What is the difference between investing pre-tax and after-tax contributions?
The difference between the two types of contributions is when you are taxed. Pre-tax contributions and earnings are taxed only when you withdraw it. Since the money that would normally be paid in taxes goes directly into the plan, pre-tax contributions can accumulate quickly. However, if you need to withdraw money prior to age 59 you may incur a 10% withdraw penalty, in addition to owing current income taxes. After-tax contributions are taxed before they are put into the plan. Although you won’t owe taxes on your contributions when you take a withdrawal, you will be taxed on the earnings and may be subject to an early withdrawal penalty on the interest earned if you do so before age 59.
