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    401Ks and IRAs: Your Retirement Account Guide

    Educational content only. This article is for informational purposes and does not constitute personalized financial, tax, or investment advice. Consult a qualified professional for guidance specific to your situation.

    TL;DR

    • Two flavors: Traditional (pre-tax, pay taxes later) and Roth (post-tax, tax-free growth)
    • 2025 limits: $23,500 for 401Ks, $7,000 for IRAs (plus catch-up contributions if age 50+)
    • Always capture the match first: Your employer's 401K match is an instant 100% return — never leave it on the table

    Retirement accounts come in several types, each with different tax benefits. Here's a simple breakdown of your options and how they work.

    The Big Picture: When You Pay Taxes

    When you contribute
    While it grows
    When you withdraw
    Traditional
    (pre-tax)
    No taxes now
    No taxes yet
    Pay taxes later
    Roth
    (post-tax)
    Pay taxes now
    No taxes
    No taxes

    Traditional 401K

    A Traditional 401K is offered by employers and lets you save money for retirement directly from your paycheck. The biggest advantage: you don't pay income tax on the money you contribute now.

    Key features:

    • Contributions reduce your taxable income this year
    • You'll pay taxes when you withdraw the money in retirement
    • 2025 contribution limit: $23,500 (excluding catch-up contributions for those age 50+)
    • 10% penalty if you withdraw before age 59½ (with some exceptions)
    • Many employers match your contributions (free money!)

    You can invest your 401K money in various funds. For most people, a target date fund is the simplest choice. See investment recommendations here.

    Roth 401K

    A Roth 401K works like a Traditional 401K, but with a key difference: you pay taxes on your contributions now, but pay no taxes when you withdraw the money in retirement.

    Key features:

    • Contributions are made with money you've already paid taxes on
    • Both your contributions and all growth are tax-free when withdrawn in retirement
    • Shares the same contribution limit as Traditional 401K: $23,500 in 2025
    • Generally better if you expect to be in a higher tax bracket in retirement

    Not all employers offer this option. If yours does, see our guide to choosing between Traditional and Roth.

    Traditional IRA

    A Traditional IRA (Individual Retirement Account) is something you open yourself, not through an employer. Like a Traditional 401K, you don't pay taxes on contributions now, but will pay taxes when you withdraw in retirement.

    While I generally don't recommend this as your primary retirement account, it's useful in two specific cases:

    • If you want to do a Backdoor Roth conversion (for higher-income earners)
    • To consolidate old 401K accounts from previous employers

    Roth IRA

    A Roth IRA is one of the most flexible and powerful retirement accounts available. You open it yourself (not through an employer), and it offers tax-free growth and withdrawals.

    Key features:

    • Contribute money you've already paid taxes on
    • All growth and qualified withdrawals are completely tax-free
    • 2025 contribution limit: $7,000 ($8,000 if over age 50)
    • You can withdraw your contributions (but not earnings) penalty-free at any time
    • Income limits: $146,000 for single filers, $230,000 for married filing jointly

    If your income is too high to contribute directly, you can still use the Backdoor Roth method. See our recommendations for where to open a Roth IRA.

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