In this section:
Using HM Revenue & Customs' (HMRC) interest calculator tool you can check the level of interest due against a tax deposit you have already made under the Certificate of Tax Deposit scheme.
You'll need to have your certificate(s) with you to complete the interest calculation.
HMRC cannot be held liable for any incorrect output from this calculator. This calculator merely provides an indication of the interest due to help you decide what action you want to take when surrendering your certificate.
Please choose from the list below what you wish to do with your Certificate of Tax Deposit: