Use your standard template that has header, business name, contact details and VAT Number.
Invoice preparation is about bringing all the details together from one business to another to create a document that explains a bill to be paid.
Make sure it includes all your company details, including name, address, payment methods, and details, and VAT number if applicable.
Invoice requires a unique number on everyone you send out. Invoice numbers can vary in format they can be any string of numbers and letters. The uniqueness helps make it easier to track down any specific invoices and easy to the auditor.
Provide a brief concise description of the goods or services supplied so the customer understands what they’re paying for. This saves the customer from coming back to question any details.
It only needs to be a single page if requires a detailed breakdown can always add a separate summary page.
Make sure your invoicing process has been thought out to streamline the whole process.