Traditional vs. Roth vs. taxable: the tax map

By Tom, CPA · Updated October 27, 2026

Part of: Tax Planning

TL;DR: Traditional accounts give a deduction now and tax every withdrawal as ordinary income. Roth accounts give no deduction now but tax-free growth and withdrawals. Taxable accounts give no deduction, tax dividends yearly and tax gains only when you sell, at 0%, 15% or 20%, with a step-up at death. The winner depends mainly on your tax rate today versus in retirement, how early you need the money, and what you want heirs to inherit.

Educational only, not tax, legal, or investment advice. Examples are illustrations, not predictions. Rules and limits change; verify current figures and talk to a qualified professional about your situation.

Every dollar you invest ends up in one of three tax buckets. Traditional: pay tax later. Roth: pay tax now. Taxable: pay a little along the way, and possibly 0% at the end if you're clever. FIRE planners obsess over this choice, and for good reason: the bucket determines when the IRS gets its share and how much flexibility you have to control your tax bracket in early retirement.

This map covers every stage of a dollar's life using 2026 federal rules as of October 2026. For the head-to-head of the first two, see Roth vs. traditional. For the fourth bucket, see HSA vs. taxable vs. Roth.

CPA Warning Label: There is no universal winner. The traditional-vs-Roth decision is a bet on your future tax rate, and the best hedge is usually some money in all three buckets.

The map at a glance

Going in: 2026 limits and income rules

• 401(k), 403(b), most 457(b): $24,500 employee deferral, either traditional or Roth, plus $8,000 catch-up at 50 or older, or $11,250 at ages 60 to 63 (IRS).
• IRA: $7,500 plus $1,100 catch-up at 50 or older.
• Roth IRA income limits: phase-out from $153,000 to $168,000 single and $242,000 to $252,000 joint. Above that, a backdoor Roth may work; see the backdoor Roth guide.
• Traditional IRA deduction: if covered by a workplace plan, it phases out from $81,000 to $91,000 single and $129,000 to $149,000 joint.
• Roth catch-up rule: starting in 2026, people whose prior-year FICA wages exceeded the threshold ($150,000 for 2025 wages) must make 401(k) catch-ups as Roth (IRS Notice 2025-67).
• Taxable: no limits, no income rules.

While growing

Traditional and Roth accounts are tax-free while invested, so you can rebalance without tax. Taxable accounts pay tax each year on interest and dividends, which is called tax drag. Hold tax-efficient funds in taxable (broad index funds with mostly qualified dividends) and put bonds and REITs inside retirement accounts. Qualified dividends are taxed at 0% for joint taxable income up to $98,900 for 2026 ($49,450 single), so drag can be zero for lower-income households. See tax-efficient fund selection.

Coming out

• Traditional: every dollar is ordinary income, and raises AGI, which can affect Social Security taxation, Medicare IRMAA, ACA credits and the senior deduction phase-out.
• Roth: qualified distributions (after 59½ and five years since your first Roth IRA contribution) are tax-free and invisible to AGI. Contributions always come out first, tax- and penalty-free (Publication 590-B).
• Taxable: only the gain is taxed. Selling shares with high basis can produce very little income, and long-term gains may fall in the 0% bracket.

Early access for FIRE

Early retirees need money before 59½. Each bucket has paths:

• Taxable: the most flexible bridge, no rules at all.
• Roth IRA contributions: withdrawable anytime. Converted amounts can be withdrawn penalty-free after five years per conversion, which is the idea behind the Roth conversion ladder.
• Traditional: 72(t) substantially equal periodic payments, or the rule of 55 for 401(k)s if you separate from that employer in or after the year you turn 55. Otherwise the 10% additional tax applies, except for listed exceptions.

Illustration

Hypothetical: Alex has $10,000 of pre-tax salary to invest, is in the 22% bracket now, and expects 12% in retirement. Assume 7% annual growth for 25 years and no withdrawals until then.

Traditional wins here because Alex's rate drops from 22% to 12%. If Alex's retirement rate is also 22%, traditional and Roth tie at $42,334. If rates rise, Roth wins. The taxable account trails, but would match the Roth if Alex sells in the 0% gains bracket, and it beats both for access before 59½ and for heirs thanks to the step-up.

Bonus example: the 0% gains combo

Hypothetical number two, because one example is never enough for a spreadsheet goblin: Pat and Sam are married, retired at 52, file jointly and have no wages, pension or Social Security yet. For 2026 the standard deduction for joint filers is $32,200, and long-term gains and qualified dividends are taxed at 0% while taxable income stays at or under $98,900 (Rev. Proc. 2025-32).

Result: $131,100 of income for $780 of federal income tax, an effective rate under 0.6%. Because the deduction absorbs ordinary income first, the gains stack on top and still fit under the 0% line. One dollar more of gain and that dollar is taxed at 15%. This ignores state tax, ACA premium credits (this much income would blow way past the 400% cliff for a two-person household) and the 3.8% net investment income tax, which doesn't apply here because MAGI is under $250,000. It is also why keeping some money in each bucket gives you a steering wheel instead of a seat belt.

How each bucket touches benefits and phase-outs

The headline tax rate is only part of the story. Many benefits and deductions are based on AGI or MAGI, and each bucket hits those numbers differently:

• ACA premium credits: early retirees buying marketplace coverage lose the whole 2026 credit above 400% of the poverty line ($84,600 for a two-person household) now that the enhanced credits have expired. Roth withdrawals and taxable-account basis don't count as income; traditional withdrawals do.
• Medicare IRMAA: premiums rise when MAGI from two years earlier passes the thresholds ($109,000 single, $218,000 joint for 2026 premiums). Large traditional RMDs are a common trigger.
• Social Security taxation: up to 85% of benefits become taxable as other income rises. Roth withdrawals don't count toward that calculation.
• Senior deduction: the $6,000 deduction for those 65 and older (2025 through 2028) phases out above $75,000 single and $150,000 joint MAGI.
• 0% capital gains: traditional withdrawals fill the bracket first and can push taxable-account gains into the 15% rate.

The more of your money sits in traditional accounts, the less control you have over these numbers in retirement. That's the strongest argument for owning all three buckets.

Withdrawal order in retirement

The conventional order is taxable first, then traditional, then Roth, letting tax-advantaged accounts grow longest. Bracket-aware planning usually beats that:

1. Spend taxable assets and realize gains in the 0% bracket while income is low.
2. At the same time, fill the low brackets (10% and 12%) with traditional IRA withdrawals or Roth conversions, so RMDs are smaller later.
3. Use Roth money for spending spikes (a new roof, a big trip) that would otherwise push you into a higher bracket or over an ACA or IRMAA threshold.
4. Leave Roth assets for last and for heirs, since they grow tax-free and carry no lifetime RMDs.

Each year, ask which bucket's next dollar costs the least tax, counting the hidden rates above. The marginal tax rate calculator helps with that.

Heirs and estate

• Traditional: most non-spouse heirs must empty an inherited IRA within 10 years and pay income tax, often in their peak earning years. Leaving traditional IRA money to charity is efficient for that reason.
• Roth: the same 10-year rule for most heirs, but withdrawals are tax-free, which makes Roths great to inherit.
• Taxable: heirs get a basis stepped up to fair market value (Publication 551), wiping out unrealized gains.

The state tax angle

State taxes can tilt the choice. If you work in a high-tax state and plan to retire in a no-income-tax state, traditional contributions deduct at the high state rate now and come out state-tax-free later, and federal law (4 U.S.C. 114) generally stops your old state from taxing retirement income after you move. The reverse move favors Roth. Many states also exempt some retirement income, so check yours.

Rules of thumb

• High earner now, lower income later: lean traditional, then convert to Roth in low-income years; see Roth conversion planning.
• Early career or low bracket: lean Roth. A custodial Roth is even better for kids with earned income.
• Retiring early: build a taxable bridge alongside retirement accounts.
• Uncertain: split contributions. Tax diversification lets you choose which bucket to tap each year to manage your bracket.
• Always: get the full employer match first, whatever the bucket.

Rental income and real estate fit mainly in the taxable bucket; see what rental income is taxable. More tools on the calculators page.