Five configuration corners that distort Japanese overtime pay

Overtime is where payroll management applications and written company rules most often drift apart. During application audits we return to the same five corners.

Rounding on the attendance feed

If attendance rounds to the nearest fifteen minutes but the payroll application truncates, employees lose minutes every day. The reverse creates overpayment. Confirm which system “owns” rounding before you sample.

Night premium windows

Statutory night work and company-specific premiums sometimes share a flag. When the application collapses both into one rate table, night hours on holidays can be under- or over-counted.

Calendar exceptions

Company calendars that omit plant-specific holidays will look fine at HQ and wrong at the factory. Multi-site audits should pull calendars per pay group, not a single corporate default.

Cap and floor interactions

Monthly overtime caps interacting with daily premiums produce edge cases at month boundaries. Sample employees who regularly sit near the cap.

Manual overrides that never expire

Temporary rate overrides left active after a project ends are a frequent finding. Ask for a list of active overrides before fieldwork; do not wait to discover them in samples.

If you are preparing for a Center Wise review, export these five areas early. It shortens interviews and steadies the draft findings workshop.