Creates a new individual tax deduction for cash tips that taxpayers report to their employer (capped at $25,000 per year), requires Treasury to publish which occupations qualify, and updates withholding and related tax rules. Also expands an existing employer Social Security tax credit for tip wages to cover certain beauty service businesses (barbering/hair care, nail care, esthetics, and body/spa treatments). Changes apply to tax years beginning after December 31, 2024.