The new guidance means all end-of-year letters require updating
The changes only apply to Method A and B. No changes are required for those on the Standard Method.
The changes mean that you have some options:
Use or adapt the , which has been reviewed by HMRC
Produce your own template following HMRC’s new requirements
Use the HMRC template (suitable where de-minimis is in operation, but not where you need to confirm donations above £100/ £1000 in end-of-year letters)