Why Overtime Resets Each Week on a Bi-Weekly Time Card
October 23, 2026
Per FLSA rules, overtime is calculated based on each individual, fixed workweek (a recurring 168-hour period), not across the full two-week bi-weekly pay period as a combined unit — meaning a bi-weekly time card actually contains two separate overtime calculations, one per workweek, not one combined calculation.
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Open the Bi-Weekly Time Card Calculator →Why This Is the Core Mechanic to Understand
A bi-weekly pay period is a payroll administrative convenience — it determines how often an employee is paid, not how overtime is legally calculated. The underlying workweek, fixed and recurring, is what overtime law actually looks at, and a bi-weekly period simply contains two of them back to back.
What This Means Practically
Each of the two workweeks within a bi-weekly period gets its own 40-hour threshold check — hours over 40 in week 1 trigger overtime for week 1, and hours over 40 in week 2 trigger overtime for week 2, independently of each other. Worked examples of both scenarios are covered in dedicated articles elsewhere in this series.
Frequently Asked Questions
Is overtime calculated across the full two-week bi-weekly period?
No — per FLSA rules, overtime is calculated per individual, fixed workweek, so a bi-weekly period contains two separate overtime calculations.
Why does a bi-weekly pay period not change how overtime works?
Because the pay period is a payroll administrative convenience, while the workweek is the actual unit overtime law is based on.
Does overtime in week 1 affect week 2's calculation?
No — each workweek's 40-hour threshold is checked independently of the other.
Where can I see a worked example of this?
See the dedicated articles on overtime occurring in one week only, and in both weeks, elsewhere in this series.