In the header, it’s essential to include your business name (or personal name), business address, contact information, and your client’s details.

A unique invoice number helps you and your client keep track of transactions efficiently. This number should be consecutive and never repeated.

Yes, including the invoice date is crucial. This is the date you generate and send the invoice to your client.

It’s vital to clearly itemise the plumbing services you provided. Provide a concise description and the cost of each service. If required, create a detailed breakdown.

To determine the total amount due, simply add up the costs of the services you rendered. Additionally, include any taxes or extra charges, if applicable.

Yes, be sure to outline your payment terms on the invoice, including the due date and any late payment penalties, if applicable

The applicability of VAT depends on your turnover and VAT registration status. If you are VAT registered, you must include your VAT number and charge VAT accordingly.