Ness v. Commissioner: Proving an Assessment Without the Original Tax Return

Ness v. Commissioner, No. 25-9006 (10th Cir. Oct. 6, 2026), affirmed the Tax Court’s decision upholding approximately $655,000 in back-tax assessments for 2015–2018. The dispute narrowed after the IRS produced three of the returns: The original 2015 return remained missing. The taxpayers argued that the IRS had to produce that return or Form 4340 before the assessment could stand.

The Tenth Circuit rejected an exclusive-document rule on this record. It separately identified the absence of a demonstrated Form 4340 request, failure to show that the Form 4340 issue had been raised below, and the information actually contained in the account transcript. The result was not a finding that every IRS transcript is accurate or that missing records can never matter.

Status, Source, and Scope

This is a nonprecedential order and judgment. The opinion permits citation for persuasive value under Federal Rule of Appellate Procedure 32.1 and Tenth Circuit Rule 32.1, while preserving its specified law-of-the-case and preclusion exceptions. It is not binding Ninth Circuit authority. The analysis below concerns the official nine-page opinion, not independently verified later docket treatment. Ness, slip op. at 1.

The appeal was from Tax Court No. 7945-23L. The appellate court exercised jurisdiction under 26 U.S.C. § 7482(a)(1), reviewed legal conclusions de novo and factual findings for clear error, and applied abuse-of-discretion review to the briefing decision. Those standards address different questions; an appellate disagreement with a legal premise is not the same as reweighing a trial record. Ness, slip op. at 1, 4, 8.

How the Return Dispute Narrowed

In 2021, the IRS notified Steven and Tobie Ness of taxes attributed to returns for 2015–2018. They said they had filed none of those returns and speculated that identity theft explained them. In the initial Tax Court proceeding, they relied on a March 16, 2023 letter requesting copies and additional time. The court could not find the letter in the administrative record and identified uncertainty about whether and when the settlement officer received it. Ness, slip op. at 2–3.

The IRS sought an unopposed remand to clarify the record and the returns. On remand, it added the 2016, 2017, and 2018 returns, which the taxpayers then ceased disputing as inauthentic. The settlement officer could not locate the 2015 return and again assessed taxes for all four years. The later dispute therefore did not retain the same factual scope as the initial allegation that none of the four returns belonged to the taxpayers. Ness, slip op. at 3.

At trial, Mr. Ness asked for a decision solely on the administrative record. The Tax Court denied that request because the challenge to underlying liability called for de novo review after trial. The parties stipulated to their proposed exhibits and administrative record, then declined opening statements, additional evidence, and closing arguments. The Tax Court found no evidence tending to show that the returns were unauthorized or incorrect and upheld the assessment. Ness, slip op. at 3–4.

That procedural opportunity is central to the result. The opinion describes a taxpayer who had a trial at which to offer contrary proof, rather than someone whose evidentiary objection was resolved after the court refused all relevant evidence.

The Original Return Was Not an Exclusive Evidentiary Requirement

The taxpayers asserted that the IRS could establish 2015 liability only by producing the return or Form 4340. The court found no cited authority supporting the proposition that the return itself was indispensable and rejected that argument. Ness, slip op. at 5.

This is a narrower conclusion than saying the contents or authenticity of a return never matter. A challenge supported by specific contrary evidence, a preserved procedural irregularity, or a different statutory requirement would present questions the opinion did not resolve. Here, the missing original was treated as a reason the IRS’s proof could not legally suffice, without authority establishing that exclusive-document requirement.

Why Form 4340 Was Not the Minimum Required Proof

The court explained that Form 4340 is used to satisfy the obligation under 26 U.S.C. § 6203 to furnish an assessment record upon request. The regulation, 26 C.F.R. § 301.6203-1, identifies the pertinent information: The taxpayer’s name, assessment date, character of liability, taxable period when applicable, and assessed amounts. Ness, slip op. at 5–6 & n.3.

1. Presumptive proof is not exclusive proof. Earlier authority describing Form 4340 as presumptive proof of an assessment did not establish that it was the only adequate evidence or minimum possible evidence.
2. The request was not demonstrated. The taxpayers pointed to nothing in the record showing that they had requested Form 4340. A statutory right to an assessment record upon request does not establish that a particular request was made in this case.
3. The objection was not shown to be preserved. They also pointed to nothing showing that they raised the Form 4340 issue before the Tax Court. The appellate court treated that omission as a separate reason to reject the claim.

Ness, slip op. at 6. In footnote 3, the court compared the regulatory information with the 2015 account transcript and observed that the transcript contained the same data called for in Form 4340. The analysis concerned the contents of the produced record; it was not merely an assumption that any document labeled an account transcript must suffice.

For a records dispute, those points call for separate questions: What assessment information is present? What particular information or document was requested? What objection was raised, where, and when? Treating those as one generic complaint about missing paperwork can obscure both the evidentiary issue and the preservation issue.

Why the Notice-of-Deficiency Authority Did Not Control

The taxpayers relied on Hoyle v. Commissioner, 131 T.C. 197 (2008), which addressed whether a required notice of deficiency had been properly sent before collection proceedings. As the Tenth Circuit explained it, that record did not establish proper mailing, so the Tax Court remanded to clarify the underlying documentation. Ness, slip op. at 6–7.

A specific alleged irregularity in a required notice is different from an unsupported claim that every disputed return must be physically produced. The court concluded that Hoyle established no such return-production rule. It did not hold that the IRS could ignore an independently supported notice defect in another case. Ness, slip op. at 7.

The Briefing Request and the IRS Reply Letter

The proposed schedule called for simultaneous briefs, but when the Tax Court asked what issues Mr. Ness intended to brief, he could not articulate any. He suggested he might offer something after seeing an IRS brief. Reviewing the denial as a litigation-supervision decision, the appellate court found no abuse of discretion in refusing briefing without identified issues. Ness, slip op. at 8.

The court treated a separate appellate exchange differently. The IRS said it would waive a response brief but sent a letter explaining why the taxpayers’ arguments failed. Because that was effectively a response brief, the court granted leave for the taxpayers’ reply letter and considered it. This limited procedural ruling did not change the merits disposition. Ness, slip op. at 1–2 n.1.

Disposition and Practical Limits

The Tax Court’s judgment was affirmed. Ness, slip op. at 9. The opinion rejects the return-or-Form-4340 argument on its specific record and affirms the briefing decision. It does not determine the validity of a future identity-theft claim, make all computer transcripts conclusive, or remove statutory notice requirements.

Someone reviewing an assessment should distinguish a demonstrable discrepancy from a demand for a single exclusive document. Preserve the actual request, the agency’s response, the transcript contents, any contrary proof, and the objections made in the proper proceeding. The availability of a specific procedural remedy depends on the account and forum. Visit our tax legal services page for assistance evaluating the records and legal questions in a tax controversy.