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Disability income from first source


9999999 = N.I.U. (Not in Universe).

The Census Bureau applies different disclosure avoidance measures across time for individuals with high income in this variable. Detailed explanations of these methods, topcodes, and replacement value and swap value thresholds are available here.


INCDISA1 reports the amount of disability income (payments from sources other than Social Security and VA payments and due to health problems) received by respondents during the previous calendar year, from the source identified in SRCDISA1. For example, if the source of payments identified in SRCDISA1 were "company or union disability" (code 02), then INCDISA1 would report the amount of income received from company or union disability payments during the previous calendar year. For persons who reported receiving disability payments from a second source in SRCDISA2, INCDISA2 similarly reports the amount of disability income received from that second source during the previous calendar year.


If researchers account for the effects of inflation using Consumer Price Index adjustment factors (see INCTOT), INCDISA1 and INCDISA2 are both largely comparable over time. Reported amounts may be more accurate for 1995 and beyond, however, since respondents could report income amounts in terms of weekly, bi-weekly, twice monthly, monthly, or yearly payments beginning in that year; for 1994 and earlier, income information was collected in terms of yearly amounts only.

Researchers interested in the total amount of disability income received, rather than the amount received from specific sources, should use INCDISAB. Because INCDISAB reports the value of disability payments from all sources, the amount reported in that variable may be greater than the sum of INCDISA1 and INCDISA2.


  • Persons age 15+ who reported a first source of disability income.


Years Jan Feb ASEC Apr May Jun Jul Aug Sep Oct Nov Dec
1988 – 2023 - - X - - - - - - - - -



Unharmonized Variables