Retirement Withdrawals:
the tax order that preserves your NEST

The last sequencing problem

The final tax question arrives at the far end of the arc. Decades of building have filled the accounts (Taxable, 401k, IRA, Roth, HSA: the order that matters), the NEST is real, and now it has to be spent — and the order you draw from those accounts changes how much survives tax.

This is Which Dollar Goes Where First: the standard order, and why it works run backwards: the last big structural-efficiency decision, made at exactly the point where professional guidance matters most. This chapter is the vocabulary for that conversation, emphatically not a substitute for it.

Why the order matters

Each account comes out differently. Pre-tax withdrawals count as ordinary income. Roth withdrawals aren't taxed. Ordinary investment accounts are taxed at capital rates, on gains only (Your 401k Isn't All Yours: reading NEST tax-adjusted's honest values, now being realized).

And because the tax staircase (Marginal vs. Effective Tax Rates: what bracket you are actually in) resets every year, the real question is: which income lands in which year's brackets?

Draw too much taxable income in one year and you climb the staircase. Sequence it thoughtfully and the same lifetime withdrawals fill lower steps across more years.

The conventional order — taxable first, pre-tax second, Roth last — has real logic: let the sheltered compounding run longest, and spend the flexible money first. It also has real exceptions. Low-income early-retirement years can make pre-tax withdrawals or Roth conversions unusually cheap, because you're deliberately filling the low brackets. And eventually the law forces pre-tax money out on its own schedule through required minimum withdrawals, whatever you'd prefer — with the exact ages and rules being another professional-ground specific that changes over time.

The teachable core: sequencing across accounts and years is worth real money — routinely five figures across a retirement — and it can be planned, which is exactly why Net Minus Is Normal: in retirement, spending down is the plan working's lessons and a professional's projections belong together.

The risk that is bigger than the markets

The intuitive fear in retirement is a crash. The measured risk is living a long time.

Take a modelled $1 million diversified portfolio from age 66, drawing 6% a year with 2% inflation. It lasts 20 years even on weak market performance. It runs out within 30 years under either market scenario.¹ So the binding constraint is the length of the retirement, not the returns.

Two things follow. Longevity is the variable to plan around, and any projection should be run to an age you might actually reach rather than to an average. And the withdrawal rate does more work than the allocation, which is the opposite of where most attention goes.

Alongside it sits the risk that is genuinely about markets, and it is about order rather than average. Drawing income during a fall locks in the loss. So the same average return produces different outcomes depending on when the bad years arrive. That is why a cash buffer matters more after you stop earning than before (The First $1,000 Does the Most Work: how much buffer you actually need).

For context on confidence: only 57% of workers believe their savings will last their lifetime.¹

Tax does not stop when the salary does

The assumption that tax falls in retirement is where the expensive mistakes start.²

Required minimum distributions generally begin at 73 on traditional IRAs and most workplace plans. Miss one, and the penalty is a 25% excise tax on the shortfall, reduced to 10% if corrected within two years.² Roth 401(k)s no longer carry them during the owner's lifetime.

Social Security is not automatically untaxed. Between 50% and 85% of benefits become taxable once combined income passes $25,000 filing single or $32,000 filing jointly.²

And the part that catches people who did everything else right: the income streams interact. Pulling from several sources in one year can push you into a higher bracket and raise your Medicare premiums at the same time. The window between retiring and 73 is when conversions and sequencing are cheapest, because income is low and distributions are not yet forced.

One assumption every projection is making

Two trust funds relevant to a retirement plan face dated shortfalls, and almost no projection states which assumption it uses.

Medicare's hospital insurance fund, which pays for Part A, is projected to be exhausted in the second quarter of 2033, a quarter earlier than the previous projection, after which tax revenue covers 89% of benefits.³

Worth handling one claim carefully. It has been argued that eliminating fraud and waste would roughly double the fund's life. The measured improper payment rate for fee-for-service Medicare was 6.55%, or $28.83 billion, in FY2025. But improper payments are not the same as fraud. The category includes overpayments and undocumented claims, so it is a paperwork measure at least as much as a theft measure.³ That distinction matters here and it is the same one that governs how a loss ratio should be read.

The practical instruction: state your assumption. A plan that quietly assumes full Medicare Part A benefits past 2033, or full Social Security past 2032 (Retiring After 2032? what a trust fund shortfall would actually do), is making a claim rather than a calculation.

What retirement income actually looks like

Full-time workers over 65 earn a median $1,246 a week, or $64,792 a year — and that figure describes almost nobody.⁴

Fewer than one in five Americans over 65 are in the labour force at all. Participation has risen from 11% in 1987 to nearly 20% in 2024. And about 38% of those who do work are part-time, against 11% of prime-age workers.⁴

The typical retiree collects an average Social Security benefit of $2,071 a month, $24,852 a year. About four in ten rely on Social Security alone. Average household spending for the 65-plus group is $61,432.⁴

Set those two numbers beside each other and the gap is the whole retirement problem, stated more plainly than any nest-egg target states it.

Where Plenee fits — and stops

Plenee's role is honest inputs: which accounts you hold, the tax-adjusted NEST (Your 401k Isn't All Yours: reading NEST tax-adjusted) showing what's genuinely spendable, coreFLOW showing what retirement actually costs (coreFLOW vs. lifeFLOW: the 2 questions that sort obligations from choices), and Net Minus treated as the plan working rather than an alarm (NET: did you come out ahead?). The withdrawal plan — this year's draws, conversions and bracket-filling — is the professional's craft. Arriving with honest numbers and fluent vocabulary is what this curriculum exists to provide.

The takeaway

How much of your NEST survives retirement depends partly on the order you empty it: accounts are taxed differently, brackets reset every year, and sequencing across both is worth real money. Learn the conventional order and why the exceptions exist, keep your account mix and tax-adjusted NEST honest, and make the actual plan with a professional. It's the last sequencing problem — and the one this whole curriculum was preparing you to discuss well.

This is financial information and education, not personalized financial advice.