Overtime law seems straightforward on the surface: pay time-and-a-half after 40 hours. But the details — exemptions, state-level rules, salary thresholds, and workweek definitions — trip up even experienced business owners. Getting it wrong isn’t just expensive. It can trigger audits, lawsuits, and back-pay claims that reach years into the past.
This guide covers the federal rules every small business must follow, the state variations that might apply to you, and practical strategies for tracking overtime so you stay compliant without overpaying.
Federal overtime rules under the FLSA
The Fair Labor Standards Act (FLSA) is the foundation of federal overtime law. The core rule: non-exempt employees must be paid at least 1.5 times their regular rate of pay for every hour worked beyond 40 in a workweek. A workweek is defined as any fixed, recurring period of 168 consecutive hours (7 days). Employers choose when the workweek starts, but once set, it can’t be changed to avoid paying overtime.
The key word is “non-exempt.” Most hourly employees are non-exempt, meaning they are entitled to overtime. Salaried employees may be exempt if they meet specific salary and duties tests.
Exempt vs. non-exempt: the salary threshold
To qualify as exempt from overtime, an employee must generally meet three criteria: they must be paid on a salary basis, their salary must meet the minimum threshold set by the Department of Labor, and their job duties must fall into an exempt category (executive, administrative, professional, computer, or outside sales). If any one of these tests fails, the employee is non-exempt and entitled to overtime.
The salary threshold has been updated multiple times in recent years. Always verify the current threshold with the Department of Labor, as proposed increases may have taken effect since this article was published.
State overtime laws: where the rules get stricter
Federal law sets the floor, but many states set a higher standard. California, for example, requires overtime after 8 hours in a single day — not just after 40 in a week. Colorado, Alaska, and Nevada have similar daily overtime provisions. Some states also have higher salary thresholds for the white-collar exemptions.
When federal and state laws conflict, you must follow whichever law is more favorable to the employee. This means a business in California needs to track both daily and weekly hours to calculate overtime correctly.
Common overtime mistakes small businesses make
Misclassifying employees as exempt
Giving someone a salary and a manager title doesn’t automatically make them exempt. If their actual day-to-day duties don’t meet the duties test, they’re entitled to overtime regardless of their title or pay structure.
Averaging hours across two workweeks
An employee who works 50 hours one week and 30 the next is owed 10 hours of overtime for the first week. You cannot average the two weeks to 40 and avoid overtime. Each workweek stands alone under the FLSA.
Not counting all hours worked
Pre-shift prep, post-shift cleanup, mandatory meetings, and training all count as hours worked. If an employee is required to be somewhere and performing duties, that time must be tracked. Failing to count these hours is a common source of overtime violations.
Ignoring state-level daily overtime rules
If you operate in a state with daily overtime provisions, an employee working four 10-hour days owes 8 hours of overtime for the week — even though they only worked 40 total hours. Only tracking weekly totals will miss this entirely.
How to track overtime accurately
Accurate overtime tracking starts with accurate time records. Paper timesheets and manual punch clocks are prone to rounding errors, missed punches, and data entry mistakes. Digital time clock systems that capture exact clock-in and clock-out times eliminate guesswork and create an auditable trail.
The best approach is proactive: use scheduling software that flags potential overtime before shifts are published. When managers can see that assigning one more shift will push an employee past 40 hours, they can redistribute the work before overtime costs materialize. Pair that with automated timesheets that calculate overtime automatically, and you have a system that prevents violations instead of discovering them after the fact.
Penalties for overtime violations
The financial consequences of overtime violations are significant. Under the FLSA, employers can be liable for the unpaid overtime plus an equal amount in liquidated damages — effectively doubling the bill. Add attorney fees, court costs, and potential state-level penalties, and a single lawsuit can cost a small business tens of thousands of dollars.
Willful violations carry even steeper consequences, including civil penalties and possible criminal prosecution. The statute of limitations extends from two years to three years for willful violations, increasing the window of exposure.
Stay compliant with better tools
Overtime compliance doesn’t have to be complicated. The combination of accurate time tracking, proactive scheduling, and automated payroll tracking and preparation covers the vast majority of what small businesses need to stay on the right side of federal and state law. The key is moving from reactive discovery to proactive prevention.