Paycheck Withholding Guide for 2026
Every pay period, your employer withholds federal income tax, Social Security tax, and Medicare tax from your gross pay before you see a dollar. How much they withhold depends on your W-4 elections, the 2026 federal tax brackets, and your income level. This guide walks through each withholding category, shows how the math works on a real paycheck, and explains how the new OBBBA deductions can change your take-home pay.
What is paycheck withholding?
Paycheck withholding is the system by which your employer sends a portion of your wages directly to the IRS on your behalf throughout the year. Rather than paying your entire annual tax bill in April, withholding spreads the payments across every pay period. The amount withheld is based on the information you provide on Form W-4 and the IRS withholding tables.
There are three main federal withholding categories on every paycheck:
- Federal income tax (based on your bracket and W-4 elections)
- Social Security tax (6.2% of wages up to $184,500)
- Medicare tax (1.5% of all wages, plus 0.9% above $200,000 for single filers)
Together, Social Security and Medicare are called FICA taxes. Your employer matches the base FICA amounts, but the Additional Medicare Tax is employee-only.
Federal income tax withholding
Federal income tax withholding is the most variable part of your paycheck deductions. It is driven by two things: the 2026 income tax brackets and the W-4 form you submitted to your employer.
The 2026 federal income tax brackets for single filers are:
| Taxable Income | Rate |
|---|---|
| $0 to $12,400 | 10% |
| $12,400 to $50,400 | 12% |
| $50,400 to $105,700 | 22% |
| $105,700 to $201,775 | 24% |
| $201,775 to $256,225 | 32% |
| $256,225 to $640,600 | 35% |
| $640,600 and above | 37% |
Your employer uses these brackets (along with the standard deduction of $16,100 for single filers) to estimate how much federal tax you owe for the year, then divides that into equal amounts per pay period. The W-4 form adjusts these estimates based on your specific situation: dependents, second jobs, or extra deductions.
For a detailed look at how brackets work, see 2026 Tax Brackets Explained.
Social Security withholding
Social Security tax (also called OASDI) is a flat 6.2% on wages up to the2026 wage base of $184,500. Your employer withholds6.2% from your gross pay each period, and matches that amount with their own 6.2% contribution.
Once your year-to-date earnings reach $184,500, Social Security withholding stops for the rest of the year. If you work multiple jobs and your combined wages exceed the wage base, you may over-pay Social Security tax and can claim the excess as a credit on your tax return.
On a $65,000 salary, you will pay $4,030 in Social Security tax for the full year ($65,000 x 6.2%), since $65,000 is well below the $184,500 wage base.
Medicare withholding
Medicare tax is 1.5% on all wages with no cap. Unlike Social Security, there is no wage base limit. Your employer withholds 1.5%and matches it.
High earners also pay the Additional Medicare Tax of 0.9% on wages above $200,000 (single filers). This surtax is withheld by your employer once your year-to-date wages exceed $200,000, but it is not employer-matched. If your wages are below that threshold, you will only see the base 1.5% on your pay stub.
For someone earning $65,000, annual Medicare tax is $943 (1.5% x $65,000). The Additional Medicare Tax does not apply since $65,000 is below $200,000.
Run your own numbers with the FICA calculator.
How your filing status affects withholding
The filing status you select on your W-4 (Step 1c) determines which set of tax brackets and which standard deduction your employer uses to calculate your withholding. The differences are significant:
- Single or Married Filing Separately: Standard deduction of $16,100. The 22% bracket starts at $50,400 of taxable income.
- Married Filing Jointly: Standard deduction of $32,200. The 22% bracket starts at $100,800. If you check the "Married Filing Jointly" box and your spouse also works, you should complete Step 2 to avoid under-withholding.
- Head of Household: Standard deduction of $24,150. The brackets are wider than single but narrower than MFJ.
Selecting the wrong filing status is one of the most common causes of unexpected tax bills or large refunds at filing time.
The W-4 form explained
The W-4 tells your employer how to adjust your federal income tax withholding. It has five steps, but most people only need to complete Steps 1 and 5:
- Step 1: Your name, Social Security number, and filing status.
- Step 2: Multiple jobs or spouse works. Use the IRS calculator or the worksheet to account for income from other sources. Skipping this step when both spouses work often leads to under-withholding.
- Step 3: Dependents. Enter the dollar amount of credits you expect (e.g., Child Tax Credit). This reduces your withholding.
- Step 4(a): Other income not from jobs (interest, dividends, retirement). Adding this increases withholding.
- Step 4(b): Deductions beyond the standard deduction. If you itemize or qualify for above-the-line deductions (like the OBBBA tips/overtime deductions), enter the extra amount here to reduce withholding.
- Step 4(c): Extra withholding per pay period. Use this if the other steps still do not produce enough withholding.
Use the W-4 withholding calculator to model different scenarios before submitting a new form to your employer. For a step-by-step walkthrough, see How to Adjust Your W-4 Withholding for 2026.
How OBBBA deductions affect your withholding
The One Big Beautiful Bill Act introduced two new above-the-line deductions that can reduce your federal income tax:
- Tips deduction: Up to $25,000 for W-2 employees in customarily tipped occupations (full guide)
- Overtime premium deduction: Up to $12,500 for single filers ($25,000 MFJ) for FLSA non-exempt employees (full guide)
These deductions reduce your taxable income but not your FICA obligations. To see the benefit in your paycheck now rather than waiting for a refund, enter your expected OBBBA deduction amount on W-4 Step 4(b). For example, if you expect $12,500 in overtime premium deductions, add $12,500 to your Step 4(b) total. This tells your employer to withhold less federal income tax each pay period.
Worked Example: Biweekly Paycheck on a $65,000 Salary (Single Filer)
Gross pay per period: $65,000 / 26 = $2,500
Federal income tax: Annual taxable income = $65,000 - $16,100 standard deduction = $48,900. Using the 2026 brackets, annual federal tax is approximately $5,620, or $216.15 per biweekly pay period.
Social Security: $2,500 x 6.2% = $155
Medicare: $2,500 x 1.5% = $36.25
Total federal withholding: $407.4
Net pay (before state tax and benefits): $2,092.6
This does not include state income tax, health insurance premiums, 401(k) contributions, or other voluntary deductions, which would further reduce take-home pay.
Try the paycheck calculator with your own salary and state to see your full breakdown.
When to update your W-4
Your W-4 is not a set-and-forget document. You should submit a new W-4 whenever your tax situation changes:
- Marriage or divorce: Changes your filing status and bracket thresholds
- New child: Adds dependent credits on Step 3
- Job change: New employer requires a new W-4
- Second job or spouse starts working: Requires Step 2 adjustments
- Significant income change: Raise, bonus, or loss of income
- New OBBBA eligibility: Starting a tipped job or overtime-eligible position
- Large refund or balance due: Adjust to get closer to breaking even
Changes take effect on the next pay period after you submit the new form. There is no limit to how many times you can update your W-4 during the year.
Supplemental wages (bonuses and overtime)
Supplemental wages include bonuses, overtime pay, commissions, and severance. Employers can withhold federal income tax from supplemental wages using one of two methods:
- Flat rate method: Withhold 22% on supplemental wages up to $1,000,000. Above $1,000,000, the rate is37%.
- Aggregate method: Combine the supplemental pay with your regular pay for the period and withhold based on the total using standard bracket calculations.
The 22% flat rate often causes confusion because it can look like bonuses are taxed at a special higher rate. They are not. The22% is simply a withholding estimate. Your actual tax rate on the bonus depends on your marginal bracket. For more, see The 22% Bonus Tax: Why Your Bonus Seems Over-Taxed.
FICA taxes (6.2% Social Security + 1.5% Medicare) apply to supplemental wages the same way they apply to regular wages, with the same $184,500 Social Security cap.
How to check if your withholding is right
The goal of withholding is to pay approximately what you owe over the course of the year, avoiding both a large refund (which means you gave the government an interest-free loan) and a large balance due (which may trigger penalties). Here is how to verify:
- Use the IRS Tax Withholding Estimator at irs.gov. Have your most recent pay stub and last year's return ready.
- Compare year-to-date withholding to projected tax: Multiply your per-period federal withholding by the total number of remaining pay periods and add it to what has already been withheld. Compare that total to your estimated annual tax liability.
- Check FICA totals: Verify that Social Security withholding is on track to reach $11,439 (or less if you earn under $184,500). Use the FICA calculator to confirm.
- Account for life changes: If anything changed mid-year, re-run the estimate with the updated numbers.
If you are self-employed or have significant non-wage income, you may need to make quarterly estimated tax payments instead of relying on withholding. See Safe Harbor for Estimated Taxes for the rules on avoiding underpayment penalties.