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  1. 401 (k) plans - Internal Revenue Service

    Aug 26, 2025 · Learn about Internal Revenue Code 401 (k) retirement plans and the tax rules that apply to them.

  2. 401(k) Plans: What Are They, How They Work - Investopedia

    Dec 23, 2025 · What Is a 401 (k) Plan? A 401 (k) plan is a tax-advantaged retirement savings plan. Named after a section of the U.S. Internal Revenue Code, it is a defined-contribution plan typically …

  3. What Is A 401 (k)? A Beginner’s Guide – Forbes Advisor

    Nov 13, 2025 · What Is a 401 (k)? A 401 (k) is a voluntary—often employer-sponsored—retirement savings plan that lets you contribute a portion of your paycheck before or after it’s taxed.

  4. Fidelity 401 (k) retirement savings | Fidelity NetBenefits

    A 401 (k) is an employer-sponsored retirement savings plan with special tax benefits. This type of workplace savings plan has a lot of advantages—including a tax break and, sometimes, an employer …

  5. What is a 401(k) and How Does It Work? - Charles Schwab

    Feb 25, 2025 · What is a 401 (k) and How Does It Work? Learn how 401 (k) retirement plans work and get answers to questions on contribution limits, distributions, and more.

  6. Best 401(k) plans of 2025 - Bankrate

    Jan 6, 2025 · So businesses looking to establish a retirement plan for their employees should carefully consider which 401 (k) plan provider fits their needs in terms of cost, service and investment funds,...

  7. What Is a 401(k) and How Does It Work? | The Motley Fool

    Nov 19, 2025 · A 401 (k) is a retirement savings plan sponsored by employers. You fund the account with money from your paycheck and invest that money in the stock market, earning some tax perks …

  8. 401 (k) Plans | Definition, History, Costs, & Types

    Feb 12, 2025 · Read this complete guide on 401 (k) plans. This article includes a thorough definition of 401 (k)s, how they work, types, costs, and other relevant information.

  9. What is a 401(k)? | Fidelity

    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 401 (k) tax …

  10. 401 (k) Plan: What It Is and How It Works - NerdWallet

    What is a 401 (k) plan? A 401 (k) plan is an employer-sponsored retirement account that allows employees to contribute a portion of their paycheck to save for retirement.