A missing deduction does not tell the whole story
A payslip for a few hundred francs may show no OASI deduction after reference age. The Federal Tax Administration’s Circular 18a says people who continue working can contribute to 3a even if earnings are below the OASI allowance. It cites an allowance of CHF 16,800 a year per employer. This figure relates to social insurance contributions. It is neither the 3a ceiling nor an amount you must earn before you can make a 3a payment.
Compare two ways of receiving CHF 12,000
Suppose someone earns CHF 1,000 a month from actual work for a Swiss employer. The CHF 12,000 annual salary can be below the allowance. A second person receives CHF 12,000 in pension payments and does no paid work. Both amounts look the same in a cash budget, but only the first is a salary in this example. Before calculating a 3a contribution, identify what each payment represents and what rules apply rather than adding all your receipts together.
Check your occupational pension status
The contribution ceiling depends in part on occupational pension affiliation and the relevant earnings. Drawing an occupational pension and remaining actively affiliated are different things. Ask for a statement confirming whether you still contribute. Before making a 3a payment, confirm which earnings figure and ceiling apply to you. The circular sets a limit of five years after reference age and calls for proof of continued work each year.
Keep evidence of work before year-end
Keep your contract, payslips, annual salary certificate and dates worked. If you stop during the year, ask the provider which payment date it can accept and check the tax treatment. If you invoice for small assignments instead of receiving a salary, check your status with the compensation office rather than assuming the work is recognised as self-employment. Keep its answer alongside your evidence of earnings.
Make the decision around upcoming bills
Eligibility does not make a contribution automatically worthwhile. For example, if variable earnings of CHF 1,000 a month help cover routine bills, putting CHF 2,000 of savings into a locked account may leave little margin for a slow month. Compare your cash needs with the amount confirmed as admissible. Work out the possible tax effect separately before committing the money.