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What is a backdoor Roth IRA strategy?

Retirement & Investingintermediate3 answers · 5 min readUpdated February 28, 2026

Quick Answer

A backdoor Roth IRA lets high earners contribute to a Roth IRA by making a non-deductible traditional IRA contribution and immediately converting it. In 2026, single filers earning over $153,000 and married couples over $228,000 can use this strategy to bypass Roth IRA income limits.

Best Answer

RK

Robert Kim, Tax Return Analyst

Best for individuals earning over the Roth IRA contribution limits who want tax-free retirement growth

Top Answer

How the backdoor Roth IRA strategy works


A backdoor Roth IRA is a two-step process that allows high earners to contribute to a Roth IRA despite exceeding income limits. In 2026, direct Roth IRA contributions phase out for single filers earning $138,000-$153,000 and married filing jointly earning $218,000-$228,000.


The strategy works by exploiting a gap in tax law: while there are income limits for Roth IRA contributions, there are no income limits for converting traditional IRA funds to a Roth IRA.


Step-by-step backdoor Roth process


Step 1: Make a non-deductible contribution to a traditional IRA. In 2026, you can contribute up to $7,000 ($8,000 if age 50+) regardless of income level.


Step 2: Immediately convert the traditional IRA funds to a Roth IRA. Since you made a non-deductible contribution, there's minimal or no tax on the conversion.


Example: $200,000 earner using backdoor Roth


Sarah earns $200,000 as a single filer in 2026. She's above the $153,000 Roth IRA limit but wants tax-free retirement growth.


  • January: Sarah contributes $7,000 to a traditional IRA (non-deductible)
  • February: She converts the $7,000 to a Roth IRA
  • Tax impact: $0 in additional taxes (assuming no growth between contribution and conversion)
  • Result: $7,000 now grows tax-free in her Roth IRA

  • If Sarah's traditional IRA grows to $7,050 before conversion, she pays taxes on the $50 gain only.


    Key factors that affect backdoor Roth success


  • Existing traditional IRA balances: The "pro-rata rule" complicates backdoor Roth if you have pre-tax traditional IRA funds
  • Timing: Convert quickly after contribution to minimize taxable gains
  • State taxes: Some states don't recognize Roth conversions, creating additional complexity

  • The pro-rata rule trap


    This is where many people get caught. If you have existing traditional IRA funds with pre-tax dollars, the IRS requires you to convert proportionally from all accounts.


    Example: You have $93,000 in pre-tax traditional IRA funds and make a $7,000 non-deductible contribution (total: $100,000). When you convert $7,000:

  • 93% comes from pre-tax funds ($6,510 taxable)
  • 7% comes from non-deductible funds ($490 not taxable)

  • This significantly reduces the backdoor Roth benefit.


    What you should do


    1. Check for existing traditional IRA balances before attempting backdoor Roth

    2. Consider rolling old 401(k)s into your current employer's plan instead of an IRA to avoid pro-rata issues

    3. Execute the conversion within days of the contribution to minimize growth

    4. File Form 8606 to track your non-deductible IRA basis

    5. Use our return scanner to ensure you're not missing other high-earner strategies


    Key takeaway: Backdoor Roth IRAs let high earners contribute $7,000 annually to a Roth IRA regardless of income, but existing traditional IRA balances can complicate the strategy through the pro-rata rule.

    *Sources: [IRS Publication 590-A](https://www.irs.gov/pub/irs-pdf/p590a.pdf), [IRS Publication 590-B](https://www.irs.gov/pub/irs-pdf/p590b.pdf)*

    Key Takeaway: Backdoor Roth IRAs let high earners contribute $7,000 annually to a Roth IRA, but existing traditional IRA balances can create unexpected tax complications.

    2026 Roth IRA eligibility and backdoor Roth scenarios

    Filing StatusDirect Roth PhaseoutBackdoor Roth AvailableMaximum Contribution
    Single, income under $138,000Full eligibilityNot needed$7,000 ($8,000 if 50+)
    Single, income $138,000-$153,000Partial phaseoutYes, if desired$7,000 ($8,000 if 50+)
    Single, income over $153,000No direct eligibilityYes, recommended$7,000 ($8,000 if 50+)
    MFJ, income under $218,000Full eligibilityNot needed$7,000 each spouse
    MFJ, income $218,000-$228,000Partial phaseoutYes, if desired$7,000 each spouse
    MFJ, income over $228,000No direct eligibilityYes, recommended$7,000 each spouse

    More Perspectives

    MW

    Michelle Woodard, Tax Policy Analyst

    Best for people with complex retirement account situations who need to navigate the pro-rata rule

    Navigating backdoor Roth with existing accounts


    If you have existing traditional IRA, SEP-IRA, or SIMPLE IRA accounts, the backdoor Roth becomes more complex due to the pro-rata rule. The IRS treats all your traditional-style IRAs as one big account for conversion purposes.


    Strategic account consolidation


    Before executing a backdoor Roth, consider these moves:


    Rollover strategy: Move existing traditional IRA funds into your current employer's 401(k). Most plans accept rollovers, and this removes funds from the pro-rata calculation.


    Example: James has $45,000 in a traditional IRA from an old job and earns $180,000. Instead of a backdoor Roth:

    1. He rolls the $45,000 into his current 401(k)

    2. Now his traditional IRA balance is $0

    3. He can execute a clean backdoor Roth with no pro-rata complications


    Timing considerations for complex situations


    The pro-rata rule looks at your IRA balances on December 31st of the conversion year. This creates planning opportunities:


  • Late-year rollovers: You can have traditional IRA funds all year, roll them to a 401(k) in December, then convert your non-deductible contribution
  • Multiple conversions: If you can't eliminate all traditional IRA funds, spread conversions over multiple years to manage the tax impact

  • State tax complications


    Several states don't follow federal Roth conversion rules, creating additional complexity:

  • Non-conforming states: May tax the entire conversion regardless of your basis
  • Planning needed: Factor state taxes into your backdoor Roth decision

  • Key takeaway: Existing retirement accounts don't prevent backdoor Roth strategies, but they require careful planning and potentially rolling funds into employer plans first.

    Key Takeaway: Existing retirement accounts don't prevent backdoor Roth strategies, but they require careful planning and potentially rolling funds into employer plans first.

    RK

    Robert Kim, Tax Return Analyst

    Best for people in or near retirement who want to optimize their tax-free account balances

    Backdoor Roth for retirees and near-retirees


    Even in retirement, backdoor Roth conversions can be valuable for estate planning and tax diversification. Unlike regular IRA contributions, there's no age limit for backdoor Roth strategies.


    Estate planning benefits


    Roth IRAs have significant advantages for wealth transfer:

  • No required distributions during your lifetime
  • Tax-free growth continues for beneficiaries
  • Reduced taxable estate through paying conversion taxes now

  • Example: Margaret, 72, has $500,000 in traditional IRAs and takes required distributions. She also has $200,000 in taxable investments earning dividends. By using backdoor Roth ($7,000 annually) and regular Roth conversions, she gradually shifts wealth to tax-free accounts for her heirs.


    Managing retirement tax brackets


    Retirees often have lower tax brackets than their working years, making Roth conversions more attractive:


  • Gap years: Between retirement and Social Security/RMD start
  • Low-income years: When pension or other income drops temporarily
  • Medical expense years: When large medical deductions create unusually low taxable income

  • Coordination with other strategies


    Backdoor Roth fits into broader retirement tax planning:


    Qualified Charitable Distribution (QCD): Use QCDs from traditional IRAs to satisfy RMDs while keeping taxable income low for larger Roth conversions


    Health Savings Account maximization: If you're still eligible for HSA contributions, prioritize those over backdoor Roth for the triple tax advantage


    Key takeaway: Retirees can use backdoor Roth strategies indefinitely for estate planning, often at lower tax brackets than during their working years.

    Key Takeaway: Retirees can use backdoor Roth strategies indefinitely for estate planning, often at lower tax brackets than during their working years.

    Sources

    roth irabackdoor rothhigh incomeretirement planningtax strategy

    Reviewed by Robert Kim, Tax Return Analyst on February 28, 2026

    This content is for educational purposes only and is not a substitute for professional tax advice. Consult a qualified tax professional for advice specific to your situation.