A full UK VAT invoice needs a sequential number, tax point, both VAT registration details, customer details, rates and VAT totals in sterling. Simplified rules apply to sales of £250 or less including VAT.
A field-by-field checklist of the particulars Rule 46 of the CGST Rules, 2017 requires on a GST tax invoice, with the differences for registered buyers, larger B2C invoices and interstate sales.
