Rule: Generally, unless an exception applies, retirement money cannot be withdrawn until the individual reaches the age of 59 ½. If retirement money (without an exception) is withdrawn before the age of 59 ½, the premature distribution is subject to a 10% penalty tax (in addition to the applicable regular income tax that applies to all distributions of traditional IRA money).

Choice "d" is correct. The taxpayer is under the age of 59 ½, and the facts do not indicate that an exception applies; therefore, the taxpayer is subject to the 10% penalty on the IRA distribution in addition to the regular income tax. The regular income tax that applies is the marginal rate (the rate for the next dollar of taxable income). The effective tax rate is simply the total tax divided by the total taxable income. In this case, the taxpayer would have to pay the regular tax on the distribution at the 35% marginal rate PLUS the 10% penalty on early distribution without an exception. The calculation to arrive at the total tax associated with the withdrawal follows:

Choice "c" is incorrect. This answer option assumes the effective income tax rate (rounded, assuming 33.33%) applied to the $30,000 distribution. It uses the incorrect tax rate (the marginal rate should be used) and omits the inclusion of the applicable 10% penalty tax. [$30,000 × 33.33% = $10,000]

Choice "b" is incorrect. This answer option includes the $30,000 distribution multiplied by the (proper) marginal tax rate, but it omits the inclusion of the applicable 10% penalty tax. [$30,000 × 35% = $10,500]

Choice "a" is incorrect. This answer option assumes the effective income tax rate (rounded, assuming 33.33%) applied to the $30,000 distribution plus the applicable 10% penalty tax [($30,000 × 33.33%) + ($30,000 × 10%) = $13,000]. It uses the incorrect tax rate (the marginal rate should be used).