Amazon FBA Taxes 2026: What Every Seller Needs to Know

What Every Amazon FBA Seller Needs to Know About Taxes

Taxes are one of the most overlooked parts of running an Amazon FBA business. Most sellers spend weeks researching products, optimizing listings, and learning PPC, but when tax season hits, they scramble to figure out what they owe, what they can deduct, and whether they have been collecting sales tax correctly. That scramble costs money, and in some cases it creates legal problems that could have been avoided entirely.

I have been in the ecommerce space for years through E-Commerce Paradise and the tax questions come up constantly. Sellers want to know how much to set aside, whether they need to collect sales tax in every state, what counts as a deductible expense, and when they need to hire a CPA versus doing it themselves. This guide covers all of it.

Before I get into the details, a quick but important disclaimer: I am not a CPA or tax attorney. This guide is for educational purposes based on my experience running ecommerce businesses and working with sellers. For your specific tax situation, consult a qualified tax professional. The information here will help you have a much more productive conversation with your accountant and avoid the most common mistakes I see sellers make.

Business Structure and Tax Implications

The business entity you choose directly affects how your Amazon income is taxed. Most FBA sellers operate as one of three structures: sole proprietorship, single-member LLC, or S-corporation. Each one has different tax filing requirements and different strategies for minimizing what you owe.

Sole Proprietorship

If you started selling on Amazon without forming a separate business entity, you are a sole proprietor by default. Your Amazon income gets reported on Schedule C of your personal tax return (Form 1040). You pay income tax on your net profit at your personal marginal tax rate, plus self-employment tax of 15.3 percent on the first $160,200 of net earnings (2023 threshold, adjusted annually for inflation).

The self-employment tax is the part that catches new sellers off guard. It covers Social Security (12.4 percent) and Medicare (2.9 percent) taxes that would normally be split between you and an employer. As a sole proprietor, you pay both halves. On $50,000 of net profit, that is an extra $7,650 in taxes on top of your income tax.

Single-Member LLC

An LLC does not change your federal tax treatment unless you elect otherwise. A single-member LLC is treated as a “disregarded entity” by the IRS, which means your income still flows through to Schedule C just like a sole proprietorship. You still pay the same self-employment tax.

The value of an LLC is in liability protection, not tax savings. If you have not formed an LLC yet, my business formation checklist walks through the full process including which state to file in and how to get your EIN.

S-Corporation Election

Once your FBA business is consistently profitable above roughly $40,000 to $50,000 in annual net profit, an S-corp election can save you significant money on self-employment taxes. With an S-corp, you pay yourself a “reasonable salary” and take the remaining profits as distributions. Only the salary portion is subject to payroll taxes. The distribution portion is not.

For example, if your FBA business nets $100,000 and you pay yourself a $50,000 salary, you save roughly $7,650 in self-employment taxes compared to a sole proprietorship or standard LLC. The trade-off is additional complexity: you need to run payroll, file a separate S-corp tax return (Form 1120-S), and the “reasonable salary” requirement means the IRS will scrutinize you if your salary is unreasonably low relative to your workload and revenue.

Talk to a CPA before making the S-corp election. The math does not work for every seller, especially those whose profits fluctuate significantly year to year.

Sales Tax for Amazon FBA Sellers

Sales tax is a state-level tax, and it is one of the most confusing areas for Amazon sellers because the rules changed dramatically after the 2018 Supreme Court decision in South Dakota v. Wayfair. Before Wayfair, you only had to collect sales tax in states where you had a physical presence (called “nexus”). After Wayfair, states can require you to collect sales tax based on your sales volume or number of transactions into their state, even without physical presence.

How Amazon Handles Sales Tax Collection

Here is the good news: as of 2026, Amazon collects and remits sales tax on your behalf in all states that have marketplace facilitator laws. This covers all 45 states (plus Washington D.C.) that impose a general sales tax. Amazon calculates the correct rate, collects it from the customer, and remits it to the state.

This means that for most FBA sellers, the day-to-day burden of sales tax collection has been largely handled by Amazon. You do not need to register for sales tax permits in every state just because Amazon is fulfilling orders there. Amazon, as the marketplace facilitator, takes on that responsibility.

When You Still Need to Worry About Sales Tax

Marketplace facilitator laws cover sales made through Amazon’s platform, but they do not cover sales you make through your own website, at trade shows, or through other channels that are not marketplace facilitators. If you sell on Shopify or your own website in addition to Amazon, you need to determine your sales tax nexus obligations for those channels separately.

You may also have reporting obligations even though Amazon collects and remits. Some states require marketplace sellers to file zero-dollar returns if they have nexus in the state, even if the marketplace facilitator handled all the tax. Check with your CPA or use a sales tax automation tool to determine your specific filing requirements.

Income Tax Obligations

Your Amazon FBA income is subject to federal income tax and, depending on where you live, state income tax. The key to managing your income tax liability is understanding what counts as taxable income and what you can deduct.

How Amazon Reports Your Income

Amazon reports your gross sales to the IRS on Form 1099-K if you exceed the reporting thresholds. Under current rules, the threshold is $600 in gross sales. You will receive this form early in the year for the previous tax year. Keep in mind that the 1099-K reports gross sales, not your profit. It includes the full selling price including shipping, before any Amazon fees, returns, or cost of goods sold are subtracted.

This is an important distinction because the IRS receives a copy of your 1099-K. If your tax return shows a lower gross income than what Amazon reported, it will trigger a mismatch notice. Make sure your tax return reconciles with your 1099-K and that all adjustments (fees, returns, refunds) are properly accounted for.

Quarterly Estimated Tax Payments

If you expect to owe $1,000 or more in taxes for the year, the IRS requires you to make quarterly estimated tax payments. The due dates are April 15, June 15, September 15, and January 15 (for the prior year’s Q4). Missing these deadlines results in underpayment penalties.

A common rule of thumb is to set aside 25 to 30 percent of your net profit each quarter for taxes. This covers both income tax and self-employment tax for most sellers. Your actual percentage depends on your marginal tax bracket, state taxes, and deductions, so work with your CPA to dial in the right number for your situation.

Tax Deductions Every FBA Seller Should Know

Deductions reduce your taxable income, which directly reduces your tax bill. Many sellers leave money on the table by not tracking or claiming all the deductions they are entitled to. Here are the major categories.

Cost of Goods Sold

Your biggest deduction is usually the cost of the products you sell. This includes the wholesale price you paid for inventory, shipping costs to get inventory to Amazon’s fulfillment centers (inbound shipping), customs duties and import fees for international sourcing, and any costs directly related to preparing products for sale like labeling, poly bagging, and bundling supplies.

Track every invoice from every supplier and every inbound shipping receipt. If you cannot prove the cost, you cannot deduct it.

Amazon Fees

Every fee Amazon charges you is a deductible business expense. This includes referral fees (typically 15 percent of the sale price), FBA fulfillment fees, monthly storage fees, long-term storage fees, removal and disposal fees, advertising costs (PPC spend), and the Professional Seller subscription ($39.99 per month). My complete FBA fees breakdown covers every fee category in detail.

Software and Tools

Subscriptions to Amazon seller tools are deductible. This includes product research tools like Helium 10 and Jungle Scout, inventory management software, repricing tools, and any other software you use to run your business.

Accounting software counts too. Tools like QuickBooks or FreshBooks are fully deductible business expenses, as are subscriptions to sales tax automation services and any other SaaS tools directly related to running your Amazon operation.

Home Office Deduction

If you use a dedicated space in your home exclusively for your FBA business, you can deduct a portion of your rent or mortgage interest, utilities, insurance, and maintenance costs. The simplified method allows $5 per square foot of dedicated office space, up to 300 square feet ($1,500 maximum). The regular method requires you to calculate the actual percentage of your home used for business and apply that percentage to your total housing costs.

Shipping and Logistics

Beyond inbound shipping to Amazon, you can deduct shipping supplies (boxes, tape, labels, poly bags), costs of shipping returns or removal orders, mileage for business-related driving (like trips to the post office, retail arbitrage sourcing, or supplier meetings), and any third-party logistics costs if you use a prep center.

Professional Services

Fees paid to CPAs, bookkeepers, attorneys, and business consultants are fully deductible. If you hire a virtual assistant through a service like OnlineJobs.ph to help manage your Amazon account, those costs are deductible too.

Education and Training

Courses, coaching programs, books, and conferences related to your Amazon business are deductible as long as they are directly related to maintaining or improving skills in your current business. If you are investing in learning how to grow your ecommerce operations, those expenses count.

Bookkeeping Best Practices for FBA Sellers

Good bookkeeping is the foundation of tax compliance. If your books are a mess, you will overpay on taxes, miss deductions, and create headaches for yourself and your CPA at filing time.

Separate Business and Personal Finances

Open a dedicated business bank account and a business credit card. Run all business income and expenses through these accounts. Never co-mingle personal and business funds. This makes bookkeeping dramatically easier and protects you in the event of an audit.

Choose the Right Accounting Software

Most FBA sellers use either QuickBooks or FreshBooks for their bookkeeping. Both integrate with Amazon seller data through third-party connectors. QuickBooks is the industry standard and most CPAs are comfortable working with it. FreshBooks is simpler and works well for smaller operations.

For sellers who want automated bookkeeping specifically designed for ecommerce, Finaloop connects directly to your Amazon account and automatically categorizes transactions, reconciles your books, and generates tax-ready reports. It is purpose-built for ecommerce sellers and eliminates most of the manual data entry that makes bookkeeping painful.

Reconcile Monthly

Do not wait until tax season to reconcile your books. Set a monthly routine where you match your Amazon settlement reports against your bank statements, verify that all supplier invoices are recorded, categorize any uncategorized transactions, and review your profit and loss statement for accuracy. Spending one to two hours per month on bookkeeping saves 20 or more hours of scrambling in April.

Accounting Tools Comparison for FBA Sellers

Common Tax Mistakes FBA Sellers Make

These are the mistakes that cost sellers the most money or create the biggest compliance risks. Avoiding them puts you in a stronger position than the majority of Amazon sellers.

Not Tracking Inventory Costs Properly

The IRS requires sellers with inventory to use an inventory accounting method (FIFO, LIFO, or specific identification) and track cost of goods sold accurately. Simply deducting every inventory purchase in the year you bought it is incorrect if you still have unsold inventory at year end. You can only deduct the cost of inventory that was actually sold during the tax year.

This matters more as your business grows. If you purchase $50,000 in inventory but only sell $35,000 worth, your cost of goods sold deduction is $35,000, not $50,000. The remaining $15,000 in unsold inventory is an asset on your balance sheet, not an expense.

Ignoring Nexus and State Tax Filing Requirements

Even though Amazon handles sales tax collection as a marketplace facilitator, some states still require you to file returns if you have nexus there. FBA sellers often have physical nexus in states where Amazon stores their inventory, which can be a dozen or more states. Failing to file required returns, even zero-dollar returns, can result in penalties and interest.

Missing Quarterly Estimated Payments

New sellers frequently forget about quarterly estimated tax payments until they get hit with an underpayment penalty. If your FBA business is profitable, set up quarterly payments from day one. The penalty for underpayment is not catastrophic, but it is completely avoidable.

Not Separating Business and Personal Expenses

Using your personal credit card for business purchases and your business account for personal expenses creates an accounting nightmare. It makes it difficult to prove deductions in an audit and increases the chance of errors on your tax return. Keep everything separate from the start.

Failing to Keep Receipts and Documentation

The IRS can audit you up to three years after filing (six years if they suspect substantial underreporting). You need to keep records for at least that long. Digital copies of receipts stored in cloud storage are fine. You do not need paper copies, but you do need something. “I know I bought it but I cannot find the receipt” is not a valid deduction in an audit.

International Sellers and US Tax Obligations

If you are a non-US seller selling on Amazon.com through FBA, you have specific tax obligations that differ from domestic sellers.

Amazon withholds 30 percent of your gross sales as backup withholding unless you provide a valid W-8BEN or W-8BEN-E form. This withholding rate may be reduced if your country has a tax treaty with the United States. Filing the correct withholding form is critical to avoid having nearly a third of your revenue held by Amazon.

International sellers with a US LLC may also need to file Form 5472 (Information Return of a 25% Foreign-Owned U.S. Corporation or a Foreign Corporation Engaged in a U.S. Trade or Business) along with a pro-forma Form 1120. The penalty for not filing Form 5472 is $25,000 per form, so this is not something to overlook.

For international sellers managing cross-border payments, Wise is the tool I recommend for receiving Amazon payouts and converting currencies at real exchange rates without hidden markups.

When to Hire a CPA

You should seriously consider hiring a CPA if your annual FBA revenue exceeds $50,000, you have inventory across multiple channels, you are considering an S-corp election, you sell internationally or have international suppliers, you have employees or contractors, or you simply do not have the time or inclination to learn tax code. The cost of a good ecommerce CPA ranges from $500 to $2,500 per year depending on the complexity of your return. A CPA who understands ecommerce and Amazon specifically will almost always save you more in tax optimization than their fee costs.

When interviewing CPAs, ask specifically about their experience with Amazon FBA sellers, ecommerce inventory accounting, and sales tax compliance. A general CPA who has never worked with an ecommerce business will miss deductions and may not understand how Amazon settlement reports work.

Tax Planning Strategies for Growing FBA Businesses

As your business scales, proactive tax planning becomes increasingly valuable. Here are strategies that experienced sellers use to legally minimize their tax burden.

Retirement Account Contributions

As a self-employed individual, you can contribute to a SEP-IRA (up to 25 percent of net self-employment income, max $66,000 for 2023, adjusted annually) or a Solo 401(k) (up to $22,500 employee contribution plus up to 25 percent of net income as employer contribution). These contributions reduce your taxable income dollar for dollar while building retirement savings. If you are making $100,000 or more from your FBA business and not maximizing retirement contributions, you are likely overpaying on taxes.

Section 199A Qualified Business Income Deduction

If your FBA business is structured as a sole proprietorship, LLC, or S-corp, you may qualify for the Section 199A deduction, which allows you to deduct up to 20 percent of your qualified business income. This deduction phases out at higher income levels and has specific rules around specified service trades, but for most FBA sellers, it represents a significant tax savings. Your CPA can determine whether you qualify and how to maximize this deduction.

Timing Inventory Purchases

While you cannot deduct unsold inventory, you can strategically time your inventory purchases to manage your cash flow and tax liability. Purchasing inventory late in the year that you expect to sell early in the next year shifts the cost of goods sold deduction into the following tax year. Conversely, ensuring you sell through older inventory before year end maximizes your current year deductions.

Frequently Asked Questions

Do I need to collect sales tax as an Amazon FBA seller?

In most cases, Amazon handles sales tax collection and remittance for sales made through its platform under marketplace facilitator laws. However, if you also sell through your own website or other non-marketplace channels, you need to determine your nexus obligations and collect sales tax accordingly for those sales.

How much should I set aside for taxes from my Amazon income?

A general guideline is to set aside 25 to 30 percent of your net profit (after all deductible expenses) for federal income tax, self-employment tax, and state income tax. Your actual percentage may be higher or lower depending on your tax bracket, state of residence, and available deductions. Work with a CPA to calculate your specific estimated tax payments.

Can I deduct inventory that did not sell?

Unsold inventory cannot be deducted as an expense. It remains an asset on your balance sheet. You can only deduct the cost of inventory that was actually sold during the tax year (cost of goods sold). If inventory becomes obsolete or worthless, you may be able to write it off, but this requires proper documentation.

What records do I need to keep for my Amazon business?

Keep all supplier invoices and purchase orders, Amazon settlement reports, bank and credit card statements, receipts for all business expenses, mileage logs for business driving, records of home office square footage, and documentation for any asset purchases. Store these records for at least three years from the date you filed your tax return, though six years is safer.

Do I need a separate EIN for my Amazon business?

If you are a sole proprietor with no employees, you can use your Social Security number. However, getting an EIN (Employer Identification Number) is free from the IRS and is recommended because it protects your SSN from appearing on more documents, is required if you form an LLC or hire employees, and is needed for opening a business bank account at most banks.

Final Thoughts

Taxes are not the exciting part of running an Amazon FBA business, but getting them right is essential to keeping more of the money you earn. The sellers who treat tax planning as an afterthought consistently overpay and expose themselves to compliance risks that are entirely preventable.

The foundation is simple: choose the right business structure, separate your finances, track every expense, make your quarterly payments, and work with a CPA who understands ecommerce. Everything else builds on that foundation.

If you are still evaluating whether FBA is right for you, my honest breakdown of whether Amazon FBA is worth it factors in the full cost picture including taxes and fees. Understanding the tax implications upfront helps you make a more informed decision about the business model.

For sellers already running profitable FBA operations, the next step is getting your accounting system dialed in. Using a tool like Finaloop for automated bookkeeping alongside QuickBooks for your broader financial picture gives you clean books that make tax season straightforward instead of stressful.

Whether you are just starting out or scaling past seven figures, the tax fundamentals covered in this guide apply at every stage. Build good habits now and they compound just like your business growth.

If you are looking for the right high-ticket niches to build a profitable business around, or want to understand the full landscape of high-ticket dropshipping, those guides give you the product and business model context that feeds directly into your tax planning.

And if you want hands-on help building and scaling your ecommerce business, our 1-on-1 coaching covers everything from product sourcing to financial management. For a done-for-you approach, check out our store build service.

For a detailed look at every fee Amazon charges and how they impact your bottom line, my FBA fees guide breaks it all down so you can calculate your true margins before tax season arrives.

I wish you guys the best of luck out there. Getting your tax situation sorted early is one of the best investments you can make in your Amazon business.

Related Articles

If you found this useful, these guides go deeper on related topics:

• Amazon FBA Fees: Complete 2026 Breakdown
• Is Amazon FBA Worth It in 2026? Honest Breakdown
• Amazon FBA for Beginners: Complete 2026 Guide
• Business Formation Checklist for High-Ticket Dropshipping
• How to Find and Vet High-Ticket Dropshipping Suppliers

Trevor Fenner

Trevor Fenner is an ecommerce entrepreneur and the founder of Ecommerce Paradise, a platform focused on helping entrepreneurs build and scale profitable high-ticket ecommerce and dropshipping businesses. With over a decade of hands-on experience, Trevor specializes in high-ticket dropshipping strategy, niche and product selection, supplier recruiting and onboarding, Google & Bing Shopping ads, ecommerce SEO, and systems-driven automation and scaling. Through Ecommerce Paradise, he provides free education via in-depth guides like How to Start High-Ticket Dropshipping, advanced training through the High-Ticket Dropshipping Masterclass, and fully done-for-you turnkey ecommerce services for entrepreneurs who want a faster, more hands-off path to growth. Trevor is known for emphasizing sustainable, real-world ecommerce models over hype-driven tactics, helping store owners build scalable, sellable, and location-independent brands.

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