Taxation Calculators

What is my potential estate tax liability?
Federal Income Tax Estimator (Current Year)
Should I adjust my payroll withholdings?
Will my investment interest be deductible?
How much self-employment tax will I pay?
Capital gains (and losses) tax estimator
Compare taxable, tax-deferred, and tax-free growth
How much of my social security benefit may be taxable?
What are the tax implications of paying interest?
Should I itemize or take the standard deduction?
What is my taxable-equivalent yield?
2009 tax refund estimator
Tax freedom day