how do i calculate my flat rate vat return?
You calculate the tax you pay by multiplying your VAT flat rate by your ' VAT inclusive turnover'. Example You bill a customer for £1,000, adding VAT at 20% to make £1,200 in total. You're a caterer, so the VAT flat rate for your business is 12.5%. Your flat rate payment will be 12.5% of £1,200, or £150.