Employer Report History File: U.S. Wage Data by Tax Year

Social Security Administration data containing report-level wage information for employers, organized by Employer Identification Number (EIN) and tax year. It supports the employer side of the Annual Wage Reporting system. The dataset was last updated on 2026-04-03.

Use Cases

• Analyze wage reporting trends and compliance based on tax year and EIN.
• Model employer-level wage distributions based on the Annual Wage Reporting system data.
• Study longitudinal changes in reported wages for specific employers based on the EIN and tax year structure.

Strengths

• Data is sourced from the authoritative Social Security Administration.
• Structured by Employer Identification Number (EIN) and tax year, which suggests a consistent key for analysis.
• Last update timestamp is precisely recorded as 2026-04-03 18:02:49.035395.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

Social Security Administration

Freshness

Last updated 2026-04-03 18:02:49.035395; freshness should be verified.

Geography

United States (inferred from source agency)