Each company with a VAT number is required to declare and pay VAT to the tax authority by the 20th day of the following month. In a VAT return (or ‘declaration’), a taxable person (business) gives the tax authorities in the EU country where they are registered information about their taxable (taxed/exempt) transactions; the VAT they have charged their customers (output tax) and been charged by their suppliers (input tax); the amount of VAT payable (or refundable)