Payroll Tax Calculator

CAT: Calculate Your Payroll

Payroll Services: Our professional payroll services handle employee paychecks, tax filings, compliance, and pay stubs.

Last Updated: July 2026 | Content reviewed by the Karme Tax Team

How Much Tax Will Be Taken Out of My Paycheck?

Your paycheck typically includes withholding for: Federal income tax — Based on your income, filing status, and W-4 information; Social Security tax — 6.2% of your gross pay (up to $184,500 annually in 2026); Medicare tax — 1.45% of all gross pay; State income tax — Varies by state (0% to 13% depending on location); Pre-tax deductions — 401(k), HSA, health insurance (if applicable).

Your actual withholding depends on your income, filing status, pay frequency, deductions, and Form W-4. This calculator provides an estimate of how much will be withheld based on the information you enter.

Why Is My Paycheck Smaller Than My Salary?

The difference between your gross salary and take-home pay comes from mandatory withholdings and voluntary deductions. Federal income tax, Social Security, and Medicare are required withholdings that reduce your paycheck.

The exact amount withheld varies depending on your income, tax elections, deductions, and where you live. State and local income taxes (where applicable) further reduce your net pay. Pre-tax deductions like 401(k) contributions and health insurance also lower your take-home amount. This calculator helps you estimate where your money goes.

How Do Pre-Tax Deductions Reduce Taxes?

Pre-tax deductions like 401(k) contributions, HSA deposits, and health insurance premiums are deducted from your gross pay before taxes are calculated. This reduces your taxable income for both federal income tax AND FICA taxes (Social Security and Medicare). For example, a $500/month 401(k) contribution lowers your taxable income by $6,000 annually, saving you federal tax, state tax, and FICA taxes. This creates a compounding benefit where you save on multiple tax types simultaneously.

What Deductions Does Your Paycheck Include?

Paycheck Calculator: What It Does

This calculator computes your paycheck deductions using current 2026 federal tax brackets, standard deductions, and FICA withholding rates. It handles: Federal income tax based on filing status and income; Social Security & Medicare withholding (FICA); State income tax (you enter your state rate); Pre-tax deductions (401k, HSA, health insurance); Multiple pay frequencies (weekly, biweekly, monthly, annual).

Input your gross income, filing status, and state. The calculator shows your net pay per period and annualized net income.

1. Calculate Your Take-Home Pay

Your gross pay is reduced by three main categories of deductions: federal income tax, FICA taxes, and pre-tax contributions. This paycheck calculator helps you estimate how much you'll take home from your salary, whether you're hourly or salaried. Understanding your net pay and paycheck withholding is essential for budgeting.

Federal Income Tax: Calculated using 2026 tax brackets that vary by filing status. For example, single filers pay 10% on the first $12,400 of taxable income, 12% on income from $12,401 to $50,400, and so on up to 37% on income above $640,600. The exact amount depends on your standard deduction and filing status.

FICA Taxes (Social Security & Medicare): Employees typically pay a combined 7.65% in Social Security and Medicare taxes (your employer pays an equal 7.65%). Social Security is 6.2% of gross wages, up to an annual wage base of $184,500. Medicare is 1.45% on all wages with no cap. Self-employed individuals pay both the employee and employer portions, totaling 15.3%.

Pre-Tax Deductions: 401(k) contributions (up to $24,500 in 2026), HSA deposits ($4,400 individual / $8,750 family in 2026), and health insurance premiums reduce your gross before tax is calculated. This creates a compounding benefit: you pay less income tax AND less FICA tax.

Standard Deduction: For 2026, the standard deduction is $16,100 (single), $32,200 (married filing jointly), or $24,150 (head of household). This reduces your taxable income before calculating federal tax.

2. Self-Employment Tax & Quarterly Payments

If you're self-employed (1099 contractor or business owner), you pay self-employment tax instead of FICA withholding. The rates are 12.4% for Social Security (on income up to $184,500 in 2026) and 2.9% for Medicare (on all income), totaling 15.3%.

Self-employment tax is calculated on net profit (revenue minus business expenses) × 92.35%. Deductible business expenses reduce the income subject to self-employment tax and may also lower your federal income tax, providing compounding tax savings.

Quarterly Estimated Payments: Self-employed individuals owing $1,000 or more must pay quarterly estimated taxes on these dates: Q1: April 15; Q2: June 15; Q3: September 15; Q4: January 15. You must pay 90% of your current year tax or 100% of your prior year tax (110% if prior-year income exceeded $150,000) to avoid penalties. Divide your total estimated SE tax by 4 and pay via IRS Direct Pay or EFTPS.

3. Track Deductions & Estimate Your Liability

Two types of deductions reduce taxable income: Standard Deduction (Most taxpayers) — $16,100 (single), $32,200 (MFJ), or $24,150 (HOH) for 2026. You either take the standard deduction or itemize—whichever is larger.

Itemized Deductions (Schedule A): Mortgage interest, state and local taxes (up to $10,000 limit), charitable donations, and medical expenses exceeding 7.5% of income. Only use if total exceeds your standard deduction.

Business Expenses (Schedule C): For self-employed: office rent, utilities, equipment, vehicle mileage (72.5¢ per mile in 2026), professional fees, and supplies. These reduce your self-employment income and self-employment tax.

These three categories are separate. Standard deduction and itemized deductions (Schedule A) reduce your personal income tax. Business expenses (Schedule C) reduce self-employment income.

Year-End Projection: Track your year-to-date gross income and withholding. The calculator annualizes this data and compares projected withholding against your annual tax liability. If you'll owe, adjust your W-4 for remaining paychecks or increase quarterly payments if self-employed.

4. Understand Your Tax Bracket & Filing Status

Use this payroll withholding calculator or salary calculator to understand how your tax bracket affects your take-home income. The 2026 federal tax system has seven brackets (10%, 12%, 22%, 24%, 32%, 35%, 37%). Your bracket depends on filing status:

• Single Filer: 10% on first $12,400 | 12% to $50,400 | 22% to $105,700 | ... | 37% over $640,600
• Married Filing Jointly: 10% on first $24,800 | 12% to $100,800 | 22% to $211,400 | ... | 37% over $768,700
• Head of Household: 10% on first $17,700 | 12% to $67,650 | 22% to $102,300 | ... | 37% over $640,600

These thresholds were adjusted approximately 2.7% for inflation from 2025 to 2026.

State Income Tax

State rates range from 0% (Texas, Florida, Nevada, Tennessee, Washington, Wyoming) to 13% (California). Some cities impose local income tax (NYC 3.9%, Philadelphia 3.8%, Columbus 2.1%, Washington DC 8.95%). Enter your applicable state income tax rate. Residents of states without an income tax (such as Texas or Florida) can enter 0%.

Calculator vs. Other Tools

Tax Preparation Software (TurboTax, TaxAct): Tax software prepares your complete return, discovers deductions, and generates filings. This calculator estimates paycheck deductions and liability. Use the calculator during the year to monitor withholding; use tax software in January-March to prepare your actual return.

IRS W-4 Estimator: The IRS's official tool calculates federal withholding. This calculator offers more flexibility — you can model salary changes, side income, and deduction impacts instantly. Both are free; this one is faster for scenarios.

Payroll Processing Software: Payroll services (ADP, Paychex, Gusto, Square Payroll) process employee paychecks, calculate withholding, and file quarterly returns. This calculator is for individuals checking paycheck accuracy or planning personal taxes. Employers need payroll software; employees need this calculator.

Spreadsheets: Many use Excel to estimate taxes. Spreadsheets are error-prone (formula mistakes propagate), outdated (manual rate entry), and time-consuming. This calculator is automated, updated annually, and recalculates instantly.

Frequently Asked Questions

Is this calculator accurate? Results use current 2026 IRS tax brackets, standard deductions, and FICA rates. Calculations are reliable for paycheck verification, W-4 adjustments, and tax planning. Complex situations (multiple jobs, business income, investments) benefit from professional review. Results are estimates, not tax advice.

When should I update my W-4? If the calculator shows you'll overpay or underpay significantly, file a new Form W-4 with your employer. Overpaying? Update your Form W-4 by adjusting your withholding information so less tax is withheld from future paychecks. Underpaying? Adjust your withholding so more tax is withheld. Changes take effect in your next paycheck.

Can I use this for multiple jobs? Yes. Add gross income from all jobs, total federal withholding, and all pre-tax deductions. The calculator shows combined tax liability. Multiple jobs can push you into higher brackets; use this to verify withholding accuracy at each employer.

What about dependents and child tax credits? Dependents may affect your tax liability through available tax credits and your standard deduction, subject to current IRS rules and income limits. This calculator focuses on wage withholding; tax credits require detailed analysis best handled by tax software or a professional.

How often are tax brackets updated? Annually. The IRS adjusts brackets for inflation each October/November for the following tax year. This calculator uses 2026 rates and will be updated for Tax Year 2027 in fall 2026.

What if my paycheck calculation differs from my actual paycheck? Employers may use slightly different withholding methods. Review your pay stub line-by-line: gross pay, federal withholding, FICA withholding, state tax, and deductions. Small differences are normal. Large discrepancies warrant a conversation with payroll.

Is self-employment tax different? Yes. Employees pay 7.65% FICA (split between them and employer). Self-employed pay 15.3% (both halves). However, self-employed people can deduct half of SE tax from taxable income. This calculator includes a separate self-employment section.

Can I download these results? Yes. Screenshot or print the results for your records. Use them for paycheck verification, tax planning, W-4 adjustments, and professional review.

When to Seek Professional Help

This calculator handles standard paycheck scenarios well. Professional tax guidance helps when: You have business income requiring accurate profit/loss calculation and quarterly payment tracking; You have multiple income sources (W-2 job + 1099 income + rental income); You live in a complex tax state (progressive brackets, local taxes, reciprocity rules); Your income is high or volatile requiring quarterly adjustment strategies.

For Texas residents with straightforward situations, this calculator is often sufficient. For complex tax planning, business structures, or year-round optimization, professional bookkeeping and accounting services provide greater savings than the cost of professional support.

Tax Year 2026: What's Current

This calculator uses current tax figures for Tax Year 2026 (returns filed in 2027) based on current IRS guidance:

• Standard Deductions: $16,100 (single), $32,200 (MFJ), $24,150 (HOH) per IRS Revenue Procedure 2025-32
• Tax Brackets: Seven brackets (10%–37%) with thresholds adjusted ~2.7% for inflation per IRS Revenue Procedure 2025-32
• 401(k) Limit: $24,500 employee deferrals, $8,000 catch-up for age 50+ per IRS Notice 2025-67
• Social Security Wage Base: $184,500 (increased from $176,100 in 2025)
• Mileage Rate: 72.5¢ per mile for business use per IRS IR-2025-128
• HSA Limits: $4,400 (individual), $8,750 (family) per IRS Revenue Procedure 2025-19

These figures are based on current IRS guidance and are updated as new guidance becomes available. Annual adjustments typically occur each October-November when the IRS announces the following year's figures.

More Than Just a Calculator

If you're self-employed or managing quarterly taxes, organized record-keeping throughout the year eliminates April surprises. Professional bookkeeping services maintain clean income and expense records, track deductions, and provide data ready for tax preparation.

For businesses with employees, accurate payroll processing ensures compliant withholding and timely filings. Our professional Payroll services providers handle the operational burden, tax filings, compliance, and employee pay stubs.

If your tax situation is more complex — multiple income sources, business ownership, or the Dallas/McKinney area needs personalized tax planning and accounting services to review your complete situation and identify year-round optimization strategies.

Disclaimer

This calculator provides estimates based on 2026 IRS tax brackets, standard deductions, and FICA rates. Results are for educational and planning purposes only and do not constitute professional tax advice. This calculator is intended for estimation purposes and should not be relied upon as legal, tax, or financial advice.

Your actual tax liability depends on your complete financial situation, state of residence, filing status, life events (marriage, children, business changes), and current tax law. Results should be reviewed with a qualified tax professional, CPA, or enrolled agent before making significant financial or withholding decisions.

For more information or personalized guidance, contact a tax professional or visit the IRS website (IRS.gov) for current publications and forms.