Social Security income measurement in two surveys.

As a major source of income for retired persons in the United States, Social Security benefits directly influence economic well-being. That fact underscores the importance of measuring Social Security income accurately in household surveys. Using Social Security Administration (SSA) records, we examine Social Security income as reported in two Census Bureau surveys, the Survey of Income and Program Participation (SIPP) and the Current Population Survey (CPS). Although SSA usually deducts Medicare premiums from benefit payments, both the CPS and the SIPP aim to collect and record gross Social Security benefit amounts (before Medicare premium deductions). We find that the Social Security benefit recorded in the CPS closely approximates the gross benefit recorded for CPS respondents in SSA's records, but the Social Security benefit recorded in the SIPP more closely approximates SSA's record of net benefit payments (after deducting Medicare premiums).