How to Create an Invoice: A Simple Step-by-Step Guide

Start with the essential invoice details

A good invoice tells the client who is billing them, what they are paying for, when payment is due, and how much they owe. It should be easy to scan and unambiguous enough for accounting records.

At minimum, include your business name, client name, invoice number, issue date, due date, itemized work or products, tax if applicable, the total amount due, and payment instructions.

Build the invoice in order

1. Add your business name, address, email, phone number, and optional logo.
2. Add the client's billing name and address exactly as they want it recorded.
3. Choose a unique invoice number and set the invoice date and due date.
4. List each product, service, or project milestone as a separate line item.
5. Add quantity, unit price, discounts, taxes, shipping, fees, and paid amounts where relevant.
6. Write payment terms and payment details so the client knows how and when to pay.
7. Review the PDF preview before sending or saving the invoice.

Make line items specific

Clear line items reduce questions and speed up payment. Instead of writing a vague line such as "services", use a description such as "Website copywriting - homepage and pricing page" or "Monthly bookkeeping support - June 2026".

If the work is project based, line items can map to milestones. If the work is hourly, include the service, hours, and rate. If you sell products, include quantity, unit price, and any SKU or reference that helps the buyer identify the purchase.

Check before sending

• The invoice number is unique and follows your numbering system.
• The client name, contact details, and billing address are correct.
• Taxes, discounts, fees, and paid amounts are applied to the right subtotal.
• The due date and payment method are visible.
• The final amount due matches the agreement, quote, or purchase order.