Swiss tax return deductions: a practical checklist
Published 2026-10-19 · Updated 2026-10-19 · 3 min read · 3 sources · Verified Swiss federal benchmarks
Direct answer
Pillar 3a contributions up to CHF 7,258 (with a pension fund) or up to 20% of net income capped at CHF 36,288 (without) reduce taxable income if paid in the tax year. Social security on your payslip (AHV/IV/EO 5.30%, ALV 1.10% on wages up to CHF 148,200) is not a separate deduction but shapes your net income for limits like 3a without a pension fund.
Key facts
- Pillar 3a max CHF 7,258 with pension fund; without, 20% of net income max CHF 36,288.
- Retroactive 3a top-ups for gaps from 2025 may be possible from 2026 after the current year is paid in full.
- Employee AHV/IV/EO is 5.30% each for employee and employer; no salary cap on this share.
- ALV employee share is 1.10% on annual salary up to CHF 148,200.
- Ordinary assessment (NOV) is mandatory from CHF 120,000 gross; voluntary application by 31 March is irrevocable.
Deductions almost every employee should check
Pillar 3a is the most common voluntary deduction. With a pension fund the 2026 ceiling is CHF 7,258; without one you may pay up to 20% of net employment income, capped at CHF 36,288. Payment must fall in the calendar year you declare.
Commuting, health premiums above cantonal thresholds, childcare, and alimony can reduce taxable income where rules allow. Professional expenses may be actual costs or a cantonal lump sum. Keep tickets, premium statements, and invoices.
Worked example: salary and 3a with a pension fund
Gross salary CHF 95,000: employee social deductions are roughly CHF 6,662 (5.30% AHV/IV/EO on full salary plus 1.10% ALV, below the CHF 148,200 ALV cap). Taxable income before 3a still depends on canton, status, and children.
You pay CHF 7,258 into Pillar 3a in December 2026. That amount is deducted if the bank confirms payment in the tax year. At a 25% marginal rate the saving is about CHF 1,815; 3a always saves at the margin, not your average rate.
- 1Collect all salary certificates (Lohnausweis) and pension fund statements.
- 2Confirm 3a payment date and amount; request a bank confirmation for the return.
- 3List commuting days and costs; note distance if you use a private car.
- 4Add health premium statements and invoices above the cantonal deductible.
- 5Check whether NOV applies (mandatory from CHF 120,000 gross).
Second example: no pension fund and the 20% rule
Without BVG, net employment income CHF 60,000 allows up to CHF 12,000 into 3a (20% of net, under the CHF 36,288 cap). At net CHF 200,000 the cap is CHF 36,288. From 2026, retroactive gap payments from 2025 may be possible after the current year maximum is paid in full.
Common mistakes on deductions
Paying 3a in January for the prior year. Listing employer BVG as your cash expense. Claiming full health premiums when the canton allows only partial deductions. Ignoring mandatory NOV from CHF 120,000 gross. Mixing Quellensteuer with ordinary deductions without checking permit rules.
What not to double-count
Employer BVG is not an employee deduction on the return. Consumer loan interest may be deductible; mortgage interest follows property rules. Quellensteuer and NOV from CHF 120,000 gross are separate regimes; voluntary NOV by 31 March is irrevocable. Keep receipts for at least ten years.
FAQ
- Is Pillar 3a always CHF 7,258?
- Only if you are affiliated with a pension fund (Pillar 2). Without one, the limit is 20% of net income, maximum CHF 36,288 for 2026.
- Can I deduct my entire health insurance bill?
- Usually not in full. Cantons allow a deduction for premiums and sometimes excess medical costs above a floor. The rules differ by canton.
- Do I deduct AHV from my salary on the tax return?
- Social contributions are already reflected in your net income on the salary certificate. You do not list 5.30% AHV/IV/EO again as a separate line item.
- When must I leave ordinary assessment if I earn less?
- Voluntary entry into ordinary assessment (NOV) by 31 March is irrevocable for that choice. Mandatory NOV applies from CHF 120,000 gross.
Neue Schweizer Grenzwerte und Research-Reports per E-Mail erhalten.
Wir schreiben nur, wenn neue Bundesdaten, kantonale Steuertarife oder Top 100 KI-Rankings vorliegen. Jede Zahl ist mit der offiziellen Quelle belegt.
Keep reading
- Marginal vs average tax rate in SwitzerlandYour marginal rate is the tax on the last franc of income; your average rate is total tax divided by total income, always lower on progressive scales. Switzerland has no single national income tax percentage: federal tax (DBG Art. 36 ff.), cantonal tax, and municipal multipliers stack, so marginal rates rise in brackets rather than as one flat number.
- Dividends vs salary for a GmbH owner in SwitzerlandA GmbH needs minimum share capital CHF 20,000; paying yourself a salary makes you an employee for AHV/IV/EO (5.30% employee plus 5.30% employer, no cap) and ALV (1.10% each side up to CHF 148,200), and it builds BVG above CHF 22,680 entry salary. Dividends are not AHV-liable and are not salary for BVG, but they count as taxable income from movable capital; part of GmbH profit distributions may be treated as a return of capital rather than income depending on equity and prior taxation, so the split is qualitative and needs accounting advice.
- The historic first 13th AHV pension payout: December 2026 financial analysisIn December 2026, approximately 2.6 million Swiss retirement pension recipients will receive the historic first payout of the 13th monthly AHV (OASI) pension following the March 2024 constitutional vote. For individuals with a complete 44-year contribution record, the additional December bonus ranges from CHF 1,260 (minimum pension) to CHF 2,520 (maximum single pension), with married couples capped at CHF 3,780. Crucially, federal legislation ensures the 13th payment is excluded from supplementary benefits (Ergänzungsleistungen) calculations so lower-income retirees retain full benefits.
- Guide: Swiss gross-to-net salary in 2026: AHV, ALV, BVG and taxes explainedIn Switzerland, mandatory employee social security and pension deductions reduce gross salary by roughly 10% to 16% before income tax: 5.30% for AHV/IV/EO, 1.10% for ALV (up to CHF 148,200), ~1.3% for NBU/KTG, and 3.5% to 9.0% of coordinated salary for the 2nd-pillar pension (BVG/LPP).
- Guide: Pillar 3a maximum for 2026: CHF 7,258 or 20% of incomeIn 2026 you can pay up to CHF 7,258 into Pillar 3a if you have a pension fund. Without one, the limit is 20% of net earned income, up to CHF 36,288.