The question isn’t which IRA is better — it’s which tax treatment fits your current income, your expected retirement income, and whether you’ll be navigating means-tested benefits like Medicare or Social Security in retirement. Both are legitimate retirement account options; they just tax your money at different times and have very different effects on your retirement benefits.

What each account is designed for:

  • Traditional IRA is designed for people who want a tax deduction now and are willing to pay taxes on withdrawals later (and accept that those withdrawals count as income for Medicare premiums, Social Security taxation, and other means-tested programs)
  • Roth IRA is designed for people who want to pay taxes now in exchange for tax-free withdrawals in retirement that don’t count toward income thresholds

Neither is universally “better.” The right choice depends on your tax bracket today versus your expected tax bracket in retirement — and whether you’ll be close to income thresholds that trigger benefit surcharges or clawbacks. No one actually knows what tax rates will be in 30 years.

At a glance

FeatureTraditional IRARoth IRA
2024 contribution limit$7,000 ($8,000 if 50+)$7,000 ($8,000 if 50+)
Tax treatment of contributionsTax-deductible (if eligible)After-tax (no deduction)
Tax treatment of growthTax-deferredTax-free
Tax treatment of withdrawalsTaxed as ordinary incomeTax-free (if qualified)
Counts as income for Medicare IRMAA?Yes — can trigger premium surchargesNo
Counts as income for Social Security taxation?Yes — can make benefits taxableNo
Required minimum distributions (RMDs)Yes, starting at age 73None during your lifetime
Income limitsPhase-out on deduction if covered by workplace planPhase-out on contributions starting at $146k single, $230k married
Early withdrawal flexibility10% penalty + income tax on everythingContributions out anytime; earnings penalized if under 59½
Designed forPeople who want tax break now; expect lower tax bracket in retirementPeople who expect higher tax bracket in retirement or want to avoid means-tested benefit impacts

Traditional IRA — designed for current-year tax deductions

A Traditional IRA lets you contribute pre-tax dollars (up to $7,000 in 2024, or $8,000 if you’re 50+), which means you can deduct the contribution from your taxable income in the year you make it — if you’re eligible. Your investments grow tax-deferred, meaning you don’t pay taxes on gains each year. When you withdraw in retirement, you pay ordinary income tax on everything.

The IRS requires you to start taking required minimum distributions (RMDs) at age 73. If you don’t, the penalty is 25% of the amount you should have withdrawn (10% if you correct it quickly). RMDs are calculated based on IRS life expectancy tables and your account balance.

Strengths:

  • Immediate tax deduction reduces your taxable income the year you contribute (if you qualify)
  • Tax-deferred growth means no annual tax on dividends, interest, or capital gains inside the account
  • Useful if you expect to be in a lower tax bracket in retirement than you are now

Weaknesses:

  • You pay ordinary income tax on all withdrawals — even if the gains came from long-term capital appreciation
  • RMDs force withdrawals starting at 73, which can push you into a higher tax bracket or trigger Medicare premium surcharges
  • Withdrawals count as income for means-tested benefit calculations (see section below)
  • Early withdrawal before 59½ triggers 10% penalty plus income tax (exceptions exist for disability, certain medical expenses, first-time homebuyer up to $10,000 lifetime)
  • If you’re covered by a workplace retirement plan and earn over $77,000 (single) or $123,000 (married filing jointly), your deduction phases out

Designed for: People who want to lower their current-year tax bill and expect their income — and therefore their tax bracket — to be lower in retirement. Also useful for high earners who are phased out of Roth contributions and want any tax-advantaged space.

I opened my first IRA in 2018 with $200 and chose Traditional for the deduction that year. I was 28 and didn’t think much about RMDs or Medicare premium surcharges. Now I understand that decision locked in a future tax bill and potential benefit impacts I can’t predict.

how to open an ira

Roth IRA — designed for tax-free growth

A Roth IRA works in reverse: you contribute after-tax dollars (money you’ve already paid income tax on), those dollars grow tax-free, and you withdraw tax-free in retirement if you’re 59½ or older and the account has been open for at least five years.

There are no RMDs during your lifetime, which means the money can stay invested as long as you want. You can also withdraw your contributions (but not earnings) at any time without penalty or taxes, which gives you more flexibility if you need emergency cash before retirement.

Strengths:

  • Tax-free withdrawals in retirement if you meet the 5-year rule and age requirement
  • Withdrawals don’t count as income for Medicare IRMAA calculations, Social Security benefit taxation, or ACA subsidy eligibility
  • No required minimum distributions — money can grow untouched for your entire life
  • Contributions (but not earnings) can be withdrawn anytime without taxes or penalties
  • Useful if you expect to be in a higher tax bracket in retirement or if tax rates rise

Weaknesses:

  • No immediate tax deduction — you’re paying taxes on the full contribution amount now
  • Contribution phase-out begins at $146,000 (single) or $230,000 (married filing jointly) in 2024; completely phased out at $161,000 / $240,000
  • Earnings withdrawn before 59½ are subject to 10% penalty plus income tax unless you qualify for an exception
  • You’re betting that tax rates will be higher later — if they fall, you gave up a deduction for no benefit

Designed for: People early in their careers who expect higher income (and higher tax brackets) later, people who want tax-free withdrawals and no RMDs, people who want to avoid means-tested benefit impacts in retirement, and people who want flexibility to access contributions before retirement if necessary.

The 5-year rule matters: even if you’re over 59½, if you opened the Roth less than five years ago, earnings withdrawals may be taxed. This catches people who open a Roth late in life.

roth ira early withdrawal rules explained

The hidden cost of Traditional IRA withdrawals: means-tested benefits

This is the part most Traditional vs. Roth comparisons skip: Traditional IRA withdrawals (including forced RMDs) count as income for federal benefit calculations. That includes Medicare premium surcharges (IRMAA), Social Security benefit taxation, and if you retire before 65, Affordable Care Act subsidy eligibility.

Medicare IRMAA (Income-Related Monthly Adjustment Amount): If your modified adjusted gross income exceeds certain thresholds, you pay more for Medicare Part B and Part D. In 2024, a single filer with income over $103,000 pays an extra $69.90/month for Part B. Over $161,000, that jumps to $174.70/month extra. Over $500,000, it’s $419.30/month extra — nearly $5,000/year in added premiums.

A $100,000 RMD from your Traditional IRA counts toward that threshold. If that RMD pushes you from $98,000 to $198,000 in income for the year, you’ve just triggered roughly $2,100 in additional Medicare premiums. That’s a hidden 2.1% tax on your withdrawal on top of ordinary income tax.

Social Security benefit taxation: Between $25,000–$34,000 of income (single) or $32,000–$44,000 (married), up to 50% of your Social Security benefits become taxable. Above those thresholds, up to 85% of your benefits are taxable. Traditional IRA withdrawals push you toward those thresholds. Social Security Administration tracks this as combined income: your adjusted gross income + nontaxable interest + half of your Social Security benefits.

A $30,000 Traditional IRA withdrawal can make $15,000 of your Social Security benefits newly taxable. At a 22% marginal rate, that’s $3,300 in extra taxes — an effective 11% surtax on your IRA withdrawal.

Roth IRA withdrawals avoid all of this. They don’t count as income for IRMAA, Social Security taxation, or ACA subsidy calculations. For someone expecting $50,000–$150,000 in retirement income, this can flip the entire Traditional vs. Roth calculation — the “tax savings” from the Traditional deduction today get wiped out by benefit surcharges later.

I didn’t know any of this when I opened my Traditional IRA in 2018. I looked at tax brackets. I didn’t look at what happens when you’re 74 and the IRS forces you to withdraw $40,000 you don’t need, pushing you into a higher Medicare premium tier.

Backdoor Roth: the workaround for high earners

If you earn above the Roth IRA contribution phase-out ($146,000 single, $230,000 married filing jointly in 2024), you’re locked out of direct Roth contributions. But there’s a legal workaround called the backdoor Roth contribution.

How it works:

  1. Contribute to a non-deductible Traditional IRA (no income limit on contributions)
  2. Immediately convert that Traditional IRA to a Roth IRA (no income limit on conversions)
  3. Pay taxes on any earnings between contribution and conversion (usually $0 if you convert immediately)
  4. Your money is now in a Roth, growing tax-free

The catch — the pro-rata rule: If you have any pre-tax money in Traditional, SEP, or SIMPLE IRAs, the IRS treats your conversion as coming proportionally from pre-tax and after-tax money. If you have $95,000 in a pre-tax Traditional IRA and you contribute $5,000 to a non-deductible Traditional and then convert that $5,000, the IRS says 95% of your conversion is taxable (because 95% of your total IRA balance is pre-tax). You’ll owe taxes on $4,750 of the conversion.

Mega Backdoor Roth (if your 401k allows it): Some employer 401(k) plans allow after-tax contributions beyond the $23,000 regular limit (up to $69,000 total including employer match in 2024). You can contribute after-tax dollars to your 401(k), then immediately roll them into a Roth IRA or Roth 401(k). This is a separate strategy from the backdoor Roth IRA, and most plans don’t offer it — you’ll need to check with your plan administrator.

I have a friend who earned $180,000 in 2023 and couldn’t contribute directly to a Roth. She did a backdoor Roth contribution in January 2024 — contributed $7,000 to a non-deductible Traditional, converted it to Roth three days later, paid tax on $4 of growth, and now has $7,000 growing tax-free. The process took 20 minutes and one phone call to her brokerage.

backdoor roth guide

Concrete scenarios: Which IRA wins for your income level

Stop thinking in abstract tax brackets. Here are concrete income scenarios where one account usually makes more sense than the other.

Scenario 1: You earn $55,000 now, expect $45,000/year in retirement

  • Winner: Traditional IRA
  • You’re in the 22% bracket now (single filer). In retirement, $45,000 puts you in the 12% bracket. You save 22% today, pay 12% later. That’s a 10-percentage-point win.
  • Your income in retirement is low enough that Medicare IRMAA and Social Security benefit taxation are unlikely to hit you hard.

Scenario 2: You earn $60,000 now, plan to have $80,000/year in retirement (from portfolio income, rental properties, or part-time work)

  • Winner: Roth IRA
  • You’re in the 22% bracket now. In retirement, $80,000 puts you in the 22% bracket or higher. You pay 22% today, avoid 22%+ later. Breakeven at best, but Roth wins on RMD flexibility and means-tested benefit avoidance.

Scenario 3: You earn $150,000, phased out of Roth contributions

  • Winner: Backdoor Roth (if no existing pre-tax IRA balances)
  • You can’t contribute directly to a Roth. Backdoor Roth lets you get $7,000 into tax-free growth. Traditional IRA won’t give you a deduction at this income if you have a workplace plan, so it’s a bad deal.

Scenario 4: You’re 28, earn $48,000, expect income to grow significantly

  • Winner: Roth IRA
  • You’re in the 22% bracket now, but you expect to be in the 24% or 32% bracket later. You’re also decades away from RMDs and means-tested benefits, so locking in tax-free growth now hedges against future tax rate increases.

Scenario 5: You’re 55, earn $120,000, retiring at 62 with $65,000/year income

  • Toss-up: Consider splitting contributions
  • You’re close to retirement, so fewer compounding years. Traditional gives you the deduction now (if eligible), Roth protects against means-tested benefit impacts later. Splitting lets you control your taxable income in retirement by choosing which account to withdraw from each year.

These aren’t predictions. They’re frameworks. Your actual retirement income depends on Social Security timing, whether you work part-time, what happens to your portfolio, and a dozen other variables I can’t see. But if you can estimate your retirement spending, you can make a better-informed guess.

ira vs 401k which to fund first

Side-by-side: Tax treatment over time

Here’s the fundamental difference. With a Traditional IRA, you avoid taxes on $7,000 of income today. If you’re in the 22% federal tax bracket, that’s a $1,540 reduction in your tax bill this year. But when you withdraw $50,000 in retirement, you’ll pay ordinary income tax on all $50,000 at whatever your tax rate is then — and that $50,000 counts as income for Medicare premium calculations and Social Security benefit taxation.

With a Roth IRA, you pay taxes on the full $7,000 today (so if you’re in the 22% bracket, you paid $1,540 in taxes on that money already). But when you withdraw $50,000 in retirement, you owe $0 in federal income tax, $0 in Medicare IRMAA surcharges, and it doesn’t push any of your Social Security benefits into taxable territory.

Which is better depends on whether your tax rate is higher now or later — and whether those withdrawals will trigger hidden costs in means-tested benefits. No one knows. Tax law has changed six times in the last 20 years. Experts disagree on where rates are headed.

Side-by-side: Withdrawal flexibility and RMDs

Traditional IRA locks your money until 59½ with few exceptions. If you withdraw early, you pay a 10% penalty plus income tax. At 73, RMDs kick in — the IRS forces you to withdraw a percentage of your balance each year based on life expectancy tables. If your balance is $500,000 at 73, your first RMD might be around $18,868 (this is taxable income). If you’re still working or have other income, that RMD can push you into a higher bracket or trigger Medicare premium surcharges.

Roth IRA lets you pull out contributions anytime, tax- and penalty-free. (Earnings are a different story — those are locked until 59½ unless you qualify for an exception.) No RMDs means you control the timing. If you don’t need the money, it keeps growing tax-free. If you do need it, you take it without a tax bill or benefit impact.

The flexibility difference matters if you retire early, lose your job, or face a large unexpected expense before 59½.

traditional ira withdrawal rules explained

Side-by-side: Income limits and eligibility

Both IRAs have a $7,000 contribution limit in 2024 ($8,000 if you’re 50 or older). But income affects whether you can deduct a Traditional contribution or contribute to a Roth at all.

Traditional IRA deduction phase-out (if you’re covered by a workplace retirement plan):

  • Single: $77,000–$87,000
  • Married filing jointly: $123,000–$143,000

If you earn above the phase-out range and you’re covered by a 401(k) or similar plan at work, you can still contribute to a Traditional IRA — but you won’t get a tax deduction. That’s usually a bad deal; you’d pay taxes now and again at withdrawal.

Roth IRA contribution phase-out:

  • Single: $146,000–$161,000
  • Married filing jointly: $230,000–$240,000

High earners who are phased out of Roth contributions can use the backdoor Roth strategy (see section above). This works if you don’t have other pre-tax IRA balances. If you do, the pro-rata rule applies and part of your conversion will be taxable. I’ve seen people get surprised by a $3,000 tax bill because they forgot about an old rollover IRA.

Which IRA should I choose?

This is a decision framework, not a recommendation. Your situation is specific to your income, timeline, expected retirement income, and expectations about future tax law — all of which I don’t know and can’t predict.

Consider Traditional if:

  • You want an immediate tax deduction to lower this year’s taxable income
  • You’re in a high tax bracket now and expect to be in a lower one in retirement (common for people near peak earning years who will have lower income after retiring)
  • Your expected retirement income is low enough that Medicare IRMAA and Social Security benefit taxation thresholds won’t affect you
  • You’re not covered by a workplace plan, so the deduction isn’t phased out
  • You’re okay with RMDs starting at 73

Consider Roth if:

  • You’re early in your career and expect your income (and tax bracket) to rise over time
  • You expect retirement income high enough to trigger Medicare IRMAA surcharges or Social Security benefit taxation
  • You want tax-free withdrawals in retirement and no RMDs
  • You value the flexibility to withdraw contributions before retirement if needed
  • You expect tax rates to be higher in the future (or you want to hedge against that possibility)

Consider backdoor Roth if:

  • You earn above the Roth contribution phase-out limits
  • You don’t have existing pre-tax IRA balances (or you’re willing to deal with the pro-rata rule)
  • You want tax-free growth and are willing to pay taxes now

Consider both (split contributions) if:

  • You’re uncertain about future tax rates and want to diversify your tax exposure
  • You want some money accessible (Roth contributions) and some tax-deferred (Traditional)
  • You’re close to retirement and want flexibility to manage your taxable income year-by-year

Consider consulting a tax professional if:

  • You’re self-employed and also considering a SEP-IRA or Solo 401(k)
  • You have a complex tax situation (multiple income sources, rental properties, etc.)
  • You’re considering a backdoor Roth and have existing pre-tax IRA balances
  • You’re near Medicare enrollment age and want to model IRMAA impact

I can’t tell you which to choose. I can tell you what each one does, what the risks are, and what the hidden costs are. The rest depends on variables I don’t control and can’t predict.

FAQ

Can I contribute to both a Roth and Traditional IRA in the same year?

Yes, but the $7,000 limit (or $8,000 if you’re 50+) applies to your combined contributions across both accounts. If you put $4,000 in a Roth, you can only put $3,000 in a Traditional that year.

Can I convert a Traditional IRA to a Roth IRA?

Yes. This is called a Roth conversion. You’ll pay ordinary income tax on the amount you convert in the year you convert it. There’s no income limit on conversions, which is why high earners use the “backdoor Roth” strategy. Be aware of the pro-rata rule if you have both pre-tax and after-tax IRA balances.

Do I pay taxes on Roth IRA withdrawals in retirement?

No, as long as you’re 59½ or older and the account has been open for at least five years. If you’re younger than 59½ or the account is newer than five years, earnings withdrawals may be taxed and penalized. Contributions can always be withdrawn tax- and penalty-free.

What happens to an IRA if I die?

It depends on who inherits it. A spouse can roll it into their own IRA. Non-spouse beneficiaries must withdraw the full balance within 10 years under SECURE 2.0 rules (with some exceptions for minor children and disabled individuals). Inherited Traditional IRAs are taxable to beneficiaries; inherited Roth IRAs are tax-free if the 5-year rule was met.

Can I withdraw from an IRA before 59½ without penalty?

Yes, under specific exceptions: disability, certain medical expenses exceeding 7.5% of your adjusted gross income, first-time home purchase (up to $10,000 lifetime), substantially equal periodic payments (SEPP). Roth IRA contributions (but not earnings) can be withdrawn anytime without penalty. All other early withdrawals from Traditional IRAs incur a 10% penalty plus income tax.

What’s a backdoor Roth and can I do one?

A backdoor Roth is a workaround for high earners who are phased out of Roth contributions. You contribute to a non-deductible Traditional IRA (no income limit on contributions), then immediately convert it to a Roth (no income limit on conversions). You’ll owe taxes on any earnings between contribution and conversion, and if you have other pre-tax IRA balances, the pro-rata rule will make part of the conversion taxable. This strategy works best if you have no other Traditional, SEP, or SIMPLE IRA balances. See the backdoor Roth section above for details.

Do Traditional IRA withdrawals affect my Medicare premiums?

Yes. Traditional IRA withdrawals (including RMDs) count as income for Medicare IRMAA calculations. If your income exceeds certain thresholds, you’ll pay surcharges on Medicare Part B and Part D premiums — potentially thousands of dollars per year. Roth IRA withdrawals don’t count as income for IRMAA.

One more thing: whichever retirement account you choose, the actual investments inside the account matter more than the tax wrapper over a long enough timeline. how much should you save for retirement

This article is educational information, not financial or tax advice. Tax laws vary by jurisdiction and individual circumstances. Before making any IRA decision, consult a CPA or tax professional for your specific situation.