California Overtime Rules: What Employers Must Pay Under Labor Code Section 510

California overtime is not a new 2026 law package

Headlines about "new" California overtime rules often confuse employers. The core daily and weekly overtime framework has been in place for years under Labor Code Section 510. What changes in practice is enforcement, court decisions, and how you calculate the regular rate of pay, not a wholesale replacement of the statute.

This article summarizes the rules non-exempt employers must follow today and common compliance mistakes. It is general information, not legal advice for your specific workforce.

What Labor Code Section 510 requires

For most non-exempt employees, California requires overtime premium pay beyond federal Fair Labor Standards Act (FLSA) rules because both daily and weekly hours can trigger overtime.

Under Section 510, overtime compensation is generally owed at one and one-half times the regular rate for:

• Work in excess of eight hours in one workday (up through 12 hours in that workday, as described below);
• Work in excess of 40 hours in one workweek; and
• The first eight hours worked on the seventh consecutive day of work in one workweek.

Double time is generally owed at twice the regular rate for:

• Work in excess of 12 hours in one workday; and
• Work in excess of eight hours on the seventh consecutive day in one workweek.

The California Labor Commissioner (DLSE) describes the day structure this way: time and one-half applies for hours worked over eight up to and including 12 in a workday, and double time applies beyond 12 in a workday or beyond eight on that seventh consecutive day. See the DLSE overtime FAQ.

Section 510 also states that employers are not required to stack multiple overtime rates on the same hour when more than one rule could apply. Payroll still has to apply the correct premium for each hour worked.

Workday, workweek, and the seventh consecutive day

Overtime is measured against a defined workday and workweek. Employers must apply consistent definitions; shifting boundaries to avoid overtime is not permitted.

The "seventh consecutive day" rule applies to the seventh day of work in a single workweek, not simply "any Sunday." Scheduling and timekeeping must track consecutive days actually worked.

Alternative workweek schedules (Section 511)

Some employers use an alternative workweek schedule (for example, four 10-hour days) adopted under Labor Code Section 511. When a valid schedule is in place, daily overtime rules work differently for covered employees. Adoption requires a written agreement, secret-ballot election, and reporting to DLSE. Do not assume a four-day schedule is lawful without completing that process.

Industrial Welfare Commission wage orders still matter

California overtime and wage rules also depend on the Industrial Welfare Commission (IWC) wage order that covers your industry (for example, Orders 1 through 17). The IWC is defunct, but its wage orders remain in effect and are enforced by DLSE.

Orders can include industry-specific exceptions, meal and rest period rules, and alternative schedule provisions. Your order determines which overtime exceptions or exemptions may apply to a job classification.

Regular rate of pay: where many payroll errors start

Overtime is calculated on the regular rate of pay, not always the base hourly rate. DLSE includes in the regular rate many forms of compensation, such as non-discretionary bonuses, commissions, and shift differentials, subject to specific rules.

Employees cannot waive overtime. Labor Code Section 1194 makes overtime agreements unenforceable if they pay less than required.

Unauthorized overtime must still be paid if the employer knew or should have known the work was performed. Employers may discipline policy violations, but they cannot withhold earned wages.

Worker classification and overtime (AB 5 is not an overtime statute)

Labor Code Section 2750.3 (AB 5) governs whether a worker is an employee or independent contractor under the ABC test, with numerous statutory exceptions. It is not a new overtime law.

When a worker is misclassified as a contractor but is actually an employee, unpaid overtime and other wage violations can follow. Classification audits belong in the same compliance conversation as timekeeping, but the overtime rules themselves come from Section 510 and the applicable wage order.

Practical compliance steps

• Confirm exempt vs. non-exempt status using California and federal duties tests, not job titles alone.
• Track all hours worked by workday and workweek, including remote and pre/post-shift tasks when they are compensable.
• Calculate overtime on the regular rate, including non-discretionary bonuses and other includable pay.
• Document alternative workweek adoption if you use one; do not treat compressed schedules as self-implementing.
• Train managers that off-the-clock work and "waived" overtime create liability even when schedules look clean on paper.

Exposure when overtime is unpaid

Employees may file wage claims with DLSE or sue in court for unpaid overtime. Remedies can include back wages, interest, and penalties depending on the claim.

For example, Labor Code Section 203 provides waiting time penalties when final wages, including overtime, are not paid timely after separation. Willful wage violations can also lead to civil penalties and representative claims under the Private Attorneys General Act (PAGA) in addition to individual recovery.

Federal Department of Labor statistics are not the right benchmark for California-only overtime risk; California enforcement runs through DLSE, the courts, and PAGA.

Bottom line

California overtime is demanding because it is daily, weekly, and seventh-day driven, and because the regular rate calculation pulls in more than base pay. Treating overtime as "just like federal 40-hour law" is a common and expensive mistake.

If you want help auditing classifications, timekeeping, and payroll calculations, contact Easeworks to discuss HR outsourcing and compliance support for California employers.