Does FBA inventory really create nexus?

Yes, in most states. Physical presence of inventory is the textbook example of nexus. A handful of states have safe harbors for marketplace facilitator inventory, but most don't.

Do I need to register for sales tax in every state?

Amazon collects and remits sales tax in every state with a marketplace facilitator law (essentially all of them now). You may still owe income tax registration where you have nexus.

What about international sellers?

Non-US sellers using FBA in the US still create US nexus and typically owe US federal income tax on effectively connected income. A CPA experienced with non-resident filings is essential.

CPA for Amazon Sellers: FBA Nexus, Inventory, and Settlements

Amazon FBA sellers need a CPA who understands that FBA inventory creates physical nexus in every warehouse state, can reconcile Amazon settlement reports through A2X into clean accrual books, and tracks inventory through COGS correctly. Monthly bookkeeping plus advisory typically runs $400 to $1,200; returns $1,200 to $3,500.

Amazon's settlement reports net out fees, refunds, returns, and chargebacks into single deposits that look nothing like revenue. Without a tool like A2X or Link My Books in front of QuickBooks or Xero, the books drift fast. Worse, Amazon's FBA program rotates your inventory through fulfillment centers in dozens of states, and any state where your inventory sits creates physical nexus for sales tax and sometimes income tax. A CPA who works with FBA sellers handles both the data plumbing and the multi-state registration strategy, plus the entity choice (LLC vs S-corp) once net income makes the election worthwhile.

What's typically involved

We're expanding this page with the full playbook for amazon sellers: elections to make, common mistakes generalists miss, fee expectations, and the specific credentials to look for. In the meantime, the matching form below routes your situation to a CPA whose practice fits.

What CPA work looks like at the fee level

Service	Typical 2026 range
CPA hourly rate	$150 to $450 / hour
Schedule C (sole proprietor)	$190 to $800
Single-member LLC return	$300 to $1,500
S-corporation return (1120-S)	$1,200 to $3,500
Partnership return (1065)	$1,000 to $5,000+
C-corporation return (1120)	$1,500 to $4,000+

Disorganized records ("shoebox" engagements) typically increase fees by 1.5x to 2.0x.
Each additional K-1 partner usually adds roughly $300 to $500.
Ranges reflect entity type, bookkeeping state, and complexity. Quotes vary by region and CPA experience.

Full table with methodology lives in the 2026 CPA Compass Fee Benchmark.

Get matched with a CPA for amazon sellers

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TaxProMatch is an independent matching resource. We are not a CPA firm and do not provide tax, legal, or financial advice.

Frequently asked questions

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