Amazon FBA Seller Tax Guide: Sales Tax, Income, Deductions

Selling through Amazon’s Fulfillment by Amazon (FBA) program creates a unique tax landscape. Your inventory sits in Amazon warehouses across multiple states, your sales cross state lines, and Amazon’s fee structure adds layers of complexity to your accounting. This guide breaks down the income tax, sales tax, and deduction rules every FBA seller must understand.

Data Notice: Sales tax data presented in “Amazon FBA Seller Tax Guide: Sales Tax, Income, Deductions” is sourced from 2026 state revenue publications. Rates change through legislative action and local ballot measures. Confirm current rates with your state department of revenue. [amazon-fba-tax-guide]

How Amazon Reports Your Income

Amazon issues a 1099-K to sellers who receive $600 or more in gross sales. The 1099-K reports the total gross amount of payments processed — not your net payout after fees. This means the number on your 1099-K will be substantially higher than what Amazon deposited in your bank account.

The gap between your 1099-K gross and your bank deposits includes:

• Amazon referral fees (~8-15% depending on category)
• FBA fulfillment fees (~$3-$7+ per unit)
• Monthly storage fees
• Long-term storage fees
• Advertising costs (Sponsored Products, Sponsored Brands)
• Returns processing fees
• Removal and disposal fees

All of these fees are deductible business expenses on your Schedule C. You can reconcile your 1099-K with Amazon’s detailed transaction reports in Seller Central.

Marketplace Facilitator Laws and Sales Tax

One of the most important developments for Amazon sellers is the widespread adoption of marketplace facilitator laws. As of 2026, virtually every state with a sales tax requires Amazon to collect and remit sales tax on behalf of third-party sellers.

What This Means for You

• Amazon handles it: For sales fulfilled through Amazon (FBA or Merchant Fulfilled), Amazon calculates, collects, and remits sales tax in marketplace facilitator states
• You do not remit: You generally do not need to register for sales tax permits or file sales tax returns in states where Amazon is the marketplace facilitator for your sales
• Exceptions exist: If you sell through other channels (your own website, other marketplaces, craft fairs), you are responsible for sales tax compliance on those sales

Multi-State Nexus Concerns

Even though Amazon handles sales tax collection, storing inventory in FBA warehouses creates physical nexus in those states. This can trigger:

• State income tax obligations: Some states require businesses with nexus to file state income tax or franchise tax returns
• Local business taxes: Certain jurisdictions impose local business license requirements
• Non-marketplace sales: If you sell outside Amazon, your FBA-created nexus could require you to collect sales tax in those states independently

Amazon stores inventory in warehouses across the country, and you generally cannot choose which facilities hold your products. Check your FBA Inventory Placement report to see which states currently hold your inventory.

Reporting Income on Schedule C

Gross Revenue

Your gross revenue on Schedule C should reflect total sales, which can be reconciled with your 1099-K. Include:

• Product sale revenue
• Shipping credits (if applicable)
• FBA reimbursements for lost or damaged inventory (this is income)
• Amazon promotional credits

Cost of Goods Sold (COGS)

For FBA sellers, COGS is typically the largest single deduction. It includes:

• Product purchase costs: Wholesale, retail arbitrage, or manufacturing costs for inventory
• Inbound shipping to Amazon: The cost of shipping products to FBA warehouses
• Prep and packaging: Poly bags, bubble wrap, labels, and prep service fees
• Import duties and customs fees: If sourcing internationally
• Direct labor: Costs paid to others for product preparation

Inventory Accounting Methods

You must choose an inventory accounting method and use it consistently:

• FIFO (First In, First Out): Oldest inventory costs are matched to sales first. Most common for retail sellers.
• Average Cost: The average cost of all units in inventory is applied to each sale. Simple for sellers with fluctuating purchase prices.
• Specific Identification: Each unit’s cost is tracked individually. Most accurate but impractical at scale.

For most Amazon sellers, FIFO or average cost provides the best balance of accuracy and simplicity.

Deductible Amazon Fees

Every fee Amazon charges is a deductible business expense:

Fee Type	Approximate Range	Deductible?
Referral fees	~8-15% of sale price	Yes
FBA fulfillment fees	~$3.22-$7.00+ per unit	Yes
Monthly storage	~$0.87-$2.40 per cubic ft	Yes
Long-term storage	~$6.90 per cubic ft (surcharge)	Yes
Professional seller subscription	~$39.99/month	Yes
Advertising (PPC)	Variable	Yes
Removal/disposal fees	~$0.97-$1.04 per unit	Yes
FBA label service	~$0.55 per unit	Yes

Other Deductible Expenses

Beyond Amazon fees and COGS, FBA sellers can typically deduct:

• Software and tools: Jungle Scout, Helium 10, Keepa, inventory management software
• Home office: Dedicated space for product research, listing creation, and bookkeeping (home office deduction)
• Vehicle expenses: Trips for sourcing inventory (retail/online arbitrage), post office visits (~$0.70/mile)
• Education: Courses, conferences, and coaching related to Amazon selling
• Professional services: Accountant, bookkeeper, tax preparer
• Insurance: Product liability, general business insurance
• Photography: Equipment and services for product images
• Samples: Product samples for quality control or listing photos
• Returns: The cost of returned inventory that cannot be resold

Self-Employment Tax

Your Schedule C net profit is subject to self-employment tax at 15.3% on 92.35% of net earnings. The Social Security component (12.4%) applies to the first ~$168,600 of net self-employment income in 2026. The Medicare component (2.9%) applies to all net SE income, with an additional 0.9% Medicare surtax on SE income above ~$200,000 (single) or ~$250,000 (married filing jointly).

Quarterly Estimated Taxes

FBA sellers with significant income should make quarterly estimated tax payments to avoid underpayment penalties. The safe harbor rules require paying at least:

• 100% of the prior year’s total tax liability (110% if AGI exceeded $150,000), OR
• 90% of the current year’s total tax liability

Many FBA sellers experience seasonal income fluctuations (Q4 holiday sales can represent 40-50% of annual revenue). The annualized income installment method allows you to adjust quarterly payments based on actual income earned in each period rather than paying equal quarterly amounts.

Entity Structure Considerations

Many FBA sellers eventually form an LLC or S Corporation. While this does not change income tax treatment (single-member LLCs are still reported on Schedule C), electing S Corporation status can reduce self-employment tax for sellers with substantial profits.

With an S Corp election, you pay yourself a reasonable salary (subject to FICA taxes) and take remaining profits as distributions (not subject to SE tax). This strategy typically becomes beneficial when net profits consistently exceed ~$50,000-$60,000 annually.

Inventory Write-Offs and Losses

FBA sellers commonly face inventory losses from:

• Amazon-damaged or lost inventory: If Amazon does not reimburse you, the lost cost is deductible
• Customer returns in unsellable condition: Deductible as a cost of goods sold adjustment or business loss
• Obsolete or expired inventory: Can be written down to fair market value or scrapped
• Disposal fees: Deductible when you have Amazon remove or dispose of unsellable inventory

Track all inventory discrepancies through Amazon’s reimbursement reports and reconcile quarterly.

Record-Keeping Requirements

The IRS expects FBA sellers to maintain:

• Purchase receipts and invoices for all inventory
• Amazon settlement reports and transaction records
• 1099-K forms from Amazon
• Records of inventory shipped to FBA (quantities, costs, dates)
• Documentation of inventory losses, returns, and write-offs
• Bank and credit card statements showing business transactions
• Home office measurements and calculations
• Mileage logs for business driving

Download your Amazon reports monthly. Seller Central data retention is limited, and you may lose access to historical reports. A thorough list of potential deductions can be found in our complete tax deductions guide.

Frequently Asked Questions

Does Amazon withhold taxes from my payouts?

No. Amazon does not withhold income tax or self-employment tax from your disbursements. You are responsible for setting aside money for taxes and making quarterly estimated payments.

My 1099-K is much higher than my profit. How do I report this?

Report the 1099-K gross amount as gross income on Schedule C, then deduct Amazon fees, COGS, and all other business expenses to arrive at your actual net profit. The IRS expects the 1099-K amount to appear on your return, with deductions explaining the difference.

Do I need to file state tax returns in every state where Amazon stores my inventory?

Potentially. Physical presence (nexus) through FBA inventory can trigger state income tax obligations. However, many states have de minimis thresholds. Consult a tax professional familiar with multi-state filing, or see our multi-state filing guide for general principles.

Can I use the simplified home office deduction?

Yes. The simplified method allows $5 per square foot of dedicated home office space, up to 300 square feet ($1,500 maximum). Alternatively, Form 8829 lets you deduct actual expenses proportional to your home office square footage, which may yield a larger deduction.

What if I just started selling and had more expenses than income?

If your Amazon business is a legitimate business (not a hobby), you can deduct business losses against other income, including W-2 wages. First-year losses are common and acceptable, but maintain documentation of your profit motive. Review IRS guidance on business deductions to ensure you capture every eligible expense.

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The amazon fba seller tax guide: sales tax, income, deductions content in this article is intended for general education only. It is not designed to address the specific tax situation of any individual reader. A credentialed tax professional can provide advice that accounts for your particular financial circumstances.