Avoid paying penalty or avoid giving uncle Sam free loan by knowing how much your estimated tax liability.
Trading stock? This app can help you figure out the tax impact of your trade.
Account for five filing statuses: single, married filing jointly, married filing separately, head of household, and widow.
various income sources
educator expense deduction
student loan interest deduction
standard deduction vs itemized deduction
Pease limitations for itemized deduction
PEP limitations for exemption
child tax credit
dependent care credit, etc.