Income Tax
Federal and state income tax obligations for individuals and businesses in the United States.
The United States imposes a progressive federal income tax system with rates ranging from 10% to 37% for the highest earners. Tax residents are taxed on worldwide income, while non-residents are taxed only on US-source income. State and local taxes may also apply depending on your jurisdiction.
🧮 Calculators
3 Tools AvailableFederal Income Tax Calculator
🔥 Top ToolEstimate your federal income tax liability based on current IRS tax brackets.
State Income Tax Calculator
Compare state income tax rates and estimates across major US states.
Effective Tax Rate Calculator
Calculate your effective tax rate and understand your true tax burden.
📘 Tax Guides & Explanations
9 ArticlesHow to File Your Income Tax Return
Step-by-step guide to filing your US federal income tax return, including form selection, deadlines, and common mistakes to avoid.
Understanding US Tax Brackets
Learn how progressive tax brackets work, how marginal rates apply, and practical strategies to minimize your tax liability.
Itemized Deductions vs Standard Deduction
Compare standard and itemized deductions to determine which option reduces your taxable income more effectively.
Complete FICA Tax Guide
Understanding Social Security and Medicare taxes, wage base limits, and additional Medicare tax obligations.
Self-Employment Tax Guide
How SE tax works, the deductible portion, and guidance on quarterly estimated payments.
Business Entity Tax Guide
Compare tax obligations by business entity type: C-Corp, S-Corp, LLC, and sole proprietorship.
Capital Gains Tax Guide
Understand short-term vs long-term capital gains, tax rates, and strategies to minimize your tax liability.
Tax Implications of Selling Property
Guide to capital gains on real estate, depreciation recapture, 1031 exchanges, and primary residence exclusions.
Estate Planning Tax Guide
Strategies to minimize estate tax including gifting, trusts, and charitable giving.
❓ Frequently Asked Questions
🌐 Related Tax Categories
Payroll Tax
Employer and employee payroll tax obligations including FICA and self-employment taxes.
Corporate Tax
Federal corporate income tax and business entity taxes.
Capital Gains Tax
Tax on profits from the sale of investments and property.
Estate & Inheritance Tax
Federal estate tax and state inheritance taxes.
IRS Support & Resources
IRS phone numbers, online tools, filing help, and taxpayer assistance resources.
Tax Planning Strategies
Year-round tax planning tips, strategies to reduce taxes, and optimization techniques.
Finsiva researches tax rules and calculation parameters using official government sources and reviews financial content for accuracy, methodology, and statutory changes.