U.S. Sales Tax vs. VAT: Key Differences Explained | Orbiss

U.S. sales tax differs from VAT in three main ways. It is charged only once, on the final sale to the end consumer, and B2B sales are generally exempt with a resale certificate. There is no federal sales tax: rates and rules are set by states, counties and cities. And you only collect it in states where you have nexus, through a physical presence or sales above the state’s economic threshold (most commonly $100,000 in sales or 200 transactions a year).

Expanding your business to the U.S. is an exciting venture! But if you’re coming from a VAT-familiar region like the EU, you’ll quickly discover that U.S. sales tax plays by different rules. This guide is designed to be your friendly compass, helping you translate your VAT know-how into confident U.S. sales tax compliance. For a visual walkthrough, see our sales tax video series.

How does VAT work? (A quick refresher)

To truly grasp U.S. sales tax, let’s briefly revisit the VAT system many international businesses are used to:

• What is VAT? Value added tax (VAT) is a consumption tax applied to nearly all commercial activities, from production to distribution. It’s ultimately paid by the final consumer, not by businesses.
• Multi-stage: VAT is charged at every step of the supply chain (manufacturer, wholesaler, retailer) as value is added along the way.
• Input credits are key: businesses can reclaim the VAT they paid on their own purchases (input VAT) from the VAT they collected on sales (output VAT). This prevents double taxation and makes the tax “neutral” for businesses.
• National rates, EU harmony: while EU countries set their own VAT rates, which can vary significantly, the underlying framework and principles are consistent across the EU VAT area, supporting a single market.

How is U.S. sales tax different from VAT?

Coming from VAT, U.S. sales tax presents a different set of rules:

• Only the final sale is taxed: unlike VAT, U.S. sales tax is a single-stage tax. It applies only when you sell to the end consumer. B2B transactions are generally tax-free if the buyer provides a valid resale certificate.
• No federal sales tax: forget one national rate. In the U.S., sales tax is set by individual states, and often by counties and cities too. This creates a patchwork of thousands of different rates and rules across the country. For example, Texas has a 6.25% state rate, but local additions can push it to 8.25%.
• Your collection duty (“nexus”): as a seller, you’re responsible for collecting sales tax from your customers and sending it to the appropriate state and local tax authorities. But this duty only kicks in when your business has a significant connection, or “nexus,” with a particular state. More on this below.

VAT vs. U.S. sales tax: what are the key differences?

Here’s a side-by-side look at the core differences:

¹ A resale certificate is a document provided by a purchaser to a seller, indicating that the purchased goods are intended for resale, which exempts the initial purchase from sales tax.

What is sales tax nexus?

Nexus is the cornerstone of U.S. sales tax. It’s the legal connection that tells you where you need to collect tax.

What are the two main types of nexus?

• Physical nexus: this is the traditional kind. You have physical nexus if you have an office, a warehouse, employees (even remote ones) or inventory stored in a state. Even a temporary presence can create this obligation.
• Economic nexus: this changed everything. The 2018 Wayfair Supreme Court decision allows states to require out-of-state businesses to collect sales tax if their economic activity (sales volume or transaction count) into that state exceeds certain thresholds. Most commonly, this means over $100,000 in gross sales or 200 separate transactions annually into a state. Note that some states have since removed the transaction count threshold.

Once nexus is triggered, what’s next?

• Register: you must register with that state’s tax authority and get a sales tax permit before making any taxable sales. Operating without this permit can lead to significant penalties, up to $10,000 in New York, for example.
• Collect correctly: apply the right sales tax rate. This is complex because of varying state, county and city rates, and it often requires precise sales processes.
• File returns: submit regular sales tax returns and send the collected taxes to the state. Filing frequency (e.g., monthly, quarterly, annually) is determined by each state, often based on your sales volume. Even if you collected no tax, a “zero return” might still be required.

Five tips for smooth U.S. sales tax compliance

Navigating U.S. sales tax can feel like a maze, but these tips will help you stay on track.

1. Map your footprint

Start by identifying every state where you have customers, employees or inventory. This helps you pinpoint where you might have sales tax obligations.

2. Know what’s taxable

U.S. taxability rules vary widely. What might be exempt in one state (like certain digital products) could be fully taxable in another. Research your products and services for each state where you have nexus. For services and software, see taxable vs. non-taxable services for SaaS and digital providers.

3. Master exemption certificates

For B2B sales, collecting and keeping valid resale or other exemption certificates is crucial. These documents prove why you didn’t collect tax, protecting you during audits. This is your U.S. equivalent of VAT input credits.

4. Stay updated

U.S. sales tax laws, rates and rules are always changing. Subscribe to alerts from state revenue departments to keep up (or just ask us!).

5. Don’t go it alone: seek experts

The U.S. sales tax system is incredibly complex, especially for international businesses. From tricky nexus scenarios to state notices that don’t support international addresses or require U.S. bank accounts, a U.S. tax professional can be your best friend. They offer proactive advice and help you avoid costly errors and even product seizures. See how Orbiss handles U.S. sales tax compliance.

So, while U.S. sales tax is a different beast from VAT (a single-stage, state-by-state system), your VAT experience gives you a great foundation. By understanding nexus, knowing what’s taxable and managing exemptions, you’ll navigate the American market with confidence.

Here’s to your successful expansion and smooth compliance! For the full picture, read sales tax: everything you need to know.

Frequently asked questions

What is the main difference between U.S. sales tax and VAT?

VAT is charged at every stage of the supply chain, with businesses reclaiming the VAT they paid through input credits. U.S. sales tax is a single-stage tax charged only on the final sale to the end consumer; B2B sales are generally exempt when the buyer provides a valid resale certificate.

Is there a federal sales tax in the U.S.?

No. Sales tax is set by individual states, and often by counties and cities too, creating thousands of different rates and rules. For example, Texas has a 6.25% state rate, but local additions can push it to 8.25%.

What is economic nexus?

Since the 2018 Wayfair Supreme Court decision, states can require out-of-state businesses to collect sales tax when their sales into the state exceed a threshold, most commonly over $100,000 in gross sales or 200 separate transactions a year. Some states have since removed the transaction count threshold.

What do I need to do once I have nexus in a state?

Register with the state’s tax authority and get a sales tax permit before making taxable sales, collect the correct state and local rate, and file returns on the schedule the state assigns, including zero returns if required.

What is the U.S. equivalent of VAT input credits?

Resale and exemption certificates. Collecting and keeping valid certificates for B2B sales proves why you didn’t collect tax and protects you during audits.

This article is for general informational purposes only and does not constitute legal, tax, or accounting advice. Rules and requirements vary by company, individual, and jurisdiction, and can change. Please seek advice appropriate to your specific situation.