VAT in Cross-Border E-commerce: The Complete Guide for Online Businesses (2026)
Once you start selling across borders, VAT becomes unavoidable — and the rules are different in every market. EU customers trigger the OSS or IOSS. US customers trigger economic nexus in up to 45 states. Digital services create obligations in 100+ countries. And DAC7 means the platforms you sell through are now reporting your revenue to tax authorities automatically. This guide explains what actually triggers registration, how the major schemes work, and where the hidden costs are.
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Get started freeThe Foundation: B2B vs B2C and Why It Changes Everything
The Most Important Split in Cross-Border VAT
Before touching thresholds and registration schemes, the B2B vs. B2C distinction determines everything else. Business-to-consumer (B2C) sales are taxed at the customer's location. You collect and remit VAT in the destination country. Business-to-business (B2B) sales where the buyer is VAT-registered use the reverse charge mechanism — the buyer accounts for VAT in their own country, not you. You invoice without VAT and report zero-rated. This distinction is critical because the compliance burden is entirely different. A SaaS company selling to 5,000 EU businesses (B2B) doesn't collect EU VAT on those invoices at all — the customers self-account. The same SaaS selling to 5,000 EU individual consumers must collect VAT at each customer's local rate — 19% in Germany, 20% in France, 25% in Denmark, 27% in Hungary. The challenge: verifying whether the customer is actually VAT-registered. Collecting a VAT number isn't enough — you should verify it in VIES (the EU VAT Information Exchange System) before treating a sale as B2B. A fake or invalid VAT number makes you liable for the uncollected VAT.
B2B (buyer is VAT-registered): reverse charge applies — buyer accounts for VAT, you invoice with no VAT and report zero-rated
B2C (individual consumer or non-VAT-registered buyer): you collect VAT at the customer's local rate and remit it
Verify EU VAT numbers in VIES (vat-one-stop-shop.ec.europa.eu) before treating a sale as B2B — an invalid number makes you liable
Mixed customer base? Apply B2B treatment only where you have a valid, verified VAT number on file
Digital services, software subscriptions, and downloads are always taxed at the customer's location for B2C sales — no de minimis
EU VAT: OSS, IOSS, and the €10,000 Threshold
The One Stop Shop (OSS): How It Works
The EU One Stop Shop is the primary tool for managing VAT obligations across all 27 member states through a single registration. Instead of registering for VAT separately in Germany, France, the Netherlands, Italy, and every other country where you have B2C customers, you register for OSS in one member state. File one quarterly return. Make one payment. The registration country forwards the correct VAT amounts to each destination country automatically. EU-established businesses register for OSS in their country of establishment. Non-EU businesses can choose any EU member state as their registration country for the non-Union OSS scheme (services only) or must register in the country of dispatch for goods. The €10,000 threshold: EU-established businesses that sell goods or services cross-border to EU consumers in other member states can use domestic VAT rules (domestic rate only) if total cross-border B2C turnover stays below €10,000 per calendar year. Above €10,000 — or if you opt in early — OSS is the mechanism. This threshold does not apply to non-EU businesses: they must register immediately when they first sell to EU consumers. Under ViDA (effective July 1, 2026), the OSS scope expanded to include additional B2C supply types — domestic supplies by non-established businesses, and installation and assembly supplies — that were previously excluded. From January 1, 2027, energy-related supplies (electricity, gas, heating) will also qualify.
OSS: one registration, one quarterly return, one payment — covers all 27 EU member states for B2C sales
€10,000 annual threshold for EU-established businesses only — stay below it and use domestic VAT rates
Non-EU businesses: no threshold — OSS registration required immediately upon first EU B2C sale
ViDA July 1, 2026: OSS expanded to domestic supplies by non-established businesses and installation/assembly supplies
ViDA January 1, 2027: OSS extended to electricity, gas, and energy supplies
ViDA July 1, 2028: OSS extended to ALL B2C goods and services, including stock transfers between EU countries
IOSS: The Import One Stop Shop for Low-Value Goods
IOSS covers a specific and very common e-commerce scenario: goods imported from outside the EU and sold directly to EU consumers in consignments valued at €150 or less per order. Before IOSS, a €40 parcel from a Chinese seller arriving at a French customer triggered French customs to collect VAT at delivery — creating delays, confusion, and customer friction. IOSS moves VAT collection to the point of sale. The seller collects EU VAT (at the customer's local rate) when the customer checks out, registers and remits through IOSS monthly, and the parcel clears customs without VAT being collected again. Non-EU sellers must appoint an EU-established intermediary to use IOSS — the intermediary is jointly and severally liable for the VAT obligations. France, Italy, and Spain require non-EU businesses to appoint a fiscal representative with joint and several liability even for regular VAT (not just IOSS). If your consignment exceeds €150 per order, IOSS doesn't apply — the buyer pays import VAT at the border. This is why many e-commerce sellers split large orders or structure their shipping to stay below the threshold.
EU VAT Schemes for E-commerce Sellers — Which One Applies to You (2026)
| Scenario | Scheme | Registration | Filing Frequency | Threshold |
|---|---|---|---|---|
| EU-established seller, goods to EU consumers in other member states | Union OSS | Own country of establishment | Quarterly | €10,000 cross-border B2C turnover |
| Non-EU seller, services to EU consumers (digital services, SaaS, downloads) | Non-Union OSS | Any EU member state of choice | Quarterly | No threshold — register from first sale |
| Non-EU seller, goods physically located in the EU, sold to EU consumers | Union OSS | Country where goods are dispatched from | Quarterly | No threshold — register from first sale |
| Non-EU seller, importing goods ≤€150 per order to EU consumers | IOSS | Any EU member state (via intermediary if required) | Monthly | No threshold — register from first sale |
| Goods >€150 per order imported from outside EU | No scheme available | VAT registration in each destination country OR import VAT at border | Varies | No threshold |
| Selling via Amazon/eBay/etc. (marketplace as deemed supplier) | Marketplace handles VAT | Marketplace registers and remits — not the seller for in-scope transactions | N/A — platform files | Varies by platform scope |
The deemed supplier rule means that for many transactions via large marketplaces, the platform (Amazon, Zalando, etc.) is responsible for collecting and remitting VAT — not you. But off-platform sales, goods you stock in EU fulfillment centers, or sales on your own website remain your responsibility.
VAT Rates Across Europe: Why You Can't Use One Rate
Every Country Has Its Own Rate — and Its Own Reduced Rates
The EU does not have a single VAT rate. Standard rates range from 17% in Luxembourg to 27% in Hungary. Each country also has reduced rates (typically 5–14%) that apply to specific categories: food, books, medicines, cultural services, and more. The category definitions differ by country. An e-book taxed at 7% in Germany may face 20% VAT in France as a general digital service. Physical books qualify for reduced rates in most EU countries; audiobooks and ebooks now generally qualify for the same reduced rate as physical books following the 2018 EU directive change, but implementation varies. Non-EU sellers must apply the correct rate for each customer's country — incorrect rates are a common audit trigger. Outside the EU: UK VAT is 20% standard (post-Brexit, the UK has its own rules, its own registration, and its own Making Tax Digital requirements). Norway applies 25% standard VAT. Switzerland has 8.1% standard. Canada applies GST/HST at 5–15% depending on province. Australia GST is 10%.
EU standard VAT rates 2026: Hungary 27%, Denmark/Sweden/Croatia 25%, Finland 25.5%, Ireland 23%, France/Germany/Netherlands/Belgium ~20–25%
Luxembourg: 17% — lowest in the EU
Reduced rates apply to food, books, medicines, cultural services — but categories differ by country
UK: 20% standard, own separate registration (Making Tax Digital requirements apply from 2024+)
B2B reverse charge: no rate to apply — invoice without VAT, state the customer's obligation
You must store two non-conflicting pieces of evidence of the customer's location (billing address, IP address, bank location, SIM card country) — required for digital service VAT
US Sales Tax: Economic Nexus in 45 States
The Wayfair Ruling and What It Means for Online Sellers
The US has no federal VAT — instead, 45 states levy their own sales taxes at rates from 0% (Montana, Oregon, New Hampshire, Delaware, Alaska) to over 10% (Louisiana with local taxes combined). Since the 2018 South Dakota v. Wayfair Supreme Court ruling, states can require out-of-state sellers to collect and remit sales tax based purely on economic activity, not physical presence. The most common economic nexus trigger: $100,000 in sales into a state per calendar year, or 200 separate transactions. In 2026, several states have updated their rules. Illinois removed its transaction threshold — $100,000 in gross sales is now the only trigger. Utah similarly eliminated the transaction count threshold effective July 1, 2025. New York requires both $500,000 in sales and 100 transactions. Alabama's threshold is $250,000. Once you cross a state's threshold, you must register for a sales tax permit, begin collecting the correct rate, and file returns on the state's schedule — monthly, quarterly, or annually depending on your volume. Marketplace facilitator rules further complicate this: in most states, Amazon, eBay, and similar platforms collect and remit sales tax on marketplace sales — but your own website sales remain your responsibility, and marketplace sales may still count toward your nexus threshold for your direct sales.
Most common threshold: $100,000 in sales OR 200 transactions per state per calendar year
New York: requires both $500,000 in sales AND 100 transactions
Alabama: $250,000 in sales only
Illinois (2026): $100,000 in gross sales only — transaction threshold removed
5 states with no sales tax: Montana, Oregon, New Hampshire, Delaware, Alaska — no registration needed there
Marketplace sales: platforms usually collect and remit, but may still count toward nexus in your direct sales channel
Penalty for non-collection: back taxes plus interest plus penalties — and no statute of limitations if no return was filed
DAC7: The Platform Is Now Reporting Your Sales to Tax Authorities
Or 30 transactions — the DAC7 reporting trigger for EU-seller data to tax authorities
Digital Services: A Separate Set of Rules with No De Minimis
SaaS, Downloads, Streaming, and Online Courses
Electronically supplied services — software subscriptions, app downloads, streaming content, e-books, online courses, digital templates, and cloud services — follow their own VAT treatment. Unlike physical goods, there is no minimum order value or registration threshold for digital services sold to EU consumers. A single €1 sale to an EU consumer creates a VAT obligation. The VAT rate is always the destination country's rate for B2C digital services. There are no zero-rated or reduced rates for most digital services in most EU countries — most apply the standard rate. The 'where is the customer' evidence requirement: for B2C digital services, you must collect and store two pieces of non-contradicting evidence of the customer's location — commonly billing address, IP address, bank country, mobile network, or SIM card country. This is an audit requirement, not optional. Countries outside the EU with their own digital services VAT or GST on foreign sellers: UK (20%, registration required for non-UK businesses selling to UK consumers above £0), Australia (GST, 10%, no minimum), Canada (federal GST applies to digital services from non-residents), India (OIDAR GST, 18%), Saudi Arabia (VAT 15%, marketplace deemed supplier rule from 2026), New Zealand (GST 15%), Norway (25%), Switzerland (7.7% for businesses with >CHF 100,000 global turnover), Japan (JCT, 10% on digital services to Japanese consumers). In practice, if you sell digital services globally, you may owe consumption tax in 30+ countries.
No de minimis for EU B2C digital services — a single €1 sale triggers VAT obligations
Standard rate applies in most EU countries — no reduced rates for most digital services
Two-location-evidence rule: store two non-contradicting signals of customer location per transaction
UK: 20% VAT, own registration, no registration threshold for non-UK digital service sellers
Australia: 10% GST applies from first dollar — no minimum threshold
India OIDAR: 18% GST on foreign digital service providers, tighter enforcement from 2026
Global reality: digital service sellers may face consumption tax obligations in 30+ countries
ViDA: What's Coming and When to Prepare
The ViDA Timeline — What Changes and When
VAT in the Digital Age (ViDA), adopted by the EU Council on March 11, 2025 and published in the Official Journal on March 25, 2025, is the most significant EU VAT reform since 2021. Its changes roll out over a multi-year timeline. For e-commerce businesses, the key milestones are: July 1, 2026 — OSS expanded to domestic B2C supplies by non-established businesses and installation/assembly supplies. January 1, 2027 — Energy supplies (electricity, gas, heat) qualify as distance sales accessible via OSS. July 1, 2028 — Single VAT Registration fully implemented: OSS extends to ALL B2C supplies of goods and services, including stock transfers between EU countries. The call-off stock simplification (introduced 2020) is abolished from this date, replaced by the OSS for own goods movements. Reverse charge expanded for B2B supplies by non-established traders. January 1, 2030 — Platform economy: mandatory deemed supplier rule for accommodation and ride-hailing platforms (previously optional from July 2028). July 1, 2030 — Mandatory digital reporting requirements (DRR) and structured e-invoicing for intra-EU B2B transactions. The practical implication of the 2028 change is significant for businesses with EU fulfillment stock: moving your own goods between EU countries currently requires VAT registration in each country of dispatch and receipt. From July 2028, these movements can be reported through a single OSS return.
Step-by-Step: Registration and Compliance Process
What to Do and In What Order
Most online sellers face the same sequence of decisions when entering a new market. The key is doing this before you start selling — not after you've accumulated unreported obligations.
Step 1: Determine your customer type. B2B or B2C? Verify VAT numbers in VIES for business customers. Only confirmed B2B buyers get invoiced without VAT under reverse charge.
Step 2: Map where your customers are. Which countries, states, or territories are you selling into? What volumes? This determines which thresholds you're approaching or crossing.
Step 3: EU customers (B2C goods from outside EU, ≤€150 per order)? Register for IOSS. If you're non-EU, appoint an EU-established intermediary first. If goods exceed €150 or you have EU warehouse stock, Union OSS is the right scheme.
Step 4: EU customers (digital services or services generally)? Register for Non-Union OSS if you're non-EU. Choose your member state of identification — once chosen, you're locked in until you deregister.
Step 5: UK customers? The UK has its own VAT system post-Brexit. If you sell goods to UK consumers and your UK sales exceed £0 for digital services or £135 for goods (the import VAT threshold), you need a UK VAT number. Register with HMRC at gov.uk.
Step 6: US states? Calculate your total sales by state for the previous 12 months and for the current calendar year. Where you've crossed $100,000 (or the state-specific threshold), register immediately. Use a sales tax automation tool if you're active in more than 3–4 states — manual tracking is not viable at scale.
Step 7: Set up your technology. Your checkout must apply the correct VAT rate for each customer's location. Static rates in your cart trigger incorrect charging. VAT calculation software (Avalara, TaxJar, Quaderno, Taxually) does this automatically and integrates with Shopify, WooCommerce, Stripe, and similar platforms.
Step 8: Store evidence. For digital services, retain two location signals per transaction for 10 years (EU requirement). For OSS and IOSS filings, maintain transaction-level records. Under DAC7, platforms are already reporting — your internal records must match.
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