About Us
TaxEngine is developed by Milk Interactive AG, an owner-managed software agency based in Zurich with over 15 years of experience in web and mobile application development.
For income and wealth tax there is the ESTV calculator — but for property gain taxes, withholding tax comparisons, marginal tax rates, marriage penalty or optimisations such as dividend vs. salary, there was no unified, freely accessible tool. TaxEngine fills this gap: over 40 calculators for all 26 cantons and 2,100+ municipalities, free and available as an API.
Our goal: to make tax calculations that were previously only accessible to fiduciaries and tax advisers available to everyone — free, transparent and programmable.
For Developers and Businesses
TaxEngine is more than a website. All calculators are also available via a REST API and as an MCP-Server, ideal for integration into your own applications, accounting software or AI-powered advisory tools.
Contact
Milk Interactive AG
Brauerstrasse 126
8004 Zürich
Switzerland