Amazon FBA seller tax guide: fees, nexus, 1099-K, and deductions (2026)
Amazon FBA adds tax complexity that no other platform has. Your inventory sits in Amazon warehouses across multiple states — creating physical nexus and potential sales tax obligations in every one of those states. On top of that, Amazon's fee structure (referral fees, FBA fulfillment fees, storage fees, and more) can consume 30–40% of your revenue — all of which is deductible. This guide covers the full tax picture for Amazon FBA sellers in 2026.
Amazon fee breakdown: what FBA sellers actually pay
Amazon's fee structure is the most complex of any marketplace. For FBA sellers, there are three mandatory fee categories plus several situational ones:
All Amazon fees are 100% tax-deductible business expenses. Download your monthly and annual fee summaries from Seller Central → Reports → Payments.
Your Amazon 1099-K
Amazon issues a 1099-K through Amazon Payments when your gross sales exceed $20,000 AND you have more than 200 transactions (reinstated by OBBBA, July 2025). The 1099-K reports gross payment volume — including the full sale price before referral fees, FBA fees, and refunds.
Amazon's settlement reports are notoriously complex. The 1099-K amount will not match your bank deposits because Amazon nets out fees, refunds, and reimbursements before paying you. Use your Amazon annual sales summary (Seller Central → Reports → Tax Document Library) to reconcile.
Get the Amazon FBA tax organizer (PDF)
Settlement report reconciliation worksheet, fee category breakdown for Schedule C, and the multi-state nexus checklist — built for FBA sellers.
The FBA warehouse nexus problem
This is the #1 tax compliance issue unique to Amazon FBA sellers. When Amazon stores your inventory in their fulfillment centers, you have physical nexus in every state where your inventory sits — even if you've never set foot in that state.
Amazon operates fulfillment centers in 40+ states. If your inventory is distributed across warehouses in California, Texas, Pennsylvania, and Ohio, you potentially have sales tax obligations in all four states. Amazon handles sales tax collection as a marketplace facilitator (so you're covered for Amazon marketplace sales), but this nexus can create filing obligations:
- You may need to register for a sales tax permit in states where you have inventory, even though Amazon collects and remits the tax.
- Some states require $0 returns — once registered, you must file even in periods with no direct sales.
- If you also sell on your own website (Shopify, etc.), you must collect and remit sales tax in every state where you have FBA inventory — not just where you meet economic nexus thresholds.
You can see where Amazon is storing your inventory in Seller Central → Inventory → Inventory Planning → Inventory by Warehouse. Use this to identify which states you have nexus in.
Every deduction for Amazon FBA sellers
FBA sellers have a unique deduction profile because so many costs are baked into Amazon's fee structure. For the universal deductions list, see our complete deductions guide.
Related e-commerce guides: Etsy seller tax guide · Shopify seller tax guide · 1099-K explained · Sales tax nexus guide · Reseller profit calculator
Quarterly estimated taxes
Amazon does not withhold any taxes from your disbursements. If you expect to owe $1,000+ in federal taxes, quarterly payments are required. Due dates: April 15, June 15, September 15, January 15. Set aside 25–30% of your net profit. See our quarterly tax guide.
Real example: $120,000 gross Amazon FBA seller
A private label seller grosses $120,000 (1099-K amount). After deductions:
- COGS (product + inbound shipping): $36,000
- Amazon referral fees (15%): $18,000
- FBA fulfillment fees: $14,400
- FBA storage fees: $2,100
- Amazon PPC advertising: $12,000
- Professional plan: $480
- Software (Helium 10, A2X, etc.): $1,800
- Home office: $1,500
- Internet/phone (50%): $870
- Product photography: $600
Total deductions: $87,750. Net profit: $32,250. SE tax: ~$4,558. Income tax (22% bracket): ~$3,553. Total federal tax: approximately $8,111 on $120,000 gross — a 6.8% effective rate. For sellers who want to model these numbers before launch, the FBA profit calculator at Bag Engine lets you stress-test margins across different price points and fee structures.
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