United States
North America
The United States has a progressive federal income tax system with rates from 10% to 37%, payroll taxes through FICA, state and local income taxes, and capital gains taxes. Tax residents are taxed on worldwide income, while non-residents are taxed only on US-source income. The tax year follows the calendar year, with returns due April 15th.
United States Tax Cheatsheet (2025)
Key tax metrics at a glance for residents and expats.
How Taxation Works in United States
Understand the basics of United States's tax system, who pays tax, and how rates apply to individuals and businesses.
Tax System
The US federal income tax uses a progressive rate structure where higher portions of income are taxed at higher rates. Tax is collected through withholding (employer deductions), estimated quarterly payments, and annual filing. The self-assessment system requires taxpayers to calculate and report their own tax liability.
Residents
US citizens, green card holders, and resident aliens are taxed on worldwide income. Non-resident aliens are taxed only on US-source income. Employers withhold federal income tax, Social Security, and Medicare from employee wages. Self-employed individuals pay self-employment tax and make quarterly estimated payments.
Non-Residents
Resident aliens are taxed on worldwide income like US citizens. Non-resident aliens are taxed only on US-source income. Residency is determined by the Substantial Presence Test (183 days or more over a 3-year period) or green card status.
Individuals
The federal income tax uses seven progressive brackets from 10% to 37%. Rates depend on taxable income and filing status. State income tax varies widely — some states have no income tax, while others have top rates above 10%.
Businesses
C-Corporations pay a flat 21% federal corporate tax. Pass-through entities (S-Corps, LLCs, partnerships) are not taxed at the entity level — income flows through to owners' personal returns. Self-employed individuals pay self-employment tax (15.3% for Social Security and Medicare).
Tax Year
The US tax year follows the calendar year (January 1 – December 31). Returns for the calendar year are filed the following April.
Filing Status
Your filing status determines your standard deduction, tax brackets, and eligibility for credits. Options include Single, Married Filing Jointly, Married Filing Separately, Head of Household, and Qualifying Surviving Spouse.
Adjusted Gross Income (AGI)
AGI is your gross income minus above-the-line deductions. It determines eligibility for many tax credits and deductions.
Marginal vs Effective Tax Rate
Your marginal rate is the rate on your last dollar of income. Your effective rate is the average rate across all income.
Important Tax Information
Key facts about United States's tax system to help you understand your obligations.
Tax Year
2025
Filing Deadline
April 15, 2025 (individuals); October 15, 2025 (with extension)
Tax Authority
Currency
USD
Residency Rules
Resident aliens are taxed on worldwide income like US citizens. Non-resident aliens are taxed only on US-source income. Residency is determined by the Substantial Presence Test (183 days or more over a 3-year period) or green card status.
Employer Withholding
Employers withhold federal income tax, Social Security (6.2%), and Medicare (1.45%) from employee wages based on Form W-4. Additional Medicare tax of 0.9% applies to high earners. Self-employed individuals pay self-employment tax (15.3%) and make quarterly estimated payments.
Payment Deadline
Quarterly estimated tax payments due April 15, June 15, September 15, and January 15
Tax Brackets & Rates
2025 income tax brackets for United States. Tax is calculated progressively — higher portions of income are taxed at higher rates.
Progressive Tax
Higher portions of income are taxed at higher rates. Only the income within each bracket is taxed at that bracket's rate.
Marginal Rate
The rate applied to your last dollar of income. It determines the tax on your next dollar earned.
Effective Rate
The average rate across all your income. Total tax divided by total income gives your true tax burden.
| Bracket | Rate | Threshold | Notes |
|---|---|---|---|
| 10% | 10% | $0 – $11,600 | Single filers |
| 12% | 12% | $11,601 – $47,150 | Single filers |
| 22% | 22% | $47,151 – $100,525 | Single filers |
| 24% | 24% | $100,526 – $191,950 | Single filers |
| 32% | 32% | $191,951 – $243,725 | Single filers |
| 35% | 35% | $243,726 – $609,350 | Single filers |
| 37% | 37% | Above $609,350 | Single filers; different thresholds for MFJ, HOH, MFS |
Common Deductions in United States
Deductions reduce your taxable income. Here are the most common deductions available to United States taxpayers.
Standard Deduction
2025 standard deduction: $15,000 (single), $30,000 (MFJ), $22,500 (HOH), $15,000 (MFS). Additional $2,000 for seniors and blind.
Standard Deduction
2025 standard deduction: $15,000 (single), $30,000 (MFJ), $22,500 (HOH), $15,000 (MFS).
Itemized Deductions
SALT cap of $10,000, mortgage interest on home loans up to $750,000, charitable contributions, medical expenses exceeding 7.5% of AGI.
Above-the-Line Deductions
Traditional IRA contributions, student loan interest, HSA contributions, educator expenses, self-employment SE deduction.
Child Tax Credit
Up to $2,000 per qualifying child under 17. Refundable portion up to $1,700 per child.
Earned Income Tax Credit
Refundable credit for low-to-moderate income workers. Amount varies by income and number of children.
Tax Credits in United States
Tax credits directly reduce your tax liability. Here are the major credits available in United States.
Child Tax Credit
Up to $2,000 per qualifying child under 17. Partially refundable.
Earned Income Tax Credit
Refundable credit for low-to-moderate income workers. Up to $7,430 for 3+ children in 2025.
American Opportunity Tax Credit
Up to $2,500 per year for the first 4 years of post-secondary education.
Lifetime Learning Credit
Up to $2,000 per tax return for education expenses.
Child and Dependent Care Credit
Credit for childcare expenses while working or looking for work.
Who Should Use This Calculator
Our United States tax calculators are designed for a wide range of users. See if they match your situation.
Employees
W-2 employees with federal and state income tax withholding who want to estimate their tax liability and take-home pay.
Freelancers & Contractors
1099 contractors and gig workers who receive income without withholding and need to calculate self-employment tax and quarterly estimated payments.
Self-Employed
Business owners and sole proprietors who pay self-employment tax, need to estimate quarterly payments, and want to understand their effective tax rate.
Investors
Individuals with capital gains, dividends, or investment income who need to estimate their total tax burden across ordinary and preferential rates.
Expats
US citizens and green card holders living abroad who must file US tax returns on worldwide income and may qualify for foreign earned income exclusion.
How to Use the United States Tax Calculator
Get an accurate tax estimate in just a few steps. Here is how to use our calculator effectively.
Enter Income
Input your annual income including wages, salaries, tips, freelance income, investment income, and any other earnings.
Choose Tax Year
Select the tax year to apply the correct IRS brackets, standard deductions, and contribution limits.
Select Filing Status
Choose your filing status: Single, Married Filing Jointly, Head of Household, etc. This determines your tax brackets and standard deduction.
Review Deductions
Choose between standard deduction and itemized deductions. Enter itemized amounts if applicable, or use the standard deduction.
Calculate & Review
Click Calculate to see your taxable income, federal tax, effective rate, marginal rate, and take-home pay. Review results and compare scenarios.
Frequently Asked Questions
Quick answers to common questions about United States taxation, filing requirements, and using our calculators.
When is the federal tax filing deadline?
The federal tax filing deadline is typically April 15th. Extensions are available until October 15th by filing Form 4868.
Do I need to file if I live abroad?
US citizens and green card holders must file federal tax returns regardless of where they live abroad. Foreign earned income exclusion may apply.
What is the standard deduction for 2025?
The 2025 standard deduction is $15,000 for single filers, $30,000 for married filing jointly, and $22,500 for heads of household.
What are the 2025 federal tax brackets?
The 2025 federal income tax brackets are 10%, 12%, 22%, 24%, 32%, 35%, and 37% depending on your taxable income and filing status.
What is FICA tax?
FICA (Federal Insurance Contributions Act) tax funds Social Security and Medicare. Employees pay 7.65% (6.2% Social Security + 1.45% Medicare). Employers match the same amount.
Do I need to pay estimated taxes?
If you have income not subject to withholding (self-employment, investments, rental income), you likely need to make quarterly estimated tax payments.
Explore United States Tax
Trust & Transparency
Last Updated
2025-06-15
Educational Disclaimer
The tax information and calculators on this page are for educational and informational purposes only. They do not constitute professional tax advice. Tax laws are subject to change. Always consult a qualified tax professional for advice specific to your situation.
Calculation Methodology
Tax calculations follow the Internal Revenue Code and IRS regulations. Brackets and rates are sourced from the latest IRS Revenue Procedure. The standard deduction amounts are adjusted annually for inflation per the Tax Cuts and Jobs Act. Capital gains rates follow the preferential long-term rates established by the American Taxpayer Relief Act of 2012.
Data Sources
- Internal Revenue Service (IRS)
- Tax Cuts and Jobs Act (TCJA)
- SECURE 2.0 Act
Privacy-First
All calculations are performed locally in your browser. No personal data is collected, stored, or transmitted to any server. Your financial information never leaves your device.
Official Authority
For the most accurate and up-to-date information, visit the official government tax authority:Internal Revenue Service (IRS)
Country Tax Overview
