HM Revenue & Customs

Pension savings tax charges 10 - Foreign tax paid on an unauthorised payment (in £ sterling)

As the unauthorised payments charge and surcharge are not charges on income, they are not exempted from any of the UK's Double Taxation Arrangements.

However, if a payment gives rise to a charge, and a surcharge, you can receive credit for foreign tax paid on the payment that can be set against the charge, and the surcharge.

Enter in this field the sterling equivalent of the amount of any foreign tax you've paid on a payment entered in either 'Amount of unauthorised payment from a pension scheme, not subject to Surcharge' or 'Amount of unauthorised payment from a pension scheme, subject to Surcharge'.

You can convert the amount into sterling using the 'spot rate' for the date of the tax payment.