Background with light gradient and lines

Put appreciated property into a partnership and you might brace for a bill, the way selling it would trigger one. There is a rule in the Internal Revenue Code that says, in most cases, you do not owe anything at that moment.

That rule is IRC Section 721, and it governs the tax treatment of property contributed to a partnership in exchange for an interest in that partnership. Under this rule, nothing is recognized when you hand assets over and receive an ownership stake back. It is one of the quiet workhorses of partnership law, the reason two people can pool assets into a new venture, or an investor can roll real estate into a larger structure, without a taxable event getting in the way. This guide walks through what the provision does, how the deferral works, the well-known 721 exchange, and the exceptions that can catch people out.

The key word is deferred, not erased.

The gain does not vanish, it waits, and understanding where it goes is the difference between using this rule well and getting surprised later.

What IRC Section 721 is

The rule is the partnership version of a simple idea: moving property into a shared entity should not, by itself, be treated as a sale.

The statute puts it plainly. No gain or loss shall be recognized to a partnership or to any of its partners in the case of a contribution of property to the entity in exchange for a stake in it. That single sentence, written in the code as § 721, is the whole general rule. Section 721 generally provides that no gain or loss shall be recognized when a contribution is made, and it applies to a limited liability company that is an LLC taxed as partnerships just as much as to a general partnership. Contributing property to a partnership in exchange for an interest is the everyday case it was built for. Whether the venture is brand new or has run for decades, a contribution of property in exchange for a partnership interest slides through without recognition. The property itself can be almost anything the IRS treats as property, cash, real estate, intellectual property, or equipment, since Section 721 of the internal revenue code reads the term broadly.

This is nonrecognition, not exemption.

The transaction is tax-deferred, which means the day of reckoning is pushed down the road rather than canceled.

How the deferral actually works

The gain does not disappear because the tax code keeps track of it through basis.

When you contribute appreciated property, your basis in that property carries over and becomes your basis in the partnership interest you receive. The firm, in turn, takes the same carryover basis in the asset itself, so the partnership's basis mirrors your basis in the contributed property rather than its fair market value. No gain is recognized when property is contributed, and no loss is recognized when property is contributed, so nothing is includible in the gross income of a person for income tax purposes at that moment. That preserved figure is how the built-in gain, the spread between what the property is worth and what you paid, stays on the books for later. When the partnership eventually sells the asset, or you sell your interest, that deferred gain finally gets recognized. The gain you deferred by moving property to the partnership comes back into view then. The rules even steer that built-in gain back to the contributing partner, so the person who brought in the appreciated property is the one taxed on it down the line.

Basis is the memory of the transaction.

Track it correctly at the time of contribution and the deferral holds up cleanly years later when property is contributed elsewhere or sold.

The 721 exchange and UPREITs

The most talked-about use of this rule shows up in real estate, where it is often called a 721 exchange.

Here an investor contributes appreciated real property to the operating partnership of a real estate investment trust, or REIT, in exchange for operating partnership units instead of cash. Because it runs through the statute, this tax-deferred exchange is not treated as a taxable sale, so the investor keeps deferring capital gains and depreciation recapture they would owe on an outright sale. In effect they make the swap in exchange for an ownership interest in a much larger pool, trading one investment for many. In return they gain diversification, liquidity, and professional management, trading a single building for units in a much larger pool. Those partnership units can later be converted to REIT shares, though that conversion, and any eventual sale, is when the deferred gain finally comes due.

The 721 exchange is a one-way door worth respecting.

Once property goes in, it cannot later use a 1031 exchange, and there is usually a holding period before units convert, so the move rewards investors who are ready to let go of direct control.

How Section 721 compares to Section 351

If this sounds like the corporate world, that is because it has a close cousin.

Sections 351 and 721 are the two big nonrecognition rules for putting property into an entity, Section 351 for corporations in exchange for stock, and § 721 for partnerships in exchange for an interest. The mechanics rhyme, but one difference matters a lot. Section 351 requires the people contributing to control at least 80% of the corporation right after the transfer, while the partnership rule has no such control requirement. That is why a single investor can contribute property in exchange for ownership of a giant, pre-existing entity and still get nonrecognition, something the corporate rule would not allow whether the ownership is direct or indirect.

The missing control test is what makes partnerships so flexible.

It is the quiet reason so much real estate and private equity is structured through partnerships rather than corporations.

The exceptions worth knowing

The provision is generous, but it is not unconditional, and three limits deserve attention.

First, it applies to property, not services. If a partner receives an interest in exchange for work rather than property, that value is taxable as ordinary income, since services are not property. Second, there is the investment company rule under Section 721(b). The nonrecognition rule shall not apply to gain realized on a transfer of property to a partnership that would be treated as an investment company, within the meaning of Section 351, if the partnership were incorporated. This rule treats certain partnerships like investment companies. In plain terms, a taxpayer cannot pool marketable securities held for investment into an investment partnership purely to diversify appreciated portfolios without recognition. A taxpayer contributing appreciated property to a partnership of that kind can face real tax consequences, and the partnership gain does not get to hide. Third, contributions of built-in gain property to a venture with related foreign partners fall under Section 721(c), where the regulations require the remedial allocation method and extra reporting, and can force gain recognition if those conditions are not met.

Most straightforward contributions clear all three with room to spare.

Real estate rolled into a domestic UPREIT rarely trips the investment company test, and the foreign partner rule only bites when foreign partners are actually in the picture.

How CPA firms handle Section 721

For a CPA firm, this is a rule where the contribution is easy and the follow-through is where the value lives.

Setting the carryover basis correctly, tracking built-in gain to the contributing partner, testing a deal against the investment company and foreign partner exceptions, and applying the remedial allocation method when related foreign partners are involved is exactly the detailed partnership work that rewards knowing the code section cold. At Madras Accountancy, we help U.S. CPA firms handle the tax preparation behind partnership contributions and 721 exchanges, from setting basis at the time of contribution to keeping the bookkeeping that tracks each partner's deferred gain for the years it stays on the books.

The contribution is one day, the deferral lasts years.

Get the basis and the built-in gain right up front, and the nonrecognition holds up whenever the property or the interest is finally sold.

This article is general information, not tax advice, so check the current Internal Revenue Code or a tax professional for your situation.

Frequently asked questions

What is IRC Section 721? IRC Section 721 is the Internal Revenue Code provision stating that no gain or loss is recognized to a partnership or its partners on a contribution of property in exchange for an interest in the partnership. It lets property move in without an immediate bill.

Is a 721 contribution tax-free? No, it is tax-deferred rather than free and clear. Nothing is recognized at the time of contribution, but your basis carries over and the built-in gain is preserved, so the bill is paid later when the partnership sells the property or you sell your interest.

What is a 721 exchange? A 721 exchange is the real estate use of the rule, where an investor contributes appreciated property to a REIT's operating partnership in exchange for operating units. It lets the investor keep deferring capital gains while gaining diversification and liquidity through the larger structure.

How is a 721 contribution different from Section 351? Both defer gain on contributing property to an entity, but Section 351 covers corporations in exchange for stock and requires 80% control after the transfer, while Section 721 covers partnerships in exchange for an interest and has no control requirement. That makes partnership contributions far more flexible.

Does a 721 contribution apply to services? No. The rule applies to contributions of property, not services. A partner who receives a partnership interest for services generally recognizes ordinary income equal to the value of the interest, because services are not treated as property under the rule.

What is the investment company exception under 721(b)? Section 721(b) says the nonrecognition rule does not apply to gain on a transfer of property to a partnership that would be treated as an investment company under Section 351 if it were incorporated. It stops people from pooling marketable securities into an investment partnership just to diversify appreciated holdings tax-deferred.

What is Section 721(c) and related foreign partners? Section 721(c) addresses contributions of built-in gain property to a partnership with related foreign partners. To keep the gain within U.S. taxation, the regulations require the partnership to use the remedial allocation method and meet reporting rules, and can require the contributing partner to recognize gain if those conditions are not satisfied.

Can I do a 1031 exchange after a 721 exchange? No. Once property is contributed through a 721 exchange, it is no longer eligible for a future 1031 exchange. The move is one-directional, which is one reason investors weigh a 721 exchange carefully before giving up direct control of the property.

Table of Contents

Explore More Blogs

Image
2026 1099 Reporting Threshold: New IRS Rules for 1099-NEC, 1099-MISC, and 1099-K
Published On:
September 16, 2026

The 2026 1099 reporting threshold changed: 1099-NEC and 1099-MISC now start at $2,000, and 1099-K is back to $20,000. Here is what you must file.

Image
Sales Tax Holiday 2026: What Qualifies and How the Exemption Works
Published On:
September 16, 2026

A plain guide to how a 2026 sales tax holiday works, which items are exempt, and the rules on price caps, refunds, and rain checks.

Image
Form 7004: How to Get a 6-Month Business Tax Extension
Published On:
September 16, 2026

Form 7004 buys a 6-month extension of time to file business returns like 1065, 1120-S and 1120. Deadlines, e-file steps and the payment trap.

View all posts
Icon
Icon