What is the OSS Scheme?

The One Stop Shop (OSS) is an EU VAT simplification mechanism that came into force on 1 July 2021. It replaced the previous distance-selling thresholds that varied by country and introduced a single, unified approach for cross-border B2C e-commerce across all 27 EU member states.

Before OSS, online sellers had to monitor individual country-level VAT thresholds (ranging from €35,000 in some countries to €100,000 in others) and register for VAT locally once they exceeded them. In the worst case, a seller active across all EU markets faced 27 separate VAT registrations, 27 sets of filing deadlines, and correspondence with 27 different national tax authorities. OSS eliminates this complexity by letting you file once at home.

The OSS scheme covers three situations: the Union scheme for EU-based sellers supplying goods or digital services to EU consumers; the Non-Union scheme for non-EU sellers supplying digital services to EU consumers; and the Import One Stop Shop (IOSS) for imports of low-value goods from outside the EU. For most e-commerce sellers based in Europe, the Union scheme is the relevant path.

OSS is optional in theory — you may still choose individual country registrations — but for practically any business selling across multiple EU markets, OSS is the rational choice. The administrative savings are substantial, and the scheme's reporting requirements are far less burdensome than managing 27 separate VAT accounts.

The €10,000 Threshold

The pivotal number in the OSS framework is €10,000 per year. Once your cross-border B2C sales to EU consumers (outside your home country) exceed this threshold cumulatively, you must charge VAT at the rate applicable in each buyer's country. This is known as the destination-country principle.

The threshold works cumulatively across all EU countries combined. If you sell €3,000 to German consumers, €4,000 to French consumers, and €4,000 to Spanish consumers, your total of €11,000 has already crossed the threshold — even though each individual country figure is low. There is no per-country threshold under OSS; it is a single EU-wide figure.

All sales channels count towards the threshold. Your Amazon Seller Central sales, Bol.com marketplace orders, Shopify storefront transactions, and WooCommerce orders are all added together. The tax authority looks at your total cross-border B2C EU turnover, regardless of which platform or channel generated it.

If you remain below €10,000, you may continue charging your home country VAT rate on all EU sales and remit through your domestic VAT return. This is simpler for smaller sellers or those with minimal cross-border activity. However, once you approach the threshold, it is wise to begin the OSS registration process early — registration takes effect only from the first day of the quarter following your application.

OSS vs. IOSS: Which Scheme Applies to You?

Two schemes operate under the One Stop Shop umbrella, and understanding the difference is essential for choosing the right registration path.

OSS (Union Scheme) applies to EU-based sellers shipping goods from within the EU to EU consumers. If your inventory sits in a warehouse in the Netherlands, Germany, or a Polish fulfilment centre, and you ship to buyers across the EU, OSS is your scheme. It also covers sales of electronically supplied services (software, e-books, streaming, apps) and telecommunications services delivered to EU consumers.

IOSS applies when goods are imported from outside the EU with a value of €150 or less per consignment. This is the scheme for dropshippers shipping directly from suppliers in China or the United States, and for sellers using non-EU warehouses (e.g., Amazon FBA in the UK post-Brexit). Under IOSS, the seller charges VAT at the time of purchase, the goods clear customs VAT-free, and the buyer experiences no unexpected import charges upon delivery.

Some sellers need both schemes simultaneously. A Dutch seller who ships from a Netherlands warehouse (OSS) and also drop-ships certain products directly from a supplier in Shenzhen (IOSS) needs to register for each scheme separately. If you sell goods above €150 imported from outside the EU, neither OSS nor IOSS covers those shipments — standard import VAT applies at the border in each country.

How to Register for OSS

Registration for OSS takes place through your national tax authority's OSS portal. For Netherlands-based sellers, this is via belastingdienst.nl under the BTW/Eenloketsysteem section. German sellers register via the BZSt OSS portal. For other EU countries, the Your Europe portal lists each country's registration authority.

To complete your OSS registration you will need: your VAT identification number (or equivalent national tax number), your company registration number, your bank account details for making payments, and a description of your business activities. The process typically takes 15–30 minutes online and requires no specialist support for straightforward cases.

Registration becomes effective on the first day of the quarter following your application. If you submit your registration in May (Q2), your OSS obligations begin on 1 July (Q1 of the next filing period). There is one exception: if you exceeded the €10,000 threshold mid-quarter, you can register to begin from the date of the first exceeding transaction, but this requires you to retrospectively report those initial sales in your first OSS return.

Once registered, you no longer need a local VAT registration in each EU country where you sell. However, you remain responsible for applying the correct VAT rate for each destination country. Rates differ significantly: Germany 19%, France 20%, Hungary 27%, Luxembourg 17%. Reduced rates for food, books, or children's clothing vary further — always verify the applicable rate for your specific product category in each country.

Quarterly Reporting: Deadlines and Process

The OSS scheme operates on a quarterly filing cycle. Each quarter, you must file a return showing your sales by destination country and pay the corresponding VAT by a fixed deadline. The four annual deadlines are:

• Q1 (January–March): Return and payment due by 30 April
• Q2 (April–June): Return and payment due by 31 July
• Q3 (July–September): Return and payment due by 31 October
• Q4 (October–December): Return and payment due by 31 January

For each country where you made sales, your return must include: total value of sales to consumers in that country (excluding VAT), the applicable VAT rate(s), and the VAT amount due. You make a single payment to your home tax authority in your home currency — the authority distributes the amounts to the relevant member states on your behalf.

Missing a deadline has serious consequences. Beyond interest charges and potential financial penalties, repeated late filing can result in your exclusion from the OSS scheme for a minimum of two quarters. During exclusion, you are required to hold individual VAT registrations in every EU country where you sell — a dramatically more burdensome outcome. Treat every OSS deadline as a firm obligation.

EU regulations require OSS records to be kept for a minimum of ten years. For each transaction, you must be able to evidence: the date and value of the sale, the type of goods or services, the VAT rate applied, the buyer's member state, and proof of the buyer's consumer status. Automated record-keeping through your invoicing software significantly simplifies this obligation.

ViDA 2026: Impact on Marketplace Sellers

The EU's ViDA (VAT in the Digital Age) reform is the most significant overhaul of European VAT rules in decades. The reform package is being phased in between 2025 and 2028 and introduces changes that directly affect anyone selling through digital marketplaces.

The most consequential ViDA measure for marketplace sellers is the strengthening of deemed-supplier rules. Under these rules, a platform (Amazon, bol.com, Shopify, etc.) is treated as if it were the seller for VAT purposes when it facilitates certain B2C transactions. The platform becomes responsible for charging and remitting VAT to the tax authority, not the individual seller. This rule already exists for IOSS scenarios but ViDA significantly broadens its scope to cover more domestic and cross-border transactions.

The second major ViDA pillar is Digital Reporting Requirements (DRR). By 2030, intra-EU B2B transactions will need to be reported to tax authorities in near real-time via standardised e-invoices. While this primarily affects B2B sellers, the data infrastructure required — accurate product classifications, valid VAT numbers, correct country codes — needs to be in place well before the deadline. E-commerce businesses should start investing in data quality now.

For individual sellers, deemed-supplier rules offer relief: if Amazon or Shopify is remitting VAT on your behalf, your direct compliance obligation for those transactions decreases. However, this creates a dependency on the platform's accuracy and requires you to provide complete, correct product and transaction data to your marketplace accounts. Errors in your product listings — wrong country of origin, incorrect product categories — can lead to under- or over-collection of VAT by the platform.

Automate VAT Tracking with Winkel Factuur

Managing cross-border VAT compliance manually is impractical at scale. With sales potentially flowing from Amazon, Bol.com, Shopify, and WooCommerce simultaneously — each order potentially triggering a different EU VAT rate — spreadsheets and manual tracking become a liability rather than a solution.

Winkel Factuur is built specifically for marketplace sellers who need automated, accurate VAT compliance across all their channels:

• Automatic destination-country VAT calculation: Every order from every connected channel is automatically assigned the correct VAT rate based on the buyer's country. No manual rate lookups, no risk of applying the wrong percentage.
• Real-time EU revenue tracking: The VAT dashboard shows your cumulative cross-border B2C sales by country. You can see at a glance when you're approaching the €10,000 OSS threshold.
• Quarterly OSS report generation: At the end of each quarter, Winkel Factuur produces a ready-to-file summary of revenue per destination country and VAT owed — exactly the data structure required for your OSS return.
• Accounting integrations: Direct connections to Exact Online, AFAS, Twinfield, and Snelstart ensure all VAT data flows automatically into your accounting system without manual entry.

With Winkel Factuur, OSS compliance becomes a background process rather than a quarterly scramble. The platform handles the data aggregation, rate calculation, and report generation so you can focus on growing your business.