Amazon Sales Tax: What Sellers Still Need to Know in 2026

Amazon collects and remits sales tax for third-party sellers in all 45 states that have a sales tax. If you sell exclusively through Amazon FBA and only in the U.S., Amazon calculates the rate, charges the buyer, and sends the money to the state. That part is handled.

Your sales tax obligations did not disappear. You still need to register for permits in states where you have nexus, file zero-dollar returns in some cases, track where Amazon stores your inventory, and collect tax on every sale you make outside Amazon. Marketplace facilitator laws solved the collection problem. They did not solve the compliance problem.

This guide explains what changed, what Amazon handles, and what you still own.

What Marketplace Facilitator Laws Changed

In June 2018, the Supreme Court ruled in South Dakota v. Wayfair that states could require out-of-state sellers to collect sales tax based on economic activity, not just physical presence. Within three years, every state with a sales tax passed marketplace facilitator legislation.

Under these laws, Amazon (the marketplace facilitator) is legally responsible for calculating, collecting, and remitting sales tax on behalf of third-party sellers. Missouri was the last state to adopt marketplace facilitator rules; as of 2026, all 45 states with sales tax have these laws in place.

Before 2018, third-party sellers were responsible for registering in every state where they had nexus, setting up tax collection in Seller Central for each state, calculating rates manually or via third-party software, collecting tax from buyers, and filing returns. Amazon now handles collection and remittance. The seller's job shifted from operational tax collection to nexus tracking and compliance reporting.

What Amazon Handles

Amazon automatically:

• Calculates the correct sales tax rate for every order (state, county, city, special district)
• Collects the tax from the buyer at checkout
• Remits the collected tax to the applicable state revenue department
• Files marketplace facilitator returns that include third-party seller transaction data

You do not need to configure tax collection settings in Seller Central for states where Amazon acts as the facilitator. You do not need to send payments to state tax authorities for sales made through Amazon.

Amazon provides three reports in Seller Central to help you track what happened:

Marketplace Tax Collection Report: shows what Amazon collected and remitted on your behalf.

Sales Tax Calculation Report: covers any tax you were responsible for calculating yourself (rare).

Tax Document Library: houses your 1099-K and other IRS forms.

What Sellers Still Need to Handle

Amazon's marketplace facilitator obligations cover collection and remittance. They do not cover:

Registration: You must register for a sales tax permit in any state where you have nexus (physical or economic). Amazon does not register on your behalf.

Zero-dollar or informational returns: Some states require sellers with nexus to file periodic returns even when Amazon remitted all the tax. Failing to file can trigger delinquency notices or penalties.

FBA inventory nexus tracking: If Amazon stores your inventory in a state, that can create physical nexus. You need to know where your inventory sits and whether that triggers a registration or filing obligation.

Non-Amazon sales: If you also sell on Shopify, Walmart, wholesale, or your own website, you are fully responsible for collecting and remitting tax on those sales. Nexus applies to your entire business, not just your Amazon channel.

Product taxability configuration: Some products (food, clothing, digital goods) have special taxability rules. You are responsible for setting the correct product tax codes in Seller Central.

Audit compliance: If a state audits you, you need to provide transaction records. Amazon's reports help, but you own the response.

When Amazon Sellers Still Have Sales Tax Obligations

Physical nexus from inventory, offices, or employees

Physical nexus means you have a tangible presence in a state: inventory in a warehouse, an office, employees, or a contractor working on your behalf. FBA inventory counts. If Amazon stores your products in a Pennsylvania fulfillment center, you likely have physical nexus in Pennsylvania.

Physical nexus triggers a registration requirement in most states. Roughly half of states explicitly state that third-party warehouse inventory (including FBA) creates nexus. The other half either do not address it directly or have ruled that inventory alone does not create nexus without other activities.

Economic nexus from state sales thresholds

Economic nexus is triggered by sales volume or transaction count, regardless of physical presence. Every state with a sales tax now enforces economic nexus rules. Most states use a $100,000 annual sales threshold. Some states set higher thresholds:

• California: $500,000
• Texas: $500,000
• New York: $500,000 in sales plus 100 transactions
• Alabama: $250,000
• Mississippi: $250,000

Many states have dropped their transaction-count thresholds (previously 200 transactions) and now use revenue-only triggers. Alaska, Utah, Illinois, Indiana, North Carolina, and Wyoming all eliminated transaction thresholds between 2024 and 2026.

Economic nexus applies to your total sales into a state, not just Amazon sales. Some states include marketplace sales when calculating whether you crossed the threshold; others exclude them. This varies state by state.

Why multichannel brands have more exposure

If you sell on Amazon and also through Shopify, wholesale, Walmart, or a DTC website, your nexus footprint compounds. Amazon only collects and remits tax for sales made through Amazon. You are fully responsible for tax on every other channel.

Economic nexus triggered by Amazon sales can create filing obligations for non-Amazon sales. If you hit $100,000 in Amazon sales to California and also ship $20,000 in DTC orders to California, you owe sales tax on those DTC orders. Amazon will not collect it for you.

Multichannel sellers need to track nexus across all channels and set up tax collection on every platform where they have nexus. This is where most brands underestimate the complexity.

How FBA Inventory Affects Sales Tax Nexus

Why inventory location matters

When Amazon stores your inventory in a fulfillment center, that inventory creates a physical presence in that state. Physical presence can create nexus. Nexus can trigger registration and filing requirements.

Amazon operates fulfillment centers in 44+ states. The company moves inventory between warehouses algorithmically to improve delivery speed. You do not control where your products go. One month your inventory might sit in Ohio and Indiana; the next month Amazon redistributes it to California, Pennsylvania, and New Jersey.

About half of states treat third-party warehouse inventory as nexus-creating. The other half either do not require registration based solely on FBA inventory or have not issued clear guidance. Pennsylvania and Wisconsin are specifically noted by tax advisors as aggressively pursuing FBA sellers on income tax liability.

How to check where Amazon stores inventory

You can find your FBA inventory locations in Seller Central:

1. Go to Reports > Fulfillment > Inventory Event Detail
2. Download the report
3. Look at the "fulfillment-center-id" column

Fulfillment center IDs use airport codes (e.g., PHX3 = Phoenix, Arizona; RIC1 = Richmond, Virginia). Cross-reference the airport code with Amazon's public fulfillment center list or a third-party nexus tool.

Run this report quarterly. Your inventory locations can change without notice.

Why inventory does not automatically mean the same obligation in every state

Having inventory in a state does not automatically mean you owe sales tax on every sale shipped to that state. Amazon already collects and remits the tax. What inventory does trigger is:

• A potential requirement to register for a sales tax permit
• A potential requirement to file zero-dollar or informational returns
• Possible income tax or franchise tax obligations (varies by state)

The specific obligation depends on the state. Some states require registration and periodic $0 filing. Others only require registration if you make sales outside Amazon's facilitator coverage. A few states explicitly exempt FBA sellers from registration if Amazon handles all collection.

This is why blanket advice does not work. You need to check the rules for each state where Amazon stores your inventory.

Do You Need to Register or File if Amazon Collects the Tax?

States that may still require registration

Even when Amazon collects and remits all the tax, some states require third-party sellers to:

• Register for a sales tax permit in their home state
• Register in states where they have FBA inventory
• Register in states where they crossed the economic nexus threshold (even if all sales are marketplace sales)

Your home state almost always requires registration. If your business is based in Indiana and you sell only on Amazon, you still need an Indiana sales tax permit.

For other states, the registration requirement depends on state-specific rules. Some states waive registration if 100% of your sales are through marketplace facilitators. Others require registration regardless.

Zero-dollar or informational returns

A zero-dollar return is a sales tax filing that reports $0 in tax due because Amazon already remitted everything. Some states require these returns to:

• Maintain your permit in active status
• Provide transaction visibility to the state
• Ensure you remain compliant even when no payment is owed

Failing to file a zero-dollar return can result in delinquency notices, penalties (even though you owe no tax), and permit suspension or revocation.

Not every state requires zero-dollar returns. The requirement varies by state and sometimes by the type of permit you hold.

Why sellers should not assume Amazon covers everything

The most common mistake: assuming that because Amazon collects the tax, the seller has no sales tax obligations.

Amazon's marketplace facilitator role covers collection and remittance. It does not cover your registration obligations, your filing obligations, your nexus tracking, your non-Amazon sales, or your audit defense.

If you operate exclusively on Amazon, never register in your home state, and ignore FBA nexus, you will eventually receive a notice from a state revenue department asking why you never registered or filed. Marketplace facilitator laws did not eliminate seller responsibilities; they shifted them.

What Changes if You Also Sell Off Amazon

Shopify, wholesale, Walmart, and other channels

If you sell on Amazon and also sell through your own Shopify or WooCommerce site, wholesale to retailers, Walmart Marketplace, or other platforms, then Amazon only handles tax collection for the Amazon sales. You are fully responsible for every other channel.

Walmart Marketplace also operates as a marketplace facilitator in most states, so the same principles apply: Walmart collects the tax, but you still own registration and nexus tracking.

Shopify, WooCommerce, and wholesale sales are entirely your responsibility. You must determine where you have nexus, register in those states, configure tax collection in your ecommerce platform or invoicing system, collect tax from buyers, and file returns and remit payments.

How non-Amazon sales affect nexus analysis

Nexus is business-wide, not channel-specific. If you cross the $100,000 economic nexus threshold in California because of Amazon sales, that nexus applies to your Shopify sales too.

Some states include marketplace sales when calculating whether you hit the economic nexus threshold. Others exclude marketplace sales and only count direct sales. This varies state by state and creates additional complexity for multichannel sellers.

Why channel-by-channel thinking creates risk

Many brands assume Amazon sales are "handled" and only worry about sales tax for their DTC site. That assumption breaks down when Amazon sales volume triggers economic nexus (creating obligations for DTC sales), FBA inventory creates physical nexus (which applies to all channels), or the brand's total sales across all channels push it over thresholds in multiple states.

You cannot isolate sales tax compliance by channel. Nexus, registration, and filing requirements apply to the business as a whole.

A Simple Compliance Checklist for Amazon Sellers

Review nexus footprint

• Identify your home state (always nexus)
• Pull your FBA Inventory Event Detail report to see where Amazon stores your products
• Calculate your sales by state across all channels (Amazon, DTC, wholesale, other marketplaces)
• Identify states where you exceeded economic nexus thresholds

Confirm registrations and filing frequency

• Register for a sales tax permit in your home state if you have not already
• Determine which FBA inventory states require registration
• Check whether economic nexus states require registration even when Amazon handles collection
• Confirm filing frequency for each state (monthly, quarterly, annual)

Pull Amazon tax reports

• Download the Marketplace Tax Collection Report to see what Amazon collected and remitted
• Review the Sales Tax Calculation Report for any seller-calculated tax (rare but possible)
• Cross-check reports against your nexus footprint

Coordinate with a sales tax advisor

• State rules change frequently; static checklists go stale
• Economic nexus thresholds, registration requirements, and filing rules vary by state
• A qualified sales tax professional or automated compliance service (TaxJar, Avalara) can help you stay current

Do not assume this checklist is exhaustive. It is a starting point, not a substitute for state-specific research or professional advice.

Common Amazon Sales Tax Questions

When to Get Help

Where operational support ends and tax advice begins

Managing an Amazon business includes logistics, advertising, catalog management, supply chain coordination, and inventory planning. Sales tax compliance sits at the boundary between operations and specialized tax expertise.

You can handle some tasks yourself: pulling Amazon tax reports, tracking FBA inventory locations, understanding basic nexus concepts, and setting up tax collection on your DTC site.

You should involve a qualified sales tax professional or automated compliance service when determining whether you need to register in a specific state, interpreting state-specific nexus rules, deciding whether zero-dollar filing applies to your situation, responding to a state tax notice or audit, or managing compliance across 10+ states.

Sales tax rules change frequently. States adjust economic nexus thresholds, clarify FBA inventory treatment, and issue new guidance on marketplace facilitator obligations. Static advice goes stale quickly.

For brands operating at scale

SupplyKick works with brands managing Amazon as a core revenue channel. Some of those brands operate as third-party sellers and handle their own sales tax compliance using TaxJar, Avalara, or a CPA firm. Others work with SupplyKick as a first-party partner, which shifts the sales tax filing obligation to SupplyKick as the reseller.

The first-party model is not a universal solution. It works for brands that want to simplify operations and offload channel management, but it is not the only way to solve sales tax complexity. Third-party sellers using marketplace facilitator protections and solid compliance tools can manage sales tax successfully.

If you are managing Amazon operations in-house and need support on the operational side (inventory movement, advertising, catalog strategy, supply chain), our team can help. If you need sales tax advice, start with a qualified CPA or compliance service.