The Month You Retire Matters. Here's Why.

Added: 2026-05-23

[00:00:00]The month you retire determines whether 85% of your Social Security check gets taxed. It determines whether Medicare charges you an extra $1,400 a year for the next two decades. It determines whether your portfolio gets exposed to 5 months or 12 months of withdrawals in a year when the market might be down 30%.

[00:00:19]And here is the part nobody puts in the brochure. All of this gets locked in on a single tax return. One year, one return, and you do not get a do-over.

[00:00:29]People spend years planning which year to retire. Most people spend zero seconds planning which month, and that gap, that narrow gap between year and month, is where some of the most expensive financial mistakes in America quietly happen year after year to people who did everything else right. Here is the real hook. The month you retire is probably the only financial lever left in your life that costs nothing to pull.

[00:00:55]It requires no new money, no new account, no new investment strategy. It can save you tens of thousands of dollars over the course of your retirement, and the people who should be telling you about it are mostly silent because they get paid whether or not your launch window is optimized. Here is what this video is actually about. It is not about scaring you into changing your retirement date. It is about showing you four specific financial systems that collide in your first retirement year, and how the month you choose determines whether those systems work for you or against you. Tax brackets, Social Security taxation, Medicare surcharges, and sequence of returns risk. Four systems, one trigger, one decision. I am going to show you exactly how each one works, give you real numbers, and walk you through a scenario that makes this concrete enough to act on. I will also show you what happened to a man named Raymond who retired on December 31st because his advisor told him to finish the year strong. Spoiler, Raymond did not finish the year strong. Here is the metaphor I want you to carry through this entire video. NASA does not say we'll launch sometime in 2024.

[00:02:06]They pick a launch window. Sometimes that window is 12 days. Sometimes it is 48 hours. The reason they pick that specific window is not arbitrary. It is because the orbital mechanics, the fuel load, and the trajectory only line up correctly in a narrow band of time. Miss the window and you do not get where you are going, or you get there, but you burn three times the fuel doing it.

[00:02:29]Retirement has a launch window. The month you choose determines whether all the financial systems around you, tax brackets, Social Security, Medicare, your portfolio, line up in your favor, or fight against you every step of the way. Miss the window, pay the fuel cost.

[00:02:45]Keep that phrase in your head because we are going to come back to it. In a few minutes, I am going to show you the most shocking fact about Social Security taxation that Congress has been quietly ignoring since most of you were in grade school. But first, let me start with the thing that blindsides people the most.

[00:03:02]The one that shows up 2 years after the decision was made. The one where the damage is already done before you even know there is a problem. Most people, when they think about the financial risk of retiring in the wrong month, think about taxes, their bracket, their deductions, maybe their 401k distribution. And yes, taxes matter, but here is the reversal.

[00:03:24]You think taxes are the problem. The actual problem is Medicare.

[00:03:28]Specifically, a surcharge called IRMAA, the income-related monthly adjustment amount, and it is based on your income from 2 years ago. Let me say that again clearly.

[00:03:40]The Medicare premium you pay in 2028 is based on your income in 2026. The surcharge is based on your modified adjusted gross income from 2 years ago.

[00:03:49]Your 2026 IRMAA liability is based on your MAGI from 2024.

[00:03:55]The same math applies 2 years forward from whatever year you retire. The Medicare surcharge in 2026 applies to beneficiaries with income exceeding $109,000 for single filers or $218,000 for joint filers. For these beneficiaries, total monthly Part B premiums range from $284.10 to $689.90.

[00:04:19]Here is what that means in practice. The threshold for each bracket can cause a sudden increase in the monthly premium amount you pay. If your income crosses into the next bracket by $1, your Medicare premiums can suddenly jump by over $1,000 per year. If you are married and both of you are on Medicare, one extra dollar in income can make Medicare premiums jump by over $1,000 per year for each of you. $1, not 100,000. One.

[00:04:48]One extra penny above the threshold triggers a Tier 1 surcharge that adds $81.20 per month to Part B and $14.50 per month to Part 500 per person, totaling $1,148 per year per beneficiary. For a married couple where both spouses are on Medicare, you are looking at a jump from no IRMAA to Tier 1 that costs a couple $2,297 per year. And if you retire in December after a full year of salary wages through November, maybe a year-end bonus, a pension payment, a 401k distribution to smooth the transition, you may have stacked your income past that threshold without even trying. The problem is not that you made a greedy financial decision. The problem is that you had 11 months of paychecks that you could not turn off. The month you retired determined your MAGI. Your MAGI determined your Medicare premium 2 years later. Miss the window, pay the fuel cost. There is actually an appeal process here that most people never use.

[00:05:50]The SSA allows IRMAA appeals, formally called life-changing event requests using form SSA-44.

[00:05:59]When a qualifying event causes income to drop significantly, if your client retired in 2025 and their 2024 tax return reflects a full year of employment income, file an SSA-44 with 2025 income documentation. The SSA can use the more recent year instead, potentially eliminating or reducing IRMAA. This is one of the most underutilized planning tools. Many advisors do not file the appeal because they do not realize it exists or assume it will not be approved. The approval rate for legitimate life-changing events is high, but knowing about form SSA-44 is like knowing about the emergency exit after the plane is already landed badly.

[00:06:40]It can help, it is not the plan. Think about a retired teacher. Let's call her Carol. 31 years in public schools. She hit 65 in the fall and retired December 31st because her pension credited her for one more full year of service if she stayed through year-end. Smart in isolation, but Carol also earned salary all year. She cashed out unused sick leave. She took a small 401k distribution to cover holiday travel.

[00:07:08]She got her first pension check in December. All of it landed on the same tax return. Two years later, Carol receives a letter from Social Security.

[00:07:16]Her Medicare premium is going up. She has been retired for 2 years. Her income is gone. The bill is based on the year it no longer exists. Miss the window, pay the fuel cost. Now, here is where it gets really interesting. And this is where I am going to give you the most genuinely absurd number in this entire video. So, stay with me because it connects directly to IRMAA and it makes the whole picture significantly worse.

[00:07:40]Combined income, also called provisional income, equals your adjusted gross income without social security plus tax-exempt interest plus 50% of your social security benefits. This formula from IRS publication 915 determines how much of your benefits are federally taxable.

[00:07:58]For individuals with provisional incomes between $25,000 and $34,000, up to 50% of benefits could be taxable.

[00:08:06]If the provisional income exceeds $34,000, up to 85% of benefits may be subject to taxes. For married couples filing jointly, the thresholds are different. When their provisional income ranges from $32,000 to $44,000, up to 50% is taxable. Beyond $44,000, up to 85% might be included in taxable income.

[00:08:27]85% is not an 85% tax rate. It means 85 cents of every dollar of your social security benefit gets included in your taxable income. If you are in the 22% bracket, the government is taking roughly 19 cents from every social security dollar you receive. If you are in the 24% bracket, closer to 21 cents on what is supposed to be your retirement income, on money you paid into the system for four decades. Now, here is the number. Those taxation thresholds have not been inflation adjusted since 1984. In 1993, the law was revised to include a second tier, raising the maximum taxable amount to 85% for higher-income beneficiaries.

[00:09:09]That second tier was also frozen the moment it was set. One reason more retirees are paying taxes on social security is that the thresholds have never been adjusted for inflation.

[00:09:20]Raising the thresholds would cost tax revenue, so it keeps getting pushed aside. That means more retirees will owe tax on social security in 2026, according to financial experts. What was once designed to affect only high earners now catches almost everyone who has any income in retirement alongside their benefits. That is not a conspiracy. That is a muse disappointment at the highest level of institutional competence. By the way, hit subscribe if you like the content, otherwise YouTube's algorithm may never show you my videos again. Now connect this directly to your retirement month.

[00:09:55]If you retire in December and you have had 11 months of wages on your return, say you earned $120,000 for the year plus your first pension payment plus your first Social Security check, your provisional income is almost certainly well above $44,000, maybe well above it, which means 85% of your Social Security benefit is taxable for the entire year. That's the maximum.

[00:10:20]You are sitting at the top of the staircase. Now picture the exact same person retiring in January or February.

[00:10:26]Wages stop in week four or five. By the time the first Social Security check arrives, the salary income has almost entirely vanished from the tax year.

[00:10:35]Provisional income drops to $30,000, maybe $32,000. Below these thresholds, Social Security is tax-free. Same human, same benefit amount. Potentially 0% of Social Security taxable instead of 85% determined entirely by the month you retired. This topic matters most when retirees are stacking income sources.

[00:10:58]IRA withdrawals, Roth conversions, part-time wages, pension income, municipal bond interest, and investment income can all interact with the Social Security tax formula. Social Security taxation feels strange because it does not look like a normal bracket system. A retiree can take one extra IRA withdrawal or realize one extra block of income and end up increasing both ordinary taxable income and the taxable share of Social Security benefits at the same time. That double effect is what makes the rule feel harsher than it first appears. You are not doing anything wrong. You are not mismanaging anything. You are simply stacking income sources that would never overlap in any other year of your life. And the month you retired determined whether the stack was controlled or explosive. Now, I want to introduce someone, Raymond, retired mechanical engineer, 29 years at a manufacturing company in the Midwest, smart, methodical guy, spreadsheet for everything. He planned his retirement for 3 years. His financial advisor, a very nice person, I'm sure, told Raymond to wait until December 31st. Full year salary, year-end bonus, one additional accrual on his pension calculation.

[00:12:13]Raymond thought, that makes sense. He retired on December 31st, 2023, at 65 years old. He felt good about it. He checked every box his advisor had outlined. Keep Raymond in mind. We are going to come back to him because his story ends somewhere most people do not expect. Here is something that every finance creator talks about in theory, but almost nobody applies to calendar timing, sequence of returns risk. Let me make this concrete. During your working years, the order of returns does not matter much. A 20% loss followed by a 25% gain produces a similar result as the reverse because you are not pulling money out. But, once withdrawals begin, early losses compound in a way that later gains cannot undo. That is what makes the first decade of retirement the most vulnerable period for your portfolio. Your first 5 years of retirement are the danger zone for tapping accounts during a downturn, according to Amy Arnott, a portfolio strategist with Morningstar Research Services. And here is the specific number that should make this real.

[00:13:18]If your portfolio dropped by at least 15% during your first year of retirement, and you also withdrew 3.3% of the balance, that combination would increase your odds of depleting the portfolio within 30 years by six times compared with someone who had a first-year positive return, according to a 2022 Morningstar report. Six times, not 6% more likely, six times more likely to run out of money because of market timing that you had no control over. But, here is what you do have control over, how much of your portfolio you need to draw on in that first year.

[00:13:55]If the market declines 20% in your first year, your portfolio drops significantly, and your next withdrawal represents a larger percentage of what's left, that snowball effect can shorten your retirement horizon by years. If you retire in January, you need 12 full months of withdrawals from your portfolio in year one. If you retire in April, nine months. If you retire in October, maybe three. If you retire in December, you need almost nothing from the portfolio that year. And every month your shares are not being sold at the bottom is a month they survive intact for the recovery. Think about two people who both retire in the same calendar year when the market drops 20%, which is not a fantasy, it has happened multiple times, including 2008 and 2020.

[00:14:41]The January retiree draws 12 months of living expenses from a portfolio that is actively losing value. When markets fall in the early years of retirement, you are forced to sell more shares to fund the same withdrawal at exactly the wrong time. Those shares are gone forever and cannot participate in the eventual recovery. The December retiree draws maybe one month, same market, same portfolio, same average annual return over 30 years, radically different damage, and the only variable between them is the month. This is the part where most people assume the solution is asset allocation, bonds, cash cushions, bucket strategies, and yes, all of those help. But there is also a zero-cost version of sequence risk mitigation that nobody writes books about. When the rest of your financial systems make it tax efficient to retire later in the year, do it. When they do not, retire early and reduce your first-year withdrawal exposure. The month is a lever. Pull it.

[00:15:41]Dave, my retirement plan is to not retire. Congratulations, you have solved it. Zero sequence risk, zero RMD, zero social security taxation. You have also solved the concept of enjoying your life, but let's stay focused. Here is the part that most financial planners charge several thousand dollars to walk through. The one I want you to read twice. When you retire early in the year, something remarkable happens to your income. It falls off a cliff in the best possible way. For six, seven, maybe eight months, your taxable income is close to zero. You have no wages coming in, maybe no pension yet. Maybe social security has not started. Your 401k is untouched. And in that silence is a Roth conversion window. The most valuable planning opportunity most retirees stumble into by accident or miss entirely by retiring in November. A Roth conversion means you move money from a traditional IRA or 401k, where you have not paid taxes yet, into a Roth IRA, where future growth and withdrawals are completely tax-free.

[00:16:49]You pay the tax today. The goal is always to pay that tax when your rate is lowest. And the lowest your marginal rate will ever be is almost certainly the year you retire early and have not yet started social security. In the years between retirement and claiming social security, you can convert traditional IRA funds to Roth IRA and pay income tax now. Then, when you start receiving social security, your adjusted gross income is lower because Roth withdrawals do not count as income, reducing provisional income below Social Security taxation thresholds. A couple who converts $500,000 from traditional to Roth before claiming Social Security might reduce annual provisional income by $20,000 to $30,000, keeping Social Security below or in the 50% taxable bracket versus 85%.

[00:17:41]The cost is taxes paid on conversions today. The benefit is permanently lower Social Security taxation plus lower IRMAA Medicare surcharges for life. One Roth conversion decision made possible by retiring in February instead of November can cascade through 20-plus years of retirement in your favor. Your required minimum distributions are lower. Your provisional income is lower.

[00:18:05]Your IRMAA exposure years from now is lower. And every Roth dollar you converted in a 12 or 15% bracket is a dollar that compounds tax-free for the next two decades instead of sitting in a traditional account waiting to be taxed at a higher rate in a higher income retirement year.

[00:18:22]The person who retired in November had 11 months of salary on the same return.

[00:18:28]No conversion space, no window. The launch window was closed before they even looked up. Now, let me talk briefly about pension timing because for anyone with a defined benefit plan, this is hidden in the fine print and it is the kind of thing that either costs or earns you money for 30 years. In the first system for federal employees, your pension officially begins the first day of the month after you retire. The government does not prorate pension payments. You either get paid for the month or you do not. Working one extra day into a new month cost you a full month of pension income. For many retirees, that could mean several thousand dollars forfeited simply by working a day too long. And on the other side of that equation, some pension plans credit you for an additional full year of service if you work at least one day into a new calendar year. Retire December 31st and you get the credit you already have. Retire January 2nd and some plans give you an extra year of accrued benefit paid monthly for the rest of your life. That is a permanent income increase on a number that gets paid for 20 or 30 years. The math on that particular trade is not complicated. Most federal employees can only carry over 240 hours of annual leave into a new leave year. Anything above that is considered use or lose, but if you retire before the leave year ends, there is no cap on the annual leave you can cash out. You end the year with 360 hours of annual leave, retire before the leave year ends and you're paid for all 360 hours. Retire after the leave year resets and you're only paid for 240 hours. Depending on your salary, that is often $6,000 to $12,000 lost simply because of timing. The summary plan description for most pension plans is about 90 pages long and formatted in a font that suggests the author wanted to discourage reading. If it were a book, the title would be please don't ask us about this. Let me now put real numbers behind everything I have described. Meet Marcus, 65 years old, married filing jointly. He earns $140,000 a year. His wife has a pension of $36,000 per year that begins when Marcus retires. He has $450,000 in a traditional 401k.

[00:20:47]He plans to start social security in two years, projected benefit of $30,000 annually. Marcus has two options in front of him. His company's fiscal year ends December 31st. His manager is subtly suggesting he stay through year end. Option A is retire December 31st, full year of wages $140,000.

[00:21:09]The wife's pension kicks in January 1st, so Marcus gets 11 months, $33,000.

[00:21:16]He takes a $50,000 401k distribution to fund the first year of expenses. Total modified adjusted gross income $223,000 filed jointly. Two years later, Marcus and his wife are both on Medicare. Their IRMAA determination is based on this tax return. At $223,000 as joint filers, they are just above the $218,000 tier one IRMAA threshold.

[00:21:42]The jump from no IRMAA to tier one costs a couple $2,297 per year, every year, for as long as they are both on Medicare. Over 10 years of Medicare coverage, that is $22,970 in extra premiums, based entirely on the income stack of a year Marcus no longer lives in. Option B is retire January 31st. Marcus's wages for the year, 1 month, roughly $11,667.

[00:22:12]The pension starts February 1st, 11 months of $36,033,000.

[00:22:18]He takes 30,000 from the 401k.

[00:22:21]Total modified adjusted gross income approximately $74,667.

[00:22:27]As a joint filer at $74,600, Marcus and his wife pay zero IRMAA two years later. Their Medicare premiums are standard, and Marcus has a Roth conversion window that is wide open.

[00:22:40]With his taxable income that low, he can convert $60,000 of his traditional 401k at the 12% marginal rate, paying about $7,200 in tax now, instead of waiting until a higher income year when the same conversion could cost him 14 or 15,000 in taxes. That's $7,000 in savings on one conversion in one year and future Roth growth is tax-free forever. The difference between option A and option B is not the size of Marcus' portfolio. It is not the market. It is not his Social Security timing. It is one month, 30 days, the launch window. There are three levels of how people think about all of this and most people are stuck at level one. Level one is thinking about retirement as a year. You know the year, you have modeled the portfolio, you have estimated Social Security, you have maybe talked to a planner, but the month is an afterthought. You pick it based on when your last bonus lands or when the holidays feel right or when your company's fiscal year closes. This is where the majority of Americans retire in the systems they did not optimize, paying fuel costs they did not have to pay. Level two is thinking about retirement month as a tax event. You know your income in the retirement year matters. You are aware of Roth conversions in theory, you have maybe looked at staying in a lower bracket, but you are still treating our May Social Security taxation, sequence risk, and pension timing as four separate decisions instead of one connected system. This is where most good financial advisors operate, better than level one, still leaving money on the table.

[00:24:21]Level three is treating your retirement month as a launch window. You model all four systems simultaneously. You project arm and exposure to years forward. You calculate your provisional income with and without wages. You identify the Roth conversion window that opens when salary disappears early in the year. You read the pension document and you pick the month where the trajectory, the fuel load, and the orbital mechanics all line up. Not the month that feels emotionally satisfying or the one that aligns with your boss's preference. Level three decisions compound. Level one decisions are just luck wearing a plan. Okay, Raymond the engineer December 31st, 2023. Raymond retired on that date. His last year was strong. Bonus landed in October, salary through December, one extra year on the pension calculation.

[00:25:12]He felt excellent. 18 months later Raymond received a letter from Social Security. His Medicare premium was being adjusted upward. $81.20 per month. That is $974 a year. Raymond called his advisor. The advisor said, "That is IRMAA. It is based on your 2023 income. There is not much we can do now." But there was something to do. Raymond's CPA knew about form SSA-44.

[00:25:40]His 2024 income, his first full year out of work, had dropped dramatically. They filed the appeal. Medicare used the more recent year instead. The SSA used the more recent year, potentially eliminating or reducing IRMAA. Raymond's surcharge disappeared. Raymond got lucky. Not because his situation was unusual, but because he had a CPA who read the fine print. Most people who get hit with IRMAA do not file the appeal.

[00:26:07]The frustrating part? Most retirees do not find out until they get a letter from Social Security after it is too late to do anything about it. They just pay the surcharge for years because they do not know form SSA-44 exists.

[00:26:22]Raymond's real regret was not the surcharge. His regret was what he did not do with the low income year he had in 2024.

[00:26:29]His taxable income that year was near zero. He did nothing with it. By the time someone explained the Roth conversion window to him, it was already late March. He missed six or eight weeks of conversion opportunity he will never get back. He had the perfect launch window. The trajectory was ideal. He just did not know to fire the engine.

[00:26:49]Here is what I want you to walk away with. three specific actions, not general advice, decisions tied directly to what I have covered. First, map your retirement year income before you pick a date. Add up your expected wages for the partial year, any pension or 401k distributions you will need, and half of your first year's social security if you are starting benefits that year. Compare that number to three thresholds, your tax bracket cutoff, the arm and threshold for your filing status, $190,000 single, $218,000 joint, and the provisional income threshold for social security taxation, $34,000 single, $44,000 joint. If stacking those income sources pushes you over any of those numbers, you have a month shifting opportunity available right now, and it costs nothing to take.

[00:27:40]Second, read your pension service credit rules before you assume December 31st is the right date. Some plans credit you for a full year when you work one day into a new calendar year, some do not.

[00:27:52]Some systems make early January a more powerful retirement date than late December because of how annual leave accrual rules and pension months are counted. This takes 30 minutes of reading. The return on those 30 minutes is paid monthly for the rest of your life. Third, if you retire early in the year, assume you have a Roth conversion window and calculate how large it is before you close the year.

[00:28:16]The year you retire early is often the lowest income year of your adult life.

[00:28:21]It is almost certainly the cheapest year you will ever pay taxes on a Roth conversion. Even converting 40 or $50,000 at the 12 or 15% marginal rate instead of the 22 or 24% rate you will pay in a higher income year, generates a difference that compounds over two decades of tax-free Roth growth into something significantly larger than the tax saving itself.

[00:28:44]The window opens once, use it. I have multiple hundreds of thousands of dollars invested. I spent 10 plus years running my own business, surrounded by accountants and fiscal lawyers who taught me how money actually moves, not in theory, but on real tax returns. The decisions that matter in retirement are almost never the dramatic ones, not the market timing, not the clever trade, not the crypto position. They are the quiet ones, the ones baked into a tax return before you even know what hit you. Lazy investing built more fortune than crypto memes. The month you retire is the laziest, cheapest, most underused optimization in all of personal finance.

[00:29:24]It costs nothing to change, most people never think about it, and the gap between what the system does to people who do not plan, and what it quietly rewards in people who do, is the only edge worth caring about.