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◈ Finance & Economics·2 min·Updated Mar 10, 2026

What is 401(k)?

401(k) Retirement Savings Plan

Quick Answer

A 401(k) is a retirement savings plan sponsored by an employer that allows employees to save a portion of their paycheck before taxes are taken out. This type of account helps individuals save for retirement while benefiting from tax advantages.

Overview

A 401(k) is a retirement savings plan that many employers offer to their employees. It allows workers to contribute a portion of their salary to the plan before taxes are deducted, which can help them save more for retirement. The money in a 401(k) grows tax-deferred, meaning you don’t pay taxes on it until you withdraw it, usually in retirement. When you participate in a 401(k), your employer may also contribute to your account, often matching a percentage of what you put in. For example, if you contribute 5% of your salary, your employer might match that with an additional 3%. This matching contribution is essentially free money that can significantly boost your retirement savings over time. Understanding how a 401(k) works is crucial for personal finance because it encourages individuals to save for their future. By starting to contribute early, even small amounts can grow into a substantial nest egg due to compound interest. This makes a 401(k) an important tool for achieving financial security in retirement.

Frequently Asked Questions

The contribution limits for a 401(k) can vary each year, but as of 2023, employees can contribute up to $22,500 annually. If you are 50 or older, you can make additional catch-up contributions, allowing you to save even more.
Yes, you can withdraw money from your 401(k) before retirement, but it often comes with penalties and taxes. Generally, if you take money out before age 59½, you may face a 10% early withdrawal penalty on top of regular income taxes.
If you change jobs, you have several options for your 401(k). You can leave it with your former employer, roll it over to a new employer's plan, or transfer it to an individual retirement account (IRA) to continue growing your savings.