Learn about Internal Revenue Code 401 (k) retirement plans and the tax rules that apply to them.

If your employer offers benefits through Fidelity, log in to Fidelity NetBenefits to see your 401 (k), 403 (b), health benefits, stock plans, and more.

Dec 23, 2025 · A 401 (k) plan is a company-sponsored retirement account in which employees can contribute a percentage of their income. Employers often offer to match at least some of …

In the United States, a 401 (k) plan is an employer-sponsored, defined-contribution, personal pension (savings) account, as defined in subsection 401 (k) of the U.S. Internal Revenue …

Nov 13, 2025 · A 401 (k) is an employer-sponsored retirement plan. Tax benefits and potential employer matching contributions make 401 (k)s a wonderful way to save for retirement.

Feb 25, 2025 · A 401 (k) is an employer-sponsored retirement plan that comes with tax benefits. Basically, you put money into the 401 (k) where it can be invested and potentially grow tax free …

Nov 4, 2024 · Learn about 401(k) plan benefits, contribution limits, and how to maximize your 401(k) in 2024 and 2025. Discover employer matches and tax advantages.

Dec 11, 2025 · A 401 (k) is a retirement savings plan that lets you invest a portion of each paycheck before taxes are deducted depending on the type of contributions made. Because of …

2026 and 2025 401(k) limits explained. A guide for HR and finance leaders to maximize contributions and meet fiduciary requirements.

What is a 401 (k) and how does it work? Explore different types of 401 (k) plans and learn employer contributions, tax benefits and withdrawal rules for retirement.