How to retire
at 55

Why 55 is
different

Retiring at 55 versus 65 isn't just a matter of needing more money (though you do). It creates a set of specific structural challenges that don't exist at 65:

The Rule
of 55

The Rule of 55 is a specific IRS provision that allows penalty-free withdrawals from your 401(k) or 403(b) if you leave your employer in the year you turn 55 or later (50 for certain public safety employees).

Important caveat: this only applies to the 401(k) of the employer you leave that year. Prior employer 401(k)s that you've rolled over, and traditional IRAs, are still subject to the 10% early withdrawal penalty until age 59½ — unless you use Substantially Equal Periodic Payments (SEPP/72(t) distributions), which are complex and lock you in for at least 5 years.

The rule applies to defined contribution plans (401(k), 403(b)) but not to IRA rollovers of those plans. This is a critical nuance: if you roll your 401(k) into an IRA after leaving your employer, you lose the Rule of 55 access and have to wait until 59½.

Roth IRAs are an exception: you can always withdraw your contributions (not earnings) from a Roth IRA at any age without penalty, because that money was already taxed. This makes Roth IRAs particularly valuable for early retirees as a bridge account.

Healthcare
before Medicare

Healthcare is often the biggest underestimated cost for early retirees. Here's what to expect:

ACA marketplace plans: If you don't have employer coverage, you'll need to buy individual insurance through the ACA marketplace (healthcare.gov). Premiums vary widely by age, location, and plan type. For a 55-year-old couple, budget $1,500–$2,500/month before subsidies.

ACA subsidies are income-dependent. Under the enhanced premium tax credits (extended through at least 2026), there's no hard income cutoff — premiums are capped at 8.5% of household income regardless of how high your income is. But lower income means larger subsidies. If your retirement income (withdrawals, dividends, Roth conversions) stays modest, your subsidy can be substantial. This gives you a strong incentive to manage your taxable income carefully in the years before Medicare.

Healthcare cost inflation: Medical costs historically rise faster than general inflation — often 5–7% annually. A plan that works at 55 may be strained at 62 even before Medicare starts. Build in healthcare inflation separately from general spending inflation.

COBRA: If you leave an employer with group coverage, COBRA lets you continue that coverage for 18 months. But you pay the full premium (employer + employee share), which can be expensive. It's a bridge option, not a long-term solution.

The Social Security
gap

If you retire at 55 and plan to claim Social Security at 67 (full retirement age), you have a 12-year gap where your portfolio is the sole income source. If you delay to 70, the gap is 15 years.

During this gap, every dollar of spending comes from your portfolio. There's no income floor. This makes you more vulnerable to sequence of returns risk — a bad market in years 1–5 of retirement hits harder when you have no Social Security to cushion withdrawals.

You also lose about 7–8 years of SS earnings history contributions (you've stopped working), but your SS benefit is based on your 35 highest-earning years. If you had 35+ years of high earnings, retiring at 55 may have minimal impact on your benefit amount.

Delaying Social Security to 70 still makes mathematical sense for most early retirees with good health — the guaranteed 8%/year increase from 67 to 70 is hard to beat — but it means a longer bridge period from your portfolio.

How much
you need

The standard "25x your annual spending" rule assumes a 30-year retirement. At 55, you may need 35+ years of coverage. That changes the safe withdrawal rate:

Research on historical safe withdrawal rates suggests that a 3.3–3.5% withdrawal rate is more appropriate for a 35-year retirement than the commonly cited 4%. That means instead of 25x spending, you may need 28–30x spending.

For someone spending $80,000/year, that's the difference between $2 million and $2.4 million in required savings — a $400,000 gap driven purely by the longer time horizon.

Healthcare costs add significantly. If healthcare runs $30,000/year from 55 to 65 (and that cost isn't modeled in your base spending), that's $300,000 in additional spending need over 10 years — plus investment returns you're not getting on that money.

The income bridge matters. If your spending is $80,000/year and Social Security will cover $30,000 starting at 67, your portfolio only needs to generate $50,000/year from 67 onward — a meaningful difference from the 55–66 period when it must cover everything.

The year-by-year
math

Because retiring at 55 involves several inflection points — Social Security start date, Medicare at 65, RMDs at 73 or 75 — a year-by-year projection is essential. You need to see what happens in each of those transitions, not just whether the money "lasts" on average.

A good projection should show you: how much you withdraw each year and from which account type, what your tax bill looks like each year (higher in pre-SS years when you need larger withdrawals; potentially lower once SS offsets portfolio draws), when RMDs begin and how they interact with your income, and whether the portfolio depletes before your target age.

You should also stress test this against a rough market in the first 5 years. An early retiree with no income floor is particularly vulnerable to sequence of returns risk — and seeing that risk quantified often motivates the right kind of preparation.

Stress test
your plan

Drawdown Arc lets you enter your full early retirement scenario — early retirement age, Roth and traditional account balances, Social Security timing, and healthcare estimates — and see your year-by-year projection. You can test what happens with an earlier SS start, higher healthcare costs, or a market crash in year 3.