Why de-register for VAT?
You must register for VAT with HMRC if your business’ VAT taxable turnover is more than £90,000 (2024/25 tax year).
If your VAT taxable turnover falls below the de-registration threshold of £88,000, your business can ask HMRC to cancel its VAT registration.
You must cancel your registration if you’re no longer eligible to be VAT registered.
This could happen because your business stops trading or you no longer make VAT taxable sales or if you join a VAT group. This, according to HMRC, allows: “Two or more corporate bodies to account for VAT under a single registration number with one of the corporate bodies in the group acting as the representative member.”