Definition
The Multiple Jobs Worksheet is a calculation worksheet included in the IRS W-4 form instructions. It helps employees with two or more jobs — or married couples where both spouses work — calculate the additional withholding needed to avoid an April tax bill.
The problem it solves: each employer withholds taxes as if your job with them is your only job, applying the full standard deduction and lower bracket rates to your entire paycheck. But your combined income may push you into higher brackets. The Multiple Jobs Worksheet calculates a more accurate withholding that accounts for your total combined income.
Alternatively, you can use the IRS Tax Withholding Estimator online — it accomplishes the same thing with less manual calculation. The simplest option, when there are only two jobs in total, is to check the Step 2(c) checkbox on the W-4 for both jobs. Complete the worksheet itself on only one W-4, most accurately on the highest-paying job's.
How this affects your W-4
Checking the Step 2 box on your W-4 is a shorthand for the Multiple Jobs Worksheet — it tells your employer to use withholding tables that split the standard deduction and the bracket widths between the two jobs, which approximates the correct combined withholding.
For more precision, especially if incomes are very unequal, use the full Multiple Jobs Worksheet and enter the result in Step 4c.
See how multiple jobs worksheet affects your withholding
Use the free W-4 calculator to calculate your exact withholding with your specific situation.
Open the W-4 Calculator →Read the guide
W-4 Step 2 Explained: Multiple Jobs Checkbox vs Worksheet (2026)
Step 2 is the most commonly skipped section — and the most expensive to ignore. Here's what it does and which method to use.
How to Fill Out a W-4 With Two Jobs (2026 Guide)
Two jobs means two withholding calculations — and a likely tax bill in April if you ignore Step 2. Here's exactly how to fill it out and avoid the shortfall.
Related terms
W-4 Form
The IRS form employees submit to their employer to control how much federal tax is withheld.
Step 4c — Extra Withholding
A line on the W-4 where you specify a flat dollar amount to withhold from every paycheck in addition to the calculated amount.
Filing Status
Your tax category based on marital and household situation — determines your tax brackets and standard deduction.