Switzerland

Cantonal net wealth tax only — Switzerland levies no federal net wealth tax; all 26 cantons levy their own, each with its own scale further multiplied by a cantonal and (for most cantons) a communal coefficient, so no single national statutory rate exists and no source states one as a headline figure. 0.86% is a COMPUTED top marginal all-in rate for Geneva canton/city (commonly cited as the highest-taxing canton), combining five inputs — not a number any single source states directly. Four of the five are confirmed against this cited cantonal document's own 2025 rate tables and its own stated combination formula: base wealth tax top bracket 0.383% (net wealth above CHF 1,775,966), Geneva's supplementary wealth-tax scale (added unmultiplied, top bracket 0.11475% above CHF 3,551,932), and cantonal centimes additionnels (47.5% + 1% home-care levy) — all stated in this document. The fifth input, Geneva city's 2025 communal multiplier (45.49%), is NOT from this cited cantonal document — it is set separately by Ville de Genève's own annual budget resolution, a different source that could not be independently re-fetched and confirmed in this pass (post-deploy accuracy review, 2026-07-18: flagged by reviewer as unconfirmed; disclosed honestly here rather than presented as verified against the cited source). Computation as disclosed: 0.383% × (1 + 0.475 + 0.01 + 0.4549) + 0.11475% ≈ 0.858%, rounded to 0.86% — the 45.49% term specifically carries this weaker provenance. The overall combination methodology (multiply the base tax only, then add the supplementary tax unmultiplied) is independently corroborated by PWC Worldwide Tax Summaries — Switzerland (Individual, Other taxes) (taxsummaries.pwc.com/switzerland/individual/other-taxes), which states the same rule in its own words and confirms the identical base/supplementary scales, though PWC itself states no combined figure and does not corroborate the communal-multiplier figure either. Actual liability varies substantially by canton and commune — from near 0.1% in low-tax central cantons to Geneva's ~0.86% computed here — and this figure is Geneva-specific, not a national rate.