Tax-Advantaged Accounts — Shelter Your Income Legally

The IRS gave you these accounts. Use them.

The Core Question: Pay Tax Now or Later?

Every tax-advantaged account gives you a tax break — the question is when. Pre-tax accounts (Traditional 401(k), IRA) give you the deduction now and tax you on withdrawal. After-tax accounts (Roth) give you no deduction now, but withdrawals in retirement are tax-free.

The math generally favors pre-tax if you're in a higher bracket now than you expect in retirement, and Roth if you're in a lower bracket now or expect tax rates to rise. When you're unsure, splitting between both hedges the bet.

Account-by-Account Breakdown (2025)

Tax treatment at contribution, during growth, and at withdrawal.

Account	Tax Now	Tax Later	2025 Limit	Best For
Traditional 401(k)	Pre-tax contributions	Withdrawals taxed as ordinary income	$23,500 ($31,000 age 50+)	High earners expecting a lower tax rate in retirement
Roth 401(k)	After-tax contributions	Withdrawals tax-free in retirement	$23,500 ($31,000 age 50+)	Younger earners or those expecting higher tax rates in retirement
Traditional IRA	Pre-tax (if income-eligible)	Withdrawals taxed as ordinary income	$7,000 ($8,000 age 50+)	No workplace 401(k), or high earners using backdoor Roth
Roth IRA	After-tax contributions	Withdrawals tax-free (including earnings)	$7,000 ($8,000 age 50+); phases out above $150K/$236K AGI	Those who expect higher rates later, or want flexible withdrawals
HSA	Pre-tax contributions	Tax-free for medical; ordinary income tax if non-medical after 65	$4,300 self-only / $8,550 family	Anyone on a High Deductible Health Plan — the only triple-tax account
529 Education Plan	After-tax (federal); some states give a deduction	Withdrawals tax-free for qualified education expenses	No annual limit (gift tax applies above $19,000/year)	Parents saving for college

Recommended Contribution Order

If you have limited dollars, prioritize in this order to maximize every tax advantage:

• 1. 401(k) up to employer match — free money first. Always capture the full employer match before doing anything else.
• 2. Max your HSA — triple tax advantage makes this the most powerful account per dollar, if you have an HDHP.
• 3. Max your Roth IRA (if eligible) — tax-free growth and no RMDs make it highly valuable. Income limit: $150K single / $236K MFJ.
• 4. Max your 401(k) — go back and max the full $23,500 contribution limit after IRA and HSA are fully funded.
• 5. Taxable brokerage account — once all tax-advantaged space is used, invest in a regular brokerage using tax-efficient ETFs.

Roth vs Traditional — the quick rule: in your 20s–30s at lower income, Roth usually wins since you're in a low bracket now. In peak earning years (40s–50s, higher bracket), Traditional is often better for the bigger deduction now. Unsure? Split it — many employers allow splitting 401(k) contributions between traditional and Roth. High income but want Roth? Use the backdoor Roth IRA strategy.

Key Terms

• Tax-Deferred: you don't pay tax on the money now — it grows inside the account without annual taxes, but you pay ordinary income tax when you withdraw in retirement. Traditional 401(k) and IRA are tax-deferred.
• Tax-Free Growth: earnings inside the account are never taxed as long as you follow the withdrawal rules. Roth accounts and HSAs (for medical expenses) offer tax-free growth.
• Backdoor Roth IRA: a strategy for high earners who exceed the Roth IRA income limit. Contribute to a non-deductible Traditional IRA, then convert it to a Roth. Legal and widely used, but watch the pro-rata rule if you have other IRA balances.
• RMDs (Required Minimum Distributions): the IRS requires you to start withdrawing from Traditional 401(k)s and IRAs at age 73. Roth IRAs have no RMDs during the owner's lifetime — a key advantage for estate planning.

Key Takeaways

• Pre-tax (Traditional): deduction now, taxed on withdrawal — best for high earners today.
• Roth: no deduction now, tax-free withdrawal — best for lower brackets or rising tax expectations.
• HSA: the only triple-tax-advantaged account — max it if you have an HDHP.
• Priority order: 401(k) match → HSA → Roth IRA → max 401(k) → taxable brokerage.
• Roth IRA has no RMDs — powerful for estate planning and flexible retirement income.
• High income and want Roth? Use the backdoor Roth IRA strategy.