A 68-Year-Old With $850,000 in a Traditional IRA Is Sitting on a Six-Figure Tax Bill. Here’s How Retirees Shrink It.

An $850,000 traditional IRA looks like a comfortable retirement stash, but every dollar inside it is still owed to the IRS at ordinary income rates. For a 68-year-old single filer, that pretax balance carries a tax liability that can easily cross into six figures depending on how and when the money comes out.

The 2026 federal brackets set the terms. A single filer pays 10% on taxable income up to $12,400, 12% up to $50,400, 22% up to $105,700, 24% up to $201,775, 32% up to $256,225, 35% up to $640,600, and 37% on anything above that. The standard deduction is $16,100 for single filers and $32,200 for married couples filing jointly. Pulling the full $850,000 out in a single year would push the top slice deep into the 37% bracket, even after subtracting that deduction.

Required minimum distributions do not begin until age 73 under current rules, giving a 68-year-old a five-year window before the IRS forces annual withdrawals. That window is where most of the tax-shrinking work happens, and it is shorter than most retirees appreciate when they first do the math.

A New Deduction That Most Retirees Are Not Using Yet

The One Big Beautiful Bill Act, signed into law on July 4, 2025, added a temporary senior deduction of up to $6,000 per qualifying individual for tax years 2025 through 2028. The deduction applies to taxpayers age 65 and older and stacks on top of both the standard deduction and the existing age-65 additional standard deduction (which is $2,050 for single filers in 2026), and it is available whether the filer itemizes or takes the standard deduction. A married couple filing jointly can qualify for up to $12,000 combined. The deduction begins to phase out for modified adjusted gross income above $75,000 for single filers and $150,000 for joint filers, and it disappears entirely at $175,000 and $250,000, respectively.

For a 68-year-old with a large traditional IRA, this deduction reshapes the conversion math during the gap years before RMDs begin. Keeping taxable income below the phaseout threshold while executing Roth conversions lets the filer claim the full $6,000 each year through 2028, compounding the benefit over multiple tax years. Tax advisors note that many retirees have not yet built this deduction into their planning cycles.

Roth Conversion Ladders in the Gap Years

The standard playbook is a partial Roth conversion each year between retirement and the RMD starting age. The retiree moves a slice of the traditional IRA into a Roth, pays ordinary income tax on the converted amount, and permanently removes that money from future RMD calculations. Those converted balances then grow tax-free and can pass to heirs without triggering income tax on the way out.

Bracket management drives the sizing decisions. Converting just enough to fill the 12% bracket (taxable income up to $50,400 for a single filer) or the 22% bracket (up to $105,700) prepays tax at a lower rate than a forced future withdrawal might trigger. Over five years, a single filer topping off the 22% bracket could convert roughly $90,000 annually and make a meaningful dent in the traditional IRA before RMDs begin. Factoring in the new $6,000 senior deduction, those conversion amounts can stretch slightly further without crossing into a higher bracket.

Qualified Charitable Distributions After 70.5

Starting at age 70.5, IRA owners can route money directly from the IRA to a qualified charity through a Qualified Charitable Distribution. The 2026 annual limit is $111,000 per individual, up from $108,000 in 2025. QCDs count toward the RMD once RMDs begin, and the transferred amount is excluded from adjusted gross income entirely. For a retiree already inclined to give, routing money directly from the IRA to a charity beats taking the RMD, paying income tax on it, and then donating the after-tax remainder.

QCDs also hold down AGI, which governs the taxability of Social Security benefits, Medicare IRMAA surcharges, and the portion of long-term capital gains taxed at 0%. Each lever that holds AGI below a key threshold compounds the savings elsewhere in the return.

Timing Social Security and Watching AGI

The 2026 Social Security COLA is 2.8%, lifting benefit checks to keep pace with inflation. Every dollar of Social Security added to income can pull up to 85 cents of that dollar into taxable income once combined income crosses the statutory thresholds. A retiree living off portfolio income during the gap years and delaying Social Security until age 70 keeps AGI low enough to make larger Roth conversions cheaper, often by thousands of dollars per year.

Bracket thresholds adjust for inflation each year. Social Security’s taxability thresholds and the IRMAA cliffs do not, quietly pulling more retirees into higher-cost tiers over time. Recognizing that asymmetry is, by itself, a planning advantage.

What the Numbers Look Like in Practice

The Bureau of Labor Statistics puts average annual household expenditures at $78,535 in 2024. Per capita disposable income was $68,391 in the first quarter of 2026. A retiree spending near those figures does not need to withdraw the entire $850,000 quickly, which preserves room for a multi-year conversion plan structured to keep income below the senior deduction phaseout each year.

The 10-year Treasury yield climbed to around 5% in mid-September 2026, its highest level since 2007, after the Federal Reserve restarted its rate-hiking cycle. Interest from bonds held inside a traditional IRA becomes ordinary income when distributed through RMDs. Shifting growth assets into the Roth side during conversions tends to leave the tax-inefficient bond holdings in the traditional account, which improves the overall after-tax outcome. With yields now materially higher than they were even a few months ago, the bond-versus-growth allocation question inside the IRA carries real weight.

The Takeaway

The six-figure tax bill attached to an $850,000 traditional IRA depends on when the money comes out, in what size chunks, alongside what other income, and whether any of it is redirected before it becomes taxable. The five-year window between age 68 and the start of RMDs at 73 offers the most control a retiree will get over this decision. The One Big Beautiful Bill’s temporary senior deduction adds a new, time-sensitive reason to act before 2028. Once RMDs begin, the IRS starts making the timing decisions instead.

Editor’s note: This update corrects the 10-year Treasury yield to reflect mid-September 2026 levels of approximately 5%, the highest since 2007 following the Federal Reserve’s September 2026 rate hike, and adds the full phaseout range for the One Big Beautiful Bill Act’s senior deduction ($175,000 for single filers and $250,000 for joint filers) along with the 2026 age-65 additional standard deduction amount of $2,050 for single filers.

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