Raising the Social Security Tax Cap

According to the most recent Social Security Trustees report, the Social Security Trust Fund will be able to pay full benefits until 2034, and incoming payroll taxes will be sufficient to pay about 78 percent of benefits thereafter. Some are using this modest gap in long-term funding as a pretext to justify proposals for large cuts in Social Security benefits. Others have proposed closing the gap by increasing income received by the Trust Fund. One way to increase revenue is to raise the Social Security tax cap.

Social Security’s Current Cap

Under current law, Social Security contributions and benefits are based on earnings that fall below an annual cap, which is $168,600 in 2024. In the past, the tax cap has been set at a level that covered about 90 percent of all earnings paid in covered employment. Currently, however, only about 83 percent of earnings are subject to the Social Security payroll tax. This erosion in covered earnings largely stems from the fact that wages for the highest paid six percent of workers have been rising faster than wages for the vast majority of people who make less than the cap.

Restoring the Cap to 90 Percent

The extraordinary growth of income for those at the highest end of the wage scale was not anticipated by those who established the formulas that fund Social Security today. Wages for middle and lower income workers have remained stagnant for over a decade, while higher-wage workers have seen significant wage growth during that time. Restoring the tax cap to a level that would again cover 90 percent of earnings would reduce Social Security’s long-term deficit over its 75-year solvency period by nearly 30 percent.

Eliminating the Cap

Some have suggested the tax cap be eliminated immediately.  Others would eliminate the tax cap gradually in various ways.  Still others would set the tax cap so that the Social Security tax would again cover 90 percent of earnings.  To add further complication, some supporters of these approaches would grant no increase in Social Security benefits for additional contributions to the trust funds, while others would grant full or reduced benefits for these additional contributions.

Eliminating the cap without allowing for the possibility of additional benefits for those making the additional contributions would eliminate approximately 90 percent of Social Security’s funding shortfall.  However, this would break the current link between a worker’s contributions and the benefits received upon retirement.  This would be a substantial departure from the contributory nature of the Social Security program and would undermine the broad public support Social Security has enjoyed for over 80 years.

The National Committee supports eliminating the Social Security tax cap either gradually or immediately.  We also believe that the additional wages covered by the Social Security tax stemming from any change should be considered in determining worker’s benefits. That consideration should reflect the progressive nature of benefit computations for Social Security.


Government Relations and Policy, January 2022

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