Ask a retiree how their portfolio performed last year and most can tell you within a percentage point. Ask them which account they drew from last month — and why that one, specifically — and the answer is less certain. Often there was no decision at all. The money came from wherever felt most natural: the brokerage account because it was liquid, the IRA because it seemed like the income account, the money market because it was there. The choice was not wrong, exactly. It was simply unexamined. And in retirement, unexamined defaults tend to be expensive ones.
This is the problem of withdrawal sequencing — the question of which account to draw from, in what order, and how that order interacts with everything else in the financial picture. It is one of the highest-leverage decisions a retiree can make, and one of the most frequently left to instinct.
The Default That Costs More Than It Should
During the accumulation years, the order of accounts barely mattered. Money went in — to the 401(k), to the brokerage account, to the IRA — and the goal was simply to grow it. The accounts were containers, more or less interchangeable in purpose if not in structure. Retirees who spent decades in that mode tend to carry the same indifference into distribution. They withdraw from wherever feels easiest, or from whichever account their advisor set up as the default source of cash flow.
For a retiree in Naples sitting on two or three million dollars spread across a traditional IRA, a taxable brokerage account, and perhaps a modest Roth, that default is rarely neutral. Drawing from the IRA first generates ordinary income — every dollar counts as taxable. Drawing from the brokerage account may trigger capital gains, but the tax treatment depends on the holding period and the cost basis of the specific lots sold. Drawing from the Roth generates no taxable income at all. These are not equivalent choices. They produce different tax consequences this year, different account trajectories over the next decade, and different outcomes for a surviving spouse or estate.
The retiree who defaults to the IRA because it feels like the income account — because that is where the largest balance sits, because the distributions feel like a paycheck — may be generating tens of thousands of dollars in unnecessary taxable income each year. Not because the IRA is the wrong account to ever draw from, but because drawing from it without considering the alternatives forfeits the ability to minimize the lifetime tax burden.
Why the Order Changes Everything
The tax code does not treat retirement accounts equally, and the differences compound over time in ways that are easy to underestimate.
A dollar withdrawn from a traditional IRA is taxed as ordinary income. It adds to adjusted gross income, which determines not only the federal tax bracket but also the taxation of Social Security benefits, the applicability of the net investment income tax, and — critically for retirees in the Medicare system — whether IRMAA surcharges apply to Part B and Part D premiums. A single withdrawal that pushes income past an IRMAA threshold can cost thousands of dollars in additional Medicare premiums the following year, and those thresholds are not indexed to behave intuitively. They are cliff-based: one dollar over the line produces the full surcharge.
A dollar withdrawn from a taxable brokerage account is treated differently. If the asset has been held for more than a year, the gain is taxed at long-term capital gains rates — which, for many retirees, are lower than their ordinary income rate. If the asset has lost value, the sale may generate a loss that offsets other gains. And the cost basis resets at death, which means assets held in taxable accounts can pass to heirs with no embedded capital gains tax at all.
A dollar withdrawn from a Roth IRA, assuming the account has been open for at least five years and the owner is over fifty-nine and a half, is not taxed. It does not appear on the tax return. It does not affect Social Security taxation, IRMAA calculations, or any other income-dependent threshold. It is, from the tax code's perspective, invisible.
These differences mean that the sequence of withdrawals is not merely a tax question for this year. It is a portfolio composition question for every year that follows. Each withdrawal reshapes the balance between tax-deferred, taxable, and tax-free assets — and that balance determines the retiree's flexibility for decades. A retiree who drains the Roth early for convenience has eliminated the most flexible asset in the portfolio. A retiree who avoids the IRA entirely will face larger RMDs later, when the balance has continued to grow and the distributions are no longer optional.
The Coordination Problem Most Plans Ignore
Withdrawal sequencing does not exist in isolation. It is connected to every other major retirement planning decision — and when treated as a standalone question, it tends to optimize one variable at the expense of others.
Consider the retiree who is also executing a Roth conversion strategy during the corridor years between retirement and age seventy-three. The amount converted each year should be calibrated to fill favorable tax brackets without triggering IRMAA surcharges or pushing Social Security benefits into higher taxation. But withdrawals from other accounts affect that same bracket space. A poorly timed withdrawal from a traditional IRA can consume the very room that was intended for a conversion — turning what should have been a coordinated strategy into a series of competing draws on the same limited tax capacity.
Or consider the retiree whose estate plan assumes that certain assets will pass to heirs with a stepped-up basis. If those assets are sold during the retiree's lifetime to fund withdrawals — because the brokerage account was the default source — the step-up is lost, and the heirs inherit the tax consequence instead.
Medicare planning adds another layer. IRMAA surcharges are calculated based on income from two years prior, which means a withdrawal decision made today affects premiums twenty-four months from now. A retiree who does not account for this lag may find that a year of higher withdrawals — perhaps to fund a home renovation or a large travel expense — produces a Medicare cost increase that arrives long after the spending is forgotten.
The point is not that these interactions are impossibly complex. It is that they are interconnected in ways that a single-account withdrawal strategy cannot accommodate. The retiree who asks "which account should I draw from?" is asking the wrong question if the answer does not also account for what is being converted, what is being preserved, and what thresholds are at risk.
Sequence as a System, Not a Rule
There is no universal right order. The conventional wisdom — draw from taxable accounts first, then tax-deferred, then Roth — is a reasonable starting point, but it was designed for a simpler landscape than the one most affluent retirees actually face. It does not account for Roth conversion opportunities, IRMAA cliffs, the widow's penalty, or the specific composition of the taxable account. Applied rigidly, it can produce outcomes that are worse than a more nuanced, year-by-year approach.
What matters is not the rule. It is the system — a withdrawal framework that is intentional, reviewed annually, and responsive to changing conditions. In some years, drawing primarily from the brokerage account makes sense because the retiree has losses to harvest or gains with favorable long-term rates. In other years, drawing from the IRA up to a specific bracket ceiling makes sense because it reduces future RMDs without triggering surcharges. In still other years, a Roth withdrawal is the right move because income from other sources has already filled the available bracket space.
The discipline is not in following a fixed sequence. It is in asking the right question each year: given this year's income, this year's brackets, this year's conversion targets, and this year's Medicare thresholds, what is the most tax-efficient way to generate the cash flow I need — while preserving optionality for the years ahead?
For retirees in Southwest Florida who are accustomed to managing complexity — who built careers on making coordinated, multi-variable decisions — this way of thinking is not foreign. It is familiar. What is often missing is not the capacity but the framework: a structure that translates the instinct for optimization into a repeatable annual process.
When the Right Move Feels Counterintuitive
The hardest part of withdrawal sequencing is not the math. It is the feeling.
For retirees who spent decades minimizing taxes in every single year — maximizing deductions, deferring income, sheltering gains — the idea that the optimal strategy might involve paying more taxes now is deeply counterintuitive. It conflicts with the instinct that was rewarded for thirty years. The accumulation mindset says: defer, defer, defer. The distribution reality says: sometimes, the most expensive thing you can do is pay nothing today.
Drawing from an IRA to fill a low bracket deliberately, rather than waiting until RMDs force far larger amounts into higher brackets. Converting Roth dollars in a year when income is temporarily low, even though the conversion itself generates a tax bill. Selling appreciated stock in a taxable account to rebalance and harvest the favorable capital gains rate, rather than holding indefinitely out of habit. Each of these decisions is sound. Each feels, in the moment, like volunteering for a cost that could have been avoided.
This is where the identity work of retirement — the shift from accumulation to distribution, from optimization to alignment — meets the mechanics of the plan. The retiree who has internalized the difference between building wealth and living from it will find these decisions easier. Not because the math is simpler, but because the frame has changed. The goal is no longer to minimize this year's tax bill. It is to minimize the lifetime tax burden, preserve flexibility, and ensure that the portfolio serves the life it was built to support.
That shift — from annual minimization to multi-decade coordination — is the real discipline of withdrawal sequencing. And for retirees who have the assets, the time horizon, and the willingness to think structurally, it is one of the most consequential decisions they will make.
