Currently, you set your default tax codes in the integration (we are using sage 50). This means when you use extracted tax, any left over amount always goes to T0 (our 0% rated tax codes). This works in most cases, however when looking at payment processing, water suppliers etc. They have may portion of there which is taxable and a portion that is tax exempt. The current system puts that tax exempt portion into our 0% rated tax code rather than our exempt tax code. I am then having to go into Sage 50 and manually change the tax codes.

I am asking for the option to chose a default tax code on a supplier basis, so the left over amounts after extraction could either go to a 0% rated code, or a tax exempt code.