https://www.irs.gov/newsroom/one-big-beautiful-bill-act-tax-deductions-for-working-americans-and-seniors
“No Tax on Tips”
New deduction: Effective for 2025 through 2028, employees and self-employed individuals may deduct qualified tips received in occupations that are listed by the IRS as customarily and regularly receiving tips on or before December 31, 2024, and that are reported on a Form W-2, Form 1099, or other specified statement furnished to the individual or reported directly by the individual on Form 4137.
- “Qualified tips” are voluntary cash or charged tips received from customers or through tip sharing.
- Maximum annual deduction is $25,000; for self-employed, deduction may not exceed individual’s net income (without regard to this deduction) from the trade or business in which the tips were earned.
- Deduction phases out for taxpayers with modified adjusted gross income over $150,000 ($300,000 for joint filers).
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Also, more generally, how the IRS defines "cash tips"
https://www.irs.gov/businesses/small-businesses-self-employed/tip-recordkeeping-and-reporting
All cash and non-cash tips an received by an employee are income and are subject to Federal income taxes. All cash tips received by an employee in any calendar month are subject to Social Security and Medicare taxes and must be reported to the employer. If the total tips received by the employee during a single calendar month by a single employer are less than $20, then these tips are not required to be reported and taxes are not required to be withheld. Cash tips include tips received from customers, charged tips (for example, credit and debit card charges) distributed to the employee by the employee's employer and tips received from other employees under any tip-sharing arrangement. Tips also include tips received by both directly and indirectly tipped employees.
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