Onyx FIN
Your Croatian Partner in Excellence
Accounting Taxes Controlling

What do we do?

We provide a wide range of specialized and complementary services.
Accounting
Let us mind accounting, tax optimization, and technical matters. Focus on your business.
Management 
Planning 
Execution 
Control 
System
Controlling
Expert - Tax Consulting
Keep up to date with legal and professional regulations.
Web Apps & Calculators
Add new dimensions to your business!
And now for something different

We've created a variety of web apps and calculators to make your life easier. Business, of course.

Want something extraordinary? Just for you? Feel free to contact us!
Did you know?

Accountancy changeover

Contrary to popular belief that changing accountant and tax expert during the financial year is problematic, we'll find out together that it's actually not!
Our goal

Building a Relationship of Trust and Confidence

We just enjoy seeing satisfied customers. And we hope you won't spoil yourself.
Who are we?

We cover areas from tax and accounting, controlling, to web apps development.

An unusual mix of knowledge and experience, isn’t it?

Calculators support

Visit our portal and try out our calculators. We'll be expanding the content of the portal over time.

ONYX FIN d.o.o.

Ivana Koblera Square 2, 51000 Rijeka, Croatia , EU

VATID HR39390765019

IBAN HR48 2390 0011 1012 0770 6

Director Miljenko Lucić