Enter your wages and details to estimate withholding and see if you owe or get a refund.
How the 2026 W-4 Works
On the 2026 Form W-4 most people only need Step 1 (filing status) and Step 5 (signature). Steps 2 to 4 fine-tune withholding: $2,200 per child under 17 goes in Step 3, extra deductions in Step 4(b), and extra tax per paycheck in Step 4(c). Enter your pay and credits above to see whether you are headed for a refund or a bill.
The redesigned Form W-4 (used since 2020) replaced allowances with dollar amounts. It has five steps, only Step 1 and Step 5 are required for everyone. Steps 2-4 fine-tune your withholding.
2026 standard deductions (IRS Rev. Proc. 2025-32):
| Filing Status | Standard Deduction |
|---|---|
| Single | $16,100 |
| Married Filing Jointly | $32,200 |
| Head of Household | $24,150 |
| Married Filing Separately | $16,100 |
What to Enter in Each W-4 Step
| Step | Use it when | 2026 example |
|---|---|---|
| 2(c) checkbox | You hold two jobs, or you are married filing jointly and both work, at roughly similar pay | Check it on both W-4s; each job then withholds as if the brackets were split in half |
| 3 Dependents | You expect the Child Tax Credit or the $500 credit for other dependents | Two children under 17: $4,400, which cuts withholding by about $169 per biweekly check |
| 4(a) Other income | You have interest, dividends or other income with no withholding | $6,000 of interest: enter $6,000 and the employer withholds on it as if it were wages |
| 4(b) Deductions | You expect deductions beyond the basic standard deduction | $5,000 of deductible overtime premium in the 12% bracket: about $600 less withheld over the year |
| 4(c) Extra withholding | You want a fixed extra amount taken from every check | $2,400 shortfall with 24 biweekly checks left: $100 per check |
Two Earners: Why Couples Under-Withhold
Each employer withholds as if its paycheck were the household's only income. Take a married couple filing jointly who each earn $75,000 with no other adjustments.
| Two jobs, $150,000 joint | Neither checks 2(c) | Both check 2(c) |
|---|---|---|
| Withheld from each job | $4,640 | $7,670 |
| Total withheld | $9,280 | $15,340 |
| Actual 2026 tax on $150,000 joint | $15,340 | $15,340 |
| At filing | $6,060 owed | About even |
Without the checkbox, each job applies the full joint standard deduction and the wide joint brackets to only half the income, so $6,060 goes unwithheld. When the two salaries are very different, the Multiple Jobs Worksheet or a Step 4(c) amount on the higher-paying job is more precise than the checkbox. The calculator above treats the second salary as withheld without the checkbox.
New Deductions on the 2026 W-4
The Step 4(b) Deductions Worksheet on the 2026 form now includes the One Big Beautiful Bill Act deductions, available for tax years 2025 to 2028. Entering them lowers withholding during the year instead of waiting for a refund.
- Qualified tips: up to $25,000, phased out above $150,000 of MAGI ($300,000 joint).
- Qualified overtime: the premium part of overtime pay, up to $12,500 ($25,000 joint), same phase-out.
- Car loan interest: up to $10,000 on a loan for a new, US-assembled personal vehicle bought after 2024, phased out above $100,000 ($200,000 joint).
- Seniors: $6,000 per person 65 or older (born before January 2, 1962, for 2026), phased out above $75,000 ($150,000 joint).
Enter only what you are confident you will qualify for. If the deduction falls short, the lower withholding turns into a balance due. Married couples must file jointly to claim any of the four.
Want to check the effect on each paycheck? Run your numbers through the paycheck calculator, and see the whole return in the tax refund estimator.