This should be an easy one. In my profit and loss account, it shows that my (4000) general sales = £45k, and flat rate vat adjustment (4999) is £8.5k, making a total turnover of £36k.
But, the real turnover (without VAT) is actually £45k instead of £36k. It seems that the VAT adjustment is double accounted or something.
you charge as normal to your customer say 100+ 20 (vat) = total 120
Flat rate % = say 12%
vat liability will be 120 total X 12% = 14.40 rest will be flat rate adjustment which will become part of turnover for CT purpose, in this case it is 20-14.40=5.6