Here's the setup. A restaurant has servers "tip out" a percentage of sales to bartenders, hosts, and bussers. One employee—titled "shift supervisor"—periodically works bartending shifts. While bartending, he also sets schedules, decides when shifts end, and handles other management functions. He collects a tip out from the servers. He also grabs a slice of the tips meant for hosts and bussers when he pitches in to help them.
Can he keep any of it? The answer is a clear, "No."
If this employee's duties satisfy the executive exemption test—primary duty of management, customarily directs two or more full-time employees, and has real hiring/firing/promotion authority—he's a "manager or supervisor" under the Fair Labor Standards Act. Full stop.
It doesn't matter that he also tends bar. It doesn't matter that he's helping out servers who are shorthanded. Once you meet the duties test, you're locked out of other people's tips, period.
Title doesn't control this. Duties do. A sometimes-bartender with no manager title who schedules staff, orders inventory, and helps hire people is still a manager for tip purposes, and still can't touch the tip jar.
There is one important exception. A manager can keep tips a customer hands her directly, for service she personally and solely provided. If she tends bar and a customer drops a five in her personal jar or in her hand, she can keep it. But the second the tip get pooled and split with the other bartenders and workers on shift, she is out—because now it's impossible to say the tip was for her alone.
1. Stop looking at the title. Look at the duties. "Shift supervisor," "lead," "keyholder"—none of that matters to WHD. What matters is whether the person is directing staff, setting schedules, and carrying real hiring and firing weight. If yes, they're out of the tip pool no matter what the badge says.
2. Segregate any tips a manager legitimately earns solo. If a manager works a shift doing hands-on service work, make sure any tips attributable only to that manager stay separate from the pooled tips. Mixed in with everyone else's, they're contaminated—and now the manager can't keep any of it.
3. Know what it costs you if you get this wrong. This isn't just a "give the money back" violation. Improperly letting a manager keep tips also blows the tip credit for every tipped employee affected. That turns a tip-pool mistake into a minimum-wage violation, with all the back-pay exposure that comes with it.
The math is simple: manage, and you don't get tips. Pick one.