When 1,666 hourly workers at a Tennessee manufacturing site opened their overtime math, a piece of their pay was missing. Their employer had been earning incentive bonuses but leaving those bonuses out of the calculation used to figure overtime, which quietly shrank every overtime check. A federal investigation forced the money back: $1,730,598 in back overtime wages, an average of more than $1,000 per worker.
The bonus that never made it into overtime
The case centered on a specific and common error. The State Group Industrial (USA) Ltd., a contractor, paid its workers nondiscretionary incentive bonuses but did not fold those bonuses into what the law calls the “regular rate of pay” before figuring overtime. Because overtime is calculated as one and a half times the regular rate, leaving bonus money out of that base number produces an overtime rate that is too low. Over weeks and months of overtime hours, the shortfall added up across the workforce. The work took place at a Ford electric-vehicle and battery manufacturing campus in Stanton, Tennessee.
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Why the regular rate has to include the bonus
Under the Fair Labor Standards Act, the regular rate is not simply a worker’s base hourly wage. It generally must include nondiscretionary bonuses, meaning bonuses a worker is promised or expects for meeting production, attendance, or performance targets. Those extra dollars are treated as part of the pay earned for the hours worked, so they have to be blended into the hourly figure before the 1.5-times overtime premium is applied. The U.S. Department of Labor explains how overtime pay and the regular rate work on its overtime guidance page. When an employer skips that step, every overtime hour is underpaid, even if the base wage on the stub looks correct.
The distinction between discretionary and nondiscretionary matters here. A truly discretionary bonus, one the employer decides to give as a surprise with no promise attached, can sit outside the regular-rate calculation. But a bonus tied to hitting a production number, a safety record, or an attendance streak is nondiscretionary because the worker earns it by meeting a known standard, and that kind of bonus has to be counted. In the Tennessee case, the incentive bonuses fell into the category that must be folded in, which is why leaving them out crossed from a bookkeeping choice into a violation of federal law. The underpayment is not always obvious on a single stub, because each week’s shortfall can be small, yet it accumulates across a large workforce logging steady overtime.
What the Wage and Hour Division recovered
The Department of Labor’s Wage and Hour Division, the office that enforces federal wage rules, investigated and recovered the full $1,730,598 for the 1,666 affected workers. The division’s account of the case, including the employer, the location, and the nature of the violation, is set out in its news release on the recovery. Recoveries like this one do not require workers to sue individually; the agency pursues the back wages on their behalf once it finds a violation. That averaged out to more than $1,000 for each worker in the group.
How to spot the same mistake on a pay stub
The error at the heart of this case is one workers can check for themselves. Anyone who earns a regular bonus tied to production, safety, attendance, or performance should look at how their overtime is calculated. The tell is whether overtime pay reflects only the base hourly wage or whether the bonus was blended in first. If a worker earns a base wage plus a recurring bonus and their overtime rate is simply 1.5 times the base wage alone, the bonus may have been left out of the math, exactly the problem the Tennessee investigation uncovered. Discretionary, truly one-off gifts are treated differently, but promised performance-based bonuses generally belong in the regular rate.
Manufacturing and construction sites, where incentive and production bonuses are common and overtime hours are frequent, are exactly where this shortfall tends to show up. The Stanton campus was building electric vehicles and batteries, the kind of large operation with hundreds of hourly workers on extended schedules. A worker who wants to check the math can compare their bonus-inclusive earnings for a week against the rate used for their overtime line, and if the overtime premium was calculated only on base pay while bonuses were paid separately, that is the pattern to question. The point is not that every bonus changes overtime, but that a recurring, earned bonus should move the regular rate up.
Filing a free wage complaint
Workers who believe they have been underpaid can file a complaint with the Wage and Hour Division at no cost, and the process is confidential. The agency can investigate an employer and pursue back wages the same way it did in the Tennessee case. Complaints can be started through the Department of Labor’s how-to-file-a-complaint page or by calling the division’s toll-free line at 1-866-4US-WAGE. A worker does not need to know every legal detail to file; the division determines whether a violation occurred. The Stanton recovery shows what that enforcement can return: more than $1.7 million in overtime wages that had been left out of 1,666 workers’ checks.
This article was produced with AI assistance and reviewed by a human editor. Figures are linked to their primary sources; where a claim could not be verified from the public record, we say so.
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