Switzerland · Pension & social insurance
Switzerland pension contributions: AHV gaps and separate pension buy-ins
Swiss pension decisions involve separate systems. An AHV contribution gap, a pension-fund buy-in and a pillar 3a catch-up payment have different conditions. Start with the individual account and compensation office. Do not use eligibility under one pillar as permission to pay into another, or assume that all payments create the same pension rights.
Sources checked 4 October 2026 · English guide
Systems covered: AHV/IV/EO, occupational pensions and restricted pillar 3a savings.
Identify the contribution basis and the person paying
The Federal Social Insurance Office distinguishes employee, self-employed and non-employed contribution obligations. Employees and employers share specified social-insurance contributions; self-employed people pay their assessed contributions themselves. A person without employment can still owe AHV/IV/EO contributions, calculated under different rules. Occupational pension, accident insurance and health-insurance costs need separate treatment. Ask the compensation office how your work, residence and family situation affect the assessment. Assemble personal payroll deductions and direct invoices, keeping employer funding separate. A missing salary deduction does not prove that no contribution is due.
Federal Social Insurance Office — Overview of social security contributionsInspect the individual account and investigate gaps promptly
Request the official individual-account statement and compare recorded earnings and periods with payslips and work history. The AHV information centre explains that contribution gaps can lower the pension and that permitted arrears payments have a limited look-back. Its guidance also describes circumstances where early contribution years may offset later gaps. Have the compensation office decide which rule applies to your record and whether a contribution was actually due. Obtain a payment instruction and corrected statement; do not interpret a missing entry as an unrestricted opportunity to buy any past year.
AHV/IV information centre — Individual-account statement · AHV/IV information centre — What to do about contribution gapsCheck voluntary AHV eligibility before moving abroad
The Central Compensation Office offers voluntary AHV/IV under conditions to Swiss, EU or EFTA nationals living outside the EU and EFTA after leaving compulsory insurance. Prior continuous insurance and a timely application are required. Membership is individual: an application for one adult does not automatically cover a spouse or child. Ask the office to confirm eligibility, the start date and the assessed premium for each applicant. This route should be checked before departure or promptly afterwards; a private pension account does not replace the application or extend its deadline.
Central Compensation Office — Joining voluntary AHV/IVKeep pension tax categories and catch-up rules distinct
For occupational pension buy-ins, obtain the fund's permitted amount and ask the relevant tax authority about deductibility and planned withdrawals. Pillar 3a is a separate restricted savings arrangement. The official guidance states that its new catch-up mechanism first applies in tax year 2026 to eligible gaps from 2025; older gaps are not brought into that mechanism. Conditions include paying the required ordinary contribution for the catch-up year. Obtain confirmation of all eligibility conditions and the tax deduction before paying. Tax relief reduces current cost but does not make the eventual benefit tax-free.
Federal Social Insurance Office — Contributions to the third pillar · Federal Social Insurance Office — Earliest eligible pillar 3a catch-up years · Federal Social Insurance Office — Preparing for retirement and taxationWhich step should you take next?
- If an AHV period is missing, ask the compensation office whether it is a reporting error, eligible arrears or a period addressed by another rule.
- If leaving Switzerland, confirm each family member's voluntary insurance eligibility and application deadline separately.
- If making a pension-fund or pillar 3a payment, obtain the scheme-specific limit and tax confirmation before comparing its cost.
Compare your contribution costs →
What the cost calculator needs
Use the compensation office's contribution assessment, pension-fund buy-in quote or pillar 3a provider confirmation for the personal payment. Obtain the tax difference from the competent cantonal tax authority or its official calculation. Record employer funding from payroll or the occupational pension certificate separately. An AHV gap and a pillar 3a gap are never interchangeable inputs.
It adds confirmed payment amounts and separates cash tax savings from funding paid by others. It does not calculate statutory liability from salary, buy contribution years, choose an insurance product or predict pension entitlement.
Official sources and review date
Sources checked . Review due before . Rules and individual assessments can change sooner.
- Federal Social Insurance Office — Overview of social security contributions
- AHV/IV information centre — Individual-account statement
- AHV/IV information centre — What to do about contribution gaps
- Central Compensation Office — Joining voluntary AHV/IV
- Federal Social Insurance Office — Contributions to the third pillar
- Federal Social Insurance Office — Earliest eligible pillar 3a catch-up years
- Federal Social Insurance Office — Preparing for retirement and taxation