Invoicing is a legal obligation. Decree-Law 28/2019 is clear: anyone who sells goods or provides services in Portugal must issue an invoice, even without a customer request. Failure to do so risks fines from 300€ to 3,750€.
Free forever for self-employed
No subscriptions, no limits, no tricks. Just reliable, certified invoicing — always free for you.
Now even in chat!
Create and send invoices directly in the chat you already use. Type or speak — your invoice is ready.
Now even in chat!
Create and send invoices directly in the chat you already use. Type or speak — your invoice is ready.
Invoicing
Invoice without complications — fast, simple, and professional. Invoicing with automatic submission to AT is free forever.
Access via web and mobile app (Android & iOS)
Unlimited invoices
Automatic communication with AT (series and invoices)
Multiple accounts under the same login
Import of clients and items
Import of clients and items
Your logo on invoices
Send invoices by email
Multiple accounts under the same login
Export to SAF-T and excel
Management & Access
Discover advanced features in paid plans.
Invoice issuing via WhatsApp (voice and text)
Scheduled invoices
Automatic VAT rate suggestion on invoices
Digital document archive
Three simple plans
VAT Exempt
Subject to VAT
For sole traders under the standard VAT regime
FIZ Base
Invoicing
0
€
FIZ Auto Pro
FIZ Base + Soc.Security + VAT
14
.99
€
FIZ Prime Pro
FIZ Auto Pro + Intra-EU VAT + AI Tax
24
.99
€
Frequently Asked Questions
Is FIZ really free?
Is FIZ really free?
Yes. Providing free invoicing is our mission to support entrepreneurship and business growth in Portugal.
Who can use FIZ?
Who can use FIZ?
FIZ was designed for micro-businesses, sole traders, and self-employed professionals.
Are FIZ invoices certified by AT standards?
Are FIZ invoices certified by AT standards?
Yes. Every invoice issued with FIZ is certified by the Tax Authority (Cert. nº 3041) and fully compliant with Portuguese invoicing law.
Can I customize my invoices?
Can I customize my invoices?
Yes! Upload your logo and customize your invoices to match your brand identity.
What do I need to start using FIZ?
What do I need to start using FIZ?
Just fill out the registration form. In 15 seconds, your system is ready. If you have questions, our team is here to help.
Do I need an accountant to use FIZ?
Do I need an accountant to use FIZ?
FIZ was designed so anyone can issue certified invoices easily, even without accounting knowledge. You can still share reports with your accountant if you wish — but it’s optional.
AT № 3041
NIPC 517696835
1200-082, Lisbon, Cais do Tojo 24