Social Security automatically calculated and filed.
Review once — we file error-free, expert-verified, with up to 1.500€ tax protection guaranteed per declaration. |
Built for self-employed professionals (Sole Traders & Independent Entrepreneurs) providing services in Portugal.

№ 3041
Certified by the Portuguese Tax Authority
15.000+
satisfied self-employed professionals
Benefits of automatic Social Security calculation & filing with FIZ
Automatically calculates your contribution base
Lets you adjust your base (-25% / +25%)
Submits directly to Social Security
Files your declaration in just 1 click
Sends smart reminders before every deadline
Tax Guarantee — up to 1.500€ covered per declaration
Sends smart reminders before every deadline

Never miss
a deadline
FIZ tracks every tax deadline, sends smart reminders, and notifies you about what matters. No surprises, no fines, no stress.
Plans
FIZ Base
Faturação + Segurança Social
0
€
FIZ Auto
Faturação + Segurança Social
9
.99
€
FIZ Prime
Faturação + Segurança Social
14
.99
€

Tax Shield
Accuracy guaranteed with real money
Our automatic tax engine is built for total accuracy — and we back it with a real monetary guarantee. Every declaration is protected with up to 1.500€, depending on your plan. Full confidence. Zero worries.


