What Is a Qualified Opportunity Fund and How Does It Work?

A Qualified Opportunity Fund is a corporation or partnership that invests in economically distressed census tracts called Opportunity Zones, and it lets you defer federal tax on capital gains you roll into it. Congress created the vehicle in the Tax Cuts and Jobs Act of 2017. Two benefits drive the program: a temporary deferral of the gain you contribute, and a permanent exclusion of any new appreciation the fund investment itself generates once you have held it for at least 10 years.¹ If you already hold a QOF investment, the date that matters most is December 31, 2026, when your remaining deferred gain becomes taxable whether you sell or not.

Which Gains You Can Put Into a QOF

Short-term capital gains, long-term capital gains, and qualified Section 1231 gains from the sale of business property all qualify. The gain has to be recognized for federal income tax purposes before January 1, 2027, and it cannot come from a transaction with a related person.² You invest only the gain, not the whole sale proceeds, and you can invest as much or as little of it as you want.

Your money has to reach the fund within 180 days, and it has to buy equity in the fund. A loan to the fund does not count.² For most sales the 180 days start on the date you realized the gain, but the starting date shifts in a few common situations:¹

If a partnership or S corporation generated the gain, you can start on the last day of the entity’s tax year or on the same date the entity’s own 180-day period began.
For a capital gain dividend from a REIT or regulated investment company, you can start on the last day of the tax year in which you would normally recognize the gain, or on the date the dividend was paid.
For an installment sale, you can use one 180-day window starting at the end of the tax year of the sale, or a separate 180-day window for each installment beginning on the day you receive it.

Miss the 180 days and the deferral for that gain is gone.

How the Deferral Works

When you make the election, you exclude the invested gain from your gross income for that year. Your basis in the QOF investment starts at zero, so the full deferred gain sits inside the investment from day one.³ The deferral lasts until whichever comes first: an inclusion event or December 31, 2026.¹

An inclusion event is anything that reduces or terminates your qualifying investment. Selling your QOF interest is the obvious one. Gifting it triggers recognition too, and so does a liquidation of the fund. Some transfers that are not technically sales still count.² Investors often assume they can move a QOF interest around without tax; usually they cannot.

The statute also included interim basis step-ups tied to five- and seven-year holding periods, but those windows have closed. To reach the 15% reduction you would have had to invest by December 31, 2019; for the 10% reduction, by December 31, 2021.³ Anyone investing now cannot hit those holding periods before the 2026 deadline.

The December 31, 2026 Recognition Date

This is the deadline that surprises investors. Whether or not you sell, your remaining deferred capital gain is included in your gross income on December 31, 2026, and you pay the tax with your 2026 return.¹ The amount you include is the lesser of the original deferred gain or the fair market value of your QOF investment on that date, minus your adjusted basis.³

The fair market value cap protects you if the investment lost value. Say you deferred $200,000 and the QOF interest is worth $150,000 at the end of 2026; you recognize $150,000 rather than the full $200,000. If the investment held or grew, you owe tax on the full deferred gain.

You do not have to sell the investment to pay the tax. You can keep holding it, which preserves the more valuable benefit that comes next.

The 10-Year Exclusion on New Appreciation

The long-term payoff is this: after you have held a QOF investment for at least 10 years, you can elect to have its basis adjusted to fair market value at the time of sale. Any appreciation the QOF investment generates after your contribution is never taxed.¹ An investor who put $500,000 into a QOF in 2019 and sells for $2 million in 2029 owes nothing on the $1.5 million of appreciation, even after paying tax on the original deferred gain in 2026.

This benefit does not depend on when you invested. It depends on the 10-year hold and on the fund remaining a qualifying QOF that whole time.

What a QOF Actually Is

A QOF has to be a corporation or a partnership organized under the laws of a U.S. state, the District of Columbia, or a U.S. territory. An individual cannot be the fund.³ Most funds are LLCs taxed as partnerships, because that structure passes the tax benefits directly through to investors. The entity’s organizing documents must state that it was formed to invest in Qualified Opportunity Zone property. There is no IRS pre-approval; the fund certifies itself by filing Form 8996 with its federal tax return.⁴

At least 90% of the fund’s assets must be Qualified Opportunity Zone property, measured as the average of two testing dates each year.⁴ Qualifying property is stock in a domestic corporation that runs a Qualified Opportunity Zone Business, a partnership interest in a domestic partnership that does the same, or tangible business property located in the zone. Tangible property has to have been purchased after December 31, 2017, and either put to its first use in the zone by the fund or substantially improved within 30 months. Substantial improvement means capital spending greater than the property’s adjusted basis at acquisition, applied to the building only, not the land.¹

Some businesses are categorically off the table for QOF investment: golf courses, country clubs, massage parlors, hot tub facilities, suntan facilities, racetracks, gambling operations, and liquor stores whose primary business is off-premises alcohol sales. Location inside a zone does not save them.

What You File

You report the initial deferral election on Form 8949 in the year of the gain. For every year you hold the QOF investment, you also file Form 8997 with your return. Form 8997 tracks your QOF investments and deferred gains at the beginning and end of the year and reports any dispositions or inclusion events.⁵ Any investor holding a QOF interest at any point during the tax year must file it with a timely return.⁶ When deferral ends on December 31, 2026, you report the recognized gain on Form 8949 and reflect the basis change on Form 8997.¹

State Taxes Are a Separate Question

Federal Opportunity Zone treatment does not automatically flow through to your state return. A number of states, including California and New York, have decoupled from the federal deferral, which means you may owe state tax on the capital gain in the year you earned it even though you deferred it federally. Check how your state handles the program before you invest, because state tax can meaningfully change what the investment looks like on an after-tax basis.

What the 2025 Law Changed

The One Big Beautiful Bill Act, enacted in 2025, made the Opportunity Zone program a permanent part of the tax code instead of letting it expire. The legislation adds new designation rounds and updated rules for investments made after December 31, 2026. For investments held longer than 30 years, the stepped-up basis used for the 10-year exclusion is frozen at fair market value on the 30th anniversary. The original designation map sunsets, with new zones to follow. For current holdings, though, the rules described above still control: the December 31, 2026 recognition event and the 10-year exclusion continue to operate under the original statute.

1
Internal Revenue Service. Opportunity Zones Frequently Asked Questions
2
Internal Revenue Service. Invest in a Qualified Opportunity Fund
3
Office of the Law Revision Counsel. 26 U.S. Code 1400Z-2 – Special Rules for Capital Gains Invested in Opportunity Zones
4
Internal Revenue Service. Certify and Maintain a Qualified Opportunity Fund
5
Internal Revenue Service. About Form 8997, Initial and Annual Statement of Qualified Opportunity Fund (QOF) Investments
6
Internal Revenue Service. Form 8997 – Initial and Annual Statement of Qualified Opportunity Fund Investments