1040-ES, and you can pay online through IRS Direct Pay or the free EFTPS system.
Sales Tax: The FBA Nexus Wrinkle
Here’s the wrinkle that’s unique to FBA sellers. Because Amazon stores your inventory in warehouses across many states, FBA can create sales tax nexus in states you’ve never set foot in. Nexus means a business presence that obligates you to collect sales tax there.
The good news: under marketplace facilitator laws, Amazon collects and remits sales tax on your behalf for sales made through their marketplace. That covers most of your obligation automatically.
Where it gets trickier:
- Sales outside Amazon can create separate obligations. If you sell your own products through a website or at craft fairs, those sales aren’t covered by Amazon’s marketplace collection, and you may need to register and collect in states where you have nexus.
- FBA warehouse location can matter. Many states have rules about inventory stored within their borders. Amazon typically handles collection for marketplace sales, but it’s worth understanding where your inventory sits.
The sales tax Amazon collects on your behalf is never your income. It belongs to the states, and Amazon remits it for you. Keep it out of your profit numbers, and check with a tax pro about any sales you make outside the marketplace, especially if you’re unsure whether you’ve triggered sales tax nexus there.
The Bottom Line on Amazon FBA Taxes
Amazon FBA taxes, and online seller taxes generally, come down to four things:
- Report your sales, and don’t mistake your 1099-K gross for your profit.
- Track your cost of goods sold, plus Amazon fees, ads, and home office.
- Set aside 25–30% of your net profit, or more if you’re in a higher bracket.
- Let Amazon handle marketplace sales tax, and pay quarterly on your actual profit.
Do that, and your Amazon business stays profitable all the way through tax season, instead of handing the IRS a bill you didn’t expect.
Want the broader picture across side hustles? Head back to Side Hustle Taxes 2026, where the full rules, deduction tables, and 2026 numbers live.
This is for informational purposes only and is not tax, legal, or financial advice. Rates and rules, including 2026 figures like the 1099-K threshold and estimated tax due dates, were accurate as of early 2026 but can change. For advice specific to your situation, consult a qualified tax professional.
