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The Moonlighting Penalty: Incidence of the Excess Social Security TaxLafayette College The social security tax is levied on wages and salaries up to a maximum annual amount, with employee and employer each paying the same amount of tax on the employees behalf. Workers earning more than the annual maximum taxable earnings and having more than one employer are vulnerable to excess social security tax withholding. The employees share of excess social security tax can be claimed as a (refundable) credit against the federal individual income tax, but the employers share cannot be claimed. If the employers share of the social security tax is borne by the worker, then the unrefunded excess employers tax is an additional tax on the worker. This additional tax is highly progressive, and its progressivity has increased in the past four decades.
Public Finance Review, Vol. 30, No. 4,
310-319 (2002) |
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