999999 = N.I.U. (Not in Universe).
999997 = Topcode beginning in 2011 (original value was $999999).
See User Note for an explanation of these codes.
FEDTAXAC indicates the amount of federal tax liability, after tax credits are deducted. The credits include the additional child tax credit and the earned income tax credit. For more information about these credits, see the Internal Revenue Service website. FEDTAX indicates the amount of federal tax liability, before tax credits are deducted. Amounts are reported in dollars.
Amounts for FEDTAXAC are expressed in dollars of the given year, rather than in constant dollars adjusted for inflation. Users can adjust for inflation using Consumer Price Index adjustment factors.
- Persons age 15+.
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