Retiring before age 65 is still the exception, not the norm, but it's more achievable than people think. Whether you left work early by choice, were laid off, or are simply navigating a gap between a pension and Medicare eligibility, the years before 65 come with a distinct set of rules that don't apply once Medicare begins. Get them right and you can potentially save tens of thousands in taxes and health insurance costs. Get them wrong and a single misstep can cost you thousands in a single year.
This article covers retirement income planning from the time you stop working through age 65. For the mechanical steps of setting up your retirement paycheck, see How to Create Your Retirement Paycheck. For what changes once Medicare begins, see Retirement Planning After Medicare (65+).
The Two Big Constraints Before 65
- Health Insurance Costs - depending on your access to “Premium Tax Credits” (aka ACA subsidies)
- Retirement Account Access - due to early withdrawal penalties prior to 59.5
Understand Your Health Insurance Situation
Before you plan a single dollar of withdrawals, you need to know where you stand on health insurance. This single factor shapes almost every income decision you'll make - especially before age 65.
If you qualify for ACA marketplace subsidies (household income below current limits*, not covered by another health plan):
- Subsidies can be worth $25,000+ per year depending on your income and family size
- Even $1 over the subsidy cliff can cost you thousands, so careful planning is needed
- Roth withdrawals and HSA withdrawals for medical expenses do NOT count as income - use these strategically to keep your MAGI low
- Plan your full year's income before December - rebalancing, Roth conversions, and dividends all add up
If you don't qualify for ACA subsidies (income above threshold, or covered by Medicare/employer plan):
- More flexibility - the focus shifts to minimizing your total lifetime tax bill rather than staying under a ceiling
- Low-income years are a great opportunity to convert IRA money to Roth at lower tax rates
- Tax gain harvesting at 0% becomes a major consideration allowing long-term capital gains to be tax free.
- If you're over 63, IRMAA Medicare surcharges become a consideration
*ACA eligibility and subsidies are based on multiple factors (household size, age, location, etc and are subject to change)
The Withdrawal Order Before 65
| Account | How to Use It |
|---|---|
| Taxable brokerage (use first) | No penalties, no age restrictions. Long-term capital gains are taxed at 0% or 15% - far better than ordinary income rates. Using this account first allows you to minimize your reported income to help with ACA subsidies and continue to defer taxes in retirement accounts as long as possible. |
| Tax-free (Roth IRA/401k and HSA) (use selectively) | Roth contributions (not earnings) and HSA withdrawals for medical expenses can be taken at any age with zero tax and zero penalty. Completely invisible to the ACA subsidy calculation. Use them to fill spending gaps without raising your income. |
| Rule of 55 (401k) | If you leave your employer the year you turn 55 or older, you may withdraw from that specific employer's 401k without the 10% early withdrawal penalty. Withdrawals still count toward ordinary income taxes/MAGI, so ACA subsidies can be affected. |
| 72(t) SEPP (if needed) | Substantially Equal Periodic Payments allow penalty-free IRA access before 59.5. Must commit to a fixed payment schedule for 5 years or until age 59.5, whichever is later. Counts as ordinary income - raises MAGI. |
| Tax-deferred (Traditional IRA/401k) (avoid prior to 59.5) | Unless you use a 72(t), these withdrawals trigger a 10% penalty plus ordinary income taxes on every dollar. Raises MAGI, which can eliminate ACA subsidies. Only use in true emergency/last resort situations. |
Under 55: Limited Options
The key constraint before 55 is the 10% early withdrawal penalty on IRA and 401k withdrawals. That penalty stacks on top of ordinary income taxes, which is why your taxable brokerage account is your primary income source in early retirement. If you anticipate needing early IRA access, two strategies exist - a 72(t) SEPP and a Roth conversion ladder. Both require significant advance planning and are worth modeling carefully before you retire.
Ages 55-63: New Options Unlock
Two significant things change in this phase.
The Rule of 55 opens first. If you left your employer the year you turn 55 or older, you may withdraw from that specific employer's 401k without the 10% early withdrawal penalty. A few caveats: it must be the 401k from the employer you left at 55 or later (not a prior employer's plan), and the plan itself must allow partial withdrawals. Rolling it to an IRA eliminates the Rule of 55 benefit.
At age 59.5, all early withdrawal penalties disappear entirely. IRA, 401k, and 403b accounts are now fully accessible. This is the single biggest shift in withdrawal flexibility in retirement. After this date, the only remaining reasons to delay drawing from tax-deferred accounts are tax efficiency and ACA subsidy management.
Age 63: Start Thinking About IRMAA
Even before Medicare begins, income decisions made at age 63 start to matter for Medicare costs. Medicare uses your income from two years prior to set your Part B and Part D premium surcharges, which means income in the year you turn 63 affects your Medicare costs when you enroll at 65.
High Roth conversions or large capital gain harvests at 63 can trigger IRMAA surcharges when you enroll in Medicare two years later. Plan for this 2-year lag.
IRMAA surcharge tiers (2026, based on 2024 MAGI):
- Above ~$109k single / ~$218k married: +$96/month per person
- Above ~$137k single / ~$274k married: +$240/month per person
- Higher tiers go up to +$578/month per person
Unlike tax brackets, these are hard cliffs - not gradual increases. Cross a threshold by even $1 and you pay the full surcharge for the entire year. The difference for a married couple on Medicare showing $274,000 versus $275,000 is a cost increase of $3,473 for that year. That's why staying just below each threshold, not merely "close to" it, is worth building your year-end income plan around.
Managing Your Income: The ACA Cliff in Practice
When ACA subsidies are in play, income management could be worth thousands of dollars per year. Here's how to think about it:
What counts toward MAGI (and must stay under the cliff):
- Capital gains from selling investments (even if they are in the 0% bracket)
- Dividends received (qualified and non-qualified)
- Interest income
- IRA and 401k withdrawals
- Roth conversions
- Social Security/pension income
- Tax-exempt interest
- Foreign earned income
- Part-time work and any other taxable income
What does NOT count toward MAGI:
- Withdrawals of original Roth contributions (and earnings after age 59.5)
- HSA withdrawals used for qualified medical expenses
This is why taxable brokerage accounts are so valuable in early retirement. Long-term capital gains from selling stocks are taxed at favorable rates AND, if you're careful with your total income, may qualify for the 0% capital gains bracket. The goal is to fund your lifestyle while keeping MAGI under the subsidy cliff.
Similar to IRMAA, these are hard cliffs, but even more significant in terms of potential cost savings. Go over the subsidy income cliff and you could be costing yourself tens of thousands per year, so it’s worth taking the time to carefully plan this out.
Social Security Timing
Social Security timing is one of the most permanent decisions you'll make in this phase. Every year you delay beyond age 62 increases your monthly benefit by approximately 6-8% per year. At 70, your benefit is roughly 75% higher than at 62.
More importantly: taking Social Security early adds permanent ordinary income to your MAGI every year for the rest of your life, reducing bracket room for Roth conversions and potentially pushing you over ACA or IRMAA thresholds.
Delaying to 70 gives you 5-8 extra years of low income, the most valuable window for tax-efficient Roth conversions. If you can fund your lifestyle during this window from taxable accounts and tax-deferred accounts (with some strategic use of tax-free accounts), the long-term benefit can compound dramatically.
Roth Conversions: The Early Retirement Opportunity
The years between leaving work and age 70 are the most valuable tax planning window of your life. Income is more controllable, brackets are wide, and under current law, every dollar you convert from IRA to Roth now is a dollar that will never be subject to RMDs and will never appear on a tax return again.
How to think about Roth conversions before 65:
Consider converting traditional IRA funds to Roth each year up to the top of your 12% bracket - or up to the ACA subsidy cliff, whichever is lower. You pay income tax now at a low rate and those funds then grow and withdraw forever tax-free.
- If you receive ACA subsidies, only convert up to the point where you don't lose your credits. Model this carefully before acting - every dollar of conversion raises MAGI.
- If you don't qualify for ACA subsidies (or are covered by a spouse's employer plan), you have much more flexibility. The 12% bracket is a common target. The 12% bracket holds up to $100,800 of income (married) plus your standard/itemized deduction - a large window to fill during low-income early retirement years.
- At age 63+, also check whether a conversion pushes income above the IRMAA thresholds, since that will affect your Medicare premiums at 65.
The 0% capital gains opportunity: If your total income stays below ~$98,900 (married), you can sell appreciated investments at a profit and owe zero federal tax on the gain. Buy them right back at the new price, permanently reducing future taxable gains at no cost. Just confirm the sale won't push you over the ACA cliff first, since capital gains count toward MAGI even in the 0% bracket.
The Key Numbers for Pre-Medicare Planning (2026)
| Threshold | Single | Married |
|---|---|---|
| ACA subsidy cliff (MAGI) | ~$62,000 | ~$84,000 |
| 0% long-term capital gains (taxable income) | $49,450 | $98,900 |
| 12% bracket top (taxable income) | $50,400 | $100,800 |
| IRMAA tier 1 (based on 2024 MAGI) | $109,000 | $218,000 |
What Changes at 65
At 65, Medicare replaces ACA entirely. The subsidy cliff disappears. A new set of rules and opportunities opens up - most importantly, the ability to do aggressive Roth conversions without worrying about losing health insurance subsidies.
For more on the various planning strategies after Medicare begins - see Retirement Planning After Medicare (65+).
The Bottom Line for Pre-Medicare Retirees
The years before 65 require the most careful income management of your entire retirement. ACA subsidies are worth protecting. Early withdrawal penalties limit your account access. The Roth conversion window is wide open if you use it deliberately.
A little planning each year in the fourth quarter, before you’ve locked in your income for the year, can compound into a dramatically lower lifetime tax bill.
Since tax laws and income brackets change every year, this can be the perfect time for a check-in with a Nectarine advisor that can help create a personalized gameplan.
Retirement Planning Blog Series:
A quick note: this article is meant to educate, not to substitute for personalized advice. The tax figures, income thresholds, and strategies discussed here reflect 2026 estimates and change every year - and how they apply to your specific situation depends on factors I can't account for in a general guide. Before acting on anything in this series, it's worth talking through your specific numbers with a qualified financial or tax advisor.