ASU 2024-03 Non-GAAP Disclosure Overlap: What Changes and What to Do

ASU 2024-03 is not just a new footnote requirement. For any public company that reports adjusted EBITDA, adjusted operating income, or any non-GAAP measure that strips out depreciation, amortization, or stock-based compensation, it is a transparency collision waiting to happen.

The standard requires granular, audited, note-level disclosure of the exact expense categories that most companies quietly exclude from their non-GAAP metrics. Once those numbers are in the GAAP notes, the SEC can cross-reference them against every earnings release and MD&A reconciliation the company has ever filed. That is the overlap finance teams need to understand before fiscal year 2027 arrives.

Key takeaway: ASU 2024-03's five mandatory natural expense categories overlap almost perfectly with the most common non-GAAP add-backs. The new GAAP disclosures will give the SEC an audited baseline to scrutinize non-GAAP reconciliations more aggressively than ever before.

What ASU 2024-03 Actually Requires

ASU 2024-03 (Subtopic 220-40), issued by FASB in November 2024, requires public business entities to disclose, in tabular format in the notes to financial statements, the amounts of five natural expense categories included within each "relevant expense caption" on the income statement. The five categories are:

1. Purchases of inventory
2. Employee compensation (including stock-based compensation)
3. Depreciation
4. Intangible asset amortization
5. Depletion and DD&A (for oil and gas or other depletion)

A "relevant expense caption" is any income statement line item within continuing operations that contains one or more of these categories. In practice, that means cost of goods sold (COGS), selling, general and administrative expenses (SG&A), and research and development (R&D) will almost always qualify. Revenue lines and income tax lines will not.

Critically, ASU 2024-03 does not change the face of the income statement. Expense captions stay exactly where they are. The disaggregation lives entirely in the notes. But that is precisely what makes the non-GAAP overlap so consequential: the face stays the same, while the notes become a detailed map of what is inside each caption.

For a full step-by-step implementation guide, see ASU 2024-03 Expense Disaggregation: A Practitioner's How-To Guide. For effective dates and the compliance calendar, see the ASU 2024-03 effective date guide.

The Non-GAAP Overlap: Why This Is Different

Every major non-GAAP measure that public companies report has a short list of standard add-backs. Compare those add-backs to ASU 2024-03's five required categories:

The overlap is not incidental. FASB explicitly designed ASU 2024-03 in response to investor demand for visibility into the same natural expense categories that companies routinely exclude from non-GAAP metrics, as stated in the standard's Basis for Conclusions. Investors wanted to see depreciation and employee costs broken out by caption. Those are also the items most commonly excluded from non-GAAP measures. That is not a coincidence.

The Stock-Based Compensation Problem

The employee compensation category deserves special attention. Under ASU 2024-03, "employee compensation" includes stock-based compensation. Once the GAAP note discloses total employee comp (including SBC) by income statement caption, investors and the SEC can see exactly how much SBC sits in COGS versus SG&A versus R&D.

This directly challenges the standard non-GAAP narrative that SBC is a "non-cash" item that should be excluded wholesale. If a company's GAAP note shows that a material portion of SBC is in COGS (where it funds the people who build the product), the SEC may question whether excluding it produces a measure that fairly represents operational performance. The SEC's non-GAAP CDIs already flag individually tailored accounting principles and recurring exclusions as comment letter triggers. ASU 2024-03 will give staff the data to act on those flags.

The D&A Caption Problem

For adjusted EBITDA reporters, the issue is similar but more structural. Today, a company can disclose total D&A in a single footnote and reconcile it out of EBITDA without revealing how much sits in COGS versus SG&A. After ASU 2024-03, the GAAP note will show the caption-level split.

If D&A is concentrated in COGS (manufacturing equipment, production facilities), excluding it from adjusted EBITDA means excluding a core operational cost. The SEC has historically challenged non-GAAP measures that exclude recurring operational items without adequate justification, per Regulation G and Item 10(e) of Regulation S-K. The new GAAP note will make that challenge far easier to mount.

ASU 2024-03 vs. Existing Non-GAAP Rules: What Changes and What Does Not

ASU 2024-03 does not amend Regulation G or Item 10(e). The existing non-GAAP reconciliation rules stay exactly as they are. What changes is the evidentiary environment in which those rules are enforced.

The practical effect: non-GAAP reconciliations that have been defensible under aggregated GAAP data may become harder to defend once the caption-level detail is public and audited. Finance teams that have defined "adjusted EBITDA" loosely, or that have excluded items without rigorous consistency, face real comment letter risk. For a current read on what the SEC is already flagging on non-GAAP measures, see SEC Comment Letter Trends: Non-GAAP Measures in 2026.

The "Other Items" Catch-All: A Hidden Scrutiny Risk

Beyond the five mandatory categories, ASU 2024-03 requires that the residual amount remaining in each relevant expense caption (the items not separately disaggregated) be presented in the table with a qualitative description of its composition, per ASC 220-40-50-30.

This matters for non-GAAP purposes because restructuring charges, litigation settlements, and other items commonly excluded from non-GAAP measures will likely land in this "other items" bucket. Companies cannot simply aggregate them without explanation. The qualitative description requirement means every material item in the catch-all will attract investor and SEC attention, even if it is not separately quantified. If a company excludes an item from non-GAAP but buries it in "other items" without description, that inconsistency will be visible.

Interaction with ASU 2023-07: Two Disaggregation Regimes at Once

Public companies have already adopted ASU 2023-07 (Segment Reporting), which was effective for fiscal years beginning after December 15, 2023. That standard requires disclosure of significant segment expenses regularly provided to the chief operating decision maker (CODM).

When ASU 2024-03 becomes effective in fiscal 2027, companies will operate under two parallel disaggregation regimes simultaneously:

• ASU 2023-07: Significant expenses by reportable segment, driven by what the CODM reviews.
• ASU 2024-03: Five natural expense categories by income statement caption, at the consolidated level.

The risk is conflict or inconsistency. A segment expense disclosed under ASU 2023-07 may not map cleanly to the consolidated caption-level categories under ASU 2024-03. If the segment disclosure and the consolidated note tell different stories about, say, employee compensation or depreciation, the SEC will notice. Finance teams need to map both requirements against the same underlying data before either disclosure goes out.

ESG and Sustainability Costs: An Underappreciated Exposure

Sustainability-related costs embedded in operating expense captions will become more visible under ASU 2024-03. Carbon credit purchases, environmental remediation costs, and sustainability-related capital expenditure depreciation all flow through COGS or SG&A. Once those captions are disaggregated in the GAAP notes, investors can compare the GAAP expense data against separately published sustainability reports and ISSB or CSRD disclosures.

If a company's CSRD or ISSB disclosure reports environmental compliance costs at one figure, but the ASU 2024-03 note implies a different amount embedded in operating expenses, that misalignment will be a question in the next earnings call or a comment in the next SEC review. ESG teams and finance teams need to reconcile their cost figures before the standard is effective.

For ISSB disclosure requirements, see the IFRS S2 Disclosure Requirements Checklist.

Early Adoption vs. Waiting: The Strategic Calculus

ASU 2024-03 is effective for annual periods beginning after December 15, 2026, meaning fiscal year 2027 is the first mandatory year for calendar-year-end public companies. Interim disclosures are not required until fiscal years beginning after December 15, 2027, so Q1 2028 is the first mandatory quarterly disclosure for calendar-year companies. Early adoption is permitted for any annual or interim period for which financial statements have not yet been issued.

The right answer depends on how well-defined and defensible a company's existing non-GAAP measures are. A company with tightly defined, consistently applied non-GAAP metrics and clean ERP data may benefit from early adoption. A company with loosely defined add-backs or data infrastructure gaps should use the remaining time to fix those problems first.

Note the timing asymmetry: annual GAAP notes will carry the new disclosures starting in fiscal 2027, but quarterly earnings releases and non-GAAP reconciliations will not face the same interim disclosure requirement until Q1 2028. That gap is a potential source of investor confusion if the annual note and the quarterly non-GAAP presentation tell visibly different stories.

Transition: Prospective or Retrospective?

ASU 2024-03 requires comparative disclosures for all periods presented. However, as PwC notes, entities may apply the guidance prospectively for the period of adoption if recasting prior periods is impracticable. If a company takes the impracticability exception, it must disclose that fact and explain why recast is not feasible.

In practice, the impracticability exception will be hard to sustain for companies with modern ERP systems. The SEC will expect a clear explanation, not a boilerplate assertion. Companies that cannot recast prior periods should document the specific data limitation now, before auditors and SEC staff ask.

What Finance Teams Must Do Before Fiscal 2027

The preparation work is substantial and the 2027 effective date is closer than it looks. Here is the sequence that matters:

1. Audit your non-GAAP definitions against the five ASU 2024-03 categories. Map every add-back in your adjusted EBITDA or adjusted operating income reconciliation to the five natural expense categories. Identify where the GAAP note will show data that contradicts or complicates your current non-GAAP narrative.

2. Assess the D&A and SBC caption split. Run the analysis now: how much of your total D&A sits in COGS versus SG&A versus R&D? How much SBC is in each caption? If the answer makes your non-GAAP exclusions look like they strip out operational costs, revise your non-GAAP definitions before the GAAP note makes the issue public.

3. Map your ERP and chart of accounts to the five required categories. The standard explicitly allows estimates where exact tracking is not feasible, but the FASB acknowledged that data aggregation is a real challenge. Start the systems work now. See ASU 2024-03 Chart of Accounts Mapping: Tools and Systems Guide for a detailed breakdown.

4. Assess comparative period data availability. Determine whether you can recast prior periods or whether you will need the impracticability exception. Document the basis for that determination now.

5. Update your "recently issued accounting standards" disclosure. SEC staff expects current filings to include: a description of ASU 2024-03, the required adoption date, the planned adoption date if earlier, the transition method expected, and the anticipated impact on financial statements (or a statement that the impact is not yet estimable). A generic "we are evaluating" disclosure will draw comment.

6. Coordinate with external auditors on scope. The new note disclosures are part of the audited financial statements. Auditors will apply procedures to the disaggregated amounts. Align on the methodology for estimates and the definition of "relevant expense caption" before the audit begins.

7. Align with your ESG and IR teams. Cross-check the expense data that will appear in the GAAP note against sustainability reports and investor presentations. Surface misalignments before they become questions.

FAQ

Which companies are exempt from ASU 2024-03? At least nine categories of entities are exempt, including private companies, not-for-profit entities, investment companies under ASC 946, broker-dealers under ASC 940, registered insurance separate accounts under ASC 944, employee benefit plans, IPO-stage companies, companies whose financials appear in another entity's SEC filing under Regulation S-X Rules 3-05, 3-09, or 3-14, and SPAC or Form S-4 target companies. See the full list in Deloitte's FAQ.

Does ASU 2024-03 change how expenses are presented on the face of the income statement? No. The income statement face presentation is unchanged. The disaggregation is a note disclosure only.

Will the SEC use ASU 2024-03 disclosures to challenge non-GAAP measures? Almost certainly, yes. The SEC's non-GAAP CDIs already target recurring exclusions and individually tailored accounting. Once ASU 2024-03 provides an audited, caption-level GAAP baseline, SEC staff will have the data infrastructure to cross-reference non-GAAP reconciliations directly. Companies with inconsistent or loosely defined add-backs face elevated comment letter risk.

How does ASU 2024-03 treat stock-based compensation? SBC is included within the "employee compensation" natural expense category. The GAAP note will disclose total employee compensation (including SBC) by income statement caption. This directly exposes the common practice of excluding SBC wholesale from non-GAAP measures.

What is a "relevant expense caption" and does every income statement line qualify? A relevant expense caption is any income statement line item within continuing operations that contains one or more of the five natural expense categories. COGS, SG&A, and R&D almost always qualify. Revenue and tax lines do not. The determination requires judgment and should be documented, as auditors and the SEC may challenge it.

How do leased employees and staffing arrangements affect the employee compensation disclosure? Leased employees are included in the employee compensation category only if five specific conditions are met: the individual qualifies as a common law employee of the lessee, the lessor is contractually required to remit payroll taxes, and the lessee has exclusive rights over compensation, hiring, economic value, benefit plan participation, and full compensation remittance. Companies that rely heavily on contract workers or staffing agencies need to assess each arrangement against this test.

How does ASU 2024-03 interact with ASU 2023-07 on segment reporting? ASU 2023-07 (already effective for most public companies) requires disclosure of significant segment expenses provided to the CODM. ASU 2024-03 adds a parallel consolidated-level requirement. The two standards use different frameworks and different drivers, so the disclosures will not automatically align. Finance teams must manage both simultaneously and ensure the two sets of disclosures are consistent.

The companies that will navigate this transition most cleanly are the ones that treat 2026 as a preparation year, not a waiting year. The non-GAAP transparency collision is coming regardless. The only question is whether your reconciliations are ready for it.