Opportunity Zones (Qualified Opportunity Funds)

How it works

Section 1400Z-2 lets an investor who has just realized an eligible capital gain defer that gain, and eventually exclude a slice of it, by moving it into a Qualified Opportunity Fund. A QOF is a corporation or partnership that self-certifies on Form 8996 and holds at least 90% of its assets in property or businesses located inside a designated opportunity zone. The investor generally has 180 days from the sale or exchange that produced the gain to make the investment and elect deferral.

Three benefits stack on top of each other, and the third is the one that matters most.

• Deferral. The gain invested in the QOF is excluded from income for the year it was realized. It does not disappear. It comes back into income later, on a schedule that depends on when the investment was made.
• A basis step-up on the deferred gain. Holding the investment long enough adds basis to the deferred gain itself, so part of it is never taxed even after it is recognized.
• Tax-free appreciation on the fund interest. Hold the QOF interest at least 10 years and elect at disposition to set basis equal to fair market value, and every dollar the fund earned above what was invested comes out untaxed. This benefit survives the shift to the newer rules described below.

Only the gain has to move into the fund, not the full sale proceeds, which is the detail that separates this from a section 1031 exchange. A 1031 exchange requires reinvesting everything into like-kind real property, whether a direct purchase or a fractional interest such as a Delaware statutory trust interest. A Qualified Opportunity Fund can hold real estate or an operating business, and whatever is left over after the gain is reinvested is simply the investor's to keep.

Two regimes, and timing decides which one applies

The original program, created by the 2017 tax act, is winding down. A permanent successor, created by the One Big Beautiful Bill Act (OBBBA) and generally called OZ 2.0, takes its place for investments made in 2027 and after. The two run on different clocks, and confusing them is the single most consequential mistake available right now.

OZ 2.0 also redraws which tracts qualify at all: the income ceiling for a new zone drops from 80% to 70% of the area's median family income, and no more than 25% of the tracts clearing that bar in a state can be designated.

What this is worth in Florida

Purely federal, and worth saying plainly given how often the Florida angle gets sold as something extra. Florida has no individual income tax and does not tax pass-through income at the personal level, so a Florida resident's capital gain was never going to face a state tax bill whether or not it moves into a fund. Every dollar of deferral, step-up, and exclusion described here is a federal number only. Florida does have a large number of designated zones, and the fund entity itself registers with Sunbiz like any Florida LLC or corporation, though that registration has no bearing on whether the fund actually qualifies as a QOF under federal law.

Who this applies to

This is not a strategy someone plans years in advance. It answers a question that only exists once a gain has already happened: a business sale, a stock sale, a sale of real estate held for investment. Without that triggering event, there is nothing to defer.

• Who can invest. Any taxpayer that realizes an eligible gain: individuals, C corporations, partnerships, S corporations, trusts, and estates. A partnership or S corporation can defer at the entity level, or pass the gain through to its owners, each of whom then gets an independent 180-day clock of their own.
• What kind of gain qualifies. Gain that is treated as capital gain for federal tax purposes and does not arise from a sale to a related person. Section 1231 gain qualifies gain by gain, not netted against the year's section 1231 losses, and only to the extent it exceeds any amount recaptured as ordinary income under sections 1245 or 1250. The netting rule appeared in the proposed regulations and did not survive into the final ones. Ordinary income, including depreciation recapture taxed as ordinary income, does not qualify.
• The related-party bar runs on a 20% threshold. Gain from a sale to a related person does not qualify, and the test gets there by substituting 20% common ownership into the tax code's general related-person rules under sections 267(b) and 707(b).

On the fund side, an investor is choosing between forming a QOF or buying into one a sponsor already runs. Either way, the investor holds an interest in the fund entity, not a specific property or business, which is what makes this fundamentally different from buying real estate directly.

What it requires

Several conditions run at once, at the investor level and at the fund level, and all of them have to hold for the benefits described above to actually be available.

• The 180-day deadline, measured correctly. The clock generally starts on the date of the sale or exchange. Section 1231 gain runs on that same general rule under the final regulations, so there is no later start date for it; the year-end start that circulated earlier came from the proposed regulations and was removed. Certain gain passed through from a partnership is the case that genuinely can start on a different date. Confirming the actual start date matters more than the day count itself.
• The fund clears a 90% asset test. A QOF must hold at least 90% of its assets in qualified opportunity zone property, tested as the average of two measurement dates each year. Falling short triggers a monthly penalty at the federal underpayment rate against the shortfall, unless the fund shows reasonable cause.
• Used property has to be substantially improved; new property does not. Property that is original use in the zone, meaning its first use there begins with the fund, qualifies without more. Property the fund acquires already in use must be substantially improved: additions to basis within 30 months must exceed the property's own adjusted basis, more than doubling it. A qualified rural fund gets a lower 50% bar. Land itself generally is not held to this test.
• The underlying business has to actually operate in the zone. At least 70% of its tangible property must be used there, and at least half its gross income must come from active conduct of the business inside the zone, with a working-capital safe harbor for a business still ramping up.
• A qualified rural fund has its own eligibility line. It must hold at least 90% of its assets in qualifying property located entirely within a rural area to earn the enhanced step-up and relaxed improvement test above.

What you need to document

The paperwork here runs longer than most strategies, because the investment has to be proven at the start, tracked every year it is held, and proven again at the end.

The closing statement for the gain itself

Whatever established the amount of the gain and the date of the sale or exchange, since that date sets the 180-day clock the entire deferral depends on.

Proof the investment happened inside the window

Bank records or a subscription agreement showing the fund received the money before the deadline, and the deferral election filed with Form 8949 for the year of the gain, using code Z.

Form 8997, every single year the investment is held

The investor's initial and annual statement of QOF investments. Missing a year is not a clerical gap. The annual statement is what confirms the deferral is still in place, and going without one invites exactly the inclusion question the filing exists to settle.

Form 8996, if the client is the one forming the fund

Filed with the fund's own return annually to self-certify and to report the 90% asset test results for the year.

Rural substantiation, if claiming the enhanced step-up

Documentation that the fund's qualifying property sits entirely within a rural area, kept separately from the ordinary QOF file.

The section 1400Z-2(c) election, at exit

Made on the return for the year of disposition. Without it, the fund's appreciation is taxed like any other gain even after a full ten-year hold.

Where it goes wrong

This is not a listed or reportable transaction, and the mechanism itself is not aggressive. The exposure right now is almost entirely about timing and paperwork, not about the legal position.

Investing new money into an expiring zone

A dollar invested today goes into a zone designated under the original program, one that expires December 31, 2028, and earns no basis step-up at all, since every step-up window under the old rules has already closed. The 10-year fair-market-value exclusion still applies if the interest is held that long, though the specific fund's own standing is worth verifying rather than assumed. The client is buying into a short remaining zone life with none of the step-up that made this program's earlier years attractive. New money generally does better waiting for a 2027-and-later zone.

• Missing the 180-day deadline. The deferral is simply lost. There is limited relief for a defective election itself, but none for having invested late.
• Forgetting the December 31, 2026 forced inclusion. A client who deferred a gain into an original-program fund owes tax on that amount on the 2026 return whether or not the fund interest has been sold, and IRS transitional guidance (Notice 2026-40) confirms it cannot be deferred again. Plan the cash for it well before the return is due.
• The fund failing its own 90% test. That risk sits with the fund, not the investor, but it still threatens the investment the client is holding, so it is worth knowing whose job the working-capital safe-harbor paperwork actually is.
• Treating this like a like-kind exchange. Only the gain is eligible for deferral. Contributing the full sale proceeds does not defer any more of it; the excess is simply a non-qualifying investment in the fund.
• A related-party investment that does not qualify. Missing the 20% common-ownership threshold that decides whether the gain is eligible at all.
• A substantial-improvement shortfall. A used building not improved enough within 30 months, or a land-only deal with no active business built on it, fails the property test, even though land itself is generally exempt under Rev. Rul. 2018-29.

OBBBA also backs the fund's own reporting duties with a new penalty under section 6726: a charge for every day a required return is late or incomplete, capped per return, capped far higher for a large fund, and raised again for intentional disregard. That exposure sits with the fund, but an investor relying on a sponsor's fund should know it exists.

A situation where this comes up

The version I see most often right now is a client with a large gain already realized this year, comfortable with deferral, asking whether to move quickly. The honest answer usually starts with the calendar rather than the gain: money invested before 2027 buys into an expiring zone with no remaining step-up, while waiting for a 2027 zone captures both. The 180-day clock does not wait for that answer, so this conversation has to happen early, not after the deadline has nearly run.

The version that worries me is the client already holding an original-program fund from a 2024 or 2025 gain, with nothing budgeted for the end of 2026. The interest has not been sold, there is no liquidity event on the horizon, and the tax on the deferred gain is coming due anyway. That conversation needs to happen well before the return is filed, not when the bill shows up.

The third version is the client who wants real estate exposure without the active management a direct purchase requires, and assumes this works like a 1031 exchange. It does not: no replacement-property requirement, and no obligation to reinvest anything beyond the gain itself. Explaining that difference up front keeps a client from structuring the sale wrong before the fund investment happens.