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The Retirement Tax Mistake That Can Quietly Cost Savers Thousands
Global Market News ^ | 09/05/2026

Posted on 09/06/2026 7:05:50 PM PDT by SeekAndFind

Retirement tax planning requires decisions today based on tax rates, investment returns and personal circumstances that may not become clear for decades. The wrong Roth conversion can create an unnecessary tax bill, while waiting too long can leave retirees trapped by required withdrawals and higher lifetime taxes.

The Problem Hiding Inside Traditional Retirement Accounts

Traditional IRAs and 401(k)s offer an attractive bargain during a worker’s highest-earning years: contribute pretax dollars today and defer the tax until retirement.

For disciplined savers, that bargain can eventually become complicated.

Decades of contributions and investment gains can produce an account large enough to generate substantial required minimum distributions, or RMDs. Those withdrawals are generally taxed as ordinary income, whether the retiree needs the money or not.

RMDs currently begin at age 73 for people born from 1951 through 1959. The starting age rises to 75 for those born in 1960 or later.

A large required withdrawal can do far more than increase an investor’s federal income-tax bill. Additional income may cause more Social Security benefits to become taxable, raise Medicare premiums, reduce the value of certain deductions and make other investment income more expensive.

That creates a frustrating reality: A retirement account can be highly successful from an investment perspective while becoming increasingly inefficient from a tax perspective.

The central challenge is timing. Savers must decide whether to pay taxes now through Roth contributions or conversions, or defer those taxes and accept whatever rates and rules exist later.

Congress makes that decision harder. Total U.S. public debt crossed $40 trillion in 2026, intensifying the long-term possibility of higher tax rates, narrower deductions or entirely new sources of federal revenue. None of those outcomes is guaranteed, but ignoring the risk is its own tax bet.

Your Tax Bracket Is Only the First Number That Matters

Most Roth conversion decisions begin with a comparison between two rates:

  1. The tax rate paid on the conversion today.

  2. The expected tax rate on the money when it is eventually withdrawn.

If an investor can convert money at 12% today and reasonably expects to pay 22% later, the conversion may be attractive. Paying 32% today to avoid a likely 22% rate later is much harder to justify.

That simple comparison is useful, but incomplete.

A large conversion increases adjusted gross income in the year it occurs. That increase can trigger several secondary costs:

Investors should therefore focus on the effective marginal cost of a conversion, rather than looking only at the published federal tax bracket.

A retiree technically in the 22% bracket might face a meaningfully higher effective rate once Medicare surcharges and taxes on additional Social Security income are included. A conversion that appears sensible on the surface can become expensive after those interactions are counted.

The Retirement Tax Window Most Savers Miss

For many investors, the best opportunity for Roth conversions appears during the years immediately after retirement.

Earned income may decline sharply once a person stops working. At the same time, Social Security may not have started and RMDs may still be years away. That can create a temporary period of unusually low taxable income.

This is the retirement tax window.

Suppose a couple retires at 64 with substantial traditional IRA balances. They delay Social Security and do not face RMDs until age 73 or 75. During the intervening years, they may have room to convert portions of their traditional IRAs while remaining inside relatively moderate tax brackets.

Once Social Security and RMDs begin, that opportunity can narrow or disappear.

The goal should rarely be to convert an entire traditional IRA as quickly as possible. A more controlled approach is to convert enough each year to use a targeted tax bracket without unnecessarily crossing into a significantly more expensive one.

This allows investors to spread the tax bill across multiple years while gradually reducing future RMDs.

Why a Market Crash Changes the Calculation

Roth conversions carry an investment risk that receives too little attention.

Taxes on a conversion are based on the account’s value when the conversion occurs. If an investor converts $200,000 and the converted assets subsequently fall to $140,000, the original tax bill does not fall with the portfolio.

Current law generally does not allow a completed Roth conversion to be reversed through recharacterization.

That makes conversion timing important. Investors who convert a very large amount after an extended market rally may be exposing themselves to both a high tax bill and near-term market risk.

One practical response is to divide a planned annual conversion into several smaller transactions. This cannot eliminate market risk, but it reduces the chance that the entire conversion occurs near a temporary market high.

A downturn can also create an opportunity. Converting depressed assets allows investors to move more shares into a Roth account for the same taxable dollar amount. If the assets recover, the subsequent growth can occur inside the Roth.

Traditional accounts offer a different form of downside protection. When account values decline, future taxable withdrawals and RMDs may decline as well. In effect, the government shares in a portion of the loss through lower future tax revenue.

That is one reason a full conversion is not automatically the safest choice.

Already Taking RMDs? Conversions Are Still Possible

Retirees who have started RMDs can continue converting traditional IRA funds to Roth accounts.

The required distribution itself cannot be converted. The full RMD must generally be withdrawn first, and any conversion occurs afterward.

This can make conversions more expensive because the RMD has already consumed part of the retiree’s lower tax brackets. A conversion added on top of that income may face a higher marginal rate or trigger additional Medicare costs.

Even so, partial conversions may remain useful when they reduce future RMDs, protect a surviving spouse from higher single-filer tax rates or improve the tax treatment of an inheritance.

The analysis should consider lifetime family taxes, rather than focusing exclusively on the account owner’s current-year bill.

The Charitable Strategy That Can Beat a Roth Conversion

Charitably inclined IRA owners have another powerful option.

Beginning at age 70½, eligible IRA owners can make qualified charitable distributions, or QCDs, directly from an IRA to qualifying charities. The annual QCD limit is $111,000 in 2026.

A QCD can satisfy all or part of an RMD without adding the distributed amount to adjusted gross income.

That distinction is valuable. A regular IRA withdrawal followed by a charitable donation increases gross income first and depends on the taxpayer receiving an offsetting deduction. A QCD keeps the eligible distribution out of adjusted gross income entirely.

This can help limit Medicare surcharges, the taxation of Social Security benefits and other income-based costs.

For an investor who expects to donate traditional IRA assets to charity, paying tax to convert those dollars to a Roth may be counterproductive. A charity can generally receive traditional IRA money without owing income tax, either through QCDs during the owner’s lifetime or as a designated beneficiary.

Charitable intent can therefore justify keeping part of a traditional IRA intact.

Long-Term Care Creates a Surprising Reason to Preserve Taxable IRA Money

Retirees without long-term care insurance should also be cautious about converting every available traditional IRA dollar.

Qualified long-term care expenses can count as deductible medical expenses when the taxpayer itemizes deductions, subject to applicable rules and the threshold of 7.5% of adjusted gross income. Because nursing care and other qualified services can be extremely expensive, some retirees may accumulate substantial medical deductions.

Traditional IRA withdrawals used to pay those expenses create taxable income that may be partially offset by the medical deductions.

Roth withdrawals do not create taxable income. That is normally an advantage, but it also means large medical deductions could go unused if the retiree has little taxable income available to offset.

Keeping a reserve in traditional accounts may provide tax-efficient funding for future care. The appropriate amount depends on insurance coverage, health, other income sources and the likelihood of itemizing medical expenses.

Tax Diversification May Be More Valuable Than Tax Minimization

The obvious objective is to pay the lowest possible tax rate. The stronger objective is to preserve flexibility across several possible futures.

Taxable brokerage accounts provide accessible assets and preferential rates on qualified dividends and long-term capital gains, although they can generate annual taxable income.

Traditional retirement accounts provide an upfront deduction and defer taxes, but eventually produce ordinary income and RMDs.

Roth accounts require after-tax contributions or taxable conversions, while offering tax-free qualified withdrawals and no lifetime RMDs for the original owner.

Holding money across all three account types allows retirees to choose where their spending money comes from each year.

During a high-income year, a retiree may draw from Roth funds. During a low-income year, traditional withdrawals or conversions may fill unused tax brackets. Taxable assets can provide additional flexibility and may receive favorable treatment when passed to heirs under current law.

This flexibility has an option value. It reduces dependence on any single prediction about Congress, investment returns, longevity or future spending.


TOPICS: Business/Economy; Society
KEYWORDS: 401k; ira; retirement; rmd

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1 posted on 09/06/2026 7:05:50 PM PDT by SeekAndFind
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To: SeekAndFind

Fed.gov technocrat-progressive-socialist central planning has turned our tax code into a giant hairball

The expenditure, waste, and fraud that is caused by tax-rule gaming is outrageous

Its complexity also nearly guarantees that lower IQ and lower income Americans will remain exactly as that.


2 posted on 09/06/2026 7:21:35 PM PDT by PGR88
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To: SeekAndFind

My father was an accountant. He always said why pay taxes now when you can pay them later.
I complained about how much tax I was paying he said, I hope you pay more next year


3 posted on 09/06/2026 7:21:51 PM PDT by zeebee
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To: SeekAndFind

I started converting 401k money to a Roth this year. I am pretty sure once the socialists take over, the tax rates are going up.


4 posted on 09/06/2026 7:25:39 PM PDT by crusty old prospector
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To: zeebee

Wise father... be thankful.


5 posted on 09/06/2026 7:44:22 PM PDT by GOPJ (DSA : Daddy's Savings Account Deadbeat Scammers of America (freeperLibloather) Moketchups.com)
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To: SeekAndFind

Bump for reference on taxation problems.


6 posted on 09/06/2026 7:55:45 PM PDT by MeneMeneTekelUpharsin (Freedom is the freedom to discipline yourself so others don't have to do it for you.)
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To: SeekAndFind

Worry about IRRMA if you plan to pull 112K a year. Single

Otherwise just pay normal tax and don’t convert anything.
This advice is for people with multi-millions.


7 posted on 09/06/2026 7:59:00 PM PDT by eyedigress (Trump is my President!)
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To: PGR88

My head hurts after reading that.


8 posted on 09/06/2026 8:07:04 PM PDT by CaptainK ("No matter how cynical you get, it is impossible to keep up” )
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To: SeekAndFind

Something to keep in mind, if the Socialists gain power those 37% marginal tax rates might look pretty good, compared to what they will be when it comes time to take the RMDs.


9 posted on 09/06/2026 8:10:07 PM PDT by dfwgator ("I am Charlie Kirk!")
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To: CaptainK

My head hurts after reading that.


It’s supposed to, that’s why we have financial planners.


10 posted on 09/06/2026 8:15:59 PM PDT by dfwgator ("I am Charlie Kirk!")
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To: PGR88

Inflation over the last 50 years totally screws up selling real estate purchased 50 years ago.


11 posted on 09/06/2026 8:33:34 PM PDT by Paladin2 (YMMV)
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To: SeekAndFind

.


12 posted on 09/06/2026 9:49:38 PM PDT by redinIllinois (Pro-life, accountant, gun-totin' Grandma - multi issue vor in)
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To: SeekAndFind

It’s much easier if you don’t have bupkis.


13 posted on 09/07/2026 12:56:02 AM PDT by Track9 (Liberal tears make me smile. Thank you DJT! ABM = anything but muslim )
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To: Track9

Hormuz minefield seems easier than this crap


14 posted on 09/07/2026 1:36:40 AM PDT by George from New England (escaped CT back in 2006)
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To: SeekAndFind

I chose the traditional IRA 30 years ago and never converted to the Roth IRA because Congress can always decide to impose a tax on the Roth IRA.


15 posted on 09/07/2026 4:09:49 AM PDT by bort
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To: SeekAndFind

I do a backwards tax computation for clients, backing into the optimum retirement withdrawal or conversion amount.

I do this by treating the tax brackets like a layer cake, with the base layer being the zero percent bracket, representing the standard deduction and other deductions from income.

The next layer is is the 10% bracket, ...

By presenting it this way, I can show them the marginal tax rate on their additional income created by the withdrawal or conversion. By super imposing the tax bracket amounts on the layer cake it is easy to determine the optimum additional income that can be sheltered in the lower brackets.

It gets a bit tricky when capital gains and qualified dividends are excluded from income or Social Security benefits are being taxed.

It is easiest to just run a pro-forma current year tax return using last year’s tax software.


16 posted on 09/07/2026 5:01:34 AM PDT by tired&retired (Blessings )
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To: tired&retired

Feel like giving some free advices? I have a 26 year old son. I am going to have him open a Roth IRA probably at Fidelity, just because. I am going to give him the max $7500 to invest, and I intend to do this every year until I die. I think we will go with EFTs. (I know nothing about investing and this plan is developed primarily with AI.) What do you think about this plan?


17 posted on 09/07/2026 5:24:28 AM PDT by suthener ( I do not like living under our homosexual, ghetto, feminist government.)
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To: SeekAndFind

“Most Roth conversion decisions begin with a comparison between two rates:

The tax rate paid on the conversion today.
The expected tax rate on the money when it is eventually withdrawn.”

Quite sure that Roth withdrawals are not taxed at all.


18 posted on 09/07/2026 5:35:58 AM PDT by DennisR (Look around - God gives countless clues that He does, indeed, exist.)
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To: zeebee

I say why pay taxes now or later when you can avoid them altogether?

I’ve been redeeming my IRAs annually and not paying any taxes because of my low income rather than waiting when I’m required under the RMD.


19 posted on 09/07/2026 5:43:50 AM PDT by ReganFan4ever (Jesus saves. Moses invests.)
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To: zeebee

The biggest mistake retirees make is allowing their money to grow. You should be spending the growth. You are going to pay taxes regardless. You may as well have fun with it. If you have $1M, you should be drawing $4k a month.


20 posted on 09/07/2026 6:00:01 AM PDT by AppyPappy (They don't call you a Nazi because they think you are one. They do it to justify violence. )
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