Roth Conversion Ladder: The Early Retirement Bridge, Step by Step
A Roth conversion ladder moves money from a traditional IRA to a Roth IRA one year at a time. Each converted amount can then come out without the 10% early-withdrawal tax five years later.
Early retirees use it to reach retirement money long before age 59 1/2. The strategy only works if you already have five years of spending saved elsewhere.
This guide walks through the five-year rule, a year-by-year schedule, the tax bill, and the alternatives.
Why early retirees need a bridge at all
Most retirement money sits in accounts you cannot touch early for free. The IRS charges a 10% additional tax on most distributions taken before age 59 1/2. That tax lands on top of the regular income tax you already owe.
An early retiree therefore has a gap to cross. Stop working at 45 and you face about 15 years before penalty-free access begins. A Roth conversion ladder is one legal way to cross it. Size the gap with our early retirement calculator, and size the portfolio itself with our FIRE calculator.
The 5-year rule that makes it a ladder
Each conversion carries its own five-year clock. IRS Publication 590-B states that a separate 5-year period applies to each conversion and rollover. Take the converted money out early and the 10% additional tax can apply to it.
The clock is generous about timing. It starts on the first day of the tax year in which you convert. So a conversion made in December 2026 still starts its clock on January 1, 2026. That amount escapes the 10% tax starting January 1, 2031.
One conversion buys you one year of spending money, five years out. Repeat it every year and the tranches mature one after another. That repeating chain is why the strategy is called a ladder.
A year-by-year conversion schedule
Here is the schedule for someone who retires in 2026 and spends $50,000 a year.
In 2026 you convert $50,000 from a traditional IRA into a Roth IRA. You live that year on taxable savings. You repeat the same $50,000 conversion in 2027, 2028, 2029, and 2030. You keep living on taxable savings the whole time.
In 2031 the first rung matures. You withdraw the 2026 conversion of $50,000 free of the 10% tax, and you convert another $50,000 for later. In 2032 you withdraw the 2027 conversion. Each year after that you climb one rung and add one rung.
The ladder ends when you turn 59 1/2, because the 10% tax no longer applies. Note that only the converted principal is on the rung. Growth on that money counts as earnings, and earnings follow different rules covered below.
The five years of savings you must have first
The ladder does not feed you during its first five years. In the example above, the first conversion stays locked until 2031. Something else has to pay the bills from 2026 through 2030.
That money usually comes from a taxable brokerage account, cash savings, or Roth contributions you already made. At $50,000 a year, you need roughly $250,000 outside your traditional accounts before the ladder is usable. Retirees who skip this step pay the exact penalty they set out to avoid.
A taxable account is the usual bridge because it has no age rules. See how to retire at 40 for how that pot fits the wider plan. If you are still building, our Coast FIRE calculator shows how much of the work compounding can do for you.
How Roth IRA withdrawals are ordered
Money leaves a Roth IRA in a fixed order, not the order you pick. Publication 590-B sets it out plainly. Regular contributions come out first, then conversion and rollover contributions, then earnings.
Conversions come out on a first-in, first-out basis, oldest year first. Within a single conversion, the taxable portion comes out before the nontaxable portion. This ordering is what makes the ladder work. Your oldest and fully seasoned rung is always next in line.
Earnings sit last, and they stay restricted the longest. Earnings come out tax-free only in a qualified distribution. That needs five years since your first Roth contribution, plus age 59 1/2, disability, death, or a first home up to a $10,000 lifetime limit. Model the account with our Roth IRA calculator.
What each conversion costs you in tax
A conversion is a taxable event in the year you make it. The pre-tax amount you convert counts as ordinary income for that year. Pay the tax from outside the IRA when you can, so the full converted amount keeps growing.
This is why the ladder fits low-income years. Federal brackets are marginal, so only the income above each threshold is taxed at the higher rate. In a retirement year with little or no wage income, your conversion fills the lowest brackets first.
Converting a huge amount in one year does the opposite. It stacks income into higher brackets. It can also raise the income figure used for marketplace health insurance subsidies. Converting about one year of expenses at a time keeps each tax bill small. If you are still choosing account types, compare Roth IRA vs traditional IRA first.
The alternatives: Rule of 55 and 72(t) payments
A ladder is not the only route, and it is not always the best one.
The Rule of 55 covers workplace plans only. IRS Publication 575 states that the 10% tax does not apply to a distribution from a qualified retirement plan after your separation from service in or after the year you reached age 55. The calendar year is the test, not your birthday. Leave your job in March of the year you turn 55 in November and you still qualify. Leave in the year before and you do not, even if you wait to withdraw.
Qualified public safety employees get an earlier version of the same break. Their exception starts at the earlier of age 50 or 25 years of service under the plan. Either way there is no five-year wait. But the exception applies only to the plan at the job you left, and never to an IRA.
SEPP, also called 72(t), pays you a fixed series instead. The IRS allows three calculation methods for the payment amount. Payments must continue until the later of the fifth anniversary of the first payment or age 59 1/2. Break the series early and you owe the 10% tax for the prior years, plus interest. SEPP pays right away, which a ladder cannot do, but it locks you in.
Governmental 457(b) plans can skip the ladder
A governmental 457(b) usually needs no workaround. IRS Topic 558 states that an eligible state or local government section 457 deferred compensation plan is not a qualified retirement plan. Distributions from such a plan are not subject to the 10% additional tax on early distributions. A public employee who leaves that job can often just withdraw, subject to the plan's own rules.
One carve-out matters if you consolidated old accounts. Topic 558 adds that any distribution attributable to amounts the 457 plan received in a direct transfer or rollover from a qualified retirement plan is subject to the 10% additional tax. That covers money you rolled in from a 401(a) plan such as a 401(k), a 403(a) annuity, a 403(b), or an IRA. Those dollars keep their penalty inside the 457(b).
So keep rolled-in money separate if you plan to retire early on the 457(b). Rolling the 457(b) out into an IRA gives up the exemption on all of it. To see what an unplanned early withdrawal would cost, use our IRA early withdrawal calculator.
The ladder is a one-way door
You cannot undo a conversion. The Tax Cuts and Jobs Act ended that option for conversions made on or after January 1, 2018. The IRS states that a conversion from a traditional, SEP, or SIMPLE IRA to a Roth IRA cannot be recharacterized.
Before the change, savers could reverse a conversion when markets fell or the tax bill surprised them. That safety net is gone. Once you convert, the income belongs to that tax year for good.
So size each rung late in the year, when you can estimate your full-year income. Regular Roth contributions can still be recharacterized, but conversions cannot. Build the wider plan first with our retirement calculator.
Frequently asked questions
How does a Roth conversion ladder work?
A Roth conversion ladder works by converting roughly one year of expenses from a traditional IRA to a Roth IRA each year. Each conversion has its own five-year period before the converted amount escapes the 10% early-withdrawal tax. You withdraw the year one conversion in year six, the year two conversion in year seven, and so on until age 59 1/2.
How much do I need saved outside my IRA to start a Roth conversion ladder?
You generally need five years of living expenses in taxable or already-accessible accounts. Your first conversion cannot come out free of the 10% tax until the sixth year. Someone spending $50,000 a year needs roughly $250,000 outside their traditional accounts to cover that stretch.
Do I pay taxes on a Roth conversion?
Yes. The pre-tax amount you convert counts as ordinary income in the year of the conversion. Because federal brackets are marginal, converting in a year with little other income keeps the rate low. Paying the tax bill from outside the IRA leaves the full converted amount invested.
In what order does money come out of a Roth IRA?
Regular contributions come out first, then conversion and rollover contributions on a first-in, first-out basis, then earnings. Within each conversion, the taxable portion comes out before the nontaxable portion. IRS Publication 590-B sets this order, and it applies no matter which dollars you believe you are withdrawing.
Is the Rule of 55 or a 72(t) SEPP better than a ladder?
It depends on your accounts and your timeline. The Rule of 55 covers only the workplace plan you just left, and only if you separate in or after the calendar year you turn 55. A 72(t) SEPP pays out right away but locks you into a fixed series until the later of five years or age 59 1/2. A ladder stays flexible year to year, but it needs a five-year cash bridge first.
Can I reverse a Roth conversion if I change my mind?
No. Conversions made on or after January 1, 2018 cannot be recharacterized, under the Tax Cuts and Jobs Act. The income stays in the conversion year even if the market falls right after. Regular Roth contributions can still be recharacterized, but conversions cannot.
Sources
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