EU VAT One-Stop-Shop (OSS) — Complete Guide for Non-EU Sellers (2026)

The Problem OSS Solves

Before the EU's VAT OSS system launched in July 2021, a US or UK e-commerce business selling digital goods to consumers in France, Germany, Spain, Italy, and 23 other EU countries would theoretically need separate VAT registrations in each country once exceeding local thresholds.

OSS consolidates this into a single registration, a single quarterly return, and a single payment — distributed by the relevant EU tax authority to each member state where your customers are located.

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Three Types of OSS

1. Union OSS For EU-established businesses. Not relevant for non-EU businesses.

2. Non-Union OSS For businesses established outside the EU (UK, US, UAE, Australia, etc.) selling digital services B2C to EU consumers. Registration in any EU member state covers all 27.

3. IOSS (Import One-Stop-Shop) For businesses selling physical goods under €150 to EU consumers, where goods are shipped from outside the EU. Eliminates import VAT at the border — instead, VAT is charged at point of sale and reported via IOSS.

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What Triggers the OSS Obligation?

• Digital services (Non-Union OSS):
• If you sell any of the following B2C to EU consumers, you must register for VAT once your EU-wide sales exceed €10,000/year:
• Software / SaaS / apps
• Digital downloads (music, e-books, images)
• Online courses / streaming
• Website hosting, cloud storage
• Online gaming

Below €10,000/year: you can apply the VAT rate of your own country. Above €10,000: you must charge the VAT rate of the customer's EU country.

Physical goods (IOSS): If you sell physical goods under €150 shipped from outside the EU to EU consumers: IOSS is available (not mandatory, but without IOSS, the consumer pays import VAT + handling charges at the border — often causing delivery friction and abandoned orders).

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Registering for Non-Union OSS

• Step 1: Choose your EU registration country
• You can register Non-Union OSS in any EU member state. Popular choices:
• Ireland — English language, common law, good HMRC-equivalent systems
• Netherlands — efficient digital government portal
• Germany — largest EU economy, German-language process (less ideal unless you have German support)
• Malta — English language, small but efficient
• Estonia — most digitised EU country, e-Residency holders naturally gravitate here

Step 2: Register at the chosen country's tax authority portal

Ireland: Revenue Online Service (ROS) → VAT → MOSS/OSS registration Netherlands: Belastingdienst → OSS registration (English available) Estonia: EMTA (Estonian Tax and Customs Board) → fully digital

• You will need:
• Business registration number (from your home country)
• Business address
• Description of digital services sold
• EU VAT number if you already have one (if not, the OSS registration gives you one)
• Bank account details

Step 3: Receive your OSS VAT Identification Number Format: EU followed by the country code and a number (e.g., EU826003344 for Ireland-registered). This is not a standard country VAT number — it's specifically for OSS returns.

• Step 4: Charge the correct VAT rate for each EU customer's country
• This is the key complexity. Each EU country has a different standard VAT rate:
• France: 20% | Germany: 19% | Italy: 22% | Spain: 21% | Netherlands: 21% | Sweden: 25% | Luxembourg: 17% | Hungary: 27%

Your invoicing/e-commerce system must automatically apply the customer's country rate. Shopify, WooCommerce, and most SaaS platforms support this with tax plugins.

Step 5: File quarterly OSS returns and pay Quarterly returns are due by the last day of the month following each quarter (April 30, July 31, October 31, January 31). The return lists sales to each EU country, the applicable VAT rate, and the VAT amount. Payment is made in one sum to your OSS registration country — they distribute to each member state.

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IOSS for Physical Goods Under €150

What IOSS does: When you ship goods under €150 from outside the EU to an EU consumer, normally import VAT (and customs handling charges) would be collected at the border. This creates a frustrating customer experience. IOSS eliminates this — you charge VAT at point of sale, declare it via monthly IOSS return, and the goods clear customs without additional VAT charges.

IOSS registration: Same as Non-Union OSS — register in any EU country. You receive an IOSS identification number.

Requirement: Provide your IOSS number to your shipping carrier. They include it on customs declarations. Customs authorities verify it against the IOSS register to confirm VAT was pre-collected.

Goods over €150: IOSS does not apply. Standard customs procedures (import duty + VAT) apply at the border, paid by the consumer or included in your landed cost.

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The UK-EU Split Post-Brexit

UK OSS registrations (the UK had its own MOSS scheme pre-Brexit) no longer cover EU customers. Since January 1, 2021, UK businesses selling to EU consumers need a separate EU Non-Union OSS registration. Similarly, EU businesses selling to UK consumers need a UK VAT registration.

This means a UK-based SaaS company now has two separate VAT compliance obligations: 1. UK VAT registration (for UK consumer sales above £90,000, or digital services from first sale) 2. EU Non-Union OSS (for EU consumer sales above €10,000)

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Common Mistakes

Using the wrong place of supply. For digital services B2C, the place of supply is always the customer's country — not where your business is. You cannot charge UK VAT (or no VAT) on digital services to a French consumer.

Not updating VAT rates when EU countries change them. Hungary increased its standard rate to 27% — the highest in the EU. Luxembourg has the lowest at 17%. These rates change occasionally. Your e-commerce platform must be kept current.

Missing the quarterly OSS deadline. Unlike most EU VAT systems, late OSS filings are not just fined — persistent late filing can result in exclusion from the OSS scheme (requiring individual country registrations instead).

Not keeping records for 10 years. EU VAT OSS rules require records of all OSS transactions to be kept for 10 years. These must be available to any EU member state's tax authority on request.

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FAQs

Can a US LLC register for EU Non-Union OSS? Yes. Any non-EU established business can register for Non-Union OSS regardless of entity type or nationality of owners. The US LLC registers in a chosen EU member state and receives an EU OSS VAT identification number.

Do I need a local fiscal representative for EU OSS? For Non-Union OSS: most EU countries do not require a fiscal representative (unlike some other VAT schemes). Ireland, Netherlands, and Estonia handle Non-Union OSS registrations directly without mandatory local representation.

What if I sell both digital services and physical goods? Use both Non-Union OSS (for digital services) and IOSS (for physical goods under €150). They are separate registrations with separate returns but can be in the same EU country.

What happens if a customer gives me the wrong country? If a customer provides incorrect location information and you charge the wrong VAT rate, you are generally protected if you used two non-contradictory pieces of evidence to determine the customer's location (IP address + billing address, for example). Document your evidence collection process.

Is OSS available for B2B sales? No. OSS only covers B2C sales. B2B sales within the EU use the reverse charge mechanism — the business customer accounts for VAT in their own country. You do not need OSS for any B2B EU sales.

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