In the United Kingdom, the requirement to register for value added tax (VAT) depends on the level of taxable turnover and the nature of the supplies, with different rules applying to U.K.-established and non-established businesses.
For U.K.-established businesses, VAT registration is mandatory once taxable turnover exceeds £90,000 in any rolling 12-month period. This is the statutory domestic VAT registration threshold under U.K. VAT law. Businesses may also opt to register voluntarily below this threshold.
There is no VAT registration threshold for non-U.K. established businesses. Overseas businesses making taxable supplies in the U.K. are generally required to register for U.K. VAT from the first taxable supply, unless a specific simplification or reverse-charge rule applies.
U.K. businesses making cross-border B2C supplies of goods or digital services to EU customers must consider the EU One-Stop Shop (OSS) threshold of €10,000 for total EU sales. Exceeding this threshold requires registration for the EU OSS (via an EU member state) or local VAT registration in each relevant country. The U.K. is not part of the EU OSS scheme following Brexit.
There are no domestic simplification thresholds for most non-resident activities. Registration is typically required once the relevant taxable activity is undertaken, regardless of turnover, for non-U.K. businesses or specific cross-border business models.