Paycheck Calculator

Gross wages and take-home pay answer different questions. Gross pay is earnings before taxes and deductions. Net pay is what remains after federal income tax, Social Security and Medicare taxes, state or local withholding, benefit deductions, and any other per-check amounts. Two workers with the same salary can therefore receive different checks because their pay frequency, filing details, benefits, year-to-date wages, and local taxes differ.

Pay frequency affects more than the date money arrives. Annual salary is divided by the number of checks, while federal planning math annualizes the taxable amount from one check before applying deductions, brackets, and credits. Weekly and biweekly are not interchangeable with semi-monthly: they normally mean 52, 26, and 24 checks per year.

Withholding is a prepayment, not the final tax on an income-tax return. A payroll system normally uses the employee's current Form W-4 and the official withholding methods, while an annual tax return also accounts for deductions, credits, other income, household circumstances, and changes during the year. A paycheck estimate is most useful for budgeting and reasonableness checks, not for certifying payroll or predicting a refund.

Social Security and Medicare follow separate wage rules. For 2026, the employee Social Security rate is 6.2% up to the $184,500 wage base. Medicare is 1.45% without that wage cap, and employers begin withholding an additional 0.9% Medicare tax when wages they pay to an employee exceed $200,000 during the year. Year-to-date FICA wages are therefore essential near either threshold.

State and local withholding is especially hard to generalize. Jurisdictions may use allowances, brackets, reciprocity agreements, local districts, disability programs, or other rules that a flat rate cannot reproduce. Entered state and local values should come from a current pay statement, payroll table, or jurisdiction-specific calculator.

How to Use This Tool:

Model one representative check, then compare the result with current payroll information.

1. Choose Hourly, Annual salary, or Gross pay per paycheck. Enter the corresponding wages and select the correct number of checks per year.
2. Choose the federal filing status, enter annual credits and other annual taxable income, and keep federal withholding enabled for an ordinary U.S. estimate.
3. Separate income-tax pre-tax deductions, FICA-exempt benefits, and post-tax deductions according to the benefit's actual payroll treatment. Add state and local values only from a source that matches the employee's jurisdiction.
4. Enter year-to-date FICA wages when the employee may approach the Social Security wage base or the $200,000 Additional Medicare withholding threshold.
5. Compare Estimated net pay with the withholding audit and warnings. A result that differs materially from a real pay statement should be reconciled with the W-4, taxable-benefit treatment, payroll frequency, and jurisdiction rules.

Interpreting Results:

Read the ledger from gross pay down to net pay. Federal taxable pay is the amount annualized for the simplified federal model, while FICA taxable pay is the amount used for Social Security and Medicare. They can differ because the two deduction inputs are independent.

• A high Take-home rate is not automatically correct. It can be caused by disabled federal or FICA modules, zero state/local inputs, credits, or wages above the Social Security base.
• Marginal federal rate is the rate on the next dollar of modeled taxable income, not the percentage withheld from the whole check.
• The annual projection repeats the current check pattern. Irregular overtime, bonuses, changing benefits, and thresholds can make the real year different.
• Negative net pay means the entered deductions and withholding exceed gross pay. It is a signal to correct the assumptions, not a valid paycheck instruction.

Technical Details:

The model uses 2026 U.S. annual tax brackets and standard deductions as a transparent planning approximation. It does not reproduce the complete Form W-4 and Publication 15-T wage-bracket or percentage method. Monetary stages are rounded to the nearest cent as they are calculated.

Formula Core

Gross pay depends on the selected pay basis. Hourly pay includes regular and overtime earnings; salary is divided by checks per year; per-check mode accepts gross pay directly.

Federal taxable pay per check is gross pay less the income-tax pre-tax deduction, capped so it cannot fall below zero. The amount is annualized, other annual taxable income is added, and the filing-status standard deduction is subtracted.

The annual progressive tax from the bracket table is reduced by annual credits, but not below zero. Per-check federal income tax is annual tax after credits divided by checks per year, plus extra federal withholding.

2026 Federal Rule Core

Each listed amount is the lower bound at which the rate in that column begins. The first band starts at zero. Exact boundary amounts enter the higher bracket for the marginal-rate label, while progressive tax charges each slice at its own rate.

The 10% band begins at $0 for every status. Credits are entered as one annual amount and cannot reduce modeled federal income tax below zero.

FICA and Net Pay

FICA taxable pay is gross pay less the separate FICA-exempt benefit amount, capped at zero. Social Security applies only to the part of the current check below the remaining 2026 wage base. Medicare applies to all FICA wages, and Additional Medicare applies only to the part that crosses or exceeds the employer's $200,000 year-to-date withholding threshold.

State and local withholding equals federal taxable pay times the entered flat rate plus the entered flat amount. No state, city, district, reciprocity, or special payroll rule is looked up. The FICA-exempt benefit changes the FICA wage base but is not itself subtracted from net pay unless it is also entered in the appropriate deduction field.

Responsible Use Note:

This calculator provides an educational planning estimate for 2026 U.S. wages. It is not payroll software, a Form W-4 calculation, a pay statement, or tax advice. Confirm the result against current IRS publications, the employee's elections, benefit-plan tax treatment, state and local rules, and the employer's payroll system before paying wages or making financial decisions.

Worked Examples:

References:

• Publication 15-T (2026), Federal Income Tax Withholding Methods, Internal Revenue Service, 2026.
• Publication 15 (2026), Employer's Tax Guide, Internal Revenue Service, 2026.
• Tax year 2026 inflation adjustments, Internal Revenue Service, October 9, 2025.
• Topic No. 751: Social Security and Medicare withholding rates, Internal Revenue Service.