Personal Finance/FIRE

Tax-Advantaged Accounts: The Ultimate Hierarchy

Not all retirement accounts are created equal. Here's the optimal order for maximizing tax benefits over your career.

Every FIRE seeker faces the same question: where do I put my money first? The tax code offers dozens of vehicles—401k, Traditional IRA, Roth IRA, HSA, 529, etc.—but using them in the wrong order can cost you hundreds of thousands over a lifetime.

Here’s the order I use, and why.

The Hierarchy

1. Employer 401k Match (100% return on day one)

If your employer matches 50% up to 6%, that’s an instant 50% return. Always max this first.

Example: You earn $75k, contribute 6% ($4,500)
Employer adds: $2,250 (50% match)
Total: $6,750 into retirement on $4,500 of your money

2026 limit: $23,500 (+ $7,500 catch-up if 50+)

2. HSA (Triple Tax Advantage)

The only account with:

  • Tax-deductible contributions
  • Tax-free growth
  • Tax-free withdrawals for medical expenses

After 65, can withdraw for any reason ( taxed like traditional).

2026 limit: $4,300 individual / $8,550 family

3. Roth IRA

Post-tax contributions, tax-free growth, tax-free withdrawals in retirement. Best for:

  • Young earners (low tax bracket now)
  • Backdoor Roth conversions
  • Estate planning

2026 limit: $7,000 (+ $1,000 catch-up if 50+)

4. Mega Backdoor Roth (if available)

Some 401k plans allow after-tax contributions beyond the $23,500 limit, which can be rolled to Roth. This can add $40k+ annually in tax-free space.

5. Traditional 401k

Once you’ve exhausted the above, max your traditional 401k. Reduces current taxable income.

2026 limit: $23,500 employee + employer match

6. Taxable Brokerage

After all tax-advantaged options are maxed, taxable is fine. Low-cost index funds, tax-loss harvesting, long-term capital gains treatment.

My Current Allocation

AccountAnnual Contribution
401k (employee + match)$27,000
HSA$8,550
Roth IRA$7,000
Taxable$15,000

Total: $57,550/year on an $85k salary. 68% savings rate on gross income.

The Roth vs. Traditional Question

A simplified view:

  • Traditional: Better if tax rate now > tax rate in retirement
  • Roth: Better if tax rate now < tax rate in retirement

For most FIRE seekers, I recommend:

  • 20s-30s: Lean heavily into Roth (low bracket, time for growth)
  • 40s+: Traditional for tax rate arbitrage
  • Bridge years: Roth conversions when income dips

The goal is to pay the lowest lifetime tax bill, not just this year’s bill.