• invoice number, must be unique and serial, and you must keep copies of spoiled or cancelled invoice numbers
• invoice date
• your VAT registration number
• your full business name and trading address
• your full registered office details (see link for details)
• the customer full name and trading address
• goods or services description
• the rate of VAT (%) being applied
• the total amount payable excluding VAT
• the total amount of VAT charged

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