Amazon FBA Sales Tax: Inventory Nexus and the Gap Amazon Leaves
Amazon collects the tax on marketplace orders, which persuades a lot of sellers they have nothing to do. The stock itself is the problem: inventory sitting in a fulfilment centre is a physical presence, and physical presence has no threshold to cross.
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Quick answer: Amazon collects and remits sales tax on marketplace orders. It does not remove your obligations. FBA inventory creates physical nexus in every state it is stored in, with no minimum sales, and that nexus applies to everything you sell off-Amazon.
Two Things That Get Confused
Marketplace facilitator laws and nexus rules answer different questions, and conflating them is the single most common FBA mistake.
What Amazon does
Collects and remits tax on orders placed through the marketplace. That is all.
What nexus does
Obliges you to register and file in a state, regardless of who collected on which order.
The mechanics of facilitator laws are covered in marketplace facilitator laws. What matters here is the half they do not touch.
The Inventory Trap
Economic nexus has a threshold. Physical nexus does not. One pallet of your stock in a state is enough, and inventory you own is physical presence even though you have never been there.1
FBA makes this acute because placement is Amazon's decision, not yours. Stock is distributed and rebalanced across the network to shorten delivery times, so a seller who ships everything to one intake centre can hold inventory in a dozen states within months — each one a state where registration is arguably already due.
This is why FBA exposure builds quietly. There is no threshold event to notice, no email, and no dashboard warning. The obligation begins when the stock arrives, and the first sign is often a state questionnaire — which closes your voluntary disclosure option.
Where Amazon's Collection Stops
Everything below sits outside the marketplace, so the facilitator law does nothing for it — while the nexus your FBA stock created applies in full:
| Channel | Who collects |
|---|---|
| Amazon marketplace order | Amazon |
| Your own Shopify or WooCommerce store | You |
| Wholesale and B2B invoices | You (or an exemption certificate) |
| Markets, fairs and trade shows | You |
A seller running FBA alongside a direct store is the classic exposed case: Amazon handles one channel flawlessly, and the other accrues uncollected tax in states the seller does not realise they are registered-eligible in.
Registered Means Filing
Once registered, the return is due whether or not you owe anything. Most states expect marketplace sales to be reported and then deducted, so a quarter where Amazon collected everything still needs a filing — see filing frequency and zero returns. Missed zero returns generate penalties entirely independent of tax owed.
Inventory Location and the Nexus Question
FBA's complication is that Amazon moves your inventory between fulfilment centres without asking, so goods you own can sit in states you have never dealt with. Whether that creates a filing obligation has been genuinely contested — several states assert that stored inventory is physical presence, and guidance has not landed identically everywhere.
What is not contested is the practical sequence, and it is worth following in order:
- Pull your inventory-by-state report from Seller Central. You cannot reason about exposure you have not measured, and most sellers are surprised by the list.
- Separate marketplace-collected from direct sales. Amazon collects and remits on marketplace sales in every state with a facilitator law, so your exposure lives in the direct channel rather than the Amazon one.
- Check each state's current position on stored inventory rather than assuming a uniform answer — this is where guidance most often differs from what a forum post said two years ago.
- Register where you conclude you have an obligation, then file zero returns. Registration without filing generates penalties independent of any tax owed.
Registration Is a Commitment, Not a Precaution
Sellers frequently register defensively in many states at once and then meet the cost: every registration creates a permanent filing obligation, including zero returns for periods with no sales, and most states penalise missed returns whether or not tax was due.
Where historical exposure already exists, a voluntary disclosure agreement usually beats registering and hoping. Registering typically invites the state to ask about prior periods with no limit on look-back; a VDA generally caps the look-back and abates penalties in exchange for coming forward. Closing a registration you no longer need has its own procedure — see how to close a sales tax account.
The Five-Step Method
- Pull your inventory placement report. Export inventory by fulfilment centre from Seller Central and map each location to its state. This is your physical nexus footprint.
- Separate marketplace sales from direct sales. Split revenue into orders Amazon collected tax on and orders you sold through your own channels. Only the second group is yours to collect on.
- Register where inventory sits. Physical presence has no threshold, so register in each state holding your stock rather than waiting to cross a sales figure.
- Configure collection on your own channels. Switch on destination-based collection in your own store for every state where you are registered.
- File in every registered state, including quiet ones. Report marketplace sales as required by each state and file a return even where Amazon collected everything, since registration creates the filing duty.
Continue the chain
- Economic nexus guide — thresholds, and why inventory bypasses them.
- Marketplace facilitator laws — what the platform is obliged to do.
- Crossed a threshold — what now — the ordered next steps.
- Etsy and eBay sales tax — the same split on other platforms.
Frequently asked questions
Quick answers to the most common questions users ask.
Does Amazon collect sales tax for FBA sellers?
Yes. Under marketplace facilitator laws, Amazon calculates, collects and remits sales tax on orders placed through its marketplace in every state that has such a law. That covers the tax on those specific orders — it does not discharge your own registration or filing obligations.
Does FBA inventory create nexus?
Generally yes. Inventory you own sitting in a warehouse is a physical presence, and physical nexus has no sales threshold to cross. Because Amazon moves stock between fulfilment centres without asking, sellers routinely acquire nexus in states they never targeted.
If Amazon collects the tax, why would I still register?
Because nexus and collection are separate questions. Nexus obliges you to register and file in that state; the facilitator law only shifts who collects on marketplace orders. Many states still expect a return from you, reporting the marketplace sales as exempt or already-collected.
What sales does Amazon not cover?
Anything outside the marketplace. Your own Shopify or WooCommerce store, wholesale orders, sales at markets or trade shows, and direct invoices are all yours to handle — and the nexus your FBA inventory created applies to them.
How do I find out which states hold my inventory?
Amazon provides inventory-by-location reporting in Seller Central. Pull it regularly rather than once: placement changes as Amazon rebalances stock, so the list of states you are physically present in is not static.
Do marketplace sales count toward economic nexus thresholds?
It depends on the state. Some count all sales into the state including marketplace orders, others exclude sales where the facilitator collected. The distinction decides whether your own direct sales have pushed you over, so check the specific rule.
References
- National Nexus Program and state nexus guidanceMultistate Tax Commission↩
- Marketplace facilitator and remote seller obligationsWashington State Department of Revenue↩
- Marketplace Facilitator Act guidanceCalifornia Department of Tax and Fee Administration↩
Primary sources are linked directly. Rates and thresholds change on their own schedules — always confirm against the issuing authority before relying on a figure.
Find out where you have nexus
Model revenue and inventory states against every threshold in one pass.
Related guides
Keep reading — these cover the next step in the same chain.
All rates, thresholds, and regulatory guidance cited on this page are sourced from official government publications and non-partisan research institutions.
State Departments of Revenue
California CDTFA
Official CA tax rates portal, address-specific lookup tools, and district tax publications.
cdtfa.ca.govTexas Comptroller
The official Texas sales tax rate locator, local jurisdiction database, and nexus guidance.
comptroller.texas.govNew York Tax & Finance
Official NY jurisdiction lookup for combined state, local, and MTA rates, and clothing exemptions.
tax.ny.govFlorida Dept. of Revenue
Official FL resource for state sales tax rates, county surtaxes, and annual tax holidays.
floridarevenue.comMyTax Illinois
Official Illinois Department of Revenue portal for address-based tax rate lookups and filings.
tax.illinois.govPennsylvania Revenue
Official PA portal for sales, use, and hotel occupancy tax rates and regulatory guidance.
revenue.pa.govOhio 'The Finder'
Official Ohio Department of Taxation tool for looking up rates by address, ZIP, or GPS coordinates.
thefinder.tax.ohio.govGeorgia Dept. of Revenue
Official Georgia sales and use tax rate charts and local jurisdiction tax distribution data.
dor.georgia.govNorth Carolina DOR
Official NCDOR portal for state, local, and transit tax rates by county and jurisdiction.
ncdor.govMichigan Treasury
Official Michigan Department of Treasury resources for the statewide 6% sales and use tax.
michigan.govFederal & National Sources
IRS Sales Tax Calculator
The official Internal Revenue Service tool for determining deductible state and local sales tax for federal income tax purposes.
irs.govU.S. Census Bureau
Official government repository for quarterly state and local tax revenue statistics and government finance data.
census.govSupreme Court — Wayfair Decision
The official government opinion for South Dakota v. Wayfair, Inc., establishing modern economic nexus standards for remote sellers.
supremecourt.govSBA Business Tax Guide
Official Small Business Administration guidance on understanding federal and state tax obligations for small business owners.
sba.govStreamlined Sales Tax Board
The official inter-governmental organization facilitating the simplification of sales tax administration across 24 member states.
streamlinedsalestax.orgProfessional & Industry Organizations
TaxesLedger is an independent educational tool. We are not affiliated with any government agency. Rate records include source metadata and verification status; always confirm with your jurisdiction's official Department of Revenue before filing. Last registry update: September 11, 2026.
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