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IRAs: Traditional vs Roth, conversions and the backdoor Roth

An IRA is a retirement account you open yourself, at a bank or brokerage, not through work. Here's how Traditional and Roth IRAs work in 2026, how much you can put in, and how conversions and the "backdoor" Roth work, from the IRS rules.

Key facts for 2026

  1. Limit: $7,500 across all your IRAs ($8,600 at 50+), or your taxable pay if less.
  2. Traditional: maybe a deduction now, taxed when you take it out. Roth: no deduction, qualified withdrawals tax-free.
  3. Roth income limit: $153,000 to $168,000 single, $242,000 to $252,000 married filing jointly.
  4. Deadline for 2026 money: your tax filing due date, April 15, 2027 for most people. Extensions don't count.

Traditional vs Roth IRA at a glance

Traditional IRARoth IRA
Tax breakMay be deductible now. The deduction can shrink if you or your spouse have a workplace plan (table below).None now.
Taking money outTaxed as income.Qualified withdrawals are tax-free: after 5 years and age 59½ (or disability, death, or up to $10,000 for a first home).
Income limit to put money inNone.Cut between $153,000 and $168,000 (single), $242,000 and $252,000 (married filing jointly).
Required withdrawalsYes, starting at age 73.None while you're alive.
Before 59½10% extra tax on most withdrawals, unless an exception applies.Your own contributions come out first, with no tax. Earnings can be taxed and hit with the 10%.

Sources: IRS Roth IRAs, Pub. 590-A, Pub. 590-B, IR-2025-111.

Roth IRA: how much can I put in for 2026?

$4,000

you can put in a Roth IRA for 2026

Limit before the income test

$7,500

Cut starts at

$153,000

Cut by income

$3,500

Your income is inside the phase-out range, so your limit is cut.

Show the math
  • Your limit before the income test: $7,500
  • Income range for your filing status: $153,000 to $168,000
  • How far into the range: ($160,000 − $153,000) ÷ $15,000 = 0.467
  • Cut: $7,500 × 0.467 = $3,502.5; $7,500 − $3,502.5, rounded up to the next $10 (at least $200) = $4,000
  • You can put in: $4,000
More options

Your IRA limit can't be more than your taxable pay (a spouse with no pay can use a joint return's pay). Money you put in a traditional IRA for 2026 comes off your Roth limit. Married filing separately but lived apart all year? Choose Single. Qualifying surviving spouse? Choose Married filing jointly.

Traditional IRA deduction limits for 2026

If you (or your spouse) have a retirement plan at work, the deduction shrinks inside these income ranges and ends above them. With no workplace plan on either side, it's fully deductible.

Who2026 phase-out range (modified AGI)
Single or head of household, covered by a workplace plan$81,000 to $91,000
Married filing jointly, contributing spouse covered by a workplace plan$129,000 to $149,000
Not covered, but married (filing jointly) to someone who is covered$242,000 to $252,000
Married filing separately, covered by a workplace plan$0 to $10,000

Source: IRS IR-2025-111: 2026 401(k) and IRA limits (Nov. 13, 2025).

Roth conversions

See what a conversion would add to your 2026 tax.

The "backdoor" Roth, step by step

The IRS doesn't use this name. It means two steps that are each allowed on their own, used when income is above the Roth limit:

  1. Put after-tax (nondeductible) money in a traditional IRA, and report it on Form 8606.
  2. Convert that traditional IRA to a Roth IRA.
  3. Watch the pro-rata rule. If you have other pre-tax money in any traditional, SEP or SIMPLE IRA, part of the conversion is taxable. Form 8606 compares your after-tax money to the value of all those IRAs on Dec. 31 plus the conversion (Form 8606). IRS example: $2,300 after-tax, $20,000 left on Dec. 31, $5,000 converted: $460 is tax-free and $4,540 is taxable.
  4. File Form 8606 with your return for the year.

This explains how the rules work. It is not a recommendation to do it.

Married with one paycheck?

A spouse with little or no pay can still have an IRA if you file a joint return; the limit uses your combined pay (the Kay Bailey Hutchison spousal IRA rule, Pub. 590-A).

We checked this against the IRS's own examples

IRS exampleIRS saysThis page's math
Pub. 590-A Worksheet 2-2 (2025 rules): single, modified AGI $151,000, $7,000 limit$6,540$6,540
Pub. 590-B Worksheet 1-1, Rose: $2,300 after-tax basis, $20,000 left on Dec. 31, $5,000 converted$460 tax-free, $4,540 taxable$460 tax-free, $4,540 taxable

The Pub. 590-A text calls the result $6,530, but its own filled-in worksheet shows $6,540, which is what the worksheet steps give.

Sources

Education only, not investment, tax or legal advice. We show IRS rules and do math on the numbers you type; we don't tell you what to buy or which account to pick. Your plan's own rules (its summary plan description) can be stricter. No company pays to be on this page, and there are no partner links.

FAQ

How much can I put in an IRA for 2026?

$7,500 in total across all your traditional and Roth IRAs, or $8,600 if you're 50 or older, but not more than your taxable pay (IRS IR-2025-111).

What are the 2026 Roth IRA income limits?

The amount you can put in shrinks between $153,000 and $168,000 of modified AGI for single filers and heads of household, and between $242,000 and $252,000 for married couples filing jointly.

Can I undo a Roth conversion?

No. Conversions made in tax years after 2017 can't be recharacterized back to a traditional IRA (IRS Pub. 590-A).

Estimates, not financial advice. Taxes, insurance, PMI and fees vary by lender, county and city; confirm with your lender, dealer and state agency before acting.