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Adding Employer Contributions to Health Insurance to Social Security's Earnings and Tax Base


  • Karen E. Smith
  • Eric Toder


The inclusion of employer-sponsored health insurance (ESI) in taxable income would increase income and payroll tax receipts, but would also increase Old Age, Survivors, and Disability Insurance (OASDI) benefits by adding ESI to the OASDI earnings base. This study uses the Urban Institute’s DYNASIM model to estimate the effects of including ESI premiums in taxable earnings on the level and distribution by age and income groups of income tax burdens, payroll tax burdens, and OASDI benefits. We find that the increased present value of OASDI benefits from including ESI in the wage base in 2014 offsets about 22 percent of increased income and payroll taxes, 57 percent of increased payroll taxes, and 72 percent of increased OASDI taxes. The overall distributions of taxes and benefits by income group follow the same pattern, with both taxes and benefits increasing as a share of income between the bottom and middle quintiles and then declining as a share of income for higher income taxpayers. But households in the bottom income quintiles receive a net benefit from including ESI in the tax base because their increase in OASDI benefits exceeds their increase in income and payroll taxes. Over a lifetime perspective, all earnings groups experience net tax increases, but workers in the middle of the earnings distribution experience the largest net tax increases as a share of lifetime earnings. Higher benefits offset a larger share of tax increases for lower than for higher income groups.

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  • Karen E. Smith & Eric Toder, 2014. "Adding Employer Contributions to Health Insurance to Social Security's Earnings and Tax Base," Working Papers, Center for Retirement Research at Boston College wp2014-3, Center for Retirement Research.
  • Handle: RePEc:crr:crrwps:wp2014-3

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    1. Aizer, Anna & Currie, Janet, 2004. "Networks or neighborhoods? Correlations in the use of publicly-funded maternity care in California," Journal of Public Economics, Elsevier, vol. 88(12), pages 2573-2585, December.
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