IRS Section 3101(b)(2)
Authoritative Statutory Source
Additional Medicare Tax (0.9%)
Mandatory 0.9% employee Medicare tax on wages exceeding statutory filing thresholds.
Detailed Definition & Statutory Context
Additional Medicare Tax (0.9%) is governed by IRS Section 3101(b)(2) standards across corporate payroll administration, statutory tax withholding, and general ledger labor accounting. Rigorous compliance with Additional Medicare Tax (0.9%) prevents IRS Form 941 deposit penalties and FLSA wage-and-hour litigation.
Statutory Formula & Equation
Add. Medicare = 0.9% × Max ( 0, Gross Wages - $200,000 Threshold )
General Ledger / Payroll Journal Entry Standard
Debit: Gross Payroll Expense / Employer Tax Expense
Credit: FICA Taxes Payable / Federal Income Tax Payable / Net Pay Cash
Credit: FICA Taxes Payable / Federal Income Tax Payable / Net Pay Cash
Common Operational Pitfalls
- Excluding non-discretionary bonuses from FLSA overtime regular-rate calculations.
- Failing to cap Social Security tax withholding once employee earnings exceed the $168,600 wage base.
- Misclassifying non-exempt hourly employees as exempt salaried workers.