IRA & 401(k) for Beginners: Retirement Planning 101

Starting your first job and being told to "sign up for the 401(k)" can feel intimidating if no one ever explained what that actually means. This guide covers the basics: why tax-advantaged retirement accounts matter, why an employer 401(k) match is essentially free money, how an IRA works, and a simple action plan for getting started if you have $0 saved for retirement today.

What Is a 401(k)?

A 401(k) is a workplace retirement account offered by many private-sector employers. A portion of your paycheck is automatically deferred into investments — either pre-tax (Traditional) or after-tax (Roth) — before you ever see the money. Contributions grow tax-deferred (or tax-free, for Roth) until you withdraw them in retirement. Public-sector employees typically have equivalent plans: a 403(b) for nonprofit and school employees, or a 457(b) for state and local government employees.

Step 1 — Always Capture the Full Employer Match First

• If your employer matches contributions (for example, 50% of what you contribute up to 6% of salary), that match is an immediate, guaranteed return on your money — before doing anything else, contribute at least enough to get the full match.
• Skipping the match is effectively turning down free money that would otherwise be added directly to your retirement account.
• Only after capturing the full match should you weigh other savings priorities.

Step 2 — Understand the IRA

An Individual Retirement Account (IRA) is a personal retirement account you open yourself, completely separate from any employer plan. In 2026, you can contribute up to $7,500 per year ($8,600 if you're age 50 or older) across your Traditional and Roth IRAs combined.

Traditional vs Roth — the Basic Difference

• Traditional 401(k)/IRA: contributions may lower your taxable income today; withdrawals in retirement are taxed as ordinary income.
• Roth 401(k)/IRA: contributions are made with after-tax dollars, so there's no upfront deduction — but qualified withdrawals in retirement, including all investment growth, are completely tax-free.
• Roth IRA contributions have income eligibility limits, and Traditional IRA deductibility phases out at higher income if you're also covered by a workplace plan.

A Simple Action Plan If You're Starting From $0

1. Sign up for your employer's 401(k) plan and contribute at least enough to capture the full employer match.
2. Open a Traditional or Roth IRA with a low-cost brokerage and set up automatic monthly contributions, even if the amount is small at first.
3. Increase your 401(k) contribution percentage gradually — for example, by 1% each year or whenever you get a raise.
4. If you're enrolled in a qualifying high-deductible health plan, consider adding an HSA as a third tax-advantaged savings vehicle.

Frequently Asked Questions

Do I have to choose between a 401(k) and an IRA? No — most people benefit from using both: contribute to the 401(k) up to the employer match first, then fund an IRA, then increase your 401(k) contributions further as your budget allows.

What if my employer doesn't offer a 401(k)? You can still open and contribute to an IRA entirely on your own through almost any brokerage, with no employer involvement required.