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Alert

Fraudulent emails

Updated on 17 Apr 2026

Emails are currently circulating which claim to be from the Federal Social Insurance Office, in which the sender asks the recipient to provide their OASI (Swiss social security) number so that the FSIO can proceed with a review of their case file.

Finance & Forecasts

The Finance & Forecasts section shows how social security revenues and expenditures are developing, what scenarios are possible for the coming years, and what methods and models the calculations are based on.

Methodological principles, analyses and actuarial technical bases

The finances for social security is updated regularly. Here you will find the methodological basis for its preparation as well as analyses of its development. The technical basis for the first pillar is updated regularly. You can find it here together with a methodological description.

Finances of the old-age and survivor's insurance (OASI)

The FSIO regularly publishes financial projections for the old-age and survivor's insurance and uses the latest available information for these projections. The financial projections for supplementary benefits are always subject to a degree of uncertainty because they are based on numerous assumptions about future developments.

Finances of the invalidity insurance (IV/AI)

The FSIO regularly publishes financial projections for the invalidity insurance and uses the latest available information for these projections. The financial projections are always subject to a certain degree of uncertainty because they are based on many assumptions about future developments.

Finances of the supplementary benefit (SB) to the old-age, survivor’s and invalidity insurance

The FSIO regularly publishes financial projections for the supplementary benefit to the old-age, survivor’s and invalidity insurance and uses the latest available information for these projections. The financial projections are always subject to a degree of uncertainty because they are based on numerous assumptions about future developments.

Finances of the income compensation system (IC)

The FSIO regularly publishes financial projections for the income compensation system and uses the latest available information for these projections. The financial projections are always subject to a degree of uncertainty because they are based on many assumptions about future developments.