Free online invoice generator

Why use Dimax Software Invoicing?

Dimax Software Invoicing is a free, browser-based invoice generator built for freelancers, contractors and small businesses. There is nothing to install and no account to create — open the page, fill in your details, and download a clean, professional tax invoice as a PDF.

Features

• Add unlimited line items with quantity, unit price and per-line discount.
• Automatic VAT calculation with tax-inclusive or tax-exclusive totals.
• Not registered for VAT? Switch it off for a plain invoice with no VAT numbers, tax column or tax total.
• Switch to Quotation to send a quote instead — same details, headed "Quotation" with a Valid Until date.
• One-click PDF download, sized to fit a single A4 page.
• Editable business, client, banking and reference details.
• Add your own logo — resized in your browser and stored on your device, never uploaded.
• Remembers your business and banking details on your device, so you only type them once.
• Works offline in your browser — your data stays on your device.

How it works

1. Enter your business and client details.
2. Add your line items — totals and VAT update as you type.
3. Click Download PDF to save or email your invoice.

Frequently asked questions

Is this invoice generator free?

Yes. You can create, edit and download unlimited tax invoices as PDF for free, with no sign-up required.

Can I download my invoice as a PDF?

Yes. Fill in your details and click Download PDF to save a professional A4 invoice you can email or print.

Does it calculate VAT and discounts?

Yes. Add line items with quantity, unit price and discount, choose tax-inclusive or exclusive, and totals with VAT are calculated automatically.

Can I put my own logo on the invoice?

Yes. Click "Add your logo" at the top of the invoice and choose a PNG, JPG or SVG. It appears on the invoice and in the downloaded PDF, and it is remembered for next time. The image is resized inside your browser and stored on your device — it is never uploaded to us or anyone else.

Do I have to retype my business details every time?

No. Your business name, address, VAT number and banking details are remembered in your own browser, so the next invoice opens already filled in — and your invoice numbering carries on from the last one you downloaded. Nothing is uploaded anywhere: it is stored on your device only, and client details and line items are never saved. You can clear it at any time with "Forget my details".

Can I create a quotation as well as an invoice?

Yes. Choose "Quotation" as the document type and the page becomes a quote — headed "Quotation" instead of "Tax Invoice", with a "Valid Until" date in place of "Due By". Line items, discounts and VAT work exactly the same way, and you download it as a PDF the same way.

Can I use this if my business is not registered for VAT?

Yes. Switch off "My business is registered for VAT" and you get a plain invoice — headed "Invoice" rather than "Tax Invoice", with no VAT numbers, no tax column and no tax total. Only a registered VAT vendor may issue a tax invoice or charge VAT, so if you are below the registration threshold this is the document you should be sending.

Learn more

New to VAT invoicing? Read our guide to South African tax invoice requirements — the 15% VAT rate, full vs abridged invoices, the R5,000 threshold, and a complete SARS checklist.