U.S. Sales Tax vs. VAT: Key Differences for Businesses Expanding Internationally in 2026

The core difference in U.S. sales tax vs. VAT is where the tax is collected. U.S. sales tax is a single-stage tax charged once, on the final retail sale to the end customer, while a value added tax (VAT) is charged at every stage of the supply chain, with each business reclaiming the VAT it paid on its own purchases. Both end up taxing consumer spending, so the total tax on the final sale is often similar. The paperwork, the pricing and the cash flow are very different.

For a US company selling into the UK, the EU or Canada, U.S. sales tax vs. VAT is a practical question about registration, invoices, checkout display and month-end reconciliation. This guide walks through how each system works, a worked example of a VAT chain against a US sale, economic nexus after the Wayfair decision, the 2026 registration rules in the UK, the EU One Stop Shop (OSS) and Canada's GST/HST, and a plan for US sellers expanding abroad.

How U.S. Sales Tax vs. VAT Differ at a Glance

Single-Stage vs Multi-Stage Collection

U.S. sales tax: one collection point

Sales tax is imposed on the retail sale. A manufacturer selling to a distributor, and a distributor selling to a retailer, usually charge no sales tax because the buyer gives them a resale certificate. Only the retailer collects tax, at the rate for the jurisdiction where the sale is sourced. Rules on which address controls are covered in our guide to destination-based and origin-based sales tax sourcing.

The weakness of a single-stage system is that the whole tax depends on one transaction. If a buyer misuses a resale certificate, the tax is lost unless the state catches it on audit.

VAT: tax on each step, credit for what you paid

Under VAT, every registered business charges VAT on its sales (output tax) and reclaims the VAT on its business purchases (input tax). It pays the difference to the tax authority. The final consumer cannot reclaim anything, so the full tax burden lands on them, while each business in the chain hands over only the VAT on the value it added.

This creates a paper trail, because each business needs a proper VAT invoice from its supplier to support its input tax claim. The UK standard rate is 20%, with a reduced rate of 5% for items such as children's car seats and home energy, according to GOV.UK's VAT rates page.

Worked Example: A VAT Chain Against a US Sale

The figures below are illustrative. They follow one product from a raw material supplier to a consumer, first in the UK at the 20% standard rate, then in a US state with an assumed 8% combined sales tax rate.

The UK VAT chain at 20%

The consumer pays £1,200 on the shelf. HMRC receives £200 in total, which equals 20% of the £1,000 final net price, collected in four instalments of £50, £30, £40 and £80. Each business carried the VAT on its purchases until it could reclaim it, which is a working capital cost the US model avoids.

A helpful check for VAT-inclusive prices: at a 20% rate, the VAT inside a gross price is one sixth of that price. £1,200 divided by 6 is £200.

The same product in the US at an assumed 8%

The supplier, manufacturer and wholesaler each sell under a resale certificate and collect no sales tax. The retailer sells the product for $1,000 and adds 8% at checkout, so the customer pays $1,080 and the state receives $80 from a single return.

The US version relies on one business and three valid exemption certificates, while the UK version spreads collection across four registered businesses that each file VAT returns.

Economic Nexus After Wayfair

Before 2018, a state could only require a seller to collect sales tax if the seller had a physical presence there. The Supreme Court ended that rule in South Dakota v. Wayfair, Inc., decided June 21, 2018. The South Dakota law at issue covered sellers that "deliver more than $100,000 of goods or services into the State" or "engage in 200 or more separate transactions," and the Court held that the physical presence rule of Quill was "unsound and incorrect," as the opinion syllabus on Cornell's Legal Information Institute records.

States then adopted their own economic nexus thresholds, and many have since adjusted them. South Dakota itself dropped the transaction count: its Department of Revenue states that "effective July 1, 2023, the remote seller registration criteria no longer includes the 200 or more transactions threshold." Other states have made similar changes, so a nexus study needs current state guidance for each market. Our article on economic nexus for growing businesses explains how to track sales by state.

Economic nexus is the closest US idea to a VAT registration threshold, with one difference in scale: a seller that crosses thresholds in twenty states has twenty registrations and filing calendars. Member states of the Streamlined Sales Tax agreement offer a single registration point and uniform definitions, which reduces some of this load. Sellers that discover past exposure can often limit penalties through sales tax voluntary disclosure agreements.

VAT and GST Registration Thresholds for US Sellers

Registration rules abroad depend heavily on whether the seller is established in that country, and non-resident sellers often get no threshold at all.

United Kingdom

A UK business must register for VAT if its taxable turnover for the last 12 months goes over £90,000, according to GOV.UK's VAT registration guidance. The same page says a business must also register if it expects to go over £90,000 in the next 30 days alone. For overseas sellers the more important rule is that registration applies "regardless of taxable turnover" when the business and its owner are based outside the UK and it supplies, or expects to supply, goods or services in the UK within 30 days. In practice, a US company making taxable supplies in the UK has no turnover threshold to rely on.

Once registered, UK VAT returns must be kept and filed digitally under Making Tax Digital. Our guide to UK VAT Making Tax Digital rules covers digital links and the penalty regime. Entity, payroll and corporation tax questions are covered in expanding to the UK as a US company.

European Union: the One Stop Shop

EU VAT is charged at the rate of the customer's member state for most cross-border sales to consumers. To avoid registering in up to 27 countries, the EU runs the One Stop Shop, which since 1 July 2021 covers "three special schemes: the non-Union scheme, the Union scheme and the import scheme," according to the European Commission's OSS portal.

• Non-Union scheme: for businesses that have no place of business or fixed establishment in the EU. It lets a taxable person "declare supplies of services to non-taxable persons" across the EU through one quarterly return.
• Union scheme: for EU-established businesses, covering intra-Community distance sales of goods and cross-border services to consumers.
• Import scheme (IOSS): for distance sales of imported goods "in consignments of an intrinsic value not exceeding EUR 150."

The EU's €10,000 threshold applies to suppliers established in only one member state, so a US company without an EU establishment cannot use it. A US software or digital services company selling to EU consumers generally owes VAT from the first sale and would typically register for the non-Union scheme. Physical goods shipped from the US are handled through IOSS for low-value consignments, or through import VAT at the border, or by marketplaces that act as the deemed supplier. Digital services may also attract separate national levies, explained in our overview of digital services taxes.

Canada: GST/HST

Canada's federal GST is 5%. Several provinces combine it with a provincial portion into a single harmonized sales tax (HST). The CRA's GST/HST rate calculator lists 13% for Ontario, 15% for New Brunswick, Newfoundland and Labrador and Prince Edward Island, and 14% for Nova Scotia from April 1, 2025. Provinces such as British Columbia and Quebec charge their own provincial sales tax alongside GST.

Canada has two relevant tests:

1. Small supplier rule. Under the CRA's general guide for GST/HST registrants, a small supplier's taxable revenue "is $30,000 or less in any single calendar quarter and in the last four consecutive calendar quarters." A non-resident carrying on business in Canada above that level generally registers under the normal regime.
2. Simplified regime for digital sellers. Non-resident vendors that do not carry on business in Canada and sell digital products and services to Canadian consumers and other unregistered buyers register under a simplified system. The CRA says the obligation "generally depends on whether your threshold amount of applicable revenues exceeds $30,000 CAD" over any 12-month period.

As an illustration, a C$1,000 sale shipped to Ontario carries C$130 of HST, while the same sale to Alberta carries C$50 of GST.

Checkout, Pricing and Refunds Under Each System

US shoppers expect a pre-tax price on the product page, with tax added in the cart. UK and EU consumers expect the shelf price to include VAT. A storefront serving both needs two display modes keyed to the buyer's location, and finance needs to know which mode produced each order.

Discounts behave differently too. On a VAT-inclusive price, a coupon reduces the VAT along with the price. A 10% discount on a £1,200 inclusive price leaves £1,080, of which £180 is VAT and £900 is net revenue. On a US exclusive price, the discount comes off the net price first and tax is calculated on the reduced base.

Refunds follow the same split. A US refund reverses sales tax in proportion to the amount refunded and posts a negative line to sales tax payable. A UK or EU refund to a business customer needs a credit note that references the original invoice and shows the VAT being reversed. Our article on returns, chargebacks and sales tax reconciliation covers the ledger side in more detail.

As a practical guideline, store these fields on every order line:

• tax basis, rate code and tax amount, kept as separate values;
• the jurisdiction or VAT registration number used;
• a flag showing whether the marketplace or the merchant collected the tax;
• a link to the original document for any refund or credit note.

Marketplace orders need their own handling, since marketplaces often collect the tax themselves under US marketplace facilitator laws or UK and EU deemed supplier rules. Reconciling those orders separately prevents a seller from remitting the same tax twice.

How US Sellers Expanding Abroad Should Handle It

The following sequence reflects common practitioner guidance for US companies adding VAT and GST to an existing sales tax process:

1. Map what you sell and to whom. Goods, digital services and B2B or B2C status each change the answer. A B2B sale of services to a VAT-registered EU customer is usually handled by the customer under the reverse charge. The EU's official Your Europe portal says that a business buying services from outside the EU "should usually pay VAT at the applicable rate in your country." By contrast, the same service sold to a consumer brings the seller into OSS.
2. Decide registration before the first sale. For non-resident sellers, the UK and EU rules described above can apply from the first transaction.
3. Check permanent establishment exposure. Staff or contractors abroad can create corporate tax obligations separate from VAT, as explained in our guide to permanent establishment risks for remote teams.
4. Set up multi-currency books. VAT returns are filed in local currency, so foreign exchange rates need a documented policy. Our guide to multi-currency bookkeeping covers revaluation and reporting.
5. Choose software that handles both systems. The tool should show VAT-inclusive and sales-tax-exclusive prices, validate VAT numbers and generate credit notes. Our comparison of sales tax automation software is a starting point for the US side.
6. Plan for cash flow. VAT on imports and on inputs is paid before it is reclaimed, so budget for the gap in the first quarters.

Indirect tax is one part of a wider expansion plan that also covers transfer pricing and currency risk, discussed in our article on global expansion, currency risk and transfer pricing.

Frequently Asked Questions

Is VAT higher than U.S. sales tax? Headline VAT rates are usually higher. The UK standard rate is 20%, while US combined state and local rates are typically in single digits or low double digits depending on the address.

Do US companies have to pay VAT? A US company that sells taxable goods or services into a VAT country may need to register, charge VAT and file returns there. In the UK, overseas businesses supplying goods or services in the UK must register regardless of turnover. In the EU, sellers of digital services to consumers generally use the non-Union OSS scheme.

Can a US business reclaim VAT paid abroad? A business registered for VAT in a country can usually reclaim input VAT on its business purchases through its VAT return. Unregistered foreign businesses may have separate refund procedures in some countries.

Does the EU €10,000 threshold apply to US sellers? The European Commission states that this threshold applies to suppliers established in only one member state. A US company without an EU establishment generally cannot use it and owes VAT on consumer sales from the first sale.

What is the Canadian equivalent of VAT? Canada's GST and HST work like a VAT, with registrants claiming input tax credits on their purchases. The federal GST is 5%, and HST rates in participating provinces range from 13% to 15%.

Next Step

Madras Accountancy supports US businesses and CPA firms with bookkeeping, multi-currency reconciliation, sales tax workflows, tax preparation and CFO advisory as they sell across states and borders. To talk through your indirect tax setup, contact our team.