The New Opportunity Zone Reporting Requirements: Section 6039K Returns and a $500-a-Day Penalty

If you sign a return for a qualified opportunity fund, the opportunity zone reporting requirements you learned in 2019 are no longer the whole job. Section 70421(d) of the One Big Beautiful Bill Act, Public Law 119-21, enacted July 4, 2025, added two new Code sections and one new penalty section. Every QOF now owes the IRS a standalone annual information return under new IRC 6039K. Every operating business the fund invested in owes the fund a written statement under new IRC 6039L. And new IRC 6726 prices a late or incomplete 6039K return at $500 for each day the failure continues.

The effective date in section 70421(d)(5) reads: "The amendments made by this subsection shall apply to taxable years beginning after the date of the enactment of this Act." Enactment was July 4, 2025. So a calendar-year fund's first year in scope is the tax year beginning January 1, 2026, because the year beginning January 1, 2025 began before enactment. Any fund whose tax year began between July 5 and December 31, 2025 began that year after enactment, which puts it in scope already. A QOF on an August 1 through July 31 year closed its first 6039K year on July 31, 2026. That one is a current-season problem, not a planning item. With no form number and no filing date yet, that season's work is data gathering, not filing.

What Changed in the Opportunity Zone Reporting Requirements?

Before OBBBA, a QOF's reporting obligation ran through Form 8996, which the IRS describes as used "to certify that the corporation or partnership is a qualified opportunity fund (QOF)" and "to annually report whether the QOF met the investment standard during its tax year." It attaches to the fund's income tax return. Parts II and III run the 90 percent asset test in IRC 1400Z-2(d)(1), measured "on the last day of the first 6-month period of the taxable year of the fund" and "on the last day of the taxable year of the fund," then averaged. Parts V and VI already collect owned and leased property values at both testing dates, the 11-digit census tract number of each QOZ involved, and the EIN of each QOZ business the fund holds an interest in; Part I, line 5 already requires a statement of each disposing investor's name, TIN, disposal date, and interest transferred. So the genuinely new 6039K items are NAICS codes, residential unit counts, full-time-equivalent headcounts, the portfolio company's name and address, and each disposing investor's address and acquisition dates.

Section 6039K creates a separate return. Section 70421(d)(1) amended "Subpart A of part III of subchapter A of chapter 61," the information-returns subpart, by inserting new sections 6039K and 6039L after section 6039J. IRC 6039K(a) states: "Every qualified opportunity fund shall file an annual return (at such time and in such manner as the Secretary may prescribe) containing the information described in subsection (b)."

I have seen firm alerts calling 6039K a replacement for Form 8996. The statute does not say that, and section 70421(d) leaves the 90 percent test and its Form 8996 mechanics untouched. Plan for both obligations until the IRS says otherwise.

How Fast Does a $500-a-Day Penalty Reach the Cap?

IRC 6726(a): "If any person required to file a return under section 6039K fails to file a complete and correct return under such section in the time and in the manner prescribed therefor, such person shall pay a penalty of $500 for each day during which such failure continues."

Under 6726(b)(1), "The maximum penalty under this section on failures with respect to any 1 return shall not exceed $10,000." Twenty days at $500 exhausts it. Under 6726(b)(2), a fund whose gross assets on the last day of the taxable year exceed $10,000,000 gets $50,000 substituted for $10,000, a cap that takes 100 days to reach. If the failure "is due to intentional disregard," 6726(c) substitutes $2,500 for $500, $50,000 for $10,000, and $250,000 for $50,000: the same 20 and 100 days, at five times the price.

Now the detail that makes quoting "$500 a day" wrong. IRC 6726(d)(1) indexes the whole schedule: "In the case of any failure relating to a return required to be filed in a calendar year beginning after 2025, each of the dollar amounts in subsections (a), (b), and (c) shall be increased by" a cost-of-living adjustment determined under section 1(f)(3), computed by substituting "calendar year 2024" for "calendar year 2016" in section 1(f)(3)(A)(ii). Rounding under 6726(d)(2) runs down: next lowest $10 for the daily figures, $10,000 for the asset threshold, $1,000 for the rest.

Nothing has yet been prescribed under 6039K(a), and later guidance cannot retroactively have required a 2025 filing, so no 6039K return can be required to be filed before calendar year 2026. Every dollar amount in section 6726 is therefore indexed from the first return forward. Confirm the year's adjusted figures before quoting one to a fund manager, and note that 20 and 100 days shift with them, because the daily amount and the caps round to different multiples.

What Section 6039K Actually Asks For

The 6039K(b) list runs to nine paragraphs, grouped by where the data lives:

Fund-level items. The fund's name, address, and TIN; whether it is a corporation or a partnership; and total asset value and total qualified opportunity zone property value, each measured "as of each date described in section 1400Z-2(d)(1)."

Per-investment items, under 6039K(b)(5). For every holding of QOZ stock or a QOZ partnership interest: the portfolio company's name, address, and TIN; "each North American Industry Classification System (NAICS) code that applies to the trades or businesses conducted by such corporation or partnership"; "the population census tract or population census tracts in which the qualified opportunity zone business property [...] is located"; investment amount and owned and leased tangible property values at each testing date; residential unit counts for real property; and "the approximate average monthly number of full-time equivalent employees of such corporation or partnership for the year (within numerical ranges identified by the Secretary) or such other indication of the employment impact of such corporation or partnership as determined appropriate by the Secretary."

Directly held property, under 6039K(b)(6) and (b)(7). The same NAICS, census tract, owned-or-leased, value, and residential unit detail for property the fund holds directly, plus an employment measure for the fund's own trades or businesses.

Investor dispositions, under 6039K(b)(8). For each person who disposed of an investment during the year: name, address, TIN, acquisition dates, disposition dates, and the amount disposed.

Section 6039K(d)(2) defines "full-time equivalent employees" as full-time employees "(as defined in section 4980H(c)(4))" plus a part-time conversion made "under rules similar to the rules of section 4980H(c)(2)(E)," dividing non-full-time monthly hours of service by 120. Half cross-reference, half analogy, so do not assume 4980H's measurement periods and aggregation rules travel with it.

Why Section 6039L Is the Provision That Changes Your Operating Agreements

NAICS codes, residential unit counts, and monthly headcounts sit in the portfolio company's books, not the fund's. Congress saw the same gap. IRC 6039L(a): "Every applicable qualified opportunity zone business shall furnish to the qualified opportunity fund described in subsection (b) a written statement at such time, in such manner, and setting forth such information as the Secretary may by regulations prescribe for purposes of enabling such qualified opportunity fund to meet the requirements of section 6039K(b)(5)."

An "applicable qualified opportunity zone business" under 6039L(b) is any QOZ business that is a trade or business of the fund, or in which the fund holds QOZ stock or a QOZ partnership interest. Parallel rules in 6039K(e) and 6039L(d) extend the regime to qualified rural opportunity funds and rural QOZ businesses.

The fund is the party 6726 penalizes, at $500 a day, for an incomplete return, but the portfolio company holds the data, and section 6726 itself offers the fund no excuse when an investee will not produce its NAICS codes and headcounts. A waiver sits in the same part: 6726 went into "Part II of subchapter B of chapter 68," and IRC 6724(a) bars any penalty "under this part" for a failure "due to reasonable cause and not to willful neglect." That is a showing on the facts, not an entitlement, and untested against a penalty this new, which argues for a covenant rather than against one: a documented request and a documented refusal is a reasonable cause record. Get a reporting covenant into the operating agreement or subscription documents now, with a delivery deadline that leaves time to compile. On a January 2026 calendar year, that window is open; on a 2025 fiscal year already closed, it is not, and the work is a call to each portfolio company this week.

Electronic Filing and the Payee Statement Consequence

Section 70421(d)(3) added IRC 6011(e)(8): "Notwithstanding paragraphs (1) and (2), any return filed by a qualified opportunity fund or qualified rural opportunity fund under section 6039K shall be filed on magnetic media or other machine-readable form." Paragraph (1) holds the paper-forms limit and (2) the return-count threshold, so overriding both leaves neither.

Section 70421(d)(2)(B) then added "section 6039K(c) (relating to disposition of qualified opportunity fund investments)" and "section 6039L [...]" to the payee statement list in IRC 6724(d)(2). Section 6039K(c) is the statement the fund must furnish to each investor named in its return by reason of 6039K(b)(8), showing the fund's information contact and that investor's disposition detail.

Section 6726 by its terms penalizes only a failure to file "a return under section 6039K," so it does not reach a portfolio company that never sends its 6039L statement. Placement in 6724(d)(2) instead makes those statements payee statements for purposes of IRC 6722, which penalizes a failure "for each statement with respect to which such a failure occurs," subject to its own annual maximum and its own inflation adjustment. Per statement, not per day.

What Is Still Unsettled

Both new sections delegate heavily. Section 6039K(a) leaves timing and manner to "such time and in such manner as the Secretary may prescribe," and 6039K(b)(5)(H) leaves the employee ranges to be "identified by the Secretary." Widest of all, 6039K(b)(9) asks for "such other information as the Secretary may require." Section 6039L(a) goes further: the QOZ business statement is due at such time, in such manner, and with such content "as the Secretary may by regulations prescribe." Until that guidance lands, a QOZ business has no operative deadline, even though its parent fund's year end is fixed.

So do not tell a client which form number to expect. The statute creates the obligation and the penalty; the form and the filing date come from Treasury. While you wait, the hierarchy of Treasury and IRS guidance covers what weight each pronouncement carries, and the OBBBA bonus depreciation changes are a companion read for this law's other provisions.

This post quotes section numbers because on a provision this new the statute is the only authority there is, and finding subsection (d)(5) of section 70421 inside a reconciliation bill is tedious. I built Tax Orator to run that search against primary sources and hand back the operative sentence, not a paraphrase.