Question 1

What is a 401(k) plan?

Accepted Answer

A 401(k) is an employer-sponsored retirement savings plan in the United States that allows employees to contribute a portion of their pre-tax income toward investments for retirement. Employers may match contributions up to a specified percentage, and the funds grow tax-deferred until withdrawal. The plan is named after Section 401(k) of the Internal Revenue Code, which was added in 1978 and established the legal framework for these accounts. Tax Treatment and Contribution Limits Contributions to traditional 401(k) plans are made with pre-tax dollars, reducing taxable income in the year they are made. As of 2024, the annual contribution limit for individuals under 50 is $23,000, with an additional $7,500 catch-up contribution allowed for those aged 50 and older, according to the IRS. Earnings grow tax-deferred, and taxes are paid upon withdrawal during retirement. Employer Matching and Vesting Many employers offer matching contributions, commonly up to 3% to 6% of an employee’s salary. These matches often follow a vesting schedule, meaning employees gain full ownership over time. Fully vested balances belong to the employee even if they leave the company. Roth 401(k) options are also available, allowing after-tax contributions with tax-free withdrawals in retirement, subject to eligibility rules.

Question 2

What is the difference between a traditional 401(k) and a Roth 401(k)?

Accepted Answer

The primary difference between a traditional 401(k) and a Roth 401(k) lies in the tax treatment of contributions and withdrawals. Traditional 401(k) contributions are made with pre-tax income, reducing taxable income in the contribution year, while Roth 401(k) contributions are made with after-tax dollars, meaning no upfront tax deduction but tax-free qualified withdrawals in retirement. Tax Implications at Contribution With a traditional 401(k), contributions lower the employee’s current taxable income. For example, an employee earning $80,000 who contributes $10,000 reduces their taxable income to $70,000. In contrast, Roth 401(k) contributions do not reduce taxable income, so the full $80,000 remains taxable in the year earned. Withdrawal Rules and Taxation Traditional 401(k) withdrawals are taxed as ordinary income during retirement. Roth 401(k) withdrawals are tax-free if the account has been held for at least five years and the individual is age 59½ or older. Both plans require minimum distributions starting at age 73 under current IRS rules, though Roth IRAs do not have RMDs during the owner’s lifetime. Both account types have the same contribution limits and employer matching rules, making the choice largely dependent on expected future tax rates.

401(k) Plans

What is a 401(k) plan?

What is the difference between a traditional 401(k) and a Roth 401(k)?