A few customers have mentioned to me that they would expect changes made to the Capital Allowances calculator on a Partnership return to automatically update box 3.25.

Unfortunately this is not going to be possible, as users could manually complete box 3.25 with the correct amount, prior to entering the capital allowances. It would therefore be wrong in this circumstance to change box 3.25.

The difficulty arises from box 3.25 not being a fully calculated box. i.e. it mixes figures that have already been entered onto box 3.22 with figures that have not been entered anywhere else on the return.

I propose the following feature:
Above box 3.25 , have an extra input box "Expenses allowable for tax (excluding capital allowances)"
Then change box 3.25 to automatically calculate from box 3.22 and the separate expenses box.