How to Send Your First Invoice as a Freelancer

You finished your first paid job. The client said it looks great. Now you need to send an invoice. But how?

If you've never invoiced anyone before, the process can feel intimidating. What goes on it? How do you send it? What if they don't pay? This guide walks you through everything you need to know to send a professional invoice as a freelancer, even if it's your first one.

Why a proper invoice matters

A casual "hey, send me $5,000" message might work between friends, but it's not how professionals do business. A real invoice:

• Acts as a legal record of what you delivered and what you're owed
• Tells the client exactly how and when to pay
• Makes you look professional and established
• Is required for your tax records (and theirs)
• Gives you something to reference if payment is late

If you want to be paid like a professional, you have to invoice like one.

What every invoice must include

At minimum, every invoice needs:

1. The word "Invoice" at the top
2. A unique invoice number (e.g. INV-0001)
3. Your business name and contact details
4. The client's name and contact details
5. The invoice date
6. A due date (e.g. "Due within 14 days")
7. A clear description of what you delivered
8. The amount owed
9. Tax/VAT if applicable (shown separately)
10. Payment instructions (your bank details or a payment link)

Skip any of these and you're inviting confusion or delayed payment.

A simple invoice example

Here's what a basic freelancer invoice looks like:

Plus the company info, invoice number, date, due date, and bank details. That's it. You don't need anything fancier than this for most jobs.

How to send your invoice

You have three main options:

1. Email

The most common and reliable way. Attach the invoice as a PDF (never as an editable Word document) and write a short email like:

Hi [Client Name],

Please find attached invoice [INV-0001] for the work completed. The total is $690 and payment is due by [date].

Banking details are included on the invoice. Let me know if you have any questions.

Thanks, [Your Name]

Keep it short and friendly. No need to over-explain.

2. WhatsApp

For smaller jobs or trades work, WhatsApp is increasingly common. The same rules apply: send a PDF, not a typed message. A typed message looks unprofessional and can be lost in chat history.

3. Client portal

If you're using invoicing software like EasyNest, you can generate a PDF and send the link directly. This also lets you track when the client views the invoice.

How to handle payment

Make it easy for the client to pay you. Include:

• Bank account details (account name, number, branch/sort code)
• Reference number they should use (your invoice number works well)
• Accepted payment methods (EFT, card, payment link, etc.)

The fewer barriers you put in the way, the faster you'll be paid.

Common first-invoice mistakes

Forgetting to number your invoices. Even if it's your first one, start with INV-0001. You'll thank yourself when you have 50 invoices and need to find a specific one.

Vague descriptions. "Web work" is not enough. "Designed and built landing page with 3 sections, including responsive design and contact form" is much better.

No due date. Without a deadline, payment slides indefinitely. Always include one (7, 14, or 30 days are common).

Sending a Word document. PDFs are read-only and look more professional. Always convert before sending.

Inflated rounded numbers. Don't round $487 up to $500 unless you've quoted a flat rate. Show the actual breakdown.

What if they don't pay?

It happens. Here's what to do:

1. Wait until the due date passes. Don't chase early.
2. Send a polite reminder. Something like: "Hi, just checking in on invoice INV-0001 which was due on [date]. Let me know if there's anything you need from my side."
3. Wait a week, then follow up again. Slightly firmer this time.
4. After 2-3 reminders, send a formal demand. State the consequences if payment isn't made.

For a full guide on this, read our post on how to politely chase a late invoice with email templates.

Make it easier on yourself

You shouldn't be formatting invoices in Word or Excel for every job. It's slow and error-prone.

EasyNest lets you create professional, numbered, PDF invoices in seconds. Add your business details and bank info once, then every invoice you send is consistent and professional. It's free to start, no credit card required.

Send your first invoice with EasyNest.