US accounts, and the order you drain them

A dollar you save lives in one of three tax homes: taxed now and left alone afterwards, taxed later when you take it out, or never taxed again. Same dollar, same fund, same market, three different futures, decided by the account it sits in.

That layer matters twice in a FIRE plan: while you accumulate, when the question is which container to fill next, and while you withdraw, when the question is which tap to open first. Leave well before 60 and it matters a third time, because the sheltered accounts come with age locks that a plan starting at 45 has to cross.

One warning belongs at the top. The mechanisms below were read against their primary sources in 2026 and they are stable. The dollar figures inside them are not: contribution limits and income phase-outs are indexed and move every year, which is why you will find none of them here. Read the current numbers on irs.gov before you act, and make that reading part of the annual review (The annual review: the retiree's checklist).

🔑 The three tax treatments

Everything here follows from one grid. The trap is reading it as a contest with a winner.

Treatment	Where it lives	Money in	Money out
Taxed now	Taxable brokerage	After tax, no limit	Only the gain, at long-term rates
Taxed later	Traditional 401(k), 403(b), governmental 457(b), traditional IRA	Pre-tax, deducted	Every dollar as ordinary income, forced from 73
Never taxed again	Roth IRA, Roth 401(k), and the HSA for medical spending	After tax (deducted for the HSA)	Nothing, once the conditions are met

Nothing grows taxable inside the last two. You do not pick one: you want all three, in sizes chosen on purpose, because they become three taps with three different tax bills, and that is what lets you set your taxable income year by year.

The map: what each account is for§

The workplace plan, 401(k) and 403(b). The biggest container most people have: you defer part of your salary into it, up to a limit set every year, and the employer usually matches part of it. That match is the one guaranteed 100% return in finance, and skipping it is the only unambiguous mistake in this article; check the vesting schedule, since employer money often becomes yours only after a few years. Most plans offer both flavors, traditional deferrals deducted going in and taxed coming out, designated Roth deferrals the reverse. What you give up is choice: you invest inside the plan's menu, at the plan's fees, and a mediocre menu is a real cost (Building it with US-listed ETFs: the retiree's shopping list).

The 457(b), and its quiet superpower. An eligible deferred compensation plan, offered by state and local governments and by tax-exempt employers. Its deferral limit stacks on top of the 401(k) or 403(b) limit, so someone with both shelters roughly twice what a private-sector colleague can. Then the part that matters here: a governmental 457(b) is not a qualified retirement plan, and a distribution from one "isn't subject to the 10% additional tax on early distributions" (Topic 558). Not at 55, not at 50: at any age, once you have separated from service. For an early retiree it is the most useful account in the system. Two cautions: money rolled in from a 401(k) or an IRA keeps its own 10% exposure, and a non-governmental 457(b) is another animal, its assets staying the employer's property, exposed to the employer's creditors.

The traditional IRA and the Roth IRA. One indexed annual limit shared between the two, and you need taxable compensation to use it. The traditional deduction phases out over an income range if a workplace plan covers you or your spouse. The right to contribute to a Roth phases out over a range of its own, while conversion has no income limit at all, which is the whole of the backdoor: a nondeductible traditional contribution reported on Form 8606, converted afterwards, spoiled by the pro-rata rule if you hold other pre-tax IRA money, since the conversion is then taxed in proportion to your total IRA balance. The Roth IRA also carries the property this article leans on hardest: distributions come out contributions first, then conversions, then earnings, so your own contributions can be withdrawn at any time, at any age, free of tax and of the 10%.

The HSA, the only triple-advantaged account. It takes a high-deductible health plan, and its limits are indexed. Contributions are deducted, and through an employer's cafeteria plan they escape payroll taxes too, which no other account does; growth and withdrawals for qualified medical expenses are untaxed. The mechanic worth knowing is the receipts-later trick: a tax-free distribution can reimburse any qualified expense incurred after the account was established, with no deadline, as long as you keep the records. Pay today's bill out of pocket, file it, let the account compound, reimburse yourself in twenty years. At 65 non-medical withdrawals lose the 20% additional tax and become plain ordinary income (Publication 969), so the account becomes a traditional IRA that stays free for anything medical (US health coverage and Social Security: the two ends of the gap).

The taxable brokerage. No contribution limit, no income limit, no age lock, no menu, no forced distribution ever. In exchange you pay tax as you go, on dividends and interest each year and on the gain when you sell. Three properties earn it its place. Only the gain fraction of a sale is taxed, at long-term rates whose bottom band is 0% (Topic 409), which is where the withdrawal years get interesting (US taxes in the withdrawal phase). A loss harvested in a bad year offsets gains and then a slice of ordinary income (Riding out a bear market in retirement: the playbook), with your choice of tax lots deciding how much gain a sale shows. And whatever you never sell has its basis reset to fair market value at your death (Publication 551). No ceiling, so it is the overflow home of every FIRE plan, and the bridge that carries the first decade.

Filling order: what the standard ladder says§

The ladder below is the one the US financial independence community converged on. It is not advice and it is not law: it is a piece of reasoning, and the reasoning is the useful part.

Enough into the workplace plan to capture the full match. An instant 100% on the matched dollars beats every other line, whatever your bracket.
The HSA, to the limit, if you are eligible. The only account taxed nowhere, and payroll taxes skip it too.
The IRA, Roth or traditional. Roth when your bracket today is low, traditional when the deduction is worth more than the future exemption. An early retiree expects low-income years ahead, which argues for deducting now and converting later, cheaply.
Back to the workplace plan, to its limit, unless the menu is genuinely bad.
The taxable brokerage, with everything left.

Rung five is where a FIRE plan parts company with the textbook, which was written for someone who retires at 65 and touches nothing before then. If you leave at 45, dollars locked until 59 1/2 cannot pay for the first fifteen years, and the taxable account is what does. A taxable balance that looks oversized is therefore not a failure of optimization: it is the bridge, and its size is a design parameter you set on purpose (Building your plan step by step).

Getting at the money early§

Before 59 1/2, a distribution from a retirement account generally carries a 10% additional tax on top of the ordinary income tax (Topic 558). It reads like a wall. It has enough doors that a well-built FIRE plan rarely pays it.

The bridge, in order. The taxable account first: no lock, no penalty, only the gain taxed. Then your Roth IRA contributions, which come out first under the ordering rules and cost nothing. Those two often carry five to ten years, exactly the time the ladders below need to mature.

The Roth conversion ladder. Each year you convert a slice of traditional money into your Roth IRA and pay ordinary income tax on it that year. Five years later that converted amount can be withdrawn with no 10%, whatever your age. Every conversion runs its own five-year clock from January 1 of the year of the conversion, so the machine takes five years to start and needs those five years of spending funded elsewhere. Once running it is elegant: one year's spending converted every year, one year's conversion maturing every year, tax paid at the low rates of a retiree with no salary.

72(t), the substantially equal periodic payments. It works, and it binds. You take a series of payments from an account you designate, computed by one of three methods, the RMD method, fixed amortization or fixed annuitization, with the interest rate capped by Notice 2022-6 at the greater of 5% or 120% of the federal mid-term rate for one of the two preceding months. The series must run until the later of five years and age 59 1/2, and exactly one change is allowed, from a fixed method to the RMD method. Break it any other way and the IRS takes the 10% on the current year plus a recapture of every year you avoided it, plus interest. Since the calculation runs on the balance of the account you name, the usual practice is to carve out an IRA sized to the payment you want. A good last resort, a poor first choice.

The rule of 55. Leave your employer during or after the calendar year you turn 55 and distributions from that employer's plan escape the 10% (age 50 for qualifying public safety employees in governmental plans). Two conditions people forget: it never applies to an IRA, so rolling the plan into one on your way out destroys it, and the plan has to allow partial distributions rather than a single lump sum.

And the 457(b) again. For a governmental plan there is nothing to arrange: separate from service, and the money is available with no 10%, at any age.

⚠ Three five-year clocks people constantly conflate

They have nothing to do with each other, and mixing them up is the most common error in the subject.

The Roth IRA qualification clock. One per person, ever. It starts on January 1 of the first tax year you contributed to any Roth IRA, and once it has run, and you are 59 1/2, the earnings come out tax free. Opening a Roth with a token amount early starts it for good.
The conversion clock. One per conversion. Each converted amount waits five years before it escapes the 10% for someone under 59 1/2. This is the clock the ladder runs on.
The plan clock, inside a designated Roth 401(k) or 403(b). It starts with your first designated Roth contribution to that plan, and it does not carry over: roll the account into a Roth IRA and the years it spent in the plan count for nothing there.

Outside all three sit your regular Roth IRA contributions, yours whenever you want, with no clock and no condition.

Draining order: taxable, traditional, Roth, and why§

The conventional order spends the taxable account first, then the traditional accounts, then the Roth. Taxable dollars were taxed on the way in, so spending them costs little beyond the gain, and leaving the tax-free account for last gives it the longest run of untaxed compounding, which is where that privilege is worth the most.

The pure version, though, is beaten by a blended one, and that is the central result of the subject. The years between an early retirement and the start of pensions are the cheapest tax years of your life: no salary, no Social Security yet, low brackets sitting empty. Spending only from the taxable account leaves them empty while the traditional balance compounds into something taxed later at a higher rate. So the arithmetic favors filling those brackets on purpose every year, with conversions, with traditional withdrawals, or both, while your actual spending comes from the taxable account. Where the filling stops is its own article (US taxes in the withdrawal phase), and one counterweight belongs in the calculation: before Medicare, the income you create also drives your health insurance subsidy (US health coverage and Social Security: the two ends of the gap).

The deadline that makes this worth doing early is the required minimum distribution. From the applicable age, 73 today and 75 for anyone who reaches 74 after 2032, the pre-tax accounts must pay out every year whether you need the money or not, as ordinary income, stacked on top of Social Security. Roth IRAs are exempt during the owner's lifetime, and since 2024 so are designated Roth accounts in a 401(k) or 403(b). A large traditional balance left alone until 73 does not disappear: it turns into a forced income stream at the worst bracket you will ever face.

🧮 A couple leaving at 45

Ana and Michael retire at 45 with $2M and spend $80,000 a year. Their money sits in three pools: $700,000 taxable, $1.1M traditional across old 401(k)s and IRAs, and $200,000 in Roth IRAs, of which $120,000 is contributions.

Years 1 to 5, the bridge. Spending comes out of the taxable account, dividends first, then sales with the lots chosen to keep the realized gain small, so much of that gain sits in the 0% long-term band. In the same years they convert about $60,000 from traditional to Roth, sized to fill the low brackets and no higher, and pay the tax on the conversions out of the taxable account too. Nothing is drawn from those conversions yet: each is starting its clock.

Years 6 to 15, steady state. Each year, the conversion made five years earlier comes out with no 10% and no further tax, and covers what the shrinking taxable account no longer funds. A fresh conversion goes in at the top. The $120,000 of Roth contributions, reachable at any moment, stays put as the reserve behind the whole arrangement.

At 59 1/2. The locks open, the ladder becomes unnecessary, and the traditional pool has spent fifteen years draining into Roth at low rates instead of compounding toward a forced distribution at 73.

The numbers are round on purpose. The point is that no dollar ever paid the 10%, and the tax on the traditional pool was paid in the cheapest brackets of their lives. The price is visible too: the taxable account had to carry five years of spending plus the tax on five years of conversions before the first rung matured. That is what the accumulation phase has to plan for.

The essentials§

Three tax treatments, not one winner: taxed now (taxable brokerage), taxed later (traditional 401(k), 403(b), 457(b), IRA), never taxed again (Roth accounts, and the HSA for medical spending). Holding all three is what lets you choose your taxable income year by year.
The employer match is the only guaranteed 100% return in finance, and the HSA is the only account taxed nowhere; at 65 it drops the 20% additional tax on non-medical withdrawals.
The 10% additional tax before 59 1/2 is not a wall. Taxable money and Roth IRA contributions carry the first years; the conversion ladder, 72(t), the rule of 55 and the governmental 457(b), which carries no 10% at any age after separation, open the rest.
Three five-year clocks get confused constantly: one per person for qualified Roth earnings, one per conversion for the 10%, one per plan for a designated Roth account, and that last one does not carry over into a Roth IRA.
The draining order is taxable, then traditional, then Roth, blended with deliberate conversions in the low-income years before pensions start. Required minimum distributions from 73, and 75 for those who reach 74 after 2032, are the deadline that makes those quiet years valuable.

Going further§

IRS Publication 590-A and Publication 590-B (IRAs): deduction and contribution phase-outs, conversions and Form 8606, the Roth ordering rules and the five-year rules, required minimum distributions.
IRS Publication 969, Health Savings Accounts and Other Tax-Favored Health Plans: eligibility, the limits, qualified expenses, and what changes at 65.
The retirement topics pages on irs.gov: Topic 558 and the exceptions table for the 10% additional tax, the Substantially Equal Periodic Payments page for 72(t) and Notice 2022-6, the required minimum distributions FAQ, the 401(k) and 457(b) plan pages, and Topic 409 for the long-term capital gain rates.
In this book: US taxes in the withdrawal phase (what a withdrawal actually costs), US health coverage and Social Security: the two ends of the gap (cover before Medicare, and the income that drives it), Building it with US-listed ETFs: the retiree's shopping list (which block belongs in which account), Building your plan step by step (sizing the bridge).
Limits, phase-outs and brackets are indexed and move every year. Every mechanism here was checked against its primary source in 2026; check the current figures before you act on any of it.