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How to Make an Invoice

A good invoice gets you paid faster and looks professional doing it. It’s also simpler than most people think — you need about eight pieces of information. Here’s exactly what to include and how to send one.

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What every invoice must include

Whether you’re a freelancer, a small business or billing a one-off job, these are the parts a client (and, later, your accountant) expects to see:

Part	What it is
The word “Invoice”	So it isn’t mistaken for a quote or receipt.
Your details	Business/your name, address and contact — and tax ID if you have one.
Client details	Who you’re billing: name and address.
Invoice number	A unique reference (e.g. INV-001) so both sides can track it.
Dates	Issue date and the due date / payment terms.
Line items	Each service or product, with quantity and rate.
Totals	Subtotal, any tax, any discount, and the final amount due.
How to pay	Bank details, PayPal, or other payment instructions.

Step by step

Open the Invoice Generator and fill in your business details (they’re remembered on your device for next time).
Add the client’s name and address under “Bill to”.
Give it an invoice number and dates. Keep numbers sequential — INV-001, INV-002 — so nothing is skipped.
List each item with a clear description, quantity and rate. The amounts total automatically.
Add tax or a discount if needed, and write your payment terms in the notes.
Click “Download PDF” and send it to your client.

💡 Numbering tip: keep invoice numbers unique and in order. It makes your records easy to reconcile and looks organised to clients. Never reuse a number.

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Do I need to add tax?

It depends on where you are and whether you’re registered for a sales tax like VAT or GST. If you are, show the tax rate and amount as a separate line so the client can see the breakdown. If you’re not registered, you usually don’t charge it — but check your local rules, since this guide is general and not tax advice.

How to send an invoice as a PDF

PDF is the standard because it looks the same on every device and can’t be accidentally edited. With the generator, “Download PDF” gives you a file you can attach to an email. A short, polite email — “Please find attached invoice INV-001 for [project]. Payment terms are [14 days]. Thank you!” — is all you need.

Tips to get paid faster

Set a clear due date, not just “on receipt”. A date creates a deadline.
Make payment easy — put the exact bank details or a payment link right on the invoice.
Send it promptly after the work is done, while it’s fresh.
Keep it clean — a tidy, branded invoice signals you’re professional and organised.

FAQ

Is this invoice generator really free?
Yes. No sign-up, no watermark, no limit on how many invoices you make. The site is supported by ads.

Where is my data stored?
Nowhere online. The invoice is built in your browser, and your business details are saved only on your own device for convenience. Nothing is uploaded.

Can I add my logo?
Yes. Upload it and it appears on the invoice. The image never leaves your device.

What currency can I use?
Pick from common currencies (USD, EUR, GBP, KRW, JPY, INR and more) — the symbol is applied to every amount.

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