Social Security Withholding 2024 Percentage Of. In 2024, the maximum amount of earnings on which you must pay social security tax is $168,600. Up to 85% of your social security benefits are taxable if:

Wealthier taxpayers will have more social security tax taken from their paychecks this year due to a wage base increase. 1.45% for the employee plus 1.45% for the employer.