I'd love to be able to specify the subtotal after VAT is applied as well, since that's often what you quote in practice and converting that to pre-VAT prices is a PITA.
VAT is also actually called BTW here, so the ability to change how VAT is called would be useful as well.
Do you quote companies, or people? When I quote companies, I never include VAT (I guess you are also Dutch). Including VAT makes you sound more expensive, and the client can deduct the VAT anyway. So quote without VAT for companies.
I was actually speaking on behalf of one of their target markets, as me repeatedly having to ask my personal trainer to correct his VAT calculations came to mind ;)
Well, there's the up-sell :). FreeAgent does these things of details in the pay-for tool, including setting the invoice language, which translates the VAT field, for example.
VAT is also actually called BTW here, so the ability to change how VAT is called would be useful as well.