Labor advocates say President Trump’s big promise to end tax on tips has morphed into a more complicated policy reality, and lower-income workers may be left out.

Midrange earners stand to see meaningful savings, too. A warehouse supervisor earning $60,000 with $10,000 in overtime could shave a couple thousand dollars off their federal tax bill. A hotel bartender making $45,000 plus $5,000 in tips could get back all the federal taxes withheld from their tips.