
Is an 18% Service Charge a Tip? The IRS Four-Factor Test and What It Costs Your Restaurant Payroll
A mandatory service charge fails the IRS four-factor tip test, so it is wages rather than tip income — you owe both FICA shares on it, lose the Section 45B credit on Form 8846, and it is excluded from the new OBBBA qualified-tip deduction. Covers the four-factor test, the journal entries that keep Service Charge Revenue separate from Tips Payable, and the payroll, tip-credit, sales tax, and fee-disclosure changes a restaurant hits the day it switches.










