SwissExpatTax

Tax guides for expats in Switzerland: Quellensteuer, Pillar 3a, double taxation treaties and tax returns explained.

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Pillar 3a Expat Life Quellensteuer Tax Returns

Latest articles

Pillar 3a · 5 min · 17 Sept 2026

Pillar 3a Beneficiary Order in Switzerland: What Changes on 1 June 2027

From 1 June 2027, people in blended Swiss families can name children as first-priority Pillar 3a beneficiaries — even while married. What changes and why.

Expat Life · 10 min · 11 Mar 2026

Swiss Tax Deadlines 2026

All Swiss tax deadlines for 2026: Quellensteuer correction, NOV filing, ordinary tax return, Pillar 3a contribution deadline and what happens if you miss them.

Expat Life · 12 min · 10 Mar 2026

Double Taxation: Switzerland–Spain Guide

How the Switzerland-Spain double taxation treaty works for salary, pensions, dividends and rental income, and how EU expats avoid paying twice.

Expat Life · 9 min · 10 Mar 2026

Best Swiss Tax Software for Expats 2026: Reviewed

Best tax software for filing Swiss taxes in 2026: official cantonal tools vs Accounto and Taxolution, prices and English support compared.

Expat Life · 10 min · 9 Mar 2026

C Permit vs B Permit: Tax Differences in Switzerland

How taxes change when you go from B permit to C permit in Switzerland: from Quellensteuer to ordinary tax return, what changes, what stays the same.

Expat Life · 11 min · 9 Mar 2026

Moving to Switzerland: Tax Guide

Tax guide for expats moving to Switzerland: when you become tax resident, what you owe in year one, and how to set up your finances correctly.