Investing partnership and K-1 gains in an Opportunity Zone fund

Yes. The regulations let a partnership, S corporation, estate or non-grantor trust defer its own eligible gain by investing in a Qualified Opportunity Fund (QOF), and if the entity does not, each owner can defer its share of that gain.^1,2

A QOF is a corporation or partnership that self-certifies on Form 8996 and holds at least 90% of its assets in Opportunity Zone property.³ Eligible gain is gain treated as capital gain, including gross §1231 gain, from a sale to an unrelated person.^4,5 For amounts invested after December 31, 2026, the deferred gain is taxed on the earlier of a disposition or the fifth anniversary of the investment, with a 10% basis step-up (30% in a Qualified Rural Opportunity Fund).^6,7

The partnership itself invests an amount up to its eligible gain in a QOF within 180 days of its sale and makes the election on its return, so the gain is not passed through to partners in that year.¹

This works when all partners want the same result, as in a family partnership or a single-strategy real estate fund, and when the partnership will stay in existence long enough to hold the QOF interest for 10 years. The deferred gain is later included at the partnership level and allocated to partners. It is a poor fit when partners have different goals, because the decision binds everyone. Many partnerships therefore leave the choice to partners and tell them promptly about the gain.

By default on the last day of the partnership's tax year, but a partner may elect to start it on the partnership's sale date or on the due date of the partnership's return without extensions.^2,8,9

The same options apply to S corporation shareholders and to beneficiaries of estates and non-grantor trusts; for an estate or trust, the unextended return due date is typically April 15.⁹ The due-date option exists because partnership returns are often extended to September 15, so many partners would otherwise receive their K-1 after the default window had mostly run. See the 180-day rule.

A partner can invest up to its distributive share of the partnership's eligible gain, using cash from any source.¹

• Capital gains on the K-1, short-term or long-term, qualify.
• Section 1231 gains qualify on a gross basis, unreduced by §1231 losses; the portion that is §1245 or §1250 ordinary recapture does not. See Section 1231 gains and Opportunity Zones.⁵
• Ordinary income items, such as interest, rents and operating income, do not qualify.
• The partner does not need the partnership to distribute the sale proceeds. Deferral depends on investing an amount equal to the gain within the window, not on tracing the cash.
• The partner can invest part of its share, split it among several QOFs, or skip deferral entirely.

Partnerships help their partners by reporting, as early as possible, the date of each sale and the amount and character of each eligible gain. A partner that hears about a sale only from its K-1 in September has already lost the sale-date window.

Yes, if the partner's investment is made on or after January 1, 2027 within a valid 180-day window, because the effective date turns on when the amount is invested in the QOF.^11,6

For a calendar-year partnership's 2026 gain, the default year-end window opens December 31, 2026 and closes June 28, 2027, and the due-date window runs from March 15, 2027 to September 10, 2027. Either way, a partner can invest in 2027 and receive the five-year deferral and the 10% or 30% step-up. An amount invested on or before December 31, 2026 does not get these rules, and gain deferred by such an investment is included in income on December 31, 2026.¹² This is a time-sensitive opportunity for partners in funds that sold assets in 2026.

The partner makes the election on its own Form 8949 for the tax year in which it would otherwise report its share of the gain, then files Form 8997 every year it holds the QOF investment.^10,13

A partner using the due-date window for a 2027 gain may invest in mid-2028, after its own 2027 return is due. The election belongs on the 2027 return, so the partner should file on extension or plan to amend once invested. The Form 8949 entry shows the QOF's EIN, the investment date and the deferred amount as a negative adjustment.¹⁰ See Form 8996 and Form 8997.

Most QOFs are partnerships, so investors receive K-1s from the fund, and gains the fund recognizes before the investor's 10-year mark are generally taxable to the investors.¹⁴

If a QOF sells property and reinvests the proceeds within 12 months, the proceeds count toward the fund's 90% asset test during that period, but that rule protects the fund's status, not the tax on the gain. Treasury's Notice 2026-55 requests comments on such interim gains, so this may change.¹⁵ After 10 years, investors in a QOF partnership can elect to exclude gains from the fund's asset sales reported on their K-1, other than gains from inventory sold in the ordinary course.¹⁶ See the 10-year hold and what to expect in fund reporting.

Land partnerships, development joint ventures and real estate funds that sell sites or stabilized facilities to data center buyers generate K-1 gains, and their partners can defer them in a data center QOF.¹⁷

A family land partnership selling acreage for a campus can invest at the entity level if the family agrees, or let each partner decide. A developer partnership that sells a stabilized facility can do the same. Watch the related-party limits if partners will invest in the same project that bought the asset, since eligible gain must come from a sale to an unrelated person at a 20% threshold.⁴ OZ Data Centers sponsors funds that accept K-1 gains within these windows. See Opportunity Zones for landowners and Opportunity Zones for CPAs and advisers.