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Guide

Buying back pillar 3a gaps

Published 24 September 2026 · updated 3 October 2026 · Written or reviewed by Christophe Bouin

Until gaps from 2024, a year without a 3a was lost. From 2026 the FSIO allows a retroactive buy-back. It is narrow, conditional, and capped at the small contribution. It is not a way to catch up a whole career.

What the FSIO states

First buy-back: the 2026 tax year, for a 2025 gap. The window is at most ten years back, but only for years from 1 January 2025. The amount is up to the small contribution for 2026, 7'258 CHF (article 7 OPP 3). You pay the ordinary maximum for the current year first, then the gap, in one payment.

You must have had the right to contribute in the gap year — earned income subject to OASI in Switzerland — and still meet that condition in the buy-back year. A self-employed person on the large contribution does not catch up a forgotten large contribution. The buy-back stays pegged to the small one.

The published method targets buy-backs from 2026. From 1 January 2027 the Federal Council sets 7,373 francs with a 2nd pillar and 36,864 francs at most without one. The 20% rate is unchanged. Press release of 2 October 2026: https://www.admin.ch/fr/newnsb/BqB41FVYi5FB. The wider frame is the Swiss third pillar.

Questions

Your questions, answered

The questions people ask before they request a comparison.

Can a forgotten 2023 pillar 3a be bought back?+

No. Only gaps from 2025 are buyable. Earlier years stay lost. The first possible buy-back is the 2026 tax year, for 2025.

Is the buy-back added to the year’s payment?+

In 2026, yes, up to the small contribution (7'258 CHF), and only if the ordinary maximum for the buy-back year is already paid. From 1 January 2027 the Federal Council sets 7,373 francs with a 2nd pillar and 36,864 francs at most without one. The 20% rate is unchanged. Press release of 2 October 2026: https://www.admin.ch/fr/newnsb/BqB41FVYi5FB.

Official sources

Official sources

Editorial review on 6 octobre 2026. Pillar 3a ceilings cited for 2026, from the FSIO table. From 1 January 2027 the Federal Council sets 7,373 francs with a 2nd pillar and 36,864 francs at most without one. The 20% rate is unchanged. Press release of 2 October 2026: https://www.admin.ch/fr/newnsb/BqB41FVYi5FB. Cantonal pillar 3b amounts can change from one tax notice to the next. This is not personal advice.

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