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Rollover Equity in Private Equity Deals: Tax Deferral, the 80/20 Split, Worked Example

By The Ledgerism Editorial Team · The Ledgerism Brief Editorial Team produces original, methodology-disclosed accounting and tax research—data trackers, databases, and reference guides built to be the most-cited source in the field. Every figure is verified against primary sources including FASB, the IRS, the PCAOB, NASBA, the AICPA, and state boards of accountancy.

Rollover equity in private equity lets a selling owner reinvest part of the sale proceeds into the buyer’s new company instead of cashing out fully. It is the mechanism behind the famous “second bite of the apple,” and when structured correctly it can defer tax on the rolled portion under Section 721 or Section 351. Sponsors use it to keep founders invested, aligned, and motivated through the next growth cycle.

What is rollover equity?

When a private-equity sponsor buys a company, it usually does not want the owner to walk away entirely. The owner knows the business, the customers, and the operations, and the sponsor’s return depends on the company continuing to perform. Rollover equity answers that by having the seller take part of the proceeds not in cash but in equity of the new entity the sponsor forms to hold the acquired business. The seller “rolls over” a slice of value into the buyer’s structure and becomes a continuing co-owner alongside the sponsor.

The rollover percentage, commonly 20 to 40 percent of the seller’s proceeds, is negotiated. A sponsor wanting strong alignment, or a founder who believes in the upside, pushes the rollover higher. A seller wanting liquidity pushes it lower. Whatever the split, the rolled portion is now at risk in the new company; it is no longer guaranteed cash.

The appeal beyond alignment is tax. A straight sale for cash is a taxable event: the seller recognizes gain and pays capital gains tax on the proceeds. A properly structured rollover, by contrast, can qualify for tax deferral, so the seller does not recognize gain on the rolled portion until that equity is later sold. The two common vehicles are a contribution to a partnership or LLC under Section 721 and a contribution to a corporation under Section 351. The choice depends on whether the buyer’s acquisition entity is taxed as a partnership or a corporation.

Why rollover equity matters in M&A

Rollover equity matters first as an alignment tool. A founder who has rolled a meaningful stake has skin in the game; the founder’s remaining wealth grows only if the company grows under the new ownership. That alignment is precisely what a sponsor wants from management it is retaining, and it is why rollover is nearly ubiquitous in lower-middle-market and middle-market private-equity buyouts and roll-ups.

It matters second as a wealth strategy for the seller. The “second bite of the apple” is the prospect that the rolled equity appreciates and is sold again at the sponsor’s exit, often at a higher multiple after the platform has grown through add-on acquisitions and operational improvements. A founder who rolls 30 percent and stays for a five-year hold can, in a successful deal, realize a second payout that rivals or exceeds the first. That upside is the trade for taking equity risk and deferring liquidity.

Third, it matters for tax. Deferring tax on the rolled portion keeps more capital invested and working. Instead of paying capital gains tax today on the rolled equity, the seller defers that tax until the second exit, which can substantially improve after-tax returns. In private-equity roll-ups, where founders frequently become equity holders in a growing platform, rollover is the standard structure that ties the founder’s outcome to the platform’s.

How rollover equity works (mechanics)

The structure follows a few common steps, with the precise path depending on the entity form.

The new acquisition entity. The sponsor forms a holding entity, often an LLC taxed as a partnership (sometimes called Topco or Holdco), to acquire the target. This entity will issue the equity the seller rolls into.

The split of consideration. The seller’s total consideration is divided between cash and rollover. For example, on a $50 million sale with a 30 percent rollover, the seller receives $35 million in cash and rolls $15 million into equity of the new entity.

The tax-deferred contribution. If the new entity is a partnership or LLC, the seller’s contribution of rollover equity is generally tax-deferred under Section 721, which provides that no gain or loss is recognized on a contribution of property to a partnership in exchange for a partnership interest. If the new entity is a corporation, the contribution can be tax-deferred under Section 351, provided the contributing parties are in “control” of the corporation immediately after the exchange (generally 80 percent), a requirement that is often satisfied by structuring the sponsor and rolling owners together.

Carryover basis. Because the rollover is tax-deferred, the seller’s basis in the old equity carries over into the new equity. The deferred gain is preserved in that lower basis and is recognized when the rolled equity is eventually sold.

The cash portion is taxable. The cash the seller receives is treated as a sale and is generally taxable in the year of closing. In some structures cash received alongside a Section 351 or 721 contribution is treated as “boot,” triggering gain recognition up to the amount of cash, which is why the cash and rollover legs are planned together.

Section 721 vs Section 351 rollover compared

Worked example

A founder sells her company to a private-equity sponsor in a deal valuing her equity at $50 million. Her tax basis in the company is $5 million. The sponsor forms an LLC taxed as a partnership (Topco) to hold the business and asks the founder to roll 30 percent.

The split: the founder receives $35 million in cash (70 percent) and rolls $15 million (30 percent) into Topco equity under Section 721.

Tax on the cash leg: the cash portion is taxable. The founder’s basis is allocated to the portion sold for cash. Allocating basis proportionally, 70 percent of her $5 million basis, or $3.5 million, offsets the $35 million cash. Her taxable gain on the cash leg is roughly $31.5 million ($35 million less $3.5 million), taxed at long-term capital gains rates.

Tax on the rollover leg: none at closing. The $15 million rolled into Topco under Section 721 is tax-deferred. The remaining $1.5 million of her old basis (30 percent of $5 million) carries over into her Topco interest, so her basis in the rolled equity is $1.5 million and the deferred gain of $13.5 million is preserved.

The second bite: five years later the sponsor sells the platform, and after add-ons and growth the founder’s 30 percent Topco stake is now worth $30 million. She sells it, recognizes gain measured against her $1.5 million carryover basis (roughly $28.5 million), and pays capital gains tax then. Her original rollover of $15 million has doubled, and she deferred tax on the rolled portion for five years, keeping that capital invested in the meantime. The combination of a first cash payout and a larger second payout is the second bite of the apple in action.

The accounting and tax treatment

The defining feature of a rollover is tax deferral, and it rests on the nonrecognition provisions of the Internal Revenue Code. Section 721(a) provides that no gain or loss is recognized to a partnership or to any of its partners when property is contributed to the partnership in exchange for an interest in the partnership. That makes a contribution of rollover equity into an LLC taxed as a partnership a nonrecognition event for the rolled portion. Section 351(a) provides parallel treatment for a contribution of property to a corporation in exchange for stock, conditioned on the contributors being in control (at least 80 percent of voting power and of each class of nonvoting stock) of the corporation immediately after the exchange.

Because the transaction is nonrecognition, the seller takes a carryover (substituted) basis in the new interest or stock under the basis rules of Sections 722 and 358. The deferred gain is embedded in that low basis and surfaces on the later sale. Where cash or other “boot” accompanies a Section 351 exchange, gain is recognized up to the amount of boot received, which is why the cash and rollover legs are sized together.

On the financial-accounting side, the buyer’s acquisition is accounted for under ASC 805, Business Combinations. The rolled equity held by the continuing owners is part of the post-combination capital structure; depending on the structure it may be reflected as a noncontrolling interest or as equity of the consolidated group, and the total consideration and any noncontrolling interest are measured under ASC 805. Rollover arrangements can also implicate compensation analysis if the rolled equity carries vesting or forfeiture tied to continued service, which can change the accounting from equity to compensation expense. Because the tax stakes are large and the requirements (the 80 percent control test for Section 351, the boot rules, the basis allocation) are technical, rollover structuring is done with tax counsel, often alongside a Section 338(h)(10) analysis on the cash-purchase side.

Common disputes and pitfalls

• Failing the Section 351 control test. If the contributors do not hold at least 80 percent control of the corporation immediately after the exchange, the contribution is taxable. Structuring the sponsor’s and rollers’ contributions together is essential where a corporate Topco is used (IRC Section 368(c) control definition).
• Unexpected boot. Cash received alongside a rollover can be treated as boot and trigger gain. Sellers expecting full deferral can be surprised by a tax bill on the cash leg if the legs are not planned carefully.
• Basis allocation errors. Allocating basis between the cash-sale portion and the rolled portion affects the gain recognized on the cash leg. Getting the allocation wrong overstates or understates current tax.
• Vesting that converts equity to compensation. If rolled equity is subject to vesting tied to continued employment, the IRS may treat it as compensation rather than a capital interest, and a Section 83(b) election may be needed to manage the timing of income.
• Loss of the second bite. Rollover equity is at risk. If the sponsor’s hold fails, the founder can lose the rolled value entirely; deferral protects no one from a bad investment.
• Liquidity and minority terms. Rolled equity is illiquid and usually minority. Drag-along, tag-along, and information rights, and the lack of a market to sell into, leave the founder dependent on the sponsor’s exit timing.
• Valuation of the rolled equity. The dollar value assigned to the rollover, and whether the founder rolls into the same security as the sponsor or a less favorable class, materially affects the second-bite outcome and is a frequent negotiation point.

Frequently asked questions

What is rollover equity in a private-equity deal?

It is the portion of sale proceeds a selling owner reinvests into the buyer’s new acquisition entity instead of taking in cash, commonly 20 to 40 percent. The seller becomes a continuing co-owner alongside the sponsor.

How is rollover equity taxed?

A properly structured rollover is tax-deferred on the rolled portion under Section 721 (contribution to a partnership or LLC) or Section 351 (contribution to a corporation). The seller recognizes gain on that portion only when the rolled equity is later sold. The cash portion of the sale is generally taxable at closing.

What is the “second bite of the apple”?

It is the chance for the seller to profit again when the sponsor sells the company in the next exit. The rolled equity can appreciate during the sponsor’s hold, producing a second payout on top of the cash received at the first sale.

How much equity do sellers typically roll over?

Commonly 20 to 40 percent of the seller’s proceeds, negotiated based on how much alignment the sponsor wants and how much liquidity the seller wants. Roll-up platforms often sit at the higher end to keep founders invested.

What is the difference between a Section 721 and a Section 351 rollover?

Section 721 applies when the buyer entity is a partnership or LLC and provides broad deferral on a contribution for a partnership interest. Section 351 applies when the buyer entity is a corporation and requires the contributors to control at least 80 percent of the corporation immediately after the exchange.

Is the cash part of the sale taxable?

Yes. The cash a seller receives is generally taxed as a sale in the year of closing, while only the rolled portion qualifies for deferral. A partial rollover therefore produces a mix of taxable cash and deferred equity.

What happens to my tax basis when I roll over equity?

Because the rollover is a nonrecognition event, your basis carries over into the new interest or stock. That carryover basis is typically low, so the deferred gain is recognized when you eventually sell the rolled equity.

What are the main risks of rolling over equity?

The rolled equity is at risk and illiquid: if the sponsor’s investment fails, the value can be lost, and you cannot easily sell a minority stake before the sponsor’s exit. Vesting conditions can also turn the equity into compensation for tax purposes.