Economic Nexus Thresholds by State for Foreign Sellers: The Complete US Sales Tax Compliance Guide

Selling into the United States from abroad has never been easier for cross-border e-commerce brands, SaaS companies, and dropshippers. However, many non-US business owners operate under a dangerous misconception: assuming that having no US company, no physical office, and no domestic warehouse exempts them from state taxes.

Ever since the landmark US Supreme Court ruling in South Dakota v. Wayfair, Inc., state tax departments have enforced economic nexus. This means that once an out-of-state or non-resident merchant exceeds a designated revenue or transaction volume delivered to customers in a specific state, a tax collection obligation is legally created.

Foreign sellers receive no special exemption under US state tax laws.

Understanding the economic nexus thresholds by state for foreign sellers is essential to avoid retroactive audits, crippling penalty interests, and frozen marketplace accounts.

1. What Foreign and International Sellers Must Know About US Sales Tax

Foreign Company (UK, EU, China, India, Canada, etc.)
                          │
          Ships Goods / Delivers Digital Products to US Buyers
                          │
                          ▼
            Exceeds State Economic Threshold (e.g., $100k)
                          │
                          ▼
         Tax Obligation Created (Economic Nexus Established)
                          │
          ┌───────────────┴───────────────┐
          ▼                               ▼
[Collect State Sales Tax]        [Register & Remit Directly]

1. Does Economic Nexus Apply Without a US Entity (EIN/SSN)?

Yes. State revenue departments assess taxability based on the destination of the customer (ship-to address), not where your business entity is incorporated. International companies based in Europe, the UK, Asia, or Canada are subject to the same thresholds and collection mandates as a domestic company operating out of Florida or Texas.

2. Physical Nexus vs. Economic Nexus (The Amazon FBA Trap)

• Physical Nexus: Created when you have tangible assets in a state. If you use Amazon FBA (Fulfillment by Amazon) or a US 3PL warehouse, the mere presence of your inventory sitting on shelves in California, New Jersey, or Illinois establishes an immediate physical nexus, overriding economic thresholds.
• Economic Nexus: Purely transaction- and revenue-based. You trigger this even if you ship products entirely via direct air freight (DDU/DDP) from overseas without storing a single box in the US.

3. Marketplace Facilitator Laws vs. Direct Sales (Shopify/WooCommerce)

Most major US platforms—including Amazon, eBay, Walmart, and Etsy—operate under Marketplace Facilitator Laws. These platforms automatically calculate, collect, and remit state sales tax on your behalf.

• The Catch for Multi-Channel Sellers: In many states, marketplace sales still count toward your economic threshold calculation.
• Example: If you sell $95,000 via Amazon (marketplace) and $10,000 via your independent Shopify store into a state with a $100,000 threshold, you cross the line and must register with that state to collect sales tax on your Shopify storefront.

2. Master Table: Economic Nexus Thresholds by State for Foreign Sellers

The majority of US states standardise their economic nexus around $100,000 in gross or retail sales. Note that most states have eliminated the standalone “200 transaction” count rule to lessen the compliance burden on low-ticket sellers.

State	Revenue / Dollar Threshold	Transaction Count Threshold	Measurement Period	Marketplace Sales Count Toward Threshold?
Alabama	$250,000	None	Previous calendar year	Excluded
Alaska	$100,000 (ARSSTC local)	200 transactions	Current or preceding calendar year	Included
Arizona	$100,000	None	Current or preceding calendar year	Excluded
Arkansas	$100,000	200 transactions	Current or previous calendar year	Included
California	$500,000	None	Preceding or current calendar year	Included
Colorado	$100,000	None	Current or previous calendar year	Included
Connecticut	$100,000	200 transactions	Prior 12-month period	Included
Delaware	No State Sales Tax	N/A	N/A	N/A
Florida	$100,000	None	Previous calendar year	Excluded
Georgia	$100,000	None (eliminated 200-tx rule)	Current or previous calendar year	Excluded
Hawaii	$100,000	200 transactions	Current or previous calendar year	Included
Idaho	$100,000	None	Current or previous calendar year	Included
Illinois	$100,000	None (200 tx dropped)	Prior 12-month period	Included
Indiana	$100,000	None (200 tx dropped)	Current or previous calendar year	Included
Iowa	$100,000	None	Current or previous calendar year	Included
Kansas	$100,000	None	Current or previous calendar year	Included
Kentucky	$100,000	None (200 tx dropped)	Current or previous calendar year	Included
Louisiana	$100,000	None (200 tx dropped)	Current or previous calendar year	Excluded
Maine	$100,000	None	Current or previous calendar year	Excluded
Maryland	$100,000	200 transactions	Current or previous calendar year	Included
Massachusetts	$100,000	None	Prior 12-month period	Included
Michigan	$100,000	200 transactions	Current or previous calendar year	Included
Minnesota	$100,000	None (200 tx dropped)	Prior 12-month period	Included
Mississippi	$250,000	None	Prior 12-month period	Included
Missouri	$100,000	None	Preceding 12-month period	Included
Montana	No State Sales Tax	N/A	N/A	N/A
Nebraska	$100,000	None (200 tx dropped)	Current or previous calendar year	Included
Nevada	$100,000	200 transactions	Current or previous calendar year	Included
New Hampshire	No State Sales Tax	N/A	N/A	N/A
New Jersey	$100,000	200 transactions	Current or previous calendar year	Included
New Mexico	$100,000	None	Current or previous calendar year	Included
New York	$500,000 AND 100 tx	100 transactions (Both required)	Preceding 4 quarters	Included
North Carolina	$100,000	None	Current or previous calendar year	Included
North Dakota	$100,000	None	Current or previous calendar year	Excluded
Ohio	$100,000	None (200 tx dropped)	Current or previous calendar year	Included
Oklahoma	$100,000	None	Current or previous calendar year	Included
Oregon	No State Sales Tax	N/A	N/A	N/A
Pennsylvania	$100,000	None	Preceding 12-month period	Included
Rhode Island	$100,000	200 transactions	Preceding calendar year	Included
South Carolina	$100,000	None	Current or previous calendar year	Included
South Dakota	$100,000	None	Current or previous calendar year	Excluded
Tennessee	$100,000	None	Prior 12-month period	Included
Texas	$500,000	None	Preceding 12 calendar months	Included
Utah	$100,000	None	Current or previous calendar year	Excluded
Vermont	$100,000	None (200 tx dropped)	Preceding 12-month period	Included
Virginia	$100,000	200 transactions	Current or previous calendar year	Included
Washington	$100,000	None	Current or previous calendar year	Included
West Virginia	$100,000	200 transactions	Current or previous calendar year	Included
Wisconsin	$100,000	None	Current or previous calendar year	Excluded
Wyoming	$100,000	None	Current or previous calendar year	Excluded

(Note: The 5 states with no statewide sales tax are Alaska, Delaware, Montana, New Hampshire, and Oregon—often called the NOMAD states. However, localized sales taxes in Alaska are coordinated through the ARSSTC commission).

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3. The 3 Types of Nexus Triggers: “Or”, “And”, & “Dollar-Only”

Foreign business owners must check the exact legal wording of the target state’s statute:

1. Dollar-Only Thresholds (The Modern Standard):States like Texas, California, Washington, and Illinois base liability purely on total gross or retail sales ($100k or $500k) regardless of how many individual packages were delivered.
2. “OR” Thresholds (Volume OR Transactions):States like New Jersey and Michigan enforce an “OR” rule. If you sell $20,000 of low-cost goods across 205 transactions, you have established economic nexus, even though you did not hit $100,000.
3. “AND” Thresholds (Both Criteria Required):New York enforces a dual-condition rule: you only cross nexus if you hit $500,000 AND 100 separate transactions delivered into the state within the prior four sales tax quarters.

4. How Foreign Sellers Can Register for US Sales Tax (Without SSN)

If you cross an economic threshold in a direct channel (Shopify, digital downloads, SaaS), you must complete the foreign seller registration sequence:

[Cross State Economic Nexus Threshold]
                  │
                  ▼
[Obtain a US Federal Employer Identification Number (FEIN)]
(Foreign companies can acquire this via IRS Form SS-4 by fax/phone without an SSN)
                  │
                  ▼
[Apply for State Sales Tax Permit / Certificate of Authority]
                  │
                  ▼
[Configure Destination-Based Tax Automation (Stripe Tax, Avalara, TaxJar)]
                  │
                  ▼
[File Returns Monthly, Quarterly, or Annually]

1. Get an IRS Employer Identification Number (EIN): Non-resident corporate entities can apply by submitting IRS Form SS-4. You do not need a US Social Security Number (SSN) or Individual Taxpayer Identification Number (ITIN); you mark “Foreign” on the form.
2. Register with the State Department of Revenue: Most state registration portals accept foreign corporate addresses and EINs. A few states (like California and Texas) may require foreign entity registration or a nominal bond if you lack a domestic banking presence.
3. Streamlined Sales Tax (SST) Registration: Foreign businesses selling nationwide can use the Streamlined Sales and Use Tax Agreement (SST) central registration system to register across 24 participating states in a single submission.

5. What Happens If a Foreign Seller Ignores Economic Nexus?

Because foreign entities have no domestic physical footprint, some international brands assume state tax departments cannot enforce compliance.

This assumption is flawed for three reasons:

• No Statute of Limitations: If you never register for a sales tax permit, the state’s audit statute of limitations never begins. States can assess back taxes 5 to 7 years later, adding statutory interest (often 10%–18% per year) and severe failure-to-file penalties.
• Frozen Merchant Processors: State revenue departments frequently subpoena payment processors (Stripe, PayPal, Shopify Payments) to identify remote merchants shipping significant volume into their jurisdiction. States can levy merchant payouts directly at the processing level.
• Exit Valuation Reduction: If you decide to sell your e-commerce brand to an aggregator or private equity firm, sales tax audits during technical due diligence can reduce your valuation or stall an acquisition.

Frequently Asked Questions (FAQ)