Last Updated: April 2026
Most US business owners assume VAT and GST are European problems — taxes paid by customers in other countries that don’t affect American companies. This assumption is increasingly wrong. Since 2015 in the EU and 2017 in Australia, regulations have explicitly extended VAT and GST obligations to non-resident digital service providers selling to consumers in those countries. If you run a SaaS company, sell digital downloads, or ship physical goods to EU, UK, or Australian customers, you may already be legally obligated to register, collect, and remit local consumption tax — and may not know it.
The consequences of missing these obligations range from back-tax assessments with interest to being blocked from operating in those markets. The good news: compliance infrastructure has improved significantly. The EU’s One Stop Shop (OSS) system allows a single registration covering all 27 member states. Payment platforms including Stripe Tax, Shopify Tax, and dedicated software like Avalara and TaxJar can automate most of the collection and reporting burden. This guide covers exactly when you must register, the practical steps to do so, and the key distinctions that trip up US businesses most often.
The EU’s One Stop Shop (OSS) system, introduced July 2021, is the primary compliance mechanism for US digital businesses selling to EU consumers. Before OSS, you needed a separate VAT registration in each EU country where sales exceeded local thresholds — potentially 27 registrations. OSS consolidated this into a single registration in one EU member state covering all 27.
For cross-border digital services (software, streaming, downloads, SaaS, e-books, online courses), the EU applies a €10,000 aggregate threshold across all 27 member states. Once your total EU digital service sales to consumers exceed €10,000 in a calendar year, you must register for OSS and charge VAT at the rate applicable in each consumer’s country. Below €10,000: you may charge VAT at your home country’s rate (or zero if you’re a US company) — but in practice, most US businesses are above this threshold quickly.
US businesses cannot register for the Union OSS (which is for EU businesses). You register for the Non-Union OSS (IOSS for imports, or Non-Union OSS for services). Step 1: choose an EU member state as your registration country — any EU country works; Ireland, Netherlands, and Luxembourg are popular for English-language support and efficient tax authorities. Step 2: register online via that country’s tax portal (e.g., Ireland’s Revenue Online Service). Step 3: collect VAT at the rate of each EU consumer’s country at checkout. Step 4: file quarterly OSS returns and remit the aggregate collected VAT. You do not need a local entity or bank account in the EU for OSS registration — it can be done entirely remotely.
For physical goods shipped from the US to EU consumers (fulfilled via Amazon FBA in EU, Shopify with EU warehouse, etc.), different rules apply. The €150 import threshold determines whether IOSS (Import One Stop Shop) or standard customs duty and VAT applies. For goods under €150: IOSS allows VAT collection at point of sale. For goods over €150: standard import VAT and customs duties apply at the border, typically collected from the buyer on delivery. Most US e-commerce sellers use a combination of IOSS for low-value parcels and standard import procedures for higher-value shipments.
Many US SaaS companies assume their customers are all businesses (B2B) and therefore the reverse charge applies — meaning the customer handles the VAT and the US seller doesn’t need to register. This assumption is often wrong. If any of your EU customers are individuals or unregistered businesses (no VAT number), those sales are B2C and you must charge EU VAT. The practical test: at checkout, do you validate the customer’s EU VAT number? If not, or if it’s not provided, treat the sale as B2C. Avalara, TaxJar, Stripe Tax, and Paddle all handle this validation and rate calculation automatically.
The UK left the EU VAT system on January 1, 2021. Since then, UK VAT and EU VAT are completely separate systems with no crossover. EU OSS registration does not cover UK sales. UK IOSS registration does not cover EU sales. If you sell to both EU and UK consumers, you need registrations in both systems.
The £85,000 annual UK turnover threshold applies to all businesses, UK-resident and non-resident alike. Turnover is calculated from all taxable UK supplies — goods delivered to UK addresses and digital services provided to UK consumers. Once you exceed £85,000 in a rolling 12-month period, you must register for UK VAT within 30 days. The UK also operates a nil threshold for non-established taxable persons selling digital services to UK consumers — meaning if you are a non-UK business, the £85,000 threshold technically does not apply to your digital service sales (you are required to register from the first sale). In practice, HMRC enforces the nil threshold inconsistently for small US sellers, but the obligation exists legally from day one of digital sales to UK consumers.
Standard rate: 20% (applies to most goods and digital services). Reduced rate: 5% (energy, children’s car seats, some home renovations). Zero rate: 0% (food, children’s clothing, printed books). Most US digital service exports to UK consumers are subject to 20% standard rate VAT.
Register via HMRC’s Government Gateway online portal. You will receive a UK VAT registration number (format: GB followed by 9 digits). No UK entity or physical presence is required for VAT registration. You must file UK VAT returns (quarterly by default) via Making Tax Digital (MTD) — HMRC’s digital filing requirement. MTD requires compatible accounting software (Xero, QuickBooks, Sage, or HMRC-compatible bridging software). UK VAT returns are due one month and seven days after the end of each quarterly period.
Physical goods shipped from the US to UK consumers are subject to UK import VAT (20%) and any applicable customs duties. For consignments under £135: UK VAT is collected at point of sale by the online marketplace or seller, and remitted directly to HMRC via the seller’s UK VAT return. For consignments over £135: the buyer pays import VAT and any customs duties at the border. Amazon, eBay, and Etsy are registered as “deemed suppliers” for UK purposes and handle VAT collection on sub-£135 consignments sold through their platforms.
Australia introduced GST obligations for non-resident businesses supplying digital products and services to Australian consumers in 2017. The rules broadly mirror the EU model: a registration threshold, consumer-based taxation, and a simplified registration system for overseas businesses.
The Australian GST registration threshold is A$75,000 in GST turnover from supplies connected with Australia (i.e., sales to Australian consumers). For most US digital businesses, this means A$75,000 in Australian customer revenue triggers the obligation. GST rate is a flat 10% on the taxable value of all supplies. Importantly, this threshold applies per business — not per product category. Once you hit A$75,000 across all Australian sales, all sales (not just those above the threshold) become subject to GST.
The Australian Taxation Office (ATO) offers a Simplified GST Registration process specifically for non-resident businesses. Registration is done online at ato.gov.au. You do not need an Australian business number (ABN) in the traditional sense — you register specifically for the simplified GST system. Quarterly GST returns (Business Activity Statements) are filed online. GST collected is remitted to the ATO in Australian dollars, either via international bank transfer or Australian dollar bank account. The ATO provides English-language guidance and support for overseas registrants.
Digital products and services taxable in Australia include: SaaS subscriptions and software licenses delivered electronically; streaming services (video, music, games); digital downloads (e-books, apps, templates, stock photos); online courses and educational content; online advertising services. Physical goods shipped from the US to Australian consumers are generally not subject to GST collection by the overseas seller for consignments under A$1,000 (customs GST exemption) — though this threshold has been debated politically. Over A$1,000: standard customs and import GST apply.
For US businesses wanting to automate EU, UK, and Australian tax compliance simultaneously, the leading solutions are: Stripe Tax (built into Stripe payments, handles EU VAT, UK VAT, and AU GST automatically based on customer location); Paddle (acts as merchant of record, handling all tax obligations on your behalf — you receive net amounts); Avalara (enterprise solution for complex multi-jurisdiction compliance); TaxJar (popular for e-commerce, integrates with Shopify/WooCommerce/Amazon). Using a Merchant of Record (MoR) like Paddle or LemonSqueezy is the simplest approach for US SaaS companies — the MoR becomes the seller of record for tax purposes, taking all VAT/GST obligations off your plate entirely.
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Explore Deel for Global Compliance →If your total cross-border EU digital service sales exceed €10,000 in any calendar year, yes — EU VAT registration via the Non-Union OSS is legally required. Below €10,000 across all EU countries combined, you are technically exempt. However, many US SaaS companies use a Merchant of Record (like Paddle or LemonSqueezy) which handles VAT registration and collection on their behalf regardless of revenue level, removing the compliance burden entirely.
If all your EU sales are to registered businesses (B2B) and you correctly validate their VAT numbers via VIES (the EU VAT Information Exchange System), the reverse charge mechanism applies — the buyer accounts for VAT in their country, and you do not charge or collect it. In this scenario, you typically do not need EU VAT or OSS registration. However: any sales to non-VAT-registered buyers (individuals, small businesses under the VAT threshold, charities) are B2C sales subject to EU VAT. Validate every customer’s VAT number at checkout.
No. The UK left the EU VAT system on January 1, 2021. EU OSS registration (or IOSS) covers only EU member states. UK sales require a separate UK VAT registration via HMRC. If you sell to both EU and UK consumers, you need registrations in both systems.
You are technically in arrears for VAT that should have been collected and remitted. EU tax authorities (HMRC, French DGFIP, German Finanzamt, ATO) do conduct compliance campaigns targeting US digital businesses. Voluntary disclosure typically results in back-tax assessments with interest but reduced penalties versus discovery. Consult a VAT specialist for a voluntary disclosure approach in each jurisdiction. Going forward, register immediately and maintain compliance.
Yes — the reverse charge mechanism is the primary exemption for B2B digital service sales. When you sell to an EU-registered business, you provide your invoice without VAT, include the buyer’s VAT number, and note ‘VAT reverse charged by customer under Article 196 of EU VAT Directive.’ The buyer then accounts for VAT in their own country. To use reverse charge, you must validate the buyer’s VAT number at the time of sale via the EU’s VIES tool (ec.europa.eu/taxation_customs/vies).