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Free tool · no sign-up

Free invoice generator for contractors and clinics

Fill in your business, the customer and the line items, and print or save a clean, professional invoice as a PDF. No account, no watermark, no upload: everything stays in your browser. Built for the trades and practices our templates serve, but it works for any small business.

Your business

Bill to

Line items

Notes & terms

Your invoice is saved in this browser only, so you can come back to it. Nothing is uploaded. In the print dialog choose “Save as PDF” to get a file.

Your Business Name

Address

INVOICE

Invoice # INV-1001

Date September 23, 2026

Due October 7, 2026

Bill to

Customer name

DescriptionQtyRateAmount
Service call / diagnostic1$89.00$89.00
Labor2$95.00$190.00
Parts and materials1$120.00$120.00
Subtotal$399.00
Total$399.00
Balance due$399.00

Thank you for your business.

Payment due within 14 days of the invoice date. A late fee of 1.5% per month applies to overdue balances.

How to use it

  1. 1

    Add your business and the customer

    Your business name, address and contact details go top-left; the customer top-right under Bill to. Set the invoice number, date and due date. Sequential invoice numbers that match your estimates prevent most payment disputes.

  2. 2

    Enter line items

    One line per service, labor block or part, with a quantity and rate. Keep descriptions specific ("Replace 40-gal water heater, labor" beats "Labor"): customers pay faster when they can see what they bought.

  3. 3

    Add tax and any deposit

    Enter your sales-tax rate if you charge it, and any deposit already collected. The balance due updates automatically.

  4. 4

    Print or save as PDF

    Click Print / Save as PDF. In the print dialog choose Save as PDF to get a file to email, or print it for the truck. Your invoice stays saved in this browser so you can reuse the header next time.

Read the method behind this tool: The paperwork every service business needs.

Free Invoice Generator FAQ

Is this invoice generator really free?

Yes. There is no paid tier and no watermark. It is a companion to our editable Word and PDF invoice templates, which you might prefer when you want your logo, your layout and a file you can reuse in Word.

Where is my invoice stored?

In your own browser's local storage on this device. We never receive it. Clearing browser data or clicking Clear invoice removes it, so save the PDF when you are done.

Can I add my logo?

Not in the web tool. If you want a logo, your own colours and a reusable master file, the Word invoice templates on this site are built for that and take about two minutes to brand.

What should an invoice include?

Your business name and contact details, the customer's name and address, a unique invoice number, the invoice and due dates, itemised services and parts with quantities and rates, subtotal, tax, any deposit, the balance due and your payment terms.