Net Worth

$385KTop 42%

PeakWorth

$4.2M+$182K

FI Age

50y 1m-11mo

2 min

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Investing Decision

Which Retirement Accounts Should You Fund First?

It's not just how much you save — it's where you save it. PeakWorth models the match-first contribution stack against your tax bracket and shows why the right sequence is worth $500K+ over a career, ranked by FI-Age impact rather than rule of thumb.

Key facts

Modeled value of the right account order

$500K+ per career

401(k) limit 2026

$24,000

IRA limit 2026

$7,500

Mega backdoor max

Up to $70K total 401(k) (2026)

A contribution order that fits most situations

1) 401(k) up to employer match. 2) HSA if eligible. 3) Roth IRA (or Backdoor Roth if income too high). 4) Max 401(k). 5) Mega Backdoor Roth if your plan allows. 6) 529 for kids. 7) Taxable brokerage.

Skipping the match is leaving the highest guaranteed return in personal finance on the table. Do not skip step 1.

Traditional vs Roth — the lifetime view

Traditional saves taxes today at your marginal rate; Roth saves taxes in retirement at your future rate. If you expect to retire in a similar or higher bracket, Roth wins. If you expect a much lower retirement bracket, Traditional wins. Most high earners benefit from a mix.

Backdoor and mega backdoor Roth

Income too high for direct Roth IRA contributions? Backdoor Roth: contribute to Traditional IRA, convert to Roth (watch the pro-rata rule). Mega Backdoor Roth: if your 401(k) allows after-tax contributions + in-plan conversions, you can shelter $30K+/yr beyond normal limits.

How PeakWorth ranks your account stack

PeakWorth runs each contribution dollar through the account that captures the most after-tax value first — employer match, then HSA, then Roth/Backdoor Roth, then maxed 401(k), then taxable — applying your real marginal rate and projecting tax-free vs tax-deferred growth to age 95.

Because it models the lifetime tax difference rather than a flat rule, the same savings can land $500K+ apart depending on order. PeakWorth reports the FI-Age and PeakWorth (highest projected lifetime net worth) for your stack, so 'Roth or Traditional?' is answered for your bracket, not in the abstract.

Personalized to YOU

See exactly how this changes YOUR PeakWorth™ and FI Age

Generic articles can only go so far. PeakWorth runs every scenario against your real income, expenses, and goals — so you see the dollar-and-year impact of every decision before you make it.

Run it through PeakWorth

Frequently asked questions

Should I do Traditional or Roth 401(k)?

If your current bracket is 22% or below, lean Roth. 32%+, lean Traditional. 24% — a mix is fine.

What's the mega backdoor Roth?

After-tax 401(k) contributions converted to Roth, allowing $30K+ extra Roth savings/yr if your plan allows.

Should I roll my old 401(k) to an IRA?

Often yes — for better fund options and lower fees. But check if it blocks future Backdoor Roth (pro-rata rule).

What order should I fund my retirement accounts in?

Match first, then HSA, then Roth IRA (or Backdoor Roth), then max the 401(k), then mega backdoor if available, then taxable. PeakWorth ranks this stack for your tax bracket and shows the FI-Age difference — skipping the match alone forfeits the highest guaranteed return in personal finance.

How much does the right account order actually matter?

A lot — the same contributions can differ by $500K+ over a career purely on tax treatment and asset location. PeakWorth models the lifetime tax impact of each account so you can see the dollars and the FI-Age shift, not just follow a generic list.

If you liked this, keep exploring

Calculators, true-cost pages, and audience playbooks across the PeakWorth network.

Ready to model this against your real numbers?

PeakWorth is the financial decision engine for households — your Personal Financial Strategy OS, a real-time engine that calculates every decision's impact on your future. The Decision Hub, an AI advisor, and a live projection that show you exactly how each move shapes your wealth and your FI Age.