Obviously, this is primarily a question of interpreting a state statute, and since I don't even know which state is involved, I can't comment. However, like you, I would be troubled by this interpretation. Does the general counsel also believe that the state law would prohibit mandatory after-tax contributions to the plan? Since those contributions also come out of an employee's paycheck, I would wonder if the treatment of the two types of contributions is different.
In the case of picked up contributions, would it matter whether the contributions were picked up pursuant to salary reductions, as opposed to in lieu of salary increases? Does the state otherwise regulate the compensation of these employees, or might there by a way to simply modify pay schedules downward (or avoid pay increases) and then have the employer pay these amounts on a separate, "employer-pay-all," basis without any formal salary reduction basis?
From my point of view, there is really no difference between a salary reduction pick-up in which the salary reduction is mandatory, and a situation in which an employer has a lower pay schedule overall but makes employer contributions. Thus, so long as the reduced salary meets minimum wage requirements, and any other applicable legal requirements, it is hard to see how employees are disadvantaged by using the first method rather than the second. However, I am also aware that state legislatures are not necessarily sophisticated about sophisticated economic concepts.
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