SACM3010 | Making and Amending Claims: Who Can Make Claims
From HM Revenue & Customs · Self Assessment Claims Manual
The taxpayer will normally make the claim although his agent may deliver it.
Claims may be made on behalf of an incapacitated person by
a trustee
a guardian
a tutor
a curator, or
a person who has been charged with tax on the profits of the incapacitated person for example, in a representative capacity by virtue of S42(8). Note: With effect from tax year 2012-13 onwards, this no longer applies.
In the case of a partnership the nominated partner must make the claim.