Proposed Provision: Beginning in 2016, apply 4 percent payroll tax rate on earnings above the wage-indexed equivalent of $400,000 in 2015, with the threshold wage-indexed after 2016. Provide benefit credit for additional earnings taxed, using a secondary PIA formula. This secondary PIA formula involves: (1) an "AIME+" derived from annual earnings taxed only between 2015 wage-indexed equivalents of $400,000 and $500,000; and (2) a formula factor of 2 percent on this newly computed "AIME+".

OASDI Cost Rates and Income Rates
(as a percentage of taxable payroll)

  Income Rates Cost Rates
Year Present Law Provision Present Law Provision
201412.712.714.014.0
201512.912.914.014.0
201612.913.214.014.0
201712.913.214.014.0
201812.913.314.014.0
201912.913.314.114.1
202013.013.314.314.3
202113.013.314.514.5
202213.013.314.714.7
202313.013.415.015.0
202413.113.415.315.3
202513.113.415.515.5
202613.113.415.815.8
202713.113.416.016.0
202813.113.416.216.2
202913.113.516.416.4
203013.113.516.616.6
203113.213.516.716.7
203213.213.516.916.9
203313.213.517.017.0
203413.213.517.017.0
203513.213.517.117.1
203613.213.517.117.1
203713.213.517.117.1
203813.213.517.117.1
203913.213.517.117.1
204013.213.517.117.1
204113.213.517.017.0
204213.213.517.017.0
204313.213.517.017.0
204413.213.517.017.0
204513.213.516.916.9
204613.213.516.916.9
204713.213.516.916.9
204813.213.516.916.9
204913.213.516.916.9
205013.213.516.916.9
205113.213.516.916.9
205213.213.516.916.9
205313.213.516.916.9
205413.213.517.017.0
205513.213.517.017.0
205613.213.517.117.1
205713.213.517.117.1
205813.213.617.217.2
205913.213.617.217.2
206013.213.617.317.2
206113.213.617.317.3
206213.213.617.417.3
206313.213.617.417.4
206413.213.617.417.4
206513.213.617.517.5
206613.213.617.517.5
206713.313.617.617.6
206813.313.617.617.6
206913.313.617.717.7
207013.313.617.717.7
207113.313.617.817.8
207213.313.617.817.8
207313.313.617.817.8
207413.313.617.917.9
207513.313.617.917.9
207613.313.617.917.9
207713.313.617.917.9
207813.313.617.917.9
207913.313.617.917.9
208013.313.617.917.9
208113.313.617.917.9
208213.313.617.917.9
208313.313.618.018.0
208413.313.618.018.0
208513.313.618.018.0
208613.313.618.118.1
208713.313.618.118.1
208813.313.618.218.2
208913.313.618.218.2
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