For 2023, the maximum earnings subject to Social Security tax, also known as the Social Security wage base, is $160,200. This means that an individual with wages equal to or larger than $160,200 would contribute $9,932.40 to the Old-Age, Survivors, and Disability Insurance (OASDI) program in 2023, and their employer would contribute the same amount. The OASDI tax rate for wages paid in 2023 is set by statute at 6.2 percent for employees and employers, each.