An invoice template is a pre-designed document that can be used to create professional invoices for your business. A well-designed invoice template can help you to present your business in a professional light and make it easier for your clients to pay their bills.
In the UK, there are a few specific requirements that your invoice template must meet. These requirements include:

Your business name and address
In addition to these requirements, there are a number of design elements that can help to make your invoice template more professional and trustworthy.
Design Elements
Font Choice: Choose a font that is easy to read and professional. Avoid using fonts that are too small or too ornate.
Layout: The layout of your invoice template should be clear and easy to follow. Use headings and subheadings to break up the text and make it easier to read.
Colors: Use colors that are easy on the eyes and that complement your brand. Avoid using too many colors, as this can make your invoice look cluttered.
Logo: If you have a logo, include it at the top of your invoice template. This will help to make your invoice more recognizable.
Contact Information: Include your contact information at the bottom of your invoice template. This will make it easy for your clients to get in touch with you if they have any questions.
Key Sections
Header: The header of your invoice should include your business name and address, your client’s name and address, and the invoice number and date.
Body: The body of your invoice should include a description of the goods or services provided, the quantity of goods or services provided, the unit price of goods or services provided, the total cost of goods or services provided, the VAT amount (if applicable), and the total amount due.
Footer: The footer of your invoice should include your contact information and a payment due date.
Additional Tips
Use a consistent font and style throughout your invoice template.
By following these tips, you can create a professional and trustworthy invoice template that will help your business to look its best.