The VAT Flat Rate Scheme allows businesses to pay VAT as a fixed percentage of their total turnover, which includes VAT. The applicable percentage varies based on the business type. This scheme is designed to simplify VAT accounting, thereby reducing the administrative burden associated with VAT compliance.

The scheme is open to businesses that expect their annual taxable turnover in the next 12 months to be no more than £150,000 (excluding VAT). This annual taxable turnover includes all sales—standard, reduced, zero rate, and other supplies—but excludes the actual VAT charged, VAT-exempt sales, and sales of capital assets.

Since April 2017, a 'limited cost trader' test has been in place. Businesses that meet the conditions as limited cost traders must use a fixed rate of 16.5% under this scheme. For these types of businesses, it is usually beneficial to opt out of the VAT Flat Rate Scheme and use traditional VAT accounting.

Once enrolled, businesses can remain in the scheme as long as their total income does not exceed £230,000 in any 12-month period, with special provisions for temporary increases in turnover. Additionally, there is a 1% discount available for businesses in their first year of VAT registration.