The new MarketWatch Corporate Tax Calculator allows you to look at average income-tax rates for individual S&P 500 companies and for the benchmark index’s 11 sectors. Partner Center.

This federal income tax calculator considers basic filing and income information to estimate your tax bill for the year. If you qualify for deductions other than 401(k) and IRA contributions, then ...

Learn how to calculate capital gains tax with this comprehensive guide and calculator. Understand short-term vs. long-term gains and how to minimize your tax liability.