Social Security Tax Calculator 2025. If your social security income is taxable depends on your income from other sources. The social security tax limit will increase by about 4.4% in 2025.

The calculator provides an estimate of your monthly social security retirement benefit, based on your earnings history and age. Federal tax, state tax, medicare, as well as social security tax allowances, are all taken into account and are kept up to date with 2024/25 rates.