What is an Income Tax Calculator?
An income tax calculator is a financial tool that estimates your total federal and state tax liability based on your gross annual earnings, filing status, and location. By applying the latest IRS progressive tax brackets and standard deductions, it provides a clear picture of your effective tax rate and your actual take-home pay (net income) after all mandatory withholdings.
For the 2026 tax year, LifeCalc uses the updated tax tables established by Revenue Procedure 2025-32, including the adjusted standard deduction of $16,100 for single filers.
How to Calculate Your 2026 Income Tax
Calculating your taxes manually involves understanding how progressive brackets work. Follow these five steps to estimate your liability:
- 1Determine Your Gross IncomeSum all sources of income, including your W-2 salary, 1099 freelance earnings, interest, and dividends.
- 2Subtract Your Standard DeductionFor 2026, the standard deduction is $16,100 for individuals and $32,200 for married couples filing jointly. This amount is subtracted from your gross income to find your taxable income.
- 3Apply Federal Tax BracketsTaxes are calculated progressively. You only pay higher rates on the portion of your income that falls within those specific brackets.
- 4Calculate FICA WithholdingsSocial Security (6.2% up to the $184,500 wage base) and Medicare (1.45%) are calculated on your gross income, not taxable income.
- 5Factor in State Income TaxAdd any state-level income taxes based on your residency. Nine US states currently have no state income tax.
2026 Federal Income Tax Brackets (Single Filers)
| Tax Rate | Taxable Income Range |
|---|---|
| 10% | $0 to $12,400 |
| 12% | $12,400 to $50,400 |
| 22% | $50,400 to $105,700 |
| 24% | $105,700 to $201,775 |
| 32% | $201,775 to $256,225 |
| 35% | $256,225 to $640,600 |
| 37% | Over $640,600 |
Note: These brackets apply to taxable income (gross income minus deductions). Source: IRS Revenue Procedure 2025-32.
Frequently Asked Questions
How much federal income tax do I pay on $100,000?
On a $100,000 salary filing single in 2026, you would pay approximately $13,842 in federal income tax after the $16,100 standard deduction, for an effective rate of about 13.8%.
What are the 2026 federal income tax brackets?
The 2026 federal income tax brackets for single filers are: 10% on income up to $12,400; 12% from $12,400 to $50,400; 22% from $50,400 to $105,700; 24% from $105,700 to $201,775; 32% from $201,775 to $256,225; 35% from $256,225 to $640,600; and 37% on income above $640,600.
Which states have no income tax?
Nine states have no state income tax: Alaska, Florida, Nevada, New Hampshire (dividends and interest only), South Dakota, Tennessee, Texas, Washington, and Wyoming. Residents of these states only pay federal income tax and FICA.
2026 Fast Facts
Standard Deduction
$16,100 (Single)
Standard Deduction
$32,200 (Married)
Social Security Wage Base
$184,500