The short answer: VAT (value-added tax) is a consumption tax charged at every stage of the supply chain. Each registered business charges VAT on its sales, deducts the VAT it paid on its purchases, and pays the difference to the government, so the full tax ends up with the final consumer. The US has no VAT, but a US business selling into VAT countries may have to register there, and for digital services sold to consumers in the UK or the EU that obligation usually starts with the first sale.
If your business sells beyond US borders, VAT will eventually land on your desk. It is the most widely used consumption tax in the world, and it works very differently from the sales tax you already know. This guide covers what VAT is, how it moves through the supply chain, who pays it, when you have to register, and how filing works, with worked numbers.
Key Takeaways
- What it is: a tax on consumption, collected in stages by every business in the chain.
- How it works: output VAT on sales minus input VAT on purchases is paid to the government.
- Who bears it: the final consumer; registered businesses are neutral.
- US sellers abroad: registration thresholds often do not apply to foreign businesses, so VAT can be due from the first sale to consumers.
- Business customers: many cross-border B2B services are handled by the customer under the reverse charge.
- Exempt vs zero-rated: both mean no VAT for the customer, but only zero-rating lets the seller reclaim input VAT.
About 170 countries run a VAT or a closely related goods and services tax (GST). It is the norm across Europe, Latin America, Africa and much of Asia, while Australia, Canada and New Zealand use GST. To a US shopper VAT can feel like sales tax with a different name. To a US business it is a different system, worth understanding before you invoice your first overseas customer.
What VAT Actually Is
Value-added tax is an indirect consumption tax charged on the value a business adds to goods or services as they move through the supply chain. “Value added” covers materials, labor, overhead and profit. The tax is borne by the end consumer, but it is collected in pieces at every stage of production and distribution rather than once at the checkout.
That staged collection is the core difference from US sales tax, which is charged once, at the final retail sale. VAT is charged a little at a time as a product changes hands, with each business passing its share to the tax authority.
How VAT Works: Input VAT and Output VAT
VAT is designed to be neutral for businesses. Each registered business charges VAT on what it sells (output VAT) and pays VAT on what it buys (input VAT). On its return it pays only the difference. Each business effectively pays tax on the value it adds, and the full burden falls on the final consumer, who has no one to pass it on to.
Worked Example: A 10% VAT Moving Down the Supply Chain
Assume a flat 10% VAT rate and follow a laptop battery from raw materials to a laptop on a store shelf.
| Business | Sale price (before VAT) | Output VAT charged | Input VAT paid | VAT paid to government |
|---|---|---|---|---|
| Raw materials supplier | $100 | $10 | $0 | $10 |
| Battery factory | $200 | $20 | $10 | $10 |
| Laptop maker | $300 | $30 | $20 | $10 |
| Laptop customer | $400 | $40 | $30 | $10 |
The government collects $40 in total, exactly 10% of the $400 final price. The consumer bears all $40, and no business in the middle is out of pocket: each collected VAT from its customer and deducted the VAT it had already paid its supplier.
Who Collects VAT?
As with US sales tax, the consumer does not pay the tax authority directly. Businesses do the collecting. Each registered business charges VAT to its customer, deducts the VAT it paid on inputs, and sends the balance to the government with its return. The buyer pays; the seller collects and remits.
Why Governments Use VAT
VAT raises revenue like any other tax, but its staged design makes it harder to evade and easier to audit than a single-point tax, because every business in the chain must keep records of its purchases and sales. It is usually administered by the national government rather than a patchwork of state and local jurisdictions, which is part of why so many countries use it.
The VAT Gap
VAT is not evasion-proof. The difference between the VAT that should be collected and what actually reaches the treasury is called the VAT gap, and in the European Union it runs to tens of billions of euros a year. To close it, many countries now require electronic invoicing: structured digital invoices exchanged between accounting systems and, in some countries, reported to the tax authority in real time.
Does Your Business Need to Register for VAT?
VAT rules differ by country, so there is no single answer. As a rule of thumb, a business usually has to register in a country when any of these applies:
- It has a fixed establishment there: an office, staff or other resources in the country from which it makes or receives supplies.
- It passes the country’s registration threshold: a level of taxable sales above which registration is mandatory. Many countries apply thresholds only to local businesses.
- It makes supplies the country taxes locally: for example, digital services sold to consumers there, goods held in a local warehouse, or admission to an event held there.
Registration Rules for US Businesses Selling to the UK and EU
| Situation | Registration rule |
|---|---|
| UK, business established in the UK | Register once VAT-taxable turnover passes £90,000 in a rolling 12 months |
| UK, business not established in the UK | No threshold: register from the first taxable supply made in the UK, such as sales of digital services to UK consumers |
| EU, seller established in another EU country | Cross-border sales to consumers taxed where the customer is once they pass €10,000 a year across the EU |
| EU, seller established outside the EU (for example a US company) | No threshold for sales of digital services to EU consumers: VAT is due from the first sale, usually reported through the non-Union One-Stop Shop |
| Business-to-business services | Often no registration needed: the business customer accounts for the VAT under the reverse charge |
The UK threshold rose from £85,000 to £90,000 on April 1, 2024. See HMRC’s registration guidance for current rules.
Worked Example: A US Software Company Selling to the UK
A US software company with no UK office sells subscriptions to UK customers.
- Sales to UK consumers: because the company is not established in the UK, the £90,000 threshold does not apply. It must register for UK VAT before its first consumer sale and charge 20% UK VAT on those subscriptions.
- Sales to UK businesses: these are generally outside the company’s UK VAT obligations. The UK business customer accounts for the VAT under the reverse charge.
- If it registers late: it owes the VAT it should have charged on past consumer sales, often out of its own pocket, plus penalties and interest.
For the EU there is a shortcut. The One-Stop Shop (OSS) and Import One-Stop Shop (IOSS) let qualifying sellers register once and report VAT for sales across all EU countries on a single return, instead of registering in each country.
Selling to customers overseas?
Talk to Countsure about where your sales may create VAT obligations, and how to keep your books ready for them.
Can You Be Exempt from VAT?
Yes, in some cases. Exemptions depend on the country, the type of business and what it sells. EU countries must exempt certain supplies, such as many education, healthcare and financial services, and may choose to exempt others. Some countries also exempt very small local businesses below a set level of sales.
Exempt Is Not the Same as Zero-Rated
This distinction trips up many newcomers, and it affects cash flow.
Exempt: no VAT is charged on the sale, but the seller generally cannot reclaim the input VAT on related purchases, so that VAT becomes a real cost.
Zero-rated: VAT is charged at 0%, so the customer pays none, but the seller can still reclaim input VAT. Exports are typically zero-rated, and in the UK so are most food and children’s clothing.
Worked Example: Exempt vs. Zero-Rated
A business buys inputs for €1,000 plus €100 input VAT, then makes a sale.
| Exempt sale | Zero-rated sale | |
|---|---|---|
| VAT charged to the customer | €0 | €0 (0% rate) |
| Input VAT of €100 on related purchases | Cannot be reclaimed | Can be reclaimed |
| Net VAT cost to the seller | €100 | €0 |
Same price to the customer, very different result for the seller.
How Do You File and Pay VAT?
- You may have to file with nothing to report. Many countries require returns for every period while you are registered, whether or not you had sales.
- Late, missing or wrong returns bring penalties and interest. Several countries have tightened their penalty regimes in recent years.
- Poor records cost money. If you cannot support input VAT with a valid invoice, you may lose the right to reclaim it. Accounting systems such as Xero track VAT by transaction, which makes returns easier.
Worked Example: One Quarter's VAT Return
| Line | Amount |
|---|---|
| Output VAT on sales | €12,000 |
| Less input VAT on purchases | (€7,500) |
| Net VAT payable | €4,500 |
The business pays €4,500 to the tax authority. If input VAT had been €13,000 instead, it would be owed a €1,000 refund.
Why VAT Is Not Just Sales Tax with a Different Name
| Feature | VAT | US sales tax |
|---|---|---|
| When it is charged | At every stage of the supply chain | Once, at the final retail sale |
| Who remits | Every registered business in the chain | Mainly the final seller |
| Input tax recovery | Businesses reclaim VAT on inputs | No equivalent; resale exemption certificates instead |
| Shown on invoices | Yes, VAT invoices are a legal requirement | Added at checkout |
| Administered by | Usually the national government | States and local jurisdictions |
| Where it applies | About 170 countries | US states (there is no federal VAT) |
Frequently Asked Questions
1. What is VAT in simple terms?
VAT, value-added tax, is a consumption tax charged at each stage of the supply chain on the value added at that stage. Businesses charge it on sales, deduct the VAT they paid on purchases, and pay the difference to the government. The final consumer bears the full tax.
2. Do Americans have to pay VAT?
Not inside the United States, which has no VAT. Americans pay VAT when they buy goods or services in countries that levy it, and a US business may have to register and charge VAT when it sells into those countries.
3. Does a US company have to register for VAT when selling abroad?
It depends on the country and what you sell. A US company selling digital services to consumers in the UK or the EU generally has to register and charge VAT from the first sale, because the registration thresholds apply only to businesses established there. Sales to business customers are often handled by the customer under the reverse charge.
4. What is the UK VAT registration threshold?
£90,000 of VAT-taxable turnover in a rolling 12-month period, since April 1, 2024. It applies only to UK-established businesses; businesses not established in the UK must register from their first taxable UK supply.
5. What is the difference between exempt and zero-rated?
Both mean the customer pays no VAT. With a zero-rated sale the seller can still reclaim the VAT on its related purchases; with an exempt sale it cannot, so that input VAT becomes a cost.
6. Can a US business claim VAT back?
A business registered for VAT in a country reclaims input VAT on its returns there. A business that is not registered may be able to claim refunds under that country’s rules for non-resident businesses, but some countries refund only businesses from countries that offer them the same treatment, and the US has no VAT to offer in return.
7. How is VAT different from GST?
They work the same way. GST, used in countries such as Canada, Australia and New Zealand, is a value-added tax with input credits under a different name.
8. How is VAT different from US sales tax?
Sales tax is charged once, at the final retail sale, and administered by states. VAT is charged at every stage of the supply chain, businesses reclaim the VAT on their inputs, and it is usually administered nationally.
Selling Across Borders? Get Your Indirect Tax Position Right.
Whether you are planning an overseas expansion or just want to know which indirect taxes apply to your sales, Countsure’s CPA-led team can help you map where obligations may arise, coordinate registrations with local VAT specialists, and keep your US business tax and books aligned. Fill out the form below, or book a call directly.
Related Countsure Resources
- Business Tax Services: US federal and state business tax returns.
- Consult with a CPA: a one-off consultation on a specific cross-border question.
- Bookkeeping Services: records kept to the standard tax authorities expect.
Parth Shah, Managing Director
(CPA-US, FCA, RV-S&FA, DISA)
Parth Shah who is head of Accounts and Book keeping has experience of more than 10 years. A Certified Public Accountant – US, fellow Chartered Accountant, Registered Valuer and Diploma in Information System Audit.
