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Complete Guide Non-Resident Ecommerce Sellers

US Sales Tax for Non-Resident
Ecommerce Sellers:
Complete Compliance Guide

Who this is for: Non-resident individuals and NRPs running US LLCs on Amazon FBA, Shopify, or through third-party logistics providers, selling to US customers.

What you will learn: What triggers a US sales tax obligation, where marketplace facilitator laws protect you and where they do not, how the IRS tracks your sales volume, and how state-level activity connects to federal tax exposure.

Why it matters

Your 1099-K is already sitting in an IRS database. The question is not whether they can see your sales - it is whether your filings match what they see. For NRP sellers earning USD, a compliance gap is not just a tax problem. It puts your payment accounts, your business standing, and your ability to scale at real risk.

15-20 min read
Compliance Guide
Updated 2026
FBA / Shopify / 3PL Sellers
Quick Navigation
01 Do Non-Resident Sellers Owe US Sales Tax? 02 Physical vs. Economic Nexus: The Two Triggers 03 Marketplace Facilitator Laws: What Is Covered and What Is Not 04 The 1099-K: The IRS Already Has Your Numbers 05 Federal ECI and USTOB Risks 06 The Karachi/Dubai Scenario 07 Common Compliance Gaps for NRP Entrepreneurs 08 Compliance Obligations Overview 09 Related Guides 10 Frequently Asked Questions

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At a Glance

Key Takeaways

Non-resident sellers owe US sales tax the moment nexus is established - living abroad changes nothing

Amazon FBA creates physical nexus in every state where your inventory is stored, automatically, without your knowledge or consent

Marketplace facilitator laws cover Amazon sales in most states, but cover nothing outside Amazon's platform - your Shopify store is entirely your responsibility

The IRS 1099-K reporting threshold dropped to $600 - nearly every active seller is now on record

Sales tax nexus in a state is primary evidence the IRS uses to classify your business as "Engaged in a Trade or Business in the US" (USTOB), which triggers federal income tax obligations

A 1099-K showing $300,000 in sales alongside incomplete state filings is a discrepancy IRS systems can flag automatically

Ignoring nexus is not a low-risk strategy. It is a documented compliance failure with a timestamp

Audience

Who This Guide Is For / Not For

This guide is for you if:
  • You are a non-resident individual or foreign business owner running a US LLC
  • You sell physical products through Amazon FBA, Shopify, or other US-facing channels
  • You are based in Pakistan, Dubai, the UK, or elsewhere - and your customers are in the US
  • You want to understand your obligations before your sales volume attracts attention
This guide is not for:
  • US citizens or US residents filing as domestic sellers
  • Sellers looking for state-by-state registration walkthroughs or tax rate tables
  • Businesses researching sales tax software platforms
  • B2B sellers focused on exemption certificate management
Self-Assessment

Quick Nexus Test

Before reading further, run through these three questions:

1
Do you use Amazon FBA?

Yes - you have physical nexus in every state where Amazon stores your inventory.

2
Do you sell on Shopify or any platform other than Amazon?

Yes - you are the seller of record and responsible for collection on those sales.

3
Has your US payment processor received more than $600 from your business this year?

Yes - the IRS has a 1099-K on file for your LLC. Your sales volume is documented.

If you answered yes to any of these, this guide applies directly to your situation.
Section 01

Do Non-Resident Sellers Owe US Sales Tax?

Defining Nexus for Foreign Entities

Nexus is the legal connection between your business and a US state that gives that state the right to require you to collect and remit sales tax. A useful way to think about it: you have a US tax obligation if you have People, Products, or Profits (thresholds) in a state. Any one of those three is enough.

It is not about citizenship. It is not about where you live. It is about whether your business activity crosses a defined threshold inside that state - through physical presence, sales volume, or both. For non-resident sellers, nexus is triggered exactly the same way it is for any US domestic business.

Why Your Location Abroad Does Not Exempt You

A lot of sellers in Karachi, Dubai, or London assume that operating from outside the US creates some kind of natural exemption. It does not. The US sales tax system is built around the destination of the sale and where business activity takes place - not where the seller lives.

If your inventory sits in a warehouse in Ohio, Ohio considers your business present there. If you sell above a state's defined threshold to customers in that state, that state treats you as an economic participant in its market. Your passport is irrelevant to that calculation. The situs of your inventory - the physical location where your goods sit - is what matters to the state.

Key Principle

The situs of your inventory - the physical location where your goods sit - is what matters to the state. Your passport is irrelevant to that calculation.

Section 02

Physical vs. Economic Nexus: The Two Triggers

There are two ways your business becomes obligated to collect US sales tax in a state. Understanding both - and how they interact - is essential for any non-resident seller operating in the US market.

Trigger 01

Physical Nexus

Tangible presence inside the state - inventory, employees, offices, or warehouses.

Physical nexus is established through tangible presence in a state. For FBA sellers the rule is straightforward: your inventory is legally "you" in that state.

Inventory stored in a warehouse (including Amazon FBA)
Employees or contractors based in the state
Offices, showrooms, or any fixed place of business
Third-party logistics warehouse storing your goods
Takes compliance priority - no exceptions
Trigger 02

Economic Nexus

Sales volume or transaction count crossing a state-defined threshold - no physical presence needed.

Post-Wayfair, states can impose collection requirements based purely on sales volume or transaction count. Your growing US revenue will pull you in.

$100,000 in annual sales to customers in that state
200 separate transactions to buyers in that state
Applies regardless of where you are physically located
Adopted as the enforced legal standard across nearly every US state
Grows with your sales - even from abroad
$100K
Annual Sales Threshold
Most states - economic nexus trigger
200
Transactions Threshold
Annual transaction count per state
45+
States With Economic Nexus
Adopted post-Wayfair decision
2018
South Dakota v. Wayfair
The ruling that changed everything
FBA Sellers - Read This Carefully

How Amazon FBA Creates Physical Nexus Automatically

Think of your FBA inventory as a permanent GPS beacon inside the US tax system. When you send stock to Amazon's fulfillment network, Amazon distributes it across multiple warehouses in multiple states. You do not choose which states. Amazon does.

Your goods could be sitting in Texas, Pennsylvania, and Arizona at the same time - and you have physical nexus in all three. A seller in Karachi who has never visited the US still has physical nexus in every state where Amazon stores their goods. Physical nexus always takes compliance priority over economic nexus - if your inventory is there, you cannot argue your way out of the obligation.

Legal Background

Economic Thresholds: The Wayfair Decision for Remote Sellers

The 2018 Supreme Court decision in South Dakota v. Wayfair changed the rules for sellers with no physical presence at all. Before Wayfair, a state could only impose sales tax obligations on sellers with a physical footprint inside its borders. After Wayfair, states can impose collection requirements based purely on sales volume or transaction count. Most states now set their economic nexus threshold at $100,000 in annual sales or 200 transactions within the state. The impact on non-resident sellers is direct: growing your US sales volume will pull you into economic nexus territory in multiple states, regardless of where you are located and regardless of whether you have a single box of inventory anywhere in the US. This is not a technicality. It is the enforced legal standard across nearly every US state today.

Section 03

Marketplace Facilitator Laws: What Is Covered and What Is Not

Marketplace facilitator laws require platforms like Amazon, eBay, and Etsy to collect and remit sales tax on behalf of third-party sellers in states that have adopted these rules. For Amazon FBA sellers, this provides real relief. Amazon handles collection and remittance in the vast majority of US states for sales made through its marketplace.

Common Mistake - Read This

This is where many non-resident sellers stop reading. That is a mistake.

Marketplace facilitator laws are a partial protection, not a complete shield. Treating them as a full solution is one of the most common - and costly - errors non-resident sellers make.

Protected

What Marketplace Facilitator Laws Cover

Sales made through the platform's own marketplace

  • Amazon sales - tax collected and remitted by Amazon in most states
  • eBay sales - marketplace facilitator rules apply in covered states
  • Etsy sales - platform handles collection and remittance
  • Walmart Marketplace - facilitator rules apply where enacted
Not Covered - Your Responsibility

What Marketplace Facilitator Laws Do Not Cover

Anything outside the qualifying marketplace platform

  • Your Shopify store - you are seller of record on every transaction
  • Direct website sales - full nexus analysis and collection required
  • 3PL or non-Amazon warehouse shipments - no platform protection
  • Wholesale or B2B sales made outside a qualifying platform
  • States not covered by marketplace facilitator legislation

Remaining Obligations for Shopify and Direct Sales

Marketplace facilitator laws only cover sales made through the facilitating platform. If you run a Shopify store alongside your Amazon business, those sales are not covered. You are the seller of record for every Shopify transaction. You are responsible for determining nexus, collecting tax where required, and remitting it to the relevant states.

A
Amazon FBA Sales
Largely covered

Amazon collects and remits in most states. Gaps remain in non-covered states, and the protection applies only to the Amazon platform - nothing else.

vs
S
Shopify / Direct Sales
Your full responsibility

You are the seller of record on every transaction. Nexus analysis, collection, and remittance are entirely your obligation - no platform coverage exists.

Key Insight

A seller running both an Amazon store and a Shopify site is in a split compliance situation: Amazon handles one side, but the Shopify side is entirely their own responsibility. This is one of the most consistently overlooked obligations among non-resident ecommerce sellers.

The Danger of Private-Label and Cross-State Dropshipping

Sellers using third-party logistics providers outside of Amazon face an additional layer of exposure. When you store inventory in a non-Amazon warehouse or ship directly from a 3PL to customers across state lines, marketplace facilitator protection does not apply. You are directly responsible for nexus analysis and tax collection in every state where your inventory is stored or your sales meet economic thresholds.

Drop Shipping Warning

Drop shipping sales tax for non-residents follows the same nexus rules. If the goods originate from a US warehouse - even one owned by a third party - that location can establish physical nexus for your business. Private-label sellers expanding beyond Amazon to their own website or wholesale partners need to map nexus exposure independently and on an ongoing basis.

Section 04

The 1099-K: The IRS Already Has Your Numbers

Reporting Thresholds for Stripe, PayPal, and Wise

When a US payment processor - Stripe, PayPal, Wise, or similar - processes payments for your business and the total crosses $600 in a calendar year, they are required to issue a Form 1099-K. This form is sent to you. A copy goes directly to the IRS.

Stripe
Issues 1099-K at $600+
PayPal
Issues 1099-K at $600+
Wise
Issues 1099-K at $600+
Similar Processors
Same rule applies
Old Threshold
$20K
Previous IRS reporting
threshold for 1099-K
Changed
Current Threshold
$600
Nearly every active seller
is now on IRS record
Applies Now - Every Year
Stop Sign

The threshold used to be $20,000. It is now $600. This means virtually every active non-resident seller with a US LLC is now generating an IRS record every single year. This is not a future risk. It is happening now, in every active account.

This creates two concrete problems:

1

Credible Ignorance Is Gone

It removes any credible claim of ignorance about your US sales volume. The IRS has documented proof of what your business collected - by year, by processor.

2

Data Reconciliation Risk

If your 1099-K shows $50,000 in gross sales but your state sales tax filings only account for $10,000 - because Amazon's marketplace facilitator coverage handled the rest - you need documentation to explain that gap. Without it, the discrepancy flags automatically.

Real-World Example

What a Reconciliation Gap Looks Like

A 1099-K on file with the IRS, inventory distributed across multiple FBA states, and a Shopify store running alongside Amazon creates visible discrepancies that IRS systems flag automatically.

IRS 1099-K Shows
$300K
Gross sales - Amazon + Shopify combined
vs
State Filings Account For
$10K
Only Shopify - Amazon MFL not documented
$290K Gap Needs documentation explaining marketplace facilitator coverage, exempt sales, and returns - or it looks like underreporting to automated IRS systems.
For NRP Entrepreneurs

For NRP entrepreneurs using their US LLC to receive PayPal or Stripe payments, this reporting applies regardless of where the LLC owner lives. The US business entity is the reporting anchor. The IRS sees the EIN. They do not need your address to open a file.

Section 05

Beyond Sales Tax: Federal ECI and USTOB Risks

Most sales tax guides stop at the state level. This one does not, because stopping there leaves the most important risk unaddressed. State presence - sales tax nexus - is the primary evidence the IRS uses to argue that your business is "Engaged in a Trade or Business in the United States" (USTOB).

The Direct Link Between State Nexus and Federal Exposure

1
Sales Tax Nexus Established
FBA inventory in state warehouses, or economic threshold crossed
State Level
2
USTOB Classification Triggered
Same physical presence used as primary IRS evidence
USTOB
3
ECI - Federal Income Tax Applies
Graduated US rates + Form 1040-NR filing required
Federal Level

When USTOB is established, your US income is reclassified as Effectively Connected Income (ECI). ECI is taxed at graduated US income tax rates, not the flat rates that apply to passive income. It also triggers a requirement to file a US federal income tax return on Form 1040-NR.

State Track

Sales Tax Nexus

Established by FBA inventory in state warehouses. Creates obligation to collect and remit state sales tax. This is the same physical presence that informs the federal USTOB analysis.

Federal Track

USTOB and ECI

The IRS uses state physical presence as primary evidence. When USTOB is found, US income becomes ECI - taxed at graduated rates and reportable on Form 1040-NR.

State obligations and federal exposure are not separate tracks. They are connected - and activity on one directly informs the other.
See Also

For more on how ECI and FDAP classifications work, see our ECI, FDAP and Withholding Guide. For federal filing requirements specific to non-residents, refer to our IRS Requirements for Non-Residents guide.

ECI, FDAP and Withholding Guide
How US-sourced income is categorized and taxed at the federal level
IRS Requirements for Non-Residents
Individual income tax filing for foreign entrepreneurs

How State Presence Impacts Form 1040-NR Requirements

If your US sales activity - through FBA storage, Shopify volume, or marketplace participation - rises to the level of USTOB, you are required to file Form 1040-NR and report your ECI. The filing obligation exists regardless of whether tax is ultimately owed. Failing to file when required is its own compliance issue, separate from the underlying tax.

Penalty Starts At
$25K
Per violation
Form 5472

Form 5472 Filing Requirements

Non-resident-owned US LLCs are also subject to Form 5472 filing requirements. The penalty for failing to file Form 5472 starts at $25,000 per violation. This is a separate obligation from sales tax and income tax, and it is frequently missed by sellers who set up their LLC without professional guidance.

Section 06

The Karachi / Dubai Scenario

Real-World Situation

You sell $10,000 on Amazon and $2,000 on Shopify in a given month.

Amazon Sales
$10,000 / month
Shopify Sales
$2,000 / month
Amazon MFL Coverage
45 states handled
Payment Processor
Stripe - 1099-K issued

Who handles the remaining states Amazon does not cover?

Who handles the Shopify sales?

Amazon Side

Mostly handled - gaps remain

Amazon collects and remits sales tax for 45 states automatically under marketplace facilitator laws. You may have limited exposure in the states Amazon does not cover.

Largely handled by Amazon
Shopify Side

Your full responsibility

You are the seller of record in every state where you have nexus. If your total annual sales to customers in a state exceed that state's economic nexus threshold, you owe collection and remittance regardless of your platform.

Entirely your obligation
The 1099-K View

IRS sees the total - both combined

Your Stripe account has processed more than $600. A 1099-K is going to the IRS. It shows your combined gross sales - Amazon and Shopify together. If you only have documentation for the Amazon side, you have a visible gap.

Visible to IRS systems
The Reality for NRP Sellers Right Now
The Amazon side feels handled. And for most states, it largely is - marketplace facilitator coverage is real and substantial.
The Shopify side feels small. $2,000 a month does not seem like the kind of number that attracts attention - but it compounds, and every dollar is unprotected.
The 1099-K treats both together. The IRS sees the total. This is the situation many NRP sellers are in right now.
Section 07

Common Compliance Gaps for NRP Entrepreneurs

01
Assuming Amazon handles everything
Most Common

Amazon's marketplace facilitator coverage is broad but not universal. It covers nothing outside of Amazon's own platform. Sellers running any additional channel - Shopify, a direct website, wholesale, or a 3PL - carry direct liability for those sales.

02
Overlooking multi-channel growth
Predictable Pattern

There is a predictable pattern: start on Amazon, add Shopify, explore private label or wholesale. Each new channel introduces a new layer of nexus exposure that needs separate analysis. The compliance footprint grows with the business.

03
Treating the 1099-K as irrelevant
Costly Error

The 1099-K is issued to the US LLC and reported to the IRS regardless of where the owner lives. It is not a domestic document for domestic sellers. It is a record of your business's US-sourced activity, and it is very relevant.

04
Failing to reconcile 1099-K totals against state filings
Flags Automatically

If your 1099-K gross amount and your state sales tax filings do not align, you need documentation explaining why. Marketplace facilitator coverage, exempt sales, and returns all affect this. Without that documentation, the gap looks like underreporting.

05
Not connecting sales tax nexus to federal income tax
Partial Compliance

Sellers with nexus across multiple FBA states may already meet the threshold for USTOB classification at the federal level. Managing the state side while ignoring the federal side is partial compliance - and partial compliance carries its own risks.

06
Setting up a US LLC without a professional structure review
Unknown Exposure

Many NRP sellers build their US LLC based on general advice from online communities. Without a review of their specific business model - FBA plus Shopify, plus a 3PL, plus a foreign-owned structure - they often carry obligations they are not even aware of. For entity-level tax obligations, see our US Taxes for Foreign-Owned Companies guide.

Is This Situation Relevant to You?

Use this table to assess your exposure level based on your current business setup.

Your Situation Exposure Level
Amazon FBA only, all sales through Amazon marketplace Moderate - MFL covers most states, gaps remain
Amazon FBA plus Shopify or direct website High - dual channel, separate obligations on non-Amazon sales
3PL storage outside Amazon High - physical nexus in 3PL states, no MFL protection
Drop shipping from a US warehouse High - physical nexus rules apply, no platform coverage
Sales exceeding $100,000 to customers in a single state High - economic nexus threshold met
1099-K issued by Stripe, PayPal, or Wise Documented - IRS has your sales data on file
US LLC with no professional nexus review Unassessed - exposure is unknown, not absent
Already in Exposure Territory?

Your Compliance Gap Is Already Documented

A 1099-K on file, FBA inventory across multiple states, and a Shopify store running alongside Amazon is not a simple situation. If you have not had a professional nexus review, that review is already overdue.

Nexus mapping across all channels 1099-K reconciliation support Federal ECI and USTOB analysis Non-resident LLC structure review
WhatsApp Us
Section 08

Compliance Obligations Overview

This is not a registration walkthrough. It is a high-level map of what non-resident ecommerce sellers are responsible for maintaining on an ongoing basis.

01
Sales Tax Collection

Where nexus exists and marketplace facilitator laws do not apply, you are responsible for collecting the correct sales tax from buyers at the point of sale. This obligation is yours, not your platform's.

Ongoing
02
Sales Tax Remittance

Collected tax must be filed and remitted to each relevant state on that state's required schedule - monthly, quarterly, or annually depending on your volume in that state.

Per-State Schedule
03
1099-K Reconciliation

Your state filings and your 1099-K totals should align. Where they do not, documentation explaining the difference - marketplace facilitator coverage, exempt sales, returns - must be available.

Annual - IRS Record
04
Federal Income Tax Filing

If your US business activity qualifies as USTOB, you are required to file Form 1040-NR and report ECI. This is a federal obligation, separate from state sales tax, and governed by entirely different rules.

Form 1040-NR
05
Form 5472 Filing

Foreign-owned US LLCs with reportable transactions are required to file Form 5472. Non-filing penalties start at $25,000. This obligation exists regardless of whether income tax is owed.

$25,000 Penalty
06
Ongoing Nexus Monitoring

As your sales grow and you add new channels or fulfillment locations, your nexus footprint changes. This is not a one-time assessment.

See Compliance and Reporting for Non-Residents Continuous
Get Expert Help

Need Help Mapping Your Sales Tax Exposure?

Sales tax compliance for non-resident ecommerce sellers is not a one-form process. It requires mapping your fulfillment channels, your sales volume by state, your payment processors, your platform mix, and how all of that connects to your federal tax position. A gap in any one of these areas creates a documented compliance risk that grows as your sales do.

Fulfillment channel mapping across all platforms
Sales volume analysis by state
Payment processor and 1099-K reconciliation review
Federal ECI and USTOB exposure analysis
Non-resident LLC structure and Form 5472 review
Platform mix assessment - Amazon, Shopify, 3PL

A 1099-K on file with the IRS, inventory distributed across multiple FBA states, and a Shopify store running alongside Amazon is not a simple situation. It requires someone who understands both state-level nexus analysis and the federal exposure that follows from it - not a general accountant.

If your US ecommerce business is generating consistent revenue and you have not had a professional nexus review, that review is already overdue.

Get a compliance review specific to your business structure, your channels, and your residency status.

Specific to your business structure, channels, and residency status

FAQ

Frequently Asked Questions

The questions non-resident ecommerce sellers ask most frequently about US sales tax obligations, nexus, and the connection to federal income tax.

  • Yes, if nexus is established. Your personal location is not the deciding factor. Nexus comes down to your business activity inside the US - where your inventory is stored, how much you sell, and which states your customers are in. Living in Karachi or Dubai does not erase an obligation created by a warehouse sitting in Ohio.

  • Amazon collects and remits sales tax in most US states under marketplace facilitator laws, but not every state is covered - and this protection only applies to sales made through Amazon's own platform. Anything you sell through Shopify, a direct website, or any other channel is your responsibility entirely.

  • Yes, and this is a connection most sellers miss. The physical presence that creates sales tax nexus - your inventory in an FBA warehouse - is the same evidence the IRS uses to establish USTOB status. Once USTOB is established, your US income becomes ECI, taxed at graduated rates and reportable on Form 1040-NR.

  • Yes. Your FBA inventory is held in Amazon warehouses across the US. Every state where Amazon stores your goods is a state where you have physical nexus - regardless of your residency or your LLC's state of registration. This applies even if you have never set foot in the US.

  • When your US payment processor issues a 1099-K, it gets filed with the IRS under your LLC's EIN. It documents your gross sales volume for that year, and it applies to non-resident-owned LLCs exactly the same as any domestic entity. The IRS has a record of your sales activity. What matters next is whether your filings account for it correctly.

  • Most states have adopted marketplace facilitator laws, but coverage is not universal and the specifics vary by state. For states that are not covered, or for any sales made outside a qualifying marketplace platform, you remain directly responsible for collection and remittance.

  • Physical nexus is created by tangible presence in a state - inventory, employees, a warehouse. It takes compliance priority: if your goods are there, the obligation exists, full stop. Economic nexus is created by crossing a sales volume or transaction threshold in a state, typically $100,000 in annual sales or 200 transactions, and it applies regardless of any physical presence in that state.

  • The IRS reporting threshold for US payment processors dropped from $20,000 down to $600. Nearly every active non-resident seller with a US payment account is now generating a 1099-K every year. Your sales volume is on record. The real question is whether your state filings and federal returns match what the IRS already sees.

  • Nexus is assessed state by state. But if your FBA inventory is distributed across multiple states - which it typically is - you may have physical nexus in several states at the same time. Each state with nexus is a separate filing obligation. The more states where Amazon stores your goods, the wider your compliance footprint gets.

  • Non-compliance is not invisible. A 1099-K on file, FBA warehouse data, and state transaction records create a documented trail. If your filings do not match that trail, the gap is visible to automated IRS systems. US LLC tax audit risks for non-residents are real and rising as reporting thresholds decrease and cross-border ecommerce keeps growing.

Your Compliance, Sorted

Ready to Map Your Real Exposure?

Your 1099-K is already filed. Your FBA inventory is already creating nexus. The only question left is whether your filings match what the IRS already sees. Get a review built around your specific channels, your residency, and your business structure.

Non-resident specialists FBA + Shopify + 3PL coverage Federal ECI analysis included Pakistan, Dubai, UK and beyond
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Questions about this guide? Reach us on WhatsApp or use the form above. Review covers all channels - Amazon FBA, Shopify, 3PL, and direct sales - plus your full federal exposure position.

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