What is the 2026 Social Security wage base?

The projected 2026 Social Security wage base is $184,500. Employees and employers each pay 6.2% in Social Security tax on wages up to this limit. Once an employee's wages reach $184,500 in a calendar year, Social Security withholding stops, resulting in noticeably larger paychecks for high earners in the fourth quarter.

How does the updated W-4 work?

The 2020-and-later W-4 eliminated allowances. Instead, it uses: Step 1 (filing status), Step 2 (multiple jobs or working spouse adjustment), Step 3 (dependent tax credits -- $2,000 per qualifying child), Step 4 (other income, deductions, and extra withholding). The IRS Tax Withholding Estimator at irs.gov helps employees complete their W-4 accurately.

What is the 2026 HSA contribution limit?

The IRS projected 2026 HSA limits are $4,300 for self-only high-deductible health plan coverage and $8,550 for family coverage. Individuals age 55 and older can contribute an additional $1,000 catch-up amount. HSA contributions made through payroll deductions are exempt from both income tax and FICA taxes, making them one of the most tax-efficient deductions available.

Tax & PayrollPopular

Paycheck Calculator (W-4 2026)

Calculate gross-to-net paycheck with 2026 W-4 withholding, federal brackets, FICA ($176,100 SS base), state tax, 401(k), and health insurance deductions.

Annual Gross Salary ($)

Pay Frequency

W-4 Information (2026)

Filing Status

Dependents (Step 3)

$2,000 credit per child.

Extra W/H (Step 4c)

Per paycheck.

State Income Tax Rate (%)

Enter 0 for no-income-tax states (TX, FL, WA, NV, SD, WY, AK, TN, NH).

Pre-Tax Deductions

401(k) (%)

2026 limit: $23,500.

Health Ins ($/period)

HSA ($/year)

2026: $4,300 self, $8,550 family.

Your Results

Enter salary and W-4 details, then click calculate.

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Introduction

Most employees have no idea what their actual paycheck will be when they accept a job offer. They take the annual salary, divide by 26, and assume that is roughly what they will see. It is not. Federal income tax withholding, Social Security, Medicare, state tax, health insurance, and 401(k) contributions can collectively reduce a $75,000 salary paycheck from a theoretical $2,885 bi-weekly gross to a real $1,800 to $2,000 net -- a 30% to 38% reduction the salary number gives no hint of. The IRS 2026 withholding calculation method, documented in Publication 15-T, uses your W-4 elections including filing status, dependent credits, and additional withholding to determine federal tax withheld each pay period. This calculator replicates that process for the 2026 tax year with full pre-tax deduction support so you know your exact net before payday.

What This Calculator Does

This paycheck calculator converts annual gross salary to exact per-paycheck net pay using 2026 IRS W-4 withholding methodology, federal income tax brackets, FICA taxes, state income tax, and pre-tax deductions. Supported pay frequencies: weekly (52), bi-weekly (26), semi-monthly (24), and monthly (12). Pre-tax deductions include traditional 401(k), Roth 401(k) (FICA affected but not federal income tax), health insurance, dental and vision, FSA, and HSA contributions. Output includes net pay per period, annual net, effective federal rate, and itemized deduction and tax breakdown.

The Formula

Net Pay = Gross Pay per Period - Federal Withholding - Social Security (6.2%) - Medicare (1.45%) - State Tax - Pre-Tax Deductions

The IRS 2026 withholding method annualizes per-period gross pay, subtracts pre-tax deductions and the standard deduction ($16,100 single, $32,200 married in 2026), applies the tax bracket to tentative taxable income, subtracts dependent tax credits ($2,000 per qualifying child), and divides by pay periods. Social Security is 6.2% on wages up to the $184,500 projected 2026 wage base. Medicare is 1.45% on all wages. The 0.9% additional Medicare tax on wages above $200,000 is withheld by the employer from the employee share. Pre-tax deductions (traditional 401k, health premiums, FSA, HSA) reduce federal and state taxable income.

Step-by-Step Example

Set up base parameters

Annual salary: $78,000. Pay frequency: bi-weekly (26 periods). Gross per paycheck: $78,000 / 26 = $3,000. Filing status: single. W-4: standard withholding, 0 dependents.

Calculate pre-tax deductions per paycheck

Traditional 401(k): 5% x $3,000 = $150. Health insurance: $85 (employee share). Dental: $8. Total pre-tax deductions: $243.

Calculate federal income tax withholding

Annualized gross for withholding: $3,000 x 26 = $78,000. Less pre-tax deductions: $78,000 - $6,318 = $71,682. Less standard deduction: $71,682 - $16,100 = $55,582 taxable. Annual tax: $7,870 (using 2026 brackets). Per paycheck: $7,870 / 26 = $303.

Apply FICA, state tax, and compute net

SS: $3,000 x 6.2% = $186. Medicare: $3,000 x 1.45% = $43.50. State (5%): $55,582 / 26 x 5% = $106.89. Net pay: $3,000 - $303 - $186 - $43.50 - $106.89 - $243 = $2,117.61 per bi-weekly paycheck.

Real-World Use Cases

New Job Offer Evaluation

A candidate receives a $90,000 offer in a 5% state tax state with employer health insurance at $100/period and a 5% 401k match they plan to capture. This calculator shows $2,580 net per bi-weekly paycheck -- the actual number to budget against, not the implied $3,462 from dividing salary by 26.

W-4 Adjustment After Marriage

An employee who recently married needs to update their W-4 from single to married filing jointly. Running the paycheck calculator for both statuses on their $85,000 salary shows the married status reduces federal withholding by approximately $62 per bi-weekly paycheck ($1,612/year), putting money back in their pocket immediately.

401(k) Contribution Optimization

An employee earning $95,000 wants to contribute enough to get the full 4% employer match ($3,800/year) while maximizing net pay. The calculator shows that contributing 4% ($146/period) reduces net pay by only $103 per paycheck at their 22% marginal rate -- the remaining $43 goes toward reduced taxes rather than reduced take-home.

Comparison

Annual Salary	Filing Status	Pre-Tax 401k %	State Rate	Bi-Weekly Net Pay
$55,000	Single	0%	0%	$1,978
$55,000	Single	6%	5%	$1,625
$75,000	Single	6%	5%	$2,145
$75,000	Married	6%	5%	$2,312
$100,000	Single	6%	5%	$2,750
$100,000	Married	6%	5%	$2,980
$150,000	Single	10%	9.3% (CA)	$3,580

Common Mistakes to Avoid

Dividing annual salary by 26 to estimate bi-weekly net pay. This gives gross pay per paycheck, not net. For a $75,000 salary, gross per check is $2,885 but net is typically $1,900 to $2,300 depending on tax situation.
Forgetting that bi-weekly pay produces three paychecks in two months per year. Employees paid bi-weekly receive 26 paychecks annually, but two months will have three payday dates instead of two. Budget planning based on two paychecks per month underestimates annual take-home by two full paychecks.
Not re-filing a W-4 after major life events. Marriage, divorce, having a child, or a second job all change the optimal W-4 elections. An incorrect W-4 can result in significant under- or over-withholding.
Confusing traditional and Roth 401(k) impact. Traditional 401(k) contributions are pre-tax: they reduce federal income tax withholding immediately. Roth 401(k) contributions are after-tax: they do not reduce withholding and cost more from take-home pay but grow tax-free.

Frequently Asked Questions

Accuracy and Disclaimer

Paycheck estimates are based on 2026 projected federal income tax brackets, $184,500 Social Security wage base, and IRS Publication 15-T withholding methodology. Actual withholding depends on your specific W-4 elections, employer payroll system rounding, state and local tax rules, and benefit plan details. Projected limits are subject to official IRS annual announcements. Verify calculated withholding with your employer payroll department.

Conclusion

Your paycheck amount determines your actual take-home budget -- not the salary number on your offer letter. Use this calculator any time you change jobs, adjust W-4 elections, increase retirement contributions, or change benefit elections. For a broader state-by-state net pay comparison, use the Take-Home Pay Calculator. If you are evaluating whether to convert some traditional 401(k) contributions to Roth, the Roth vs. Traditional IRA Calculator models the long-term after-tax impact.