How do I report capital gains disposals on an R40 Claim for repayment?
There is a specific form, R40(CG), to report capital disposals relating to an R40, however these forms are not currently available in TaxCalc nor are they available from HMRC’s website. You can obtain a copy by telephoning HMRC on 0845 9000 404. Alternatively, you can create a separate TaxCalc file and enter the disposals there. Then print out the SA108 capital gains pages and attach them to the R40 to report your gains, though officially this is not the correct way to do it.