Production patterns for payroll data engineering & compliance automation: Decimal-exact tax & overtime calculations, multi-format ingestion (CSV/EDI 834/REST), and audit-proof compliance reporting.
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Updated
Jul 15, 2026 - CSS
Production patterns for payroll data engineering & compliance automation: Decimal-exact tax & overtime calculations, multi-format ingestion (CSV/EDI 834/REST), and audit-proof compliance reporting.
The deduction covers only the half of time-and-a-half, capped at $12,500 single and $25,000 joint. On $10,000 of overtime pay, roughly $3,333 qualifies, not the whole $10,000.
Zero-dependency time card & timesheet calculation engine: hours, breaks, 7-minute rounding, FLSA & California overtime, gross pay, decimal hours, military time. ESM library + CLI. Powers timecardcentral.com
Five overtime hours a week at $25 an hour is $9,750 a year of overtime pay, of which only $3,250 — the "half" — qualifies for the new deduction.
May a 15-year-old work this shift here? US child labor hours rules (federal FLSA, all 50 states and DC) as cited, dated data, with a schedule checker. Federal and state apply together and the stricter wins. Unknown places answer unknown. Zero dependencies.
$60,000 salaried is $28.85 an hour at 40 hours — but $23.08 at 50 hours, which is where the comparison usually falls apart.
For small businesses with hourly staff and their bookkeepers: rebuild every workweek from a timesheet export, work out each employee's W-2 Box 12 code TT qualified overtime figure, and see who needs a correction, by how much and why. Built with Claude Code.
Work out what you were legally owed, week by week. Free unpaid-wage and overtime calculator for all 50 US states and DC. Runs in your browser; nothing is uploaded.
Time card, overtime and hours math with no dependencies. The engine behind hourtotal.com.
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