Sources & update history
Primary Department of Labor and eCFR sources for the standard federal weekly overtime model.
Primary sources
Gross-pay model: us-federal-hourly-v1. Source text last checked 2026-10-22. Source edition dates below are separate from this verification date.
- DOL Fact Sheet 23 — weekly overtime ↗
Revised October 2019
- DOL Fact Sheet 56A — regular rate ↗
December 2019
- 29 CFR 778.115 — multiple rates ↗
Current through 2026-10-20; no section changes since 2017-01-03
- 29 CFR 778.207(b) — shift differentials ↗
Current through 2026-10-20; latest effective timeline entry 2020-01-15
Paycheck tax sources
The separate paycheck method and source ledger covers IRS 2026 withholding tables, FICA, and the dated February state bracket baseline. The state compilation is a secondary source, not verified current payroll withholding tables.
Update history
22 October 2026 — Model v1. Standard 40-hour federal weekly calculation, weighted rates, hourly differentials, exact fractional arithmetic, documented rounding, and explicitly limited paycheck comparisons.
These sources do not establish coverage for every worker or jurisdiction. The eCFR is a continuously updated, authoritative but unofficial edition. Department of Labor fact sheets provide general information.