Social Security Tax Income Limit 2024 Over 65. For 2024, the social security tax limit is $168,600. For calculating taxes on social security, the key combined income thresholds (for 2024) are $25,000 for single filers and over $32,000 for those married and filing jointly.
You are not required to pay any social security tax on income that goes past the wage base limit, which for 2024 is $168,600, up from $160,200 in 2023. But beyond that point, you’ll have $1 in benefits withheld per $2 of earnings.