Adjusting Box 6 on the VAT return

Hi,

I've looked at the previous queries about adjusting Box 6 on the VAT return and I can confirm we are not using FRS.  however I cannot adjust Box 6 on the VAT return and previous answers have said you cannot do this if you are FRS.  We are using the standard scheme so really need to be able to adjust Box 6!  My accountant has told me I need to make the adjustment.

Thanks!