Named after a section of the U.S. Internal Revenue Code, a 401(k) plan allows you to set aside a portion of your salary and/or bonus on a tax-deferred basis. This money grows tax-free until you withdraw it, typically in retirement, at which point you'll usually pay taxes on the withdrawals. The main advantage of 401(k) plans over other retirement plans is their portability. You can usually take your funds with you if you change jobs. Also, many employers offer to match a portion of your contributions, essentially sweetening your pension pot.
Employers can offer various types of 401(k) plans to their employees:
1. Traditional 401(k) — This is the most common type. Contributions are made with pre-tax dollars, reducing your current taxable income. The money grows tax-deferred, and you pay taxes when you withdraw funds in retirement.
2. Roth 401(k) — Introduced in 2006, Roth 401(k)s have gained popularity. Contributions are made with after-tax dollars, so there's no immediate tax benefit. However, qualified withdrawals in retirement are tax-free, including any investment earnings.
3. SIMPLE 401(k) — These plans are designed for employees of small businesses with 100 or fewer employees. They typically have lower contribution limits for employees and mandatory employer contributions.
4. Safe Harbor 401(k) — These plans are designed to ensure fair treatment for all employees, regardless of their income level. They require employers to make mandatory contributions that belong to the employee immediately, without any waiting period.
It's worth noting that some employers offer both traditional and Roth 401(k) options. In such cases, you may be able to split your contributions between the two types, providing tax diversification in retirement.