We believe everyone deserves to understand their taxes — whether you've lived in Sweden your whole life or just arrived yesterday.
The Swedish tax system is powerful but complex. It funds world-class healthcare, education, and social services — but understanding your own tax situation shouldn't require a finance degree.
"Our mission is to demystify Swedish taxes and empower every resident to take control of their financial future with confidence."
See exactly how your tax is calculated, step by step
Available in English and Swedish, designed for everyone
Know your situation before Skatteverket tells you
Moonii started with a simple question: "Why is it so hard to know if I'll owe tax or get money back?"
As immigrants in Sweden, we experienced firsthand how confusing the tax system can be. The letters from Skatteverket were in Swedish (obviously), the rules about different income sources were unclear, and the concept of "kvarskatt" hit us hard — twice.
We learned about the 30% trap the hard way. We discovered deductions we'd missed for years. And we realized that millions of people in Sweden — both locals and newcomers — face the same confusion.
So we built Moonii. Not as a replacement for Skatteverket or professional tax advisors, but as a companion that helps you understand your situation in plain language, year-round.
Tax letters arrive in Swedish with complex terminology
Clear explanations in English and Swedish
You only learn your tax situation once a year
Real-time tracking throughout the year
Multiple incomes create hidden tax gaps
Calculate your true rate across all sources
Deductions are complicated and easy to miss
Guided discovery of deductions you qualify for
Kvarskatt surprises catch people off guard
Early warnings before problems become expensive
We show you exactly how we calculate your tax. No black boxes, no mystery formulas. If we're wrong, you'll know why.
Whether you're a Swedish native, an expat, or somewhere in between — Moonii works for you. Complex situations, simple interface.
Your financial data is yours. We don't sell it, share it, or store more than necessary. The calculator works without even creating an account.
We're not tax advisors and we don't pretend to be. Moonii gives estimates and education — for official matters, we point you to Skatteverket.
Swedish taxes are complicated enough. Our job is to make them simple to understand, not to add more confusion.
Available in multiple languages. Works on any device. Free to use for core features. Everyone deserves financial clarity.
Join thousands of people in Sweden who stopped guessing and started knowing.