Charmaine A. Gray v. Commissioner of Internal Revenue

Taxpayer's $4,917 Mistake: Court Upholds IRS on Social Security Benefits Taxation

The Tax Court has delivered a stark reminder to retirees: Social Security benefits are taxable income, and failing to report them can cost thousands. In Charmaine A. Gray v. Commissioner (T.C. Memo. 2026-61), the court sided with the IRS, upholding a $4,917 deficiency for the 2022 tax year after Gray omitted her $26,268 in Social Security benefits from her return. The case underscores the IRS’s unyielding stance on the taxation of Social Security benefits under Section 86 of the Internal Revenue Code, a provision that has remained a flashpoint for retirees since its enactment in 1983.

The court’s decision is final: Social Security benefits are taxable income, and the IRS has the authority to enforce this rule. The case serves as a cautionary tale for taxpayers who assume their benefits are tax-free, particularly as the IRS ramps up audits targeting unreported Social Security income. For practitioners, it highlights that the Tax Court will not hesitate to uphold deficiencies when taxpayers disregard the law.

The Story: A Taxpayer's Oversight on Social Security Benefits

The case began with a simple oversight that ballooned into a $4,917 deficiency when the IRS caught up with an Iowa retiree’s 2022 tax return. On April 15, 2023, the petitioner filed her Form 1040-SR for tax year 2022, reporting $65,085 in wages from Stine Seed Co. as shown on her Form W-2, but omitting $26,268 in Social Security benefits listed on her Form SSA-1099. The petitioner, a resident of Des Moines, Iowa, claimed the standard deduction and reported no adjustments to her adjusted gross income, resulting in $50,385 of taxable income.

The IRS did not act immediately. It was not until June 23, 2025, more than two years after the return was filed, that the agency issued a Notice of Deficiency asserting that the petitioner should have included $22,328 of her Social Security benefits as taxable income under Section 86, which governs the taxation of Social Security benefits. The IRS calculated that this omission created a deficiency of $4,917 for tax year 2022.

The petitioner responded by filing a Petition with the United States Tax Court, arguing that her Social Security benefits were not taxable. The case was then set for trial, but on May 11, 2026, the parties filed a motion under Rule 122 to submit the case fully stipulated for decision without trial. This procedural posture meant that the court would decide the case based solely on the agreed-upon facts and legal arguments, without any evidentiary hearing or witness testimony. The stipulation preserved the petitioner’s residence in Iowa, which established that any appeal would lie to the U.S. Court of Appeals for the Eighth Circuit under Section 7482(b)(1)(A).

The Dispute: Taxpayer vs. IRS on Social Security Benefits

The parties’ dispute hinged on whether the petitioner’s Social Security benefits were taxable under Section 86, which governs the inclusion of such benefits in gross income. The petitioner, a resident of Iowa, argued that her $22,328 in Social Security benefits were not taxable because they fell below the $25,000 threshold she claimed was established in 1983. She further contended that taxing her benefits constituted "double taxation"—a position she framed as both unfair and legally unsupported—since she had already paid Social Security payroll taxes on her wages during her working years. Her argument rested on the assertion that Section 86’s thresholds were intended to shield low-income retirees from taxation, not to tax benefits that were already subject to prior taxation.

The IRS, in contrast, took the position that Section 86 mandates partial taxation of Social Security benefits when a taxpayer’s modified adjusted gross income (MAGI) exceeds statutorily defined thresholds. The agency pointed to the plain language of Section 86(a)(1), which explicitly includes Social Security benefits in gross income, and Section 86(b)(1), which sets the inclusion thresholds at $25,000 for single filers and $32,000 for married taxpayers filing jointly. The IRS further argued that the petitioner’s MAGI of $65,085, when combined with half of her Social Security benefits, exceeded the adjusted base amount of $34,000, triggering the 85% inclusion rule under Section 86(a)(2). The agency’s position was reinforced by the fact that the petitioner’s total Social Security benefits of $26,268—not the taxable portion—exceeded the $25,000 threshold she cited, making her argument about the threshold’s applicability moot.

The IRS also rejected the petitioner’s "double taxation" claim, citing Section 86’s legislative history and binding precedent from the Tax Court and federal appellate courts. The agency emphasized that Social Security benefits are not a return of previously taxed wages but rather transfer payments funded by the Social Security Trust Fund, which Congress has explicitly authorized to be taxed under Section 86. The IRS’s argument relied on Section 86(d)(1), which defines Social Security benefits as includible in gross income, and Section 86(c)(1), which sets the statutory base amounts for inclusion. The agency further noted that the Tax Court has repeatedly rejected constitutional challenges to Section 86, including arguments based on double taxation, in cases such as McAdams v. Commissioner, 118 T.C. 373 (2002), and Kelley v. Commissioner, T.C. Memo. 2021-2.

The Court's Logic: Why Section 86 Prevails

The Tax Court’s reasoning in this case hinged on the plain language of the Internal Revenue Code, the statutory framework of Section 86, and the longstanding precedent rejecting constitutional challenges to the taxation of Social Security benefits. The court did not invent new law; it applied the existing statutory scheme with precision, leaving no room for the petitioner’s arguments about double taxation or constitutional infirmity.

The analysis began with the bedrock principle of gross income under Section 61(a), which defines gross income as "all income from whatever source derived." The court noted that this broad definition includes Social Security benefits, as explicitly stated in Section 86(a)(1). The petitioner did not dispute that her benefits were subject to taxation; instead, she argued that the specific inclusion rules in Section 86 violated constitutional principles and amounted to double taxation. The court rejected these arguments, emphasizing that Section 86 was enacted by Congress as part of the Social Security Amendments of 1983 and has been consistently upheld by courts for over four decades.

The court walked through the mechanical calculation of taxable Social Security benefits under Section 86, a process the petitioner had misunderstood. The statute’s inclusion rules are triggered when a taxpayer’s modified adjusted gross income (MAGI), as defined in Section 86(b)(2), combined with one-half of the Social Security benefits received, exceeds the statutory base amount for the taxpayer’s filing status. For the petitioner, a single filer, the base amount was $25,000, and the adjusted base amount was $34,000.

The court applied the two-tiered inclusion formula under Section 86(a). It determined that the petitioner’s MAGI ($65,085) plus one-half of her Social Security benefits ($13,134) totaled $78,219, exceeding the adjusted base amount of $34,000 and triggering the 85% inclusion rule under Section 86(a)(2). The taxable amount was the lesser of:

1. 85% of the Social Security benefits received ($26,268 × 85% = $22,328), or
2. The sum of (i) 85% of the excess of the combined income over the adjusted base amount ($78,219 − $34,000 = $44,219 × 85% = $37,586), plus (ii) the lesser of one-half of the benefits ($13,134) or one-half of the difference between the adjusted base amount and the base amount ($4,500).

The court found that the first calculation ($22,328) yielded the lesser amount, making it the taxable portion of the petitioner’s benefits. The result was a direct application of the statute’s plain language, not a matter of judicial discretion.

The petitioner’s "double taxation" argument—that she had already paid Social Security payroll taxes on her wages and should not be taxed again on her benefits—was swiftly rejected. The court cited McAdams v. Commissioner, 118 T.C. 373, 379 (2002), which held that "section 86 does not suffer any constitutional infirmities" and that the taxation of Social Security benefits is a legitimate exercise of Congress’s taxing power. The court reiterated that Social Security benefits are not a return of previously taxed wages but rather a government transfer payment, and thus their taxation does not constitute double taxation. The court also rejected the petitioner’s constitutional challenge, stating that Congress had a rational basis for distinguishing between filing statuses in setting the base amounts, even if the result appeared inequitable in a particular case.

Finally, the court addressed the petitioner’s claim that the $25,000 threshold provided a simple exclusion for benefits below that amount. The court clarified that Section 86 does not work that way. The threshold is merely the trigger point for inclusion, not an exclusion. The petitioner’s benefits ($26,268) exceeded the threshold, and the fact that the taxable amount ($22,328) was less than $25,000 did not change the statutory result. The court’s opinion closed with a blunt reminder: "We do not have authority to disregard the express provisions of a statute enacted by Congress even where the result in a particular case may seem harsh."

The court’s reasoning was not an exercise in judicial activism; it was a strict application of the tax code as written. The Tax Court’s power in this case was not expanded—it was affirmed. The IRS’s position was upheld because the statute left no room for alternative interpretations. The petitioner’s arguments, while emotionally resonant, were legally unsustainable under the clear text of Section 86 and the decades of precedent upholding its constitutionality.

Key Takeaways for Taxpayers

The Tax Court’s ruling in Charmaine A. Gray v. Commissioner (T.C. Memo. 2026-61) reaffirms that Social Security benefits are taxable income when modified adjusted gross income (MAGI) exceeds statutory thresholds under Section 86 of the Internal Revenue Code. Taxpayers who omit these benefits risk deficiencies, penalties, and interest.

Taxpayers must accurately calculate MAGI—including nontaxable interest and half of Social Security benefits—to determine the taxable portion of their benefits. The IRS’s authority to enforce these rules is firmly established, and challenges based on "double taxation" or constitutional arguments have consistently failed in courts. Proactive tax planning and meticulous recordkeeping are essential to avoid costly disputes.