Fundamental Payroll Certification Fundamental Payroll Paycheck Calculation Methods 3 — Questions and Answers
Question 1: Under the IRS Percentage Method for 2024, a payroll professional adjusts an employee's wages before applying the withholding tables. What is subtracted first?
- The standard deduction
- Tentative withholding amount
- Adjusted Wage Amount per the Publication 15-T worksheet (Correct answer)
- Total pre-tax deductions only
Correct answer: Adjusted Wage Amount per the Publication 15-T worksheet
Publication 15-T's Percentage Method requires computing an Adjusted Wage Amount by accounting for the employee's W-4 elections before applying bracket rates.
Question 2: An employee receives a $2,000 bonus paid separately from regular wages. Using the flat supplemental rate, how much federal income tax should be withheld?
- $440.00 (Correct answer)
- $220.00
- $500.00
- $340.00
Correct answer: $440.00
The optional flat supplemental withholding rate is 22%; $2,000 × 22% = $440.
Question 3: An employee's W-4 (2020 or later) shows $200 in Step 3 credits. How does this affect withholding calculation using the Percentage Method?
- It increases tentative withholding by $200
- It reduces tentative withholding by $200 (Correct answer)
- It reduces annual taxable wages by $200
- It has no effect until year-end
Correct answer: It reduces tentative withholding by $200
Step 3 credits on the 2020+ W-4 reduce the tentative withholding amount calculated from the bracket tables, not the taxable wage base.
Question 4: A commissioned salesperson earns $800 salary plus $1,500 commission paid on the same check. If the employer uses the aggregate method for supplemental wages, the withholding is computed on:
- $1,500 only at 22%
- $800 only using normal withholding
- $2,300 combined as if it were their regular wages (Correct answer)
- $800 at regular rate, $1,500 at 37%
Correct answer: $2,300 combined as if it were their regular wages
The aggregate method combines regular and supplemental wages into one amount and applies normal withholding tables as if it were a single regular paycheck.
Question 5: Which IRS publication is the primary reference for federal income tax withholding tables and methods?
- Publication 15 (Circular E)
- Publication 15-T (Correct answer)
- Publication 15-A
- Publication 505
Correct answer: Publication 15-T
Publication 15-T, 'Federal Income Tax Withholding Methods,' contains the official wage bracket and percentage method tables used for withholding calculations.
Question 6: An employee who did not provide a Form W-4 started work in 2024. What withholding status must the employer use?
- Single with zero allowances
- Married filing jointly with standard deduction
- Single or Married filing separately at the default rate per Publication 15-T (Correct answer)
- No withholding until W-4 is submitted
Correct answer: Single or Married filing separately at the default rate per Publication 15-T
Per IRS rules, employers must withhold at the default rate for employees without a W-4, which since 2020 is treated as Single with no other adjustments per Publication 15-T.
Question 7: Supplemental wages paid to an employee exceed $1 million in a calendar year. What withholding rate applies to amounts over $1 million?
- 22%
- 35%
- 37% (Correct answer)
- 39.6%
Correct answer: 37%
Supplemental wages exceeding $1 million in a year must be withheld at the mandatory 37% rate, the highest federal income tax bracket.
Fundamental Payroll Certification Fundamental Payroll Paycheck Calculation Methods 3
Under the IRS Percentage Method for 2024, a payroll professional adjusts an employee's wages before applying the withholding tables.
What is subtracted first?