Invoicing
For TI / ENI
Companies
For Accountants
Help
Invoicing
For TI / ENI
Companies
For Accountants
Help
Certified invoicing — unlimited and free. Forever.
Create and send invoices to the Tax Authority in seconds — via web, app, or WhatsApp (voice & text).
Create and send invoices to the Tax Authority in seconds — via web, app, or WhatsApp (voice & text).
Create and send invoices to the Tax Authority in seconds — via web, app, or WhatsApp (voice & text).
AT № 3041
Certified by the Tax Authority
15.000+
Satisfied clients
+8.000.000 €
Billed with FIZ (monthly)
4,9 ★
15.000
Average rating on App Store & Google Play
Average rating on App Store & Google Play
AT № 3041
Average rating on App Store & Google Play
4,9 ★
Average rating on App Store & Google Play
8.000.000 €
Average rating on App Store & Google Play
Free forever
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)
Access via web and mobile app (Android & iOS)
Access via web and mobile app (Android & iOS)
Unlimited invoices
Unlimited invoices
Unlimited invoices
Automatic communication with AT (series and invoices)
Automatic communication with AT (series and invoices)
Automatic communication with AT (series and invoices)
Multiple accounts under the same login
Multiple accounts under the same login
Multiple accounts under the same login
Import of clients and items
Import of clients and items
Import of clients and items
Import of previous invoices from the Tax Authority portal
Import of previous invoices from the Tax Authority portal
Import of previous invoices from the Tax Authority portal
Import of clients and items
Import of clients and items
Import of clients and items
Your logo on invoices
Your logo on invoices
Your logo on invoices
Send invoices by email
Send invoices by email
Send invoices by email
Multiple accounts under the same login
Multiple accounts under the same login
Multiple accounts under the same login
Export to SAF-T and excel
Export to SAF-T and excel
Export to SAF-T and excel
Management & Access
Discover advanced features in paid plans.
Invoice issuing via WhatsApp (voice and text)
Invoice issuing via WhatsApp (voice and text)
Invoice issuing via WhatsApp (voice and text)
Scheduled invoices
Scheduled invoices
Scheduled invoices
Automatic VAT rate suggestion on invoices
Automatic VAT rate suggestion on invoices
Automatic VAT rate suggestion on invoices
Digital document archive
Digital document archive
Digital document archive
Multi-user access
Multi-user access
Multi-user access
Three simple plans
VAT Exempt
Subject to VAT
For sole traders under VAT exemption (art.53º/art.9º)
FIZ Base
Invoicing
0
€
FIZ Auto
FIZ Base + Social Security
9
.99
€
FIZ Prime
FIZ Auto + AI Tax Assistant
14
.99
€
Three simple plans
VAT Exempt
Subject to VAT
For sole traders under VAT exemption (art.53º/art.9º)
FIZ Base
Invoicing
0
€
FIZ Auto
FIZ Base + Social Security
9
.99
€
FIZ Prime
FIZ Auto + AI Tax Assistant
14
.99
€
Three simple plans
VAT Exempt
Subject to VAT
For sole traders under VAT exemption (art.53º/art.9º)
FIZ Base
Invoicing
0
€
FIZ Auto
FIZ Base + Social Security
9
.99
€
FIZ Prime
FIZ Auto + AI Tax Assistant
14
.99
€
Rated ★ 4.8
on the App Store and Google Play
15,000+ independent professionals trust FIZ
Katherine P
Easy and practical to use! I love it!
Rui Fernandes
Very intuitive app, simple to use, excellent results — and above all, it’s free! Congrats to the creators.
Renato
Practical and intuitive — issuing an invoice is easier than with the Tax Authority. Support is efficient.
Anthony Sequeira
Very easy to use and a really helpful app. Switching to FIZ was worth it.
Well Cardoso
Excellent! A very complete and free invoicing system. I recommend it!
Rated ★ 4.8
on the App Store and Google Play
15,000+ independent professionals trust FIZ
Katherine P
Easy and practical to use! I love it!
Rui Fernandes
Very intuitive app, simple to use, excellent results — and above all, it’s free! Congrats to the creators.
Renato
Practical and intuitive — issuing an invoice is easier than with the Tax Authority. Support is efficient.
Anthony Sequeira
Very easy to use and a really helpful app. Switching to FIZ was worth it.
Well Cardoso
Excellent! A very complete and free invoicing system. I recommend it!
Rated ★ 4.8
on the App Store and Google Play
15,000+ independent professionals trust FIZ
Katherine P
Easy and practical to use! I love it!
Rui Fernandes
Very intuitive app, simple to use, excellent results — and above all, it’s free! Congrats to the creators.
Renato
Practical and intuitive — issuing an invoice is easier than with the Tax Authority. Support is efficient.
Anthony Sequeira
Very easy to use and a really helpful app. Switching to FIZ was worth it.
Well Cardoso
Excellent! A very complete and free invoicing system. I recommend it!
Frequently Asked Questions
Everything you need to know about FIZ
Everything you need to know about FIZ
Why choose FIZ for your invoicing?
Unlimited and free: use FIZ with no restrictions or hidden costs.
Simplify invoicing: intuitive and efficient invoice creation and management.
Automatic VAT calculation: ensure accuracy and compliance.
Automatic submission to the Tax Authority: no manual work on the AT portal.
Integrated payment links: get paid faster via MBWay, Multibanco, Visa, or Mastercard.
Attractive invoice design: impress clients with a professional look.
Why choose FIZ for your invoicing?
Unlimited and free: use FIZ with no restrictions or hidden costs.
Simplify invoicing: intuitive and efficient invoice creation and management.
Automatic VAT calculation: ensure accuracy and compliance.
Automatic submission to the Tax Authority: no manual work on the AT portal.
Integrated payment links: get paid faster via MBWay, Multibanco, Visa, or Mastercard.
Attractive invoice design: impress clients with a professional look.
Why choose FIZ for your invoicing?
Unlimited and free: use FIZ with no restrictions or hidden costs.
Simplify invoicing: intuitive and efficient invoice creation and management.
Automatic VAT calculation: ensure accuracy and compliance.
Automatic submission to the Tax Authority: no manual work on the AT portal.
Integrated payment links: get paid faster via MBWay, Multibanco, Visa, or Mastercard.
Attractive invoice design: impress clients with a professional look.
Is FIZ really free?
Is FIZ really free?
Is FIZ really free?
Who can use FIZ?
Who can use FIZ?
Who can use FIZ?
Are FIZ invoices certified by AT standards?
Are FIZ invoices certified by AT standards?
Are FIZ invoices certified by AT standards?
Can I customize my invoices?
Can I customize my invoices?
Can I customize my invoices?
What do I need to start using FIZ?
What do I need to start using FIZ?
What do I need to start using FIZ?
Do I need an accountant to use FIZ?
Do I need an accountant to use FIZ?
Do I need an accountant to use FIZ?
AT № 3041
NIPC 517696835
1200-082, Lisbon, Cais do Tojo 24