What do I write on my first invoice?

The word “Invoice”, a unique number, your details, the client’s details, the date and due date, a line for each item with amounts, the total, and how to pay. Add tax only if you’re required to.

How do I send an invoice to a client?

Attach the PDF to a short, friendly email, or send a share link. Confirm the amount and due date in the message and include your payment details.

Do I need to charge tax on my first invoice?

Only if required where you operate. US sales tax depends on your state and service; UK VAT, Australian GST and Canadian GST/HST apply once you’re registered. Show any tax as a separate line.

How to Invoice a Client for the First Time

Sending your first invoice can feel intimidating, but it’s really just a clear request for money you’ve earned. Get the few key details right and you’ll look professional and get paid on time. Here’s the whole process, start to finish.

Step 1: Confirm the details before you invoice

Make sure you and the client agree on what’s being billed and the amount. If you quoted a price or signed a contract, your invoice should match it. Note the agreed payment terms (for example “Net 14”) and how they’ll pay.

Step 2: Fill in the essentials

The word “Invoice” and a unique number — start simple with INV-0001.
Your name or business name and contact details.
The client’s name and address (“Bill To”).
The issue date and the due date.
A line for each item or service, with the amount.
The subtotal, any tax, and the total due.
How to pay — bank details or a payment link.

Step 3: Decide on tax

Only add tax if you’re required to. In the US that depends on your state and whether the service is taxable; in the UK, Australia and Canada you add VAT or GST once you’re registered. If you’re unsure, leave tax off and check with an accountant — and show it as a separate line when you do charge it.

Step 4: Send it and keep a copy

Email the PDF with a short, friendly note, or send a share link. Keep a copy for your records and set a reminder for the due date. If payment is late, a polite nudge usually does the trick.

Create your first invoice free

Our free invoice generator walks you through all of this — no sign-up — and produces a clean PDF with the right tax model for your country.