Converting your entire IRA to Roth in one year could hand a huge chunk of it straight to the IRS. A conversion ladder does it in pieces, timed to avoid exactly that.
A Roth conversion ladder moves money from a traditional IRA into a Roth IRA in structured amounts over several years, typically during a lower-income window before RMDs begin. Because qualified Roth withdrawals are permanently tax-free, this reduces the balance subject to future RMDs — and can meaningfully lower lifetime tax liability.
Every dollar converted counts as taxable income in the year of the conversion. Convert a large IRA balance in one year, and a big chunk of it can spill into a much higher tax bracket than necessary — you'd be paying more tax on the conversion than you have to.
Illustrative 5-year ladder — filling a target bracket each year
Illustrative only. Actual bracket-filling amounts depend on your specific income, filing status, and current tax law.
Each year's conversion is sized specifically to fill up — but not overflow — a target tax bracket, so the whole strategy costs meaningfully less in total taxes than converting everything in one year.
The years between retirement and the start of RMDs are typically the most efficient window — other taxable income is often lower during this stretch, leaving more room in lower brackets to absorb conversions before hitting a higher rate.
One thing to watch: a conversion adds to your taxable income for the year, which can also affect Medicare IRMAA thresholds two years later — another reason conversion amounts are sized carefully rather than converted all at once.
Moving traditional IRA money to Roth in structured amounts over several years, typically before RMDs begin, reducing future RMDs and lifetime tax liability.
A single large conversion can push much of it into a higher bracket. Spreading it out lets each year's conversion fill a target bracket without spilling into the next.
The years between retirement and RMDs, when other taxable income is often lower, giving more room in lower brackets to absorb conversions.
Yes — a conversion adds to taxable income, which can push MAGI above an IRMAA threshold two years later. This is one reason conversion amounts are sized carefully.
A brief conversation can map out a conversion schedule sized to your actual tax situation.
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