Opportunity zones for real estate investors

By Tom, CPA · Updated October 27, 2026

Part of: Rental Property Taxes

TL;DR: You can defer a capital gain by investing it in a qualified opportunity fund within 180 days. Under the 2025 law, investments made after 2026 defer the gain for up to five years, get a 10% basis increase at five years (30% in rural funds), and can exclude appreciation on the fund after 10 years. New zones take effect Jan. 1, 2027. The 2026 deadline catches every older deferral.

Educational only, not tax, legal, or investment advice. Examples are illustrations, not predictions. Rules and limits change; verify current figures and talk to a qualified professional about your situation.

Your tenant pays the mortgage; the IRS pays for the roof (eventually, over 27.5 years). In an opportunity zone, the IRS might also forgive the tax on the building's appreciation, if you hold it for a decade, put the right kind of money in, and improve the property enough. That is three ifs, and every one of them has a regulation.

Qualified opportunity zones (QOZs) were created by the 2017 tax law in IRC 1400Z-1 and 1400Z-2. The 2025 law (P.L. 119-21, the One, Big, Beautiful Bill Act) made the program permanent with rolling 10-year zone designations, according to the IRS. As of Oct 2026, we are in a transition year: the original deferrals all come due on Dec. 31, 2026, and the first new zones start on Jan. 1, 2027. This guide explains both regimes for real estate investors.

CPA Warning Label: An opportunity zone deferral is a loan from the IRS with a due date. The 10-year exclusion is the prize, and it only pays if the deal itself makes money.

How OZ deferral works

The mechanics in four steps:

1. You have an eligible gain. Generally capital gain (including section 1231 gain, net of 1231 losses, under the regulations) from a sale to an unrelated person. Stock gains, crypto gains, a rental property sale and gains passed through on a K-1 can all qualify.
2. You invest an amount equal to the gain in a qualified opportunity fund (QOF) within 180 days. A QOF is a partnership or corporation that self-certifies on Form 8996 and holds at least 90% of its assets in qualified opportunity zone property. You invest only the gain, not the full sale proceeds, which is a key difference from a 1031 exchange.
3. You elect deferral on Form 8949 for the year of the gain, and file Form 8997 every year you hold the investment.
4. The deferred gain is recognized later, on the inclusion date, with possible basis increases depending on the regime.

Old regime: investments made by Dec. 31, 2026

Deferred gain must be included in income on the earlier of an inclusion event (such as a sale) or Dec. 31, 2026, per IRS Notice 2026-40. That means every pre-2027 OZ investor recognizes the deferred gain on their 2026 return, typically due in April 2027, even though they still hold the investment. The old 10% and 15% basis bumps required five- and seven-year holds by that 2026 date, so new investments made recently do not get them. Plan cash for that tax bill now.

New regime: investments made after Dec. 31, 2026

For gains invested in a QOF on or after Jan. 1, 2027, the deferred gain is included in the year that includes the earliest of a sale, another inclusion event, or five years from the date of the investment. Notice 2026-40 confirms that gains realized on or before Dec. 31, 2026, can still be deferred into the new regime if the investment is timely (within 180 days) and made on or after Jan. 1, 2027.

10-year basis step-up

There are two basis benefits, and investors mix them up constantly.

• Five-year bump on the deferred gain (new regime). If the qualifying investment is held at least five years, basis increases by 10% of the deferred gain, or 30% for investments in a qualified rural opportunity fund, under IRC 1400Z-2(b)(2)(B) as amended. That means 90% (or 70%) of the deferred gain is eventually taxed.
• Ten-year exclusion of appreciation. If you hold the QOF investment at least 10 years and elect, your basis equals fair market value when you sell, so appreciation on the fund investment itself is excluded. For investments after 2026, per Notice 2026-40, the basis equals fair market value on the earlier of the sale date or the date 30 years after the investment, which effectively caps the tax-free growth window at 30 years.

For real estate, the 10-year exclusion is where the money is. A QOF partnership that sells a building after 10 years can, under the regulations, pass through an election that excludes the gain, including depreciation recapture, for investors who meet the holding period.

Illustration: Fran sells stock in 2027 with a $200,000 long-term gain and invests $200,000 in a QOF partnership within 180 days. Assumptions: urban QOF, investment made June 1, 2027; 15% long-term rate plus 3.8% NIIT; the fund investment grows to $450,000 after 10 years. The deferred gain is included in the year that includes June 1, 2032 (five years), with a 10% basis increase, so taxable deferred gain is $180,000. Tax then: $180,000 times 18.8% = $33,840. In 2037, after 10 years, she sells the QOF interest for $450,000 and elects the exclusion. Gain on the $250,000 of appreciation: $0. Without the OZ, investing after-tax money and paying 18.8% on a $250,000 gain would have cost $47,000 in tax at exit. Real savings, but only if the fund actually grows. A QOF that loses value still leaves her owing tax on the deferred gain in 2032.

Substantial improvement test

Real estate inside a QOF must be qualified opportunity zone business property. For a building that already exists, the fund usually must substantially improve it: within any 30-month period after acquisition, additions to the basis of the property must exceed the adjusted basis of the property at the start of that period (IRC 1400Z-2(d)(2)(D)(ii)). Under the final regulations, land is not required to be substantially improved, and the basis of land is excluded from the test for the building.

What that means in practice:

• Buying a $1,000,000 building ($300,000 land, $700,000 building) requires more than $700,000 of capital improvements within 30 months. Light rehab does not cut it.
• Ground-up construction, which is "original use," satisfies the test by definition.
• The regulations include a working capital safe harbor that lets a fund hold cash for development under a written plan and schedule, generally up to 31 months, with extensions in some cases.
• Vacant buildings that have been vacant long enough can qualify as original use under the regulations.

Under Notice 2026-40, compliance tests after a zone's designation period ends have transition rules; funds holding property in original zones get continuing compliance relief through Dec. 31, 2047, for certain tests. Fund sponsors should be reading that notice closely; investors should ask how the fund handles it.

Current law timeline

As of Oct 2026, according to the IRS and Rev. Proc. 2026-14:

Rev. Proc. 2026-14 identifies 25,332 low-income community census tracts eligible for nomination, of which 8,334 are entirely rural. Each state can designate no more than 25% of its eligible tracts, with small-state exceptions. Because the new zone map is not final as of this writing, any property purchased now on the theory that it will be in a 2027 zone is a speculation on a government list.

2027 note: the 2027 inflation adjustments do not affect OZ rules directly, and the IRS had not published them as of Oct 2026 in any case.

Who it fits

Opportunity zones tend to work best for:

• Investors with a large capital gain from stock, a business sale or crypto who want to keep the principal working and are comfortable with a 10-year illiquid hold.
• Developers and long-horizon real estate investors who would build or heavily rehab in a qualifying tract anyway.
• Rural investors, who can get the larger 30% basis increase through a qualified rural opportunity fund for post-2026 investments.

They tend to fit poorly for:

• Anyone who needs the money within 10 years.
• Investors comparing a mediocre OZ deal with a better non-OZ deal. Tax benefits do not rescue a bad project.
• People who sold a rental and want to keep deferring everything. A 1031 exchange defers the entire gain, including recapture, and has no five-year inclusion date; an OZ only takes the gain portion and makes you pay most of it after five years.

Compare carefully with other strategies in rental real estate tax strategies. For estate considerations, note that the deferred gain does not get a step-up at death under the OZ rules; see estate planning basics.