How Does a Roth Ladder Work for High Earners in 2026?

A Roth ladder is a multi-year sequence of annual conversions from a traditional IRA or 401(k) into a Roth IRA. Each conversion starts its own five-year aging clock, creating a pipeline of tax-free, penalty-free income. For high earners, it can reduce future Required Minimum Distributions and shift taxable income from higher-rate years to lower-rate ones.

What Exactly Is a Roth Ladder?

The strategy is not a single conversion. It is a deliberate series of annual conversions, each starting an independent five-year clock from January 1 of the conversion year. After five tax years, those converted dollars can be withdrawn free of the 10% early distribution penalty, even if you are under age 59½, because the tax was already paid at conversion.

Two separate five-year rules apply, and confusing them is one of the most common mistakes:

• Account-level rule: If you have never owned a Roth IRA, the account must be open for at least five tax years before any earnings can be withdrawn tax-free. This rule applies once per taxpayer and does not reset when you open new accounts.
• Conversion-level rule: Each individual conversion must age five tax years before the converted principal can be withdrawn penalty-free if you are under age 59½.

Once you reach age 59½, the per-conversion penalty rule no longer applies to conversion principal, but the account-level earnings rule still matters. This is why opening a Roth IRA as early as possible, even with a minimal balance, is strategically important. IRS Publication 590-B covers both clocks in full detail.

Roth conversions have no income limit. Even if you earn $800,000 per year, you can convert any amount from a traditional IRA to a Roth IRA in 2026.

How Do the 2026 Tax Brackets Shape Each Conversion?

The core mechanic of a roth ladder is bracket-filling. You calculate how much room remains in a target bracket after accounting for all other income, then convert up to that ceiling, not beyond it.

For 2026, the federal brackets most relevant to high earners filing married filing jointly are:

• 22% bracket: approximately $94,300 to $201,050 of taxable income
• 24% bracket: approximately $201,050 to $383,900
• 32% bracket: approximately $383,900 to $487,450
• 35% and 37% brackets apply above those thresholds

For single filers, these thresholds are roughly half the MFJ figures. Always verify current thresholds against the IRS annual Revenue Procedure before executing conversions. The Tax Foundation's 2026 bracket analysis provides useful independent modeling for comparison.

A high earner with $2 million in a traditional IRA who retires at age 60 faces a steep RMD schedule beginning at age 73. The IRS Uniform Lifetime Table divisor at age 73 is 27.4, meaning a $2 million balance generates a roughly $73,000 forced distribution in year one. Converting $150,000 to $200,000 per year during a lower-income window at 24% may be significantly more efficient than paying 32% or 37% on forced RMDs later.

What Does This Look Like in Practice?

Consider a 55-year-old planning to retire at 60 with $1.8 million in a traditional IRA and no existing Roth IRA. The goal is penalty-free, tax-free income at retirement while reducing future RMD exposure.

| Conversion Year | Amount Converted | Penalty-Free Access Year | Tax Rate Paid | |---|---|---|---| | 2026 | $180,000 | 2031 | 24% | | 2027 | $175,000 | 2032 | 24% | | 2028 | $165,000 | 2033 | 22% | | 2029 | $170,000 | 2034 | 24% | | 2030 | $160,000 | 2035 | 22% |

By retirement in 2031, the first rung is accessible. Each subsequent year, another rung matures. The traditional IRA balance has been reduced by roughly $850,000 over five years, directly shrinking the future RMD obligation. Kiplinger's guide to Roth conversion strategies walks through additional timing scenarios in more detail.

What Are the Biggest Mistakes High Earners Make?

Paying conversion taxes from inside the IRA. When you convert $200,000, the tax must be paid. If you satisfy that bill by withholding from the IRA itself, you permanently reduce the amount growing tax-free. Always pay conversion taxes from a separate taxable account.

Ignoring IRMAA. Medicare's Income-Related Monthly Adjustment Amount surcharges begin for individuals with Modified Adjusted Gross Income above $106,000 (single) or $212,000 (MFJ) in 2026. Each conversion adds to your MAGI. Jumping an IRMAA tier can cost a married couple $3,000 to $8,000 or more in additional Medicare premiums in a single year. Model the total cost, not just the marginal income tax rate. Current thresholds are available at Medicare.gov.

Skipping state tax analysis. Nine states impose no individual income tax, including Florida, Texas and Nevada. Taxpayers there pay only federal tax on conversions. California taxes Roth conversions as ordinary income at rates up to 13.3%. A $300,000 conversion in California in a high-income year could generate a combined federal and state bill of $105,000 or more, extending the break-even point significantly.

Overlooking the Net Investment Income Tax. Roth conversion income itself is not subject to the 3.8% NIIT, but it raises MAGI, which can pull existing investment income above the NIIT threshold of $200,000 (single) or $250,000 (MFJ). A large conversion could push capital gains into NIIT exposure unexpectedly.

Converting a round number instead of the bracket ceiling. The correct approach is to calculate all other income first, then determine the precise dollar amount you can convert before crossing into the next bracket or an IRMAA tier.

How Can Business Owners Get More Out of Each Rung?

Business owners have access to deductions that can engineer lower-income years, creating wider bracket windows for larger conversions. A solo 401(k) contribution, a Section 179 equipment deduction, accelerated depreciation, or a net operating loss carryforward can each reduce Adjusted Gross Income, creating room within lower brackets that can be filled with conversion income. Our team often sees the most effective roth ladder results from clients who coordinate these deductions intentionally rather than treating them as separate decisions.

Tax-loss harvesting works similarly. Harvesting $60,000 in capital losses in a given year can offset other income, effectively allowing a $60,000 larger conversion at the same net marginal rate. This works best when coordinated in November or early December, once annual income is predictable.

Pairing conversions with Donor-Advised Fund contributions is another lever. A DAF contribution reduces AGI directly, and contributing appreciated assets eliminates capital gains on the appreciation while generating a charitable deduction, freeing up additional bracket space for conversion in the same year.

For high earners who still hold traditional IRA balances at age 73, Qualified Charitable Distributions allow individuals age 70½ and older to transfer up to $105,000 per year directly from a traditional IRA to a qualified charity. The QCD satisfies the RMD obligation and does not appear in AGI, which keeps IRMAA thresholds and NIIT exposure lower.

A roth ladder also has meaningful estate planning implications. Under the SECURE 2.0 Act, non-spouse beneficiaries must empty an inherited traditional IRA within ten years, taking distributions at their own marginal rates. Heirs who inherit a Roth IRA instead take tax-free distributions over that same period.

For more on how conversions fit into a broader retirement income strategy, see our post on retirement tax planning for high earners. If you are also considering after-tax 401(k) contributions, our post on how a mega backdoor Roth setup works in 2026 covers a complementary strategy.

What Should You Do Before December 31, 2026?

Roth conversions must be completed within the tax year to count toward that year's five-year clock. There are no extensions. A few steps to take now:

• Pull current balances across all traditional IRAs, rollover IRAs, SEP IRAs and 401(k) accounts
• Calculate your 2026 income from all sources and identify remaining bracket space before the 32% threshold or the next IRMAA tier
• Open a Roth IRA immediately if you do not have one, even with a minimal balance, to start the account-level five-year clock
• Confirm conversion taxes will be paid from a separate taxable account, not withheld from the IRA
• Build or update a multi-year projection that accounts for brackets, IRMAA, NIIT, Social Security provisional income and state taxes

IRS Topic No. 557 explains how early distribution penalties interact with Roth conversions. For a broader look at strategies available to high earners this year, our post on how high earners can reduce taxes in 2026 is a useful starting point.