IOSS stands for Import One-Stop Shop. It's an electronic portal the EU launched on July 1, 2021, as part of its broader VAT Ecommerce package. The scheme replaced the old €22 low-value consignment relief — which previously let small shipments enter the EU VAT-free — and put every commercial shipment into VAT scope, regardless of value.
For DTC brands shipping from China or anywhere else outside the EU, IOSS is the difference between a clean five to eight day delivery and a package stuck at customs with a surprise VAT bill waiting for the customer. It's also one of the few cross-border tax frameworks that simplifies operations rather than adding to them — if you use it correctly.
The mechanics are straightforward. You register for IOSS in a single EU member state, receive an IOSS identification number, and use that number on every qualifying shipment.
At checkout, you charge the customer VAT at the rate of their destination country (rates range from 17% in Luxembourg to 27% in Hungary, according to the European Commission). You then file a single monthly IOSS return covering all EU sales and remit the collected VAT to your registered tax authority, which distributes it to the correct member states.
The shipment itself moves through customs with VAT marked as already paid. No duty collection at the border. No customer-side surprise charges. No package held in a warehouse waiting for the buyer to pay before release.
IOSS has clear boundaries:
For lightweight Ecommerce products — apparel under 3.5lbs, beauty, electronics, home goods — the €150 ceiling covers the vast majority of order values. That's why IOSS has become the default cross-border VAT mechanism for DTC brands selling into the EU.
The old model — ship goods in, let customs collect VAT and a brokerage fee from the customer at delivery — was a customer experience disaster. Shoppers received an unexpected bill, refused delivery, and disputed charges. Brands ate the returns, the chargebacks, and the negative reviews.
IOSS solves this in three ways:
For brands using direct fulfillment from China, IOSS turns the EU from a complicated patchwork of 27 VAT regimes into a single registration and a single monthly filing.
The EU's One-Stop Shop framework has three variants, and they get conflated constantly:
If your inventory ships from a Portless facility outside the EU directly to an EU customer, IOSS is the scheme you need. If you're holding inventory in an EU warehouse and selling cross-border within the bloc, that's OSS territory.
Non-EU sellers can't register directly. You need an EU-established intermediary — typically a tax representative or specialist service — who handles registration, filing, and remittance on your behalf. The intermediary is jointly liable for the VAT, which is why their compliance standards are strict.
The registration process generally takes two to four weeks, according to guidance from the European Commission's VAT One Stop Shop portal. Once registered, you receive your IOSS number, which you'll pass to your fulfillment partner and customs broker so it appears on every shipment's customs declaration.
Note: your IOSS number is confidential. It should only be shared with parties who need it to clear your shipments — not printed on packaging or visible to customers.
A few patterns we see repeatedly:
Portless was built for brands shipping from manufacturing origins in Asia directly to customers worldwide. IOSS is a core part of how we handle EU-bound shipments — every qualifying order is processed with the brand's IOSS number, VAT is pre-paid at checkout, and packages move through EU customs cleared and ready for last mile delivery.
That's how brands using Portless deliver to EU customers in five to eight days from production, without local warehouses and without the customer-side friction of the legacy model. If you're selling into the EU and want to see how IOSS, DDP shipping, and direct fulfillment work together, contact our team.