Sales Tax Nexus for Non-Residents: When Your US LLC Must Collect Sales Tax

Sales tax nexus for non-residents is the legal connection that forces your US LLC to collect and remit a state's sales tax. Most non-resident founders trigger it not by where they form the company, but by crossing a state's "economic nexus" sales or transaction threshold — commonly around $100,000 in sales into that state (as of 2026).

If you run a US LLC from abroad, this is one of the most misunderstood obligations you face. Forming in Wyoming or Delaware does not, by itself, create a sales tax duty everywhere. Selling to customers in a specific state does. Below we explain how sales tax nexus for non-residents actually works, how to register for a seller's permit without an SSN, and how it differs completely from your federal filings.

Last updated: July 2026

What Is Sales Tax Nexus for Non-Residents? (Definition for Non-US Owners)

Sales tax nexus is the minimum level of connection between your business and a US state that gives that state the legal right to require you to collect its sales tax from customers and send it to the state's tax authority. Understanding sales tax nexus for non-residents matters because the rules are set by each individual state, not the federal government — there is no single national sales tax in the United States.

Sales tax is a consumption tax added at checkout and paid by the buyer. Your role as the seller is to act as a collection agent: you charge the correct rate, hold the money, and remit it on a schedule. Nexus is simply the trigger that turns that responsibility on. Two things create it: a physical presence in a state, or enough economic activity in that state.

For non-residents, the key insight is that nexus follows your customers and inventory, not your passport or your home country. A founder in Lagos, Manila, or Berlin can owe sales tax collection duties in Texas or California without ever setting foot there.

Physical Nexus vs Economic Nexus

There are two broad categories of nexus, and non-resident sellers can trigger either one.

Physical Nexus

Physical nexus comes from a tangible presence in a state. For remote founders, the most common cause is inventory stored in a warehouse — especially Amazon FBA fulfillment centers. If Amazon moves your goods into a warehouse in Pennsylvania, many states take the position that you now have physical nexus there. Other triggers include an office, employees, contractors, or a physical store. You do not need to live in the US to create physical nexus; your goods being there can be enough.

Economic Nexus

Economic nexus is based purely on sales volume. Since the 2018 US Supreme Court decision in South Dakota v. Wayfair, states can require out-of-state (and out-of-country) sellers to collect tax once they cross a threshold — generally $100,000 in sales or 200 separate transactions into that state in a year, though the exact figures vary and some states have dropped the transaction count. This is the rule that most digital and e-commerce non-resident sellers hit first. Always verify the current threshold for each state on its Department of Revenue website, because these numbers change.

Does Forming an LLC in Wyoming or Delaware Create Nexus There?

This is the single biggest myth we hear from non-resident founders, so let us be direct: no, simply forming your LLC in Wyoming or Delaware does not create sales tax nexus in that state. Your state of formation and your state of sales tax obligation are two separate things.

Wyoming and Delaware are popular formation states for reasons like privacy, low fees, and no state income tax — see our full breakdown of Wyoming vs Delaware for your LLC. But a registered agent address is not a "physical presence" that triggers sales tax collection. In fact, Delaware has no state sales tax at all, and Wyoming will only matter for sales tax if you actually sell to, or store inventory in, Wyoming.

The practical takeaway: choose your formation state for governance and cost reasons, then handle sales tax separately based on where your customers and inventory actually are. Do not assume you must register for a seller's permit in your formation state, and do not assume you are exempt everywhere else.

Economic Nexus Thresholds by State (Reference Table)

The table below shows representative economic nexus thresholds for a sample of common states, as of 2026. These figures change frequently — always confirm the current threshold and rules directly with each state's Department of Revenue before you rely on them.

State	Sales Threshold	Transaction Threshold	Notes
California	$500,000	None	Sales into CA only; no transaction count
Texas	$500,000	None	Statewide figure; single local use tax rate option
New York	$500,000	100 transactions	Must meet both sales and transaction tests
Florida	$100,000	None	Prior calendar year sales
Illinois	$100,000	200 transactions	Either threshold triggers nexus
Pennsylvania	$100,000	None	Common FBA warehouse state
Georgia	$100,000	200 transactions	Either threshold triggers nexus
Delaware	N/A	N/A	No state sales tax

Note that five states — Alaska, Delaware, Montana, New Hampshire, and Oregon — have no statewide sales tax, though some Alaska localities do impose a local sales tax. Verify the current figure for any state before registering.

How Non-Residents Register for a Sales Tax Permit Without an SSN

You do not need a Social Security Number to register for a state sales tax permit (also called a seller's permit or reseller's permit). You need your EIN. Here is the general process most non-resident founders follow:

1. Form your US LLC and get your EIN. Your EIN is the federal tax ID that stands in for an SSN on state forms. You can get an EIN without an SSN by filing Form SS-4 with the IRS by fax or mail — writing "Foreign" on line 7b if you have no SSN or ITIN.
2. Confirm you actually have nexus in the state. Do not register everywhere. Register where you have physical presence (like inventory) or where you have crossed the economic threshold. Registering in a state creates ongoing filing duties even when you owe $0.
3. Gather your business details. Most state portals ask for your EIN, legal LLC name, formation state, business address (your registered agent or home-country address generally works), NAICS business code, and responsible-party information.
4. Request a 147C letter if the portal needs EIN verification. Some states ask you to verify your EIN. A 147C letter re-verifies your existing EIN — request it from the IRS Business & Specialty Tax Line at 1-800-829-4933. This replaces the CP-575 confirmation letter if you have lost it.
5. Apply through the state's Department of Revenue portal. Each state has its own online system. Many permits are free; a few charge a small fee. Some states participate in the Streamlined Sales Tax (SST) system, which lets you register in multiple member states at once.
6. Set up collection and filing. Once approved, configure your store or marketplace to charge the correct rate, then file returns on the schedule the state assigns (monthly, quarterly, or annually) — even for zero-dollar periods.

Because you register with your EIN rather than an SSN, the process is fully accessible to non-residents. The harder part is usually knowing where and when to register, not the paperwork itself.

Marketplace Facilitator Laws: When Amazon or Etsy Collects for You

Here is genuinely good news for many non-resident sellers. Under marketplace facilitator laws, large platforms such as Amazon, Etsy, eBay, and Walmart are legally required to calculate, collect, and remit sales tax on your behalf for sales made through their marketplace. This applies in nearly every state that has a sales tax (as of 2026).

If you sell only through these marketplaces, the platform generally handles sales tax collection for you, and you may not need your own seller's permit in every state where you have economic nexus. However, several important caveats apply:

• Physical nexus still matters. If Amazon stores your FBA inventory in a state, you may still have a registration or reporting obligation there even though Amazon collects the tax.
• Your own website is different. Sales through your own Shopify or WooCommerce store are not covered by marketplace facilitator laws. You are responsible for collecting on those, so mixed sellers often still need permits.
• Some states still require registration. A few states want marketplace sellers registered even when the platform remits the tax. Check each state's current rule.

The practical rule: marketplace-only sellers have a much lighter burden, but "the marketplace handles it" is not a blanket exemption from every state's requirements.

Sales Tax Nexus vs Federal Filing Obligations (5472, Income Tax)

One of the most costly confusions is mixing up state sales tax with federal filings. They are completely separate systems, run by different authorities, with different deadlines and penalties. Collecting sales tax says nothing about your federal income tax, and filing your federal forms does nothing for sales tax.

Obligation	Authority	Who / When It Applies	Key Point
Sales tax collection	Individual US states	When you have physical or economic nexus in a state	You collect from the buyer and remit to the state; not your own tax
Form 5472 + pro forma 1120	IRS (federal)	Every foreign-owned single-member LLC, annually	Information report, due with Form 1120 (generally April 15, or Oct 15 with extension); $25,000 minimum penalty for missing it
Federal income tax	IRS (federal)	Depends on US-source income and activity	Many non-resident LLCs with no US "effectively connected income" owe $0 — but must still file

Two things every foreign-owned LLC owner should internalize. First, even a disregarded LLC with zero US tax must file Form 5472 attached to a pro forma Form 1120 each year, or face the $25,000 minimum penalty under IRC Section 6038A. Second, whether you owe income tax is a separate analysis — read our guide on whether non-resident LLCs pay US tax. Sales tax nexus does not create an income tax liability, and vice versa.

How to Track Your Nexus Exposure as a Remote Founder

Because nexus is decided state by state, tracking it is an ongoing task, not a one-time setup. Here is a practical approach for founders operating from abroad:

• Map your sales by ship-to state. Nexus is based on where your customers are, so pull a report of sales grouped by destination state at least quarterly.
• Watch for approaching thresholds. When a state's cumulative sales get within roughly 80% of its threshold, prepare to register so you are not caught out mid-year.
• Track your inventory locations. If you use FBA, download the report showing which state warehouses hold your goods; each new state can mean new physical nexus.
• Separate marketplace and direct sales. Keep marketplace-facilitated sales distinct from your own-website sales, since only the latter usually require you to collect.
• Use sales tax automation once you scale. Tools that plug into your store can monitor thresholds and file returns across states. Pair this with a proper US business bank account so your revenue, tax collected, and remittances stay cleanly separated.

Good records are your best defense. States can look back several years, so keeping clean, state-by-state sales data from day one saves painful reconstruction later.

What Happens If You Don't Register

Ignoring sales tax nexus does not make it disappear — the liability simply accrues silently. If a state later determines you had nexus and failed to collect, you can be held responsible for the tax you should have collected, plus penalties and interest, often going back to the date nexus began. Because you never charged customers, that money typically comes out of your own pocket.

Additional consequences can include losing a "good standing" position, complications when you try to sell the business (buyers run sales tax due diligence), and difficulty getting into relief programs later. Many states offer voluntary disclosure agreements (VDAs) that reduce look-back periods and waive penalties if you come forward before they contact you — a valuable option if you discover past exposure. The cost of registering on time is almost always far lower than cleaning up years of unregistered sales.

This guide is general information, not legal or tax advice — consult a licensed attorney or CPA for your situation.

Frequently Asked Questions

Do I need to collect US sales tax if I live outside the United States?

Possibly yes. Sales tax nexus for non-residents depends on where your customers and inventory are, not where you live. If you cross a state's economic threshold or store goods there, you may have to collect that state's sales tax even though you have never visited the US. Check each state's current rules.

Can I register for a sales tax permit without an SSN?

Yes. State sales tax permits are issued using your EIN, not a Social Security Number. Non-resident founders get an EIN from the IRS by filing Form SS-4, then use that number to register on each state's Department of Revenue portal. Some states may ask for a 147C letter to verify your EIN.

Does forming a Wyoming or Delaware LLC mean I owe sales tax there?

No. Your formation state and your sales tax obligations are separate. A registered agent address does not create sales tax nexus. Delaware has no state sales tax at all, and Wyoming only matters if you actually sell into or store inventory in Wyoming. Sales tax follows your customers and goods, not your paperwork.

If Amazon collects sales tax for me, am I fully covered?

Mostly, for sales made through Amazon. Marketplace facilitator laws require Amazon to collect and remit tax on marketplace sales. But sales through your own website are not covered, FBA inventory can still create physical nexus, and a few states still require registration. Mixed sellers often still need their own permits.

Is sales tax the same as the Form 5472 filing I keep hearing about?

No, they are entirely different. Form 5472 is a federal IRS information return that every foreign-owned single-member LLC must file annually, with a $25,000 minimum penalty for non-filing. Sales tax is collected for individual states from your buyers. Meeting one obligation does not satisfy the other at all.

What is BOI reporting and do I still need to file it?

Beneficial Ownership Information (BOI) reporting is a separate FinCEN requirement, not a sales tax matter. FinCEN narrowed these rules in 2025, largely limiting them to foreign reporting companies. Because this area is volatile, always verify the current FinCEN.gov requirement before acting rather than relying on any fixed deadline.

Ready to Launch Your US LLC the Right Way?

UpToNova forms US LLCs for non-residents with no SSN, no US address, and no travel required — founders served across 50+ countries. For a flat $200 service fee plus the state filing fee, you get your LLC filing, one year of registered agent, EIN filing (obtained without an SSN), an operating agreement, and guidance to open a US business bank account with Mercury, Relay, or Wise. Formation typically completes in about 3 days.

Start on the right foundation so sales tax registration, banking, and federal filings are all straightforward from day one. See transparent pricing and start your US LLC today.