The Certificate of Tax Deposit scheme has closed. You cannot buy a new certificate through this page or calculate interest on a new deposit.
Checked . Based on official GOV.UK guidance. About our calculators and content.
When it closed
The scheme stopped accepting new purchases on 23 November 2017. HMRC honoured existing certificates until 23 November 2023.
If you still have a certificate
Read HMRC’s closed-scheme guidance for information about unclaimed balances and who to contact. This website cannot check a certificate or recover a balance.
Source: Read the original rules and guidance. Content checked 23 October 2026. General explanation, not personalised tax advice.