Switzerland organises retirement provision into three pillars. The first is AHV, the state scheme, funded by contributions split between employer and employee with no meaningful ceiling. The third is voluntary private saving, covered in pillar 3a. The second sits between them and is the one that dominates a Swiss payslip.
How the second pillar works
- It is compulsory for employees earning above an annual entry threshold, and it is arranged by the employer through a pension fund rather than by the individual.
- Contributions are split between employer and employee, with the employer required to pay at least half and in practice frequently paying more.
- Rates rise with age in four bands, from a low percentage in the twenties to a considerably higher one from fifty five onwards.
- The insured salary is coordinated, meaning a fixed coordination deduction is subtracted from gross pay to reflect what AHV already covers. Only the remainder is insured under the second pillar.
The age banding is the feature that surprises people most. Two colleagues on identical salaries doing identical work will see materially different pension deductions purely because of their dates of birth, and the older one takes home less.
The age bands
These are legal minimums. Many funds, particularly in finance, pharmaceuticals and the public sector, contribute well above them, which is a genuine and frequently uncounted part of Swiss compensation. A generous fund can add the equivalent of several percent of salary compared with a minimum compliant one.
The coordination deduction
Only the part of your salary between the coordination deduction and the upper limit is insured under the compulsory regime. Salary below the deduction is regarded as covered by AHV, and salary above the upper limit falls outside the mandatory scheme, though many employers insure it voluntarily in a supplementary plan.
This matters most for part-time workers and for people with multiple employers. A part-time salary can fall entirely or largely below the coordination deduction, leaving very little insured. Reforms have reduced the deduction for part-time work in many funds, but the principle still produces poor outcomes for fragmented careers.
Buy-ins are the largest deduction available
If your accumulated pension capital is below what a full contribution history would have produced, typically because you started late, worked abroad, or received large salary increases, you can make a voluntary purchase into the fund. The amount is stated on your annual pension certificate.
- The purchase is fully deductible from taxable income in the year it is made, with no annual cap other than the available buy-in capacity itself.
- For someone in a high tax commune facing a marginal rate above thirty percent, the immediate tax saving is substantial.
- Capital cannot be withdrawn as a lump sum for three years after a buy-in, which rules out using it as a short term manoeuvre.
- Spreading buy-ins across several years usually beats a single large one, because the deduction is worth more against the top of the rate schedule each time.
For anyone taxed at source rather than by assessment, the deduction requires filing a request for ordinary assessment. Without it the buy-in produces no tax relief at all, which is covered in Quellensteuer.
What happens when you leave Switzerland
Second pillar capital belongs to you and moves with you between Swiss employers automatically. On leaving Switzerland permanently, the treatment splits: the mandatory portion generally cannot be paid out in cash if you move to an EU or EFTA country with compulsory pension insurance, and is transferred to a vested benefits account instead. The extra-mandatory portion can usually be withdrawn.
A withdrawal is taxed at a reduced rate in the canton where the vested benefits account is held, which is why those accounts are frequently opened in low tax cantons. It is one of the few genuinely simple pieces of Swiss tax planning available to a departing employee.