Taxmora
Tax estimates for cross-border developers.
Five countries. One engine. €29/year while it's in this state, €99 when it's finished.
Five countries, legal-cited rates
Every rate and threshold in our calculators traces back to the law that defines it - §32a EStG for Germany, the Belastingdienst tariff for the Netherlands, IRS code for Portugal, IRPF for Spain, and HMRC rules for the UK. 2025 and 2026 tax years.
Germany
Cubic-spline tariff, §32a EStG
Netherlands
Box 1 rates and the 30% ruling
Portugal
IRS brackets and IFICI status
Spain
State + regional IRPF, Beckham regime
UK
HMRC rules, Statutory Residence Test
What it does
Tax calculator
Income tax for 5 countries, 2025/2026, with legal citations on every threshold.
Residency check
Decision-tree assessment incl. the UK Statutory Residence Test. See where you'd count as resident.
22 tax strategies
From the NL 30% ruling to Portugal's IFICI to Spain's Beckham regime - with eligibility rules in code, not vibes.
Ask the docs
RAG-powered Q&A over the actual tax law sources. Answers cite their sources.
What's not done yet
- The UK residence test covers 8 of 17 outcomes.
- The Spanish foral regimes (Basque Country, Navarra) are partially implemented.
- The Dutch Box 3 model predates the 2023 Supreme Court ruling.
- The deterministic parts of the app are bilingual, but AI-generated strategy notes may still come back in Chinese.
That's why it's €29 and not €99. When those three are done, the price goes up. If you sign up now, you keep €29 for as long as the product exists.
We'd rather tell you now than surprise you later.
Not ready to pay for a half-finished tax engine? Fair.
Leave your email and I'll tell you when the Box 3 fix, the UK residence test, and the Spanish foral regimes are done - and the price is about to go from €29 to €99.
One email at launch. Nothing else. No newsletter, no drip campaign.
Taxmora - built by one developer who filed cross-border taxes wrong for two years and got annoyed enough to write 977 tests about it.