About

CalcSwiss is an independent project with a simple goal: precise, free finance and tax calculators for Switzerland — no advertising, no data collection, no hidden brokerage interests.

Why CalcSwiss exists

Swiss taxes are complicated: 26 cantons, over 2,000 municipalities, each with its own schedules and multipliers. Good calculators exist, but many are either tied to a comparison portal with a brokerage interest or do not disclose how they calculate. We wanted an offering that does both differently: neutral and verifiable.

How we work

• Every figure has an official source. Our tax parameters come from the data of the Federal Tax Administration (FTA), social-insurance values from the federal government. All sources are listed underSources, with their reference date.
• We disclose the methodology. For each calculator we document the formulas, parameters and limits — read them under Methodology.
• We test the calculations. Every tax formula is safeguarded by automated tests against reference values before it goes live.
• We are neutral. No advertising, no cookies, no lead brokerage. We recommend no products and receive no commissions.

What we are not

CalcSwiss is neither a comparison portal, nor a bank, nor a tax-advisory firm. Our calculators provide a well-founded orientation but do not replace individual advice. Binding is always the official assessment by the competent tax authority. For larger decisions — relocation, retirement, capital withdrawal — consulting a professional is worthwhile.

How current is the data?

The calculators work with the tariffs and rates of the current tax year; every calculator page states its data snapshot in the footer. When an authority publishes new values — the multipliers of a new year, adjusted pillar 3a maximum amounts, new withholding tax tariffs — we update the affected data file, and with it every page that computes from it. The sources page lists the datasets in use with their retrieval dates in a table.

Contact and operator

CalcSwiss is operated by Thanakorn Praisee; the full operator details are in thelegal notice. Spotted an error or have feedback? Write tokontakt@calcswiss.ch — we check every report against the official sources and fix confirmed errors with the next update.