Make an impression with your first invoice (and get paid faster)? Use PIA Go!

28/05/2025

Sending your first invoice as a self-employed professional or sole proprietor? That’s always exciting. What exactly do you need to include? How do you make sure everything is correct? And more importantly: how do you get paid quickly without turning it into an administrative nightmare? No worries—with PIA Go!, you can create a correct and professional invoice in no time. And if you’re unsure, there’s always an accountant ready to help you out.

What should be on your invoice (and what shouldn’t)?

Let’s be honest: an invoice isn’t a piece of art, but it is your business card. And the law clearly states what must be included:

  • Your name and VAT number (no, your nickname doesn’t count)

  • Your customer’s name and address

  • Invoice number (#0001 already sounds good, right?)

  • Issue date

  • What you delivered or performed (be clear, not just “services”)

  • Price per unit or per hour

  • Total amount including and excluding VAT (important for transparency)

  • Your bank account number

  • Structured payment reference

  • Standard payment term

With PIA Go!, all of this is included by default in your invoice template. You simply fill in the required fields—our tool takes care of the rest. You can also add optional details such as your phone number, website, or even your terms and conditions. It doesn’t get easier than this.

PIA Go! – your invoicing buddy with a human touch

Where PIA Go! really stands out? Ease of use and support.

You can quickly create a professional invoice that meets all legal requirements and looks great (yes, even in your favorite color).

And you’re never on your own. PIA Go! works with experienced accountants who double-check everything and provide advice when you’re unsure. No criticism—just solid guidance. Think: sidekick instead of schoolteacher.

That way, you stay in control, with an expert in the background who has your back.

Get started with PIA Go!

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FAQ

A correct invoice must include the following details:

  • Your full name and VAT number

  • The customer’s name and address

  • A unique invoice number

  • Invoice date

  • Description of the goods or services provided

  • Price per unit and total amount

  • Applied VAT rate and VAT amount

  • Total amount payable

  • Your bank account number and structured reference

  • Payment term

With PIA Go!, these elements are automatically included in the invoice template, allowing you to easily create a professional invoice.

A clear and professional invoice increases the likelihood of timely payment. With PIA Go!, you can create invoices that automatically meet legal requirements and look polished. In addition, the platform offers support from experienced accountants who can advise you on best invoicing practices.

Your company number is the unique identification number of your business, registered with the Crossroads Bank for Enterprises (CBE). When you activate this number for VAT purposes, it also becomes your VAT number. This number must be stated on all your invoices.

Yes, PIA Go! allows you to personalize your invoices. You can add optional details such as your phone number, website, and terms and conditions. You can also adapt the design to match your branding, ensuring your invoices look professional and recognizable.

PIA Go! offers a user-friendly solution for creating invoices that comply with all legal requirements. You benefit from:

  • Automatic inclusion of mandatory invoice details

  • Professional and customizable invoice templates

  • Support from experienced accountants

  • Efficient administration and time savings

With PIA Go!, you can focus on your core activities while your invoicing remains professional and compliant.

Charlotte
Written by Charlotte Backelandt , Marketing & Content Specialist,
reviewed by Tom Castelein, Personal Income Tax Expert.