Best Month to Retire? Why the Calendar Year Matters More (2026 Rules)
You have a rough retirement target in mind and now need to pick the actual date. It's tempting to pick the best month to retire by the season, but the dates that move money sit on the tax and benefits calendars.
In 2026, a couple under 65 whose retirement-year income tops $84,600 can lose their entire ACA premium credit, with no cap on repayment.
The short answer: There is no single best month to retire. For most people, the retirement month mainly changes how much income lands in the first retirement tax year and which benefit clocks start. Employer payout dates and health-coverage deadlines usually matter more than the season.
Key takeaways
A December 31 retiree and an April 30 retiree both get a full low-income tax year starting the next January 1.
In 2026, the $32,200 married standard deduction makes pre-tax 401(k) front-loading in a partial retirement year a low-value move.
Before 65, whole-year income sets your 2026 ACA premium tax credit, and household income above $84,600 for a couple eliminates the credit entirely, with no cap on repayment.
Social Security's first-year monthly earnings test can pay full checks after you stop working.
Employer dates for bonuses, matching, vesting and pensions often outweigh tax-bracket timing.
Does the month you retire actually matter?
Yes, but mostly for one year. The month decides how much salary you earn before retirement, and that sets the size of your first partial low-income tax year. In our planning work, the answer to "what month?" usually comes from the calendar year and the benefit clocks that start the day you leave.
Consider two hypothetical couples in which one spouse works, earning $150,000. The first retires April 30, 2026, after earning about $50,000, while the second works through December 31 and collects the full $150,000. Both begin 2027 with no employment income, so both get the real planning window: a full low-income year. The April couple's only head start is a partial low-income year that arrives earlier.
"Retire in the first half of the year" is a popular rule of thumb. It is mostly a rule about earning less.
An early-year date may help in three situations.
You would otherwise waste low-bracket room you may never see again, because required minimum distributions, a pension or Social Security will start soon.
A large payout, such as unused paid time off, can be pushed into the low-income year.
The extra months of work would earn you no bonus, vesting date or other benefit milestone.
A late-year date has its own advantages. You may collect a full-year bonus, keep year-end employer contributions and finish a health plan year whose deductible you've already met. If none of the three situations above fits, the extra paychecks may be worth more than the earlier start.
What is the best month to retire for tax purposes?
The month matters less than how you use the partial year. Retiring partway through 2026 does create a lower-income tax year, but a married couple's first $32,200 of income is already covered by the 2026 standard deduction (IRS Revenue Procedure 2025-32). That's why maxing a pre-tax 401(k) in your final months often saves only 0% to 12% per dollar.
A hypothetical 2026 example
Hypothetical example for illustration only; your results will differ. Assumptions: married filing jointly, with one spouse earning a $150,000 salary who retires April 30, 2026, after about $50,000 of 2026 wages. The other spouse has no earned income, both are 60 to 62, and the couple has no other income, takes the standard deduction and pays federal tax only under 2026 law.
Step | No 401(k) deferral | $24,500 pre-tax deferral |
Wages | $50,000 | $50,000 |
Pre-tax 401(k) | $0 | $24,500 |
Adjusted gross income | $50,000 | $25,500 |
2026 standard deduction | $32,200 | $32,200 |
Taxable income | $17,800 | $0 |
Federal income tax | $1,780 (all at 10%) | $0 |
Room left to the top of the 12% bracket ($100,800 of taxable income) | $83,000 | $107,500 |
With the full $24,500 deferral, the couple saves $1,780 of federal tax, or about 7 cents per dollar deferred ($1,780 divided by $24,500). The saving is small because, of the $24,500, $6,700 would have been covered by the standard deduction anyway, and the remaining $17,800 would have been taxed at just 10%.
The deferral also creates $24,500 of extra room for Roth conversions, so deferring pre-tax and converting the same dollars later is close to a wash. If the goal is Roth money, a Roth 401(k) deferral gets there in one step, if your plan offers one.
Seven cents per dollar is a rebate, not a strategy.
A pre-tax deferral pays off mainly when you expect a lower bracket later. For a household with $1 million or more facing required minimum distributions, that's often not the case.
If either spouse is 65 or older, a pre-tax deferral is worth even less that year. The $1,650 additional standard deduction (IRS Revenue Procedure 2025-32) and the new senior deduction of up to $6,000 per person, available through 2028, shelter more income (IRS). Virginia's $12,000-per-person age deduction for those 65 and older may also be partly restored that year (Virginia Tax).
The Roth catch-up rule changes the tactic for high earners
Starting in 2026, catch-up contributions must go in as Roth if your 2025 FICA wages from that employer exceeded $150,000 (IRS Notice 2025-67). The 2026 catch-up is $8,000 at age 50 and older, or $11,250 in the years you turn 60 to 63. At exactly $150,000, our hypothetical earner isn't over the line. A single bonus would put them over.
If your 2025 FICA wages from that employer were above $150,000, only the $24,500 base deferral can still go in pre-tax.
Front-loading can cost you the match
Maxing out your deferrals by April can stop a per-paycheck employer match early. Some plans restore it with a year-end true-up, a make-up match paid after the year closes. But true-ups and some annual employer contributions can require you to be employed on the last day of the year. Your summary plan description spells out the rule, and if your plan has no true-up, spread your deferrals across every paycheck you have left.
How to use the low-income year
Roth contributions or Roth conversions sized to a bracket. In the example with no deferral, $83,000 of conversions would fill the 12% bracket.
Harvesting gains at the 0% rate, which in 2026 applies up to $98,900 of taxable income for married couples (IRS Revenue Procedure 2025-32). With $25,500 of AGI, our couple could realize roughly $105,600 of long-term gains at 0% federal, which is $98,900 plus $6,700 of unused standard deduction.
Bunching charitable gifts, such as a donor-advised fund gift, into the high-income year before you retire.
These strategies compete for the same space. Every dollar of conversion pushes gains toward the 15% rate, and both moves raise the income that sets ACA subsidies and Medicare premiums. If you plan to do both, pick the priority first and size the other to what's left.
How does your retirement month affect health insurance?
Your last day of work starts several health-coverage clocks that shape your health care costs in retirement, and which ones matter depends on whether you're under 65.
Retiring before 65: COBRA or the ACA
COBRA continuation coverage lets you keep your employer plan for up to 18 months after you leave, at a premium of up to 102% of the plan's cost (U.S. Department of Labor). That's often expensive, so many early retirees look at ACA marketplace coverage instead.
The ACA premium tax credit is based on your household's modified adjusted gross income for the whole year, including the wages you earned before you retired. Because the enhanced credits expired at the end of 2025, the cap at 400% of the federal poverty level is back. For 2026 coverage, that line is $84,600 for a household of two in the 48 contiguous states and D.C., which is four times the 2025 poverty guideline of $21,150 (HealthCare.gov).
Exceed it and the credit disappears, and starting with 2026 there's no cap on repaying the advance credits you already received (IRS Fact Sheet 2025-10).
Hypothetical example for illustration only, using the same couple and assumptions as above, with the $24,500 pre-tax deferral. They retire April 30 at 60 and buy marketplace coverage for May to December, with AGI of $25,500. A $107,500 Roth conversion, enough to fill the 12% bracket, would push their income to about $133,000, or $48,400 over the $84,600 line. They would lose the credit for every marketplace month and repay the entire advance amount. A conversion of about $59,100 or less ($84,600 minus $25,500) would keep them under the line, assuming no other income counts.
The House passed a three-year extension of the enhanced credits in January 2026 (ASTHO), but as of September 2026 it had not become law, and the credits remain expired (KFF, July 2026). Verify the current rule before you act.
In our planning work, this is the coordination point that catches people, because tax planning and ACA planning pull in opposite directions in 2026. The right split depends on your situation. If you'll buy marketplace coverage in your retirement year, find your ACA line first and size any conversion or gain harvest to fit under it.
Retiring at 65 or later: the COBRA trap
If you keep working past 65 with group coverage from that job, you can delay Part B. You then get an 8-month Special Enrollment Period that starts when the job or the coverage ends, whichever comes first.
COBRA does not pause that clock, because the 8 months start when you stop working, even if you elect COBRA (Medicare.gov). Miss the window and you may owe a Part B late-enrollment penalty of 10% for each year you could have enrolled, for as long as you have Part B (Medicare.gov).
If you retire at 65 or later, schedule Part B enrollment for the month you stop working, not the month COBRA ends.
HSA owners: stop contributions six months early
If you're 65 or older, Medicare.gov advises stopping HSA contributions, yours and your employer's, 6 months before you retire or apply for Social Security. Premium-free Part A can start retroactively up to 6 months (SSA), and your HSA limit drops to zero for any month you're enrolled in Medicare (IRS Publication 969). So if you'll apply for Medicare at retirement, count back six months and stop there.
What day of the month should you retire?
Plan documents usually decide the day, so check when your employer health coverage ends, when your pension starts, and when your final pay period closes. If coverage ends on the last day of the month you leave and you've already met this year's deductible, finishing the plan year may be worth real money.
What is the best month to retire for Social Security?
For Social Security, the month matters less than most people think, because retiring and claiming benefits are separate decisions, and claiming can wait.
If you claim before full retirement age, Social Security normally withholds $1 for every $2 you earn above $24,480 in 2026. In your first year of retirement, though, a special rule can switch it to a monthly test. You get a full check for any month your wages are $2,040 or less and you do no substantial self-employment work (SSA).
Hypothetical example for illustration only. Someone who is 63 retires April 30, 2026, after earning $50,000, and claims benefits starting in May. Under the annual test alone, up to about $12,760 of benefits could be withheld ($50,000 minus $24,480, divided by 2). Under the first-year monthly rule, the May to December checks can arrive in full, as long as monthly wages stay at or below $2,040.
So you don't have to retire in January to protect your first-year checks.
Bonuses, unused vacation or sick pay, and severance paid after you retire for earlier work are treated as special payments. They don't count toward the earnings test, though they remain taxable wages (SSA Publication EN-05-10063).
If you claim early, keep your final pay stubs, since Social Security may ask your employer to confirm which payments were special.
Will your last working year raise your Medicare premiums?
It can. Medicare's income surcharge, called IRMAA, uses your tax return from two years earlier, so 2026 premiums are based on 2024 income (SSA). A married couple filing jointly with 2024 modified adjusted gross income above $218,000 pays $284.10 a month per person for Part B, instead of the standard $202.90 (CMS).
That first tier costs $81.20 a month per person ($284.10 minus $202.90), or $1,948.80 a year for a couple, before any Part D surcharge. Our guide to preparing for IRMAA walks through the higher tiers.
Hypothetical: someone who retires December 31, 2026, at 63 has a full salary year in 2026, and that income sets their 2028 premiums, their first year on Medicare at 65. The 2028 income thresholds are not yet published.
Form SSA-44 lets you ask Social Security to use a more recent, lower-income year after a work stoppage. In our planning work, it's a routine step for new retirees. The form doesn't erase a surcharge caused by a Roth conversion or capital gains in the retirement year itself. If your final salary year crosses an IRMAA line, file Form SSA-44 when the premium notice arrives. If a Roth conversion will cross it, decide on purpose whether the tax you save later is worth the surcharge you pay now.
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Which employer dates should set your retirement date?
Often, your employer's calendar is worth more than any bracket planning, since one date-based bonus can outweigh a year of tax strategies. Every item below is plan-specific. Check your plan documents or ask HR.
Date to check | Why it can move money |
Bonus eligibility date | Some plans pay only if you are still employed on a set date. |
PTO payout | Taxed as supplemental wages. The 22% federal withholding rate is optional and is not your final tax (IRS Publication 15). |
Match true-up | Year-end contributions may require you to be employed on the last day of the year. |
Vesting date | Employer 401(k) money can vest on a cliff of up to 3 years or a graded schedule of up to 6 (IRS). Leaving early can forfeit it. |
RSU vest dates | Unvested units can forfeit when you leave, unless a retirement provision applies. |
Deferred compensation | Payout timing was set by elections made years ago. Changing it takes an election 12 months ahead and a delay of at least 5 years (26 CFR 1.409A-2). |
Pension lump sum | The interest rate uses a lookback month and a stability period, which resets January 1 in plans with a calendar-year stability period. Higher rates mean a smaller lump sum. |
For a pension lump sum, ask the plan to calculate it under both rate periods before you pick a date. In Virginia, state law requires final wages by the next regular payday but does not require vacation payout, so your employer's policy governs (Virginia Code section 40.1-29). That is general information, not legal advice.
Working one or two days into January may move a PTO payout into the low-income year, start your Rule of 55 year and meet some "employed on January 1" rules. Each piece is plan-specific. If a vesting or bonus date falls within a few weeks of your target, consider moving the target.
Does the calendar year matter for the Rule of 55 and federal retirement?
Yes. The Rule of 55 lets you take money from your current employer's 401(k) without the 10% early withdrawal penalty if you leave during or after the calendar year you turn 55 (IRS). The age is 50 for qualifying public safety workers in governmental plans. The rule covers only that employer's plan, not IRAs, so rolling the 401(k) into an IRA gives up the exception on those dollars.
For illustration, someone who turns 55 in November 2027 qualifies by leaving on any day in 2027, even January 2, but leaving on December 31, 2026, does not qualify for that plan. One day costs the exception.
For Northern Virginia federal employees, a FERS annuity starts the first day of the month after you retire, which is why the last day of a month is a common choice (5 U.S.C. 8464). Leave payout and service rules vary. If you are a federal employee, get your agency HR office's guidance on your date in writing before you file.
Is it better to retire in spring or fall?
The evidence doesn't clearly favor either season. The National Institute of Mental Health says seasonal affective disorder is more common farther north, where winter days are shorter (NIMH, 2023). But a 2016 study of 34,294 U.S. adults by Traffanstedt, Mehta and LoBello in Clinical Psychological Science found no link between depressive symptoms and season, latitude or sunlight, so the research is mixed.
A plan for your first 90 days, with travel, structure and people, likely matters more to how retirement feels than whether you stop in April or November.
One more honest point: some jobs cost more than any tax move can pay back. If yours is wearing you down, a few thousand dollars of optimization rarely justifies more months of it.
A retirement-date checklist for the 12 to 18 months before you leave
1. Get your plan dates in writing: bonus eligibility, match true-up, vesting, RSU vests, pension start and lump-sum rate periods.
2. Ask HR when your health coverage ends and how unused PTO is paid out.
3. Estimate your retirement-year income by tax year, then choose pre-tax or Roth deferrals for your final months.
4. If you retire before 65, find your ACA line ($84,600 for a couple for 2026 coverage) before any conversion or gain harvest.
5. If you're 65 or older or turning 55 soon, check your Part B window, HSA contributions and Rule of 55 calendar year.
6. Plan your first 90 days of retirement.
Frequently asked questions
Is it better to retire at the beginning or end of the year for taxes?
Neither is automatically better. A December 31 retiree also gets a full low-income year starting January 1, so the real difference is how much salary you earn first.
Should I max out my 401(k) before I retire mid-year?
Not automatically, because in 2026 a married couple's first $32,200 of income is already covered by the standard deduction, so deferring may save little.
Can I collect Social Security the same year I retire if I earned over the limit?
Yes. If you're under full retirement age, Social Security can pay a full check in your first year of retirement for any month your 2026 wages are $2,040 or less.
Does COBRA count as employer coverage for delaying Medicare?
No. Your 8-month Part B Special Enrollment Period starts when you stop working, even if you elect COBRA.
Does my last year of work affect my Medicare premiums?
Yes, because IRMAA uses your tax return from two years earlier, so 2024 income sets 2026 premiums. Form SSA-44 can swap in a more recent year after a work stoppage.
What day of the month should I retire?
Your plan documents usually decide. FERS annuities start the first day of the following month, so federal employees often retire on the last day of a month.
Pick the date from your calendar, not the season
The month you retire mostly decides two things: which tax year each dollar lands in, and which benefit clocks start. Get those right and the season becomes a matter of personal taste. Get them wrong and you can lose a bonus, an ACA credit or a Medicare enrollment window you can't recover.
So before you set a date, answer one simple question: which tax year does my PTO payout land in? If you can't answer it yet, you are picking a month, not building a retirement plan.
Every item on that checklist turns on your own plan documents, income and age. If you'd like to see how the calendar lines up for your dates, it helps to talk it through for your situation before you give notice.
Picking a retirement date is one decision. Lining up your bonus, your ACA income limit, your Medicare window and your Roth conversions around that date is the plan. If you have $1 million or more saved and want a fiduciary to check your dates before you give notice, we can help.
No cost and no obligation. You'll talk with a fee-only fiduciary advisor about your situation.
About the author:
Financial Advisor
Megan Waters is a CERTIFIED FINANCIAL PLANNER™ professional and Financial Advisor at Covenant Wealth Advisors. Megan has over 14 years of experience in the financial services industry.
Raised in Williamsburg, VA, Megan graduated from the Honors College at the College of Charleston with a BS in Economics and a minor in Environmental Studies.
Disclosures: Figures and rules in this article apply to the 2026 tax and coverage year and are current as of September 28, 2026. They may change. For example, Congress could change ACA premium tax credit rules, and the senior deduction is scheduled to end after 2028. All examples are hypothetical and for illustration only. They do not represent any actual client and are not a projection or guarantee of any result. This article is for educational purposes only and is not individualized investment, tax, accounting or legal advice. No article can cover every aspect of retirement planning. Before acting, consult your own tax professional, accountant or attorney about your circumstances. Covenant Wealth Advisors provides advice only to clients who have signed a client service agreement. Covenant Wealth Advisors is the trade name of Fonville Wealth Management LLC, a registered investment adviser with offices in Richmond, Reston and Williamsburg, Virginia. Registration does not imply a certain level of skill or training. Nothing in this content is an offer to sell, or a solicitation of an offer to buy, any security or separate account. Investing involves risk, including possible loss of principal. Past performance does not guarantee future results. Diversification does not ensure a profit or protect against loss. Views expressed are as of the posting date and may change based on market and other conditions. Any forward-looking statements are not guarantees of future performance, and actual results may differ materially. This article was written and edited by a CERTIFIED FINANCIAL PLANNER™ professional with the assistance of AI.
