Excess social security and tier 1 RRTA tax withheld
Everyone loses some money each paycheck to Social Security tax (known as RRTA tier 1 tax for railroad employees). But sometimes, when you work multiple jobs particularly, you may end up overpaying. This is where you write in the amount you overpaid, so that you can get it back.
To help improve the meaning of these lyrics, visit "1040" by Internal Revenue Service (Ft. Chris DeMayo, IRS & Liberty Tax) and leave a comment on the lyrics box