It was announced by the Social Security Administration (SSA) in October that the maximum amount of an individual’s taxable earnings in 2022 subject to Social Security tax will be $147,000, up from $142,800 for 2021. The wage base limit applies to earnings subject to the tax, known officially as the old age, survivors, and disability insurance (OASDI) tax. Because the OASDI tax rate is 6.2%, an employee with total wages from an employer at or above the maximum in 2022 will pay $9,114 in tax, with the employer paying an equal amount.
The Medicare hospital insurance tax of 1.45% each for employees and employers has no wage limit and is unchanged for 2022.
Individuals with earned income of more than $200,000 ($250,000 for married couples filing jointly and $125,000 for married taxpayers filing separately) are required to pay an additional hospital insurance tax of 0.9% of wages with respect to employment (also unchanged).
Self-employed individuals pay self-employment tax equal to the combined OASDI and Medicare taxes for both employees and employers, i.e., 15.3%, up to the OASDI wage base and 2.9% in Medicare taxes on net self-employment income above it, with an offsetting above-the-line income tax deduction of half of the OASDI-equivalent component of self-employment tax.
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