What Is My Current Cash Flow? Assess whether you are running “in the black” or “in the red” each month. You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Content Tax Deductions You Won't Believe Here are some examples of deductions from the IRS that were permitted and some that were, uh, too creative. Four Really Good Reasons to Invest There are four very good reasons to start investing. Do you know what they are? Federal Income Tax Use this calculator to estimate your income tax liability along with average and marginal tax rates.