How do you calculate the tax on a premature distribution of an IRA?

To calculate the tax on a premature distribution from an IRA, you first determine the amount being withdrawn before the age of 59½. This amount is generally subject to ordinary income tax, which is based on your tax bracket. Additionally, a 10% early withdrawal penalty applies to the distribution unless you qualify for an exception. To compute the total tax impact, add the income tax amount and the penalty together.