How to Make an Invoice: A Free Step-by-Step Guide
Learn how to make a professional invoice step by step — what to include, how to number invoices, how to set payment terms, and how to create one free in minutes.
Jun 20, 2026CedarBill

An invoice is a document you send a client to request payment for goods or services. A clear, professional invoice gets you paid faster and keeps your books tidy. Here's exactly how to make one.
What every invoice should include
- The word "Invoice" and a unique invoice number
- Your business details — name, address, email, and tax ID if you have one
- Your client's details — name and contact information
- Invoice date and due date
- A line-item list of what you're billing for, with quantity and rate
- Subtotal, tax or VAT, any discount, and the total due
- Payment terms and instructions — how and when to pay
Step by step
- Add your business and client information. Put your details at the top and your client's under "Bill to".
- Give the invoice a number. Use a simple sequence like
INV-0001,INV-0002. Consistent numbering makes records and taxes easier. - Set the dates. Include the issue date and a due date — "Net 14" or "Net 30" are common.
- List your line items. Describe each service or product, with quantity and rate. The amount for each line is quantity × rate.
- Add tax and any discount. Apply your tax or VAT percentage and any agreed discount, then show the final total clearly.
- Include payment terms. State accepted payment methods and a short thank-you or late-payment note.
- Send it as a PDF. A PDF looks professional and can't be edited in transit.
Tips to get paid on time
- Invoice promptly — the sooner you send it, the sooner you're paid.
- Make the total and due date impossible to miss.
- Offer an easy payment method and spell out the details.
- Number every invoice and keep copies for your records.
Create your invoice now
You don't need accounting software to make a clean invoice. Use our free invoice generator to fill in your details, add line items and tax, and download a professional PDF in under a minute — no sign-up and no watermark.