How to Invoice Your First Client: Complete Guide 2025

Introduction

Congratulations! You've just landed your first client as a freelancer. Now comes the crucial question: how do you invoice correctly?

This guide walks you through each step to issue your first invoice in full compliance.

1. Check your legal status

Before invoicing, make sure you have a legal business structure:

Sole proprietorship : the simplest way to start

LLC/Corporation : for higher revenues

Umbrella company : if you prefer to avoid paperwork

2. Mandatory invoice information

Your invoice must include:

Your name/business name and address

Business registration number

Client name and address

Invoice date

Unique invoice number

Detailed description of services

Subtotal and total amounts

Tax rate (or tax exemption notice)

Payment terms

3. Set your payment terms

Standard deadlines:

Due on receipt : ideal for small amounts

Net 30 : professional standard

Net 45 : for large companies

4. Send your invoice

Several options:

By email with PDF attachment

Through invoicing software like Robi AI

By registered mail (for large amounts)

5. Track payments

Don't let unpaid invoices pile up:

Send a polite reminder after 7 days

Send a formal notice after 30 days

Consider legal action if necessary

Conclusion

Getting your invoicing right from the start will save you many headaches. With a tool like Robi AI, you can automate the entire process and focus on what you do best.