How to effect the clawback of income tax relief on the EIS investment sold within 3 years?

You must notify HMRC of the event as soon as you can as the clawback of EIS relief is not made under self-assessment but by a special assessment., and so HMRC will need to calculate and send this to you in order to settle it. . We also advise you to include a calculation showing how much relief needs to be withdrawn, and copies of the original EIS3 certificates.