W-4 Withholding Estimator

Calculate the right amount of federal tax withholding for your paycheck

Pair this estimator with FuelWise for smart vehicle cost calculator.

Based on the 2025 W-4 form and IRS tax brackets

Before You Start - Gather This Information

To get accurate results, have these documents ready before filling out the estimator:

Recent Paystub

Shows your current salary and withholding

Last Year's Tax Return

Helps estimate deductions and credits

Spouse's Income Info

If married filing jointly (paystub or W-2)

Other Income Sources

Side jobs, interest, dividends, rental income

Dependent Information

Number and ages of qualifying dependents

Deduction Estimates

Itemized deductions, student loan interest, IRA

💡 Pro Tip: The more accurate your information, the better your W-4 estimate. Don't worry if you don't have everything - you can always come back and recalculate later!

Your Information

Basic Info

Filing status & income

2

Multiple Jobs

Spouse or other jobs

3

Dependents

Children & credits

4

Adjustments

Deductions & withholding

Step 2 of 4 (50% complete)

Calculate withholding to break even at tax time (no refund, no payment due)

$

Children under 17 or other qualifying dependents

$

Interest, dividends, retirement income, etc.

$

Itemized deductions beyond standard deduction

$

Additional amount to withhold each pay period

Important Disclaimer

This calculator provides estimates only and should not be considered tax advice. Your actual tax liability may differ based on various factors. For accurate tax planning, please consult the official IRS W-4 form and instructions or speak with a qualified tax professional.

Understanding W-4 Withholding

The W-4 form tells your employer how much federal income tax to withhold from your paycheck. Getting it right means you won't owe a large amount at tax time or get a large refund (which means you gave the government an interest-free loan).

The 2025 W-4 form uses a 5-step process that's more accurate than the old allowances system. You only need to complete steps that apply to your situation.

When to Update Your W-4

  • Starting a new job
  • Getting married or divorced
  • Having a child or gaining a dependent
  • Taking on a second job or side business
  • Receiving a large tax refund or owing taxes