How to use the invoice generator
- Enter your business name, address, and contact details.
- Add the customer's billing information.
- Set the invoice number, date, and due date.
- Add each line item with a description, quantity, and unit price. Line totals update as you type.
- Optionally apply a discount and tax — each can be a percentage or a flat amount.
- Click Print / Save as PDF. In the print dialog, choose "Save as PDF" to download.
Totals formula
Line total = quantity × unit price
Subtotal = sum of all line totals
Discount (percentage) = subtotal × discount % ÷ 100
Discounted subtotal = subtotal − discount amount
Tax (percentage) = discounted subtotal × tax % ÷ 100
Grand total = discounted subtotal + tax amount
Frequently asked questions
Is this tax-compliant in my country?
No guarantee. This is a general-purpose invoice template. Rules for GST, VAT, and sales tax vary by jurisdiction and may require specific fields, numbering, and wording. Check the requirements of your tax authority before using this for official tax filing.
Does the invoice save automatically?
No. Data lives in your browser's memory only while the page is open. Print or save as PDF to keep a copy — refreshing the page will clear it.
How do I make a PDF?
Click Print / Save as PDF and choose "Save as PDF" or "Microsoft Print to PDF" in your browser's print dialog.
Does the print view include the form?
No. The print stylesheet hides everything except the invoice preview, so the printed document looks like a clean invoice.
Can I edit the invoice after printing?
Yes. Change any field and click print again. The preview updates live.