Every April, millions of Americans celebrate a small tax bill as a win.
Their accountant calls with good news. They owe $3,200 this year. Everyone’s relieved. Nobody
asks the harder question.
What is your lifetime tax bill going to be?
That is the question that determines whether retirement is comfortable or complicated. And
almost nobody is answering it.
As a CPA with nearly 30 years of experience in retirement planning, I have watched countless
families minimize their taxes in their 50s and 60s — only to face an unexpected and
unavoidable tax reckoning in their 70s. The culprit is almost always the same: a tax-deferred
IRA or 401(k) that grew quietly for decades, until the IRS started sending withdrawal notices.
Minimizing your taxes this year and minimizing your taxes over your lifetime are two
completely different strategies. Almost no one tells you that.
This is your guide to understanding why long-term tax planning for retirement is not a luxury — it
is the most important financial conversation you are not having.
What Most People Mean by ‘Tax Planning’ — And Why It’s Not Enough
Traditional tax planning is reactive. You gather your W-2s, 1099s, and receipts. Your CPA finds
every deduction available. You file, you pay (or get a refund), and you move on.
That is not tax planning. That is tax reporting with a few deductions.
True tax planning — especially for retirement — is proactive and spans decades. It asks
questions that have nothing to do with this April’s return:
• What will my Required Minimum Distributions (RMDs) force me to withdraw at 73 —
whether I want to or not?
• Will those forced withdrawals push me into a higher Medicare premium bracket
(IRMAA)?
• What is the total tax my heirs will pay when they inherit my IRA?
• Am I paying tax now at 22% on money that will be taxed at 32% later?
• Is my Social Security benefit being taxed because of income that a little planning could
have reduced?
These are the questions that determine how much of your retirement savings you actually keep.
And they are almost never asked during an annual tax appointment.
The Tax Time Bomb Hidden in Your IRA
Here is a scenario I see regularly in my practice.
A client spends 35 years faithfully contributing to a traditional 401(k) or IRA. They take the
deduction every year. Their accountant applauds the discipline. The account grows to $1.2
million, $1.8 million, $2.4 million.
Then they retire. For a few years, life is good. Their income is lower, their tax bill is smaller, and
they feel like they’ve finally won.
Then age 73 arrives. And so does the IRS.
Understanding RMDs: The Withdrawal the IRS Controls, Not You
Under current law, you must begin taking Required Minimum Distributions (RMDs) from your
traditional IRA and 401(k) at age 73 for most current retirees (rising to age 75 for those born in
1960 or later, per SECURE 2.0). These are not optional. The IRS calculates the amount based
on your account balance and life expectancy — and whether you need the money or not, you
must take it.
For a retiree with $2 million in pre-tax accounts, the first year’s RMD might be $75,000 or more.
Add Social Security, a pension, or investment income, and suddenly a retiree who felt
comfortable in the 22% bracket is staring at a 32% marginal rate — and Medicare surcharges
on top of that.
The money in your traditional IRA was never fully yours. You have been holding it in
trust for the IRS. The question is whether you pay the tax on your terms — or theirs.
IRMAA: The Medicare Surcharge Most Retirees Never See Coming
One of the most expensive surprises in retirement has nothing to do with the stock market. It is
called IRMAA — the Income-Related Monthly Adjustment Amount — and it is a surcharge
added to your Medicare Part B and Part D premiums when your income exceeds certain
thresholds.
$109,000 — 2026 IRMAA threshold for single filers (based on your 2024 tax return)
$218,000 — 2026 IRMAA threshold for married filing jointly
Cross those lines — even by one dollar — and your Medicare Part B premium jumps from the
standard $202.90 to $284.10 per month. Keep climbing the income ladder and you can reach
$689.90 per month. Part D carries additional IRMAA surcharges as well. For a married couple
both affected, that is potentially over $16,000 per year in Medicare premiums alone.
Here is the planning challenge that makes IRMAA so dangerous: it operates on a two-year
lookback. Your 2026 Medicare premiums are based on your 2024 tax return. A Roth conversion,
a large RMD, or a capital gains event in 2024 can trigger a premium increase two years later —
long after the income is gone.
This is why income management isn’t just about taxes. Every dollar of income in retirement
has a potential downstream cost attached to it that most retirees never calculate.
The Roth Conversion Window: The Most Powerful Tax Strategy Most People Miss
Between retirement and the start of RMDs, there is a period that sophisticated retirement
planners call the Golden Window. It is typically the years between age 60 and 72 — after
earned income stops but before forced distributions begin.
During this window, many retirees are in a temporarily lower tax bracket. They have reduced
income, and their pre-tax accounts have not yet started throwing off mandatory withdrawals.
This is the ideal time to convert traditional IRA money to a Roth IRA.
How a Roth Conversion Works
A Roth conversion means moving money from a traditional, pre-tax IRA into a Roth IRA. You
pay income tax on the converted amount in the year of conversion — but everything in the Roth
then grows and can be withdrawn completely tax-free, including for your heirs.
The math often looks like this: Pay tax at 22% now on a conversion of $60,000. Shrink the
pre-tax IRA. Reduce future RMDs. Stay below the IRMAA cliff. Eliminate the tax bill for your
children when they inherit. That is four separate wins from one well-timed move.
2026 Tax Brackets to Know (Taxable Income)
The table below shows the full 2026 federal income tax bracket structure, sourced directly from
IRS Revenue Procedure 2025-32. Note that these apply to taxable income — the amount
remaining after deductions. For Roth conversion planning, the key target brackets are 12% and
22%.
| Tax Rate (%) | Single Filers (Taxable Income) | Married Filing Jointly (Taxable Income) |
|---|---|---|
| 10% | Up to $12,400 | Up to $24,800 |
| 12% | $12,401 – $50,400 | $24,801 – $100,800 |
| 22% | $50,401 – $105,700 | $100,801 – $211,400 |
| 24% | $105,701 – $201,775 | $211,401 – $403,550 |
| 32% | $201,776 – $256,225 | $403,551 – $512,450 |
| 35% | $256,226 – $640,600 | $512,451 – $768,700 |
| 37% | Over $640,600 | Over $768,700 |
Source: IRS Revenue Procedure 2025-32 (One Big Beautiful Bill inflation adjustments). Taxable income = AGI minus
standard or itemized deductions.
The strategic goal: fill the 12% and 22% brackets with Roth conversions during the years they
are available. For a married couple with a $100,000 taxable income, the entire 12% bracket
through $100,800 may already be in use — but there may be room to convert up to $211,400
before reaching the 24% threshold. Every dollar converted at 22% is a dollar that will never be
forced out at 32% — or taxed in your children’s hands at whatever rate applies to them.
What Changed in 2025 and 2026: New Laws Every Retiree Needs to Know
Two significant pieces of legislation have reshaped the retirement tax landscape and create
both new opportunities and new pitfalls.
The One Big Beautiful Bill (Signed July 4, 2025)
The Tax Cuts and Jobs Act provisions — which many financial planners had spent years
preparing clients to manage around — were extended and in some cases made permanent by
the One Big Beautiful Bill, signed into law in July 2025. For retirees, the most relevant changes
include:
• The TCJA tax rates and brackets remain in place, avoiding the rate increases that would
have hit retirees with higher income.
• The federal estate and gift tax exemption rose to $15 million per individual ($30 million
for married couples) in 2026, meaningfully expanding wealth transfer options.
• The annual gift tax exclusion remains $19,000 per recipient in 2026 — a valuable tool for
reducing taxable estates while helping family members now.
• The SALT deduction cap increased to $40,000 for tax years 2025 through 2028 (subject
to phaseout for MAGI above $500,000), which may make itemizing worthwhile for some
retirees in high-tax states for the first time in years.
The New $6,000 Senior Bonus Deduction
Effective for the 2025 tax year (filed in early 2026), Americans aged 65 and older may be
eligible for an additional “Senior Bonus Deduction” of $6,000 per person — $12,000 for a
married couple where both spouses qualify.
This deduction is available whether you take the standard deduction or itemize, and it is in
addition to the existing age-65 deduction enhancement. However, it begins to phase out at
$75,000 MAGI for single filers and $150,000 MAGI for joint filers, and is currently available
through 2028 only.
For a married couple both aged 65+ in 2026, the combined deductions could stack up
as follows: $32,200 (standard deduction) + $3,300 (existing age-65 additional deduction
at $1,650 per spouse) + $12,000 (new senior bonus deduction at $6,000 per person) =
$47,500 in total deductions before a dollar of taxable income is calculated — provided MAGI stays below the $150,000 phaseout threshold. Source: IRS Revenue Procedure 2025-32; IRS.gov senior deduction guidance.
The Lifetime Tax Plan: 5 Questions a Real Strategy Answers
A genuine long-term retirement tax plan is not a spreadsheet. It is a multi-decade framework
that answers specific questions about your specific situation. Here are the five questions it must
address:
1. What will my RMDs be — and at what tax cost?
Project your required minimum distributions beginning at age 73 (or 75 if born in 1960 or later),
using your current pre-tax account balances and expected growth. If those RMDs will push you
into a higher bracket or trigger IRMAA, you have years right now to reduce the balance through
conversions, qualified charitable distributions (QCDs), or strategic withdrawals.
2. Am I using the Roth conversion window?
Every year between retirement and RMD age is a potential conversion opportunity. The question
is how much to convert, at which bracket, while staying below the IRMAA cliff. This requires
year-by-year income modeling — not a one-time calculation.
3. How will Social Security be taxed?
Up to 85% of your Social Security benefit can be subject to federal income tax depending on
your combined income. Coordinating when you take Social Security, how much you convert to
Roth in a given year, and how you structure withdrawals can meaningfully reduce the portion of
your benefit that is taxed.
4. What is the tax bill I am leaving my heirs?
Under current law, most non-spouse beneficiaries who inherit a traditional IRA must withdraw
the entire balance within 10 years. If your child inherits a $600,000 IRA in their peak earning
years, they could be paying tax on those withdrawals at 32% or higher. A Roth conversion you
do today at 22% is a gift you give them at their expense.
5. Am I taking full advantage of what changed?
Tax law changes regularly. The senior bonus deduction, the IRMAA thresholds, the catch-up
contribution rules for ages 60 to 63 under SECURE 2.0 — these are not permanent features of
the landscape. A plan that was optimal in 2022 may be leaving money on the table in 2026.
The Data Is Clear: Planning Makes a Measurable Difference
This is not financial philosophy. The numbers bear it out.
63% of people with a written financial plan feel financially stable (Schwab Modern
Wealth Survey)
28% of people without a written plan report the same stability
The same market. The same economy. The same interest rates.
The difference between financial anxiety and financial confidence in retirement is often not the
size of the portfolio. It is whether someone did the work to model what the future actually looks
like — and built a strategy around that projection rather than last year’s tax return.\
The Bottom Line
Tax season is the right time to file your return. It is the wrong time to think your tax strategy is
complete.
The decisions that will have the greatest impact on your retirement income are rarely made in
April. They are made in the years between retirement and RMD age, when your income is
temporarily lower, your brackets are temporarily favorable, and the options available to you are
still open.
Once RMDs begin, the IRS is in the driver’s seat. The time to plan is before they get there.
The goal of retirement tax planning isn’t to minimize your bill this April. It’s to minimize
the total amount you pay the IRS over the rest of your life — while maximizing what you
keep, what you spend, and what you leave behind.
If you are within 10 years of retirement — or already there — and you have not had a formal
conversation about your lifetime tax strategy, now is the time to start.
Disclosure & Disclaimer
This article is for informational and educational purposes only and does not constitute personalized tax, legal, or
financial advice. Tax laws are subject to change. All figures referenced — including 2026 tax brackets (IRS Revenue
Procedure 2025-32), IRMAA thresholds, RMD ages, standard deduction amounts, and the senior bonus deduction —
are based on current law as of the publication date. The senior bonus deduction phases out above $75,000 MAGI
(single) / $150,000 MAGI (joint) and is currently available for tax years 2025–2028 only. Please consult a qualified
CPA or tax professional regarding your individual situation. Kurt Supe is a CPA and retirement planning specialist at
Creative Financial Group. Creative Financial Group is not a fee-only firm.
About the Author
Kurt Supe is a CPA and co-founder of Creative Financial Group (CFG), a retirement planning firm based
in Indiana with approximately 1,500 client households. With nearly 30 years of experience integrating tax
strategy with retirement income planning, Kurt writes and speaks regularly on retirement, taxes, and the
financial decisions that matter most in the decade before and after you stop working.