Free invoice generator

How to create and send a professional invoice

An invoice is a legally binding document requesting payment for goods or services delivered. A compliant invoice must include: the word "Invoice" and a unique invoice number, the date of issue and payment due date, your full name or company name and contact information, the client's name and address, an itemised list of goods or services with quantities and unit prices, and the total amount due including any applicable taxes.

Invoice numbers should follow a sequential pattern (INV-001, INV-002) or incorporate the year and month (2026-10-001) to make your records easy to audit. Always include clear payment terms, Net 30 means payment within 30 days of the invoice date, which is the most common professional standard. Net 7 or Net 14 are appropriate for freelancers and small businesses where cash flow is critical.

This tool generates a clean, printable HTML invoice. Use your browser's Print function (Ctrl+P / Cmd+P) and select "Save as PDF" to create a PDF you can email directly to your client. No data leaves your browser, the entire invoice is built and rendered locally. For recurring billing or automated payment collection, consider pairing this tool with a dedicated invoicing platform.

Invoice best practices

• Always include a clear due date, invoices without one are paid later on average.
• Specify accepted payment methods in the notes field.
• Chase overdue invoices at 1 day, 7 days, and 14 days past due.
• Keep copies of all invoices for tax records (minimum 7 years in most jurisdictions).