Contingent value rights and earnouts are deferred purchase price mechanisms, and their tax and accounting treatment splits cleanly by role: the seller reports gain under the installment method by default with capital gains rates if the payment qualifies as purchase price, the buyer folds later payments into asset basis (usually goodwill amortized over 15 years) or into stock basis, and the acquiring entity records the obligation at fair value on the acquisition date under ASC 805 and — if the payment is classified as a liability — remeasures it every reporting period through earnings.
The mechanism you’re dealing with matters less than you might think for tax purposes. CVRs typically appear in public-company deals (often pharmaceutical acquisitions), pay on binary regulatory events like FDA approval, and can trade on an exchange. Earnouts sit in private deals, pay on financial targets like revenue or EBITDA, and are personal contractual rights that don’t trade. The federal tax rules discussed below apply to both; the classification questions play out the same way.
How the Seller Is Taxed
The seller has two questions to answer, in order. First: is the payment purchase price or compensation? Second, assuming it’s purchase price: when is the gain recognized?
Installment Method as the Default
Under IRC §453, the installment method applies automatically to any sale where at least one payment is received after the year of disposition.1Office of the Law Revision Counsel. 26 USC 453 – Installment Method Because CVR and earnout payments arrive after closing by definition, the installment method is the starting point for essentially every contingent payment arrangement. Gain is recognized as payments come in, spread across the years they’re actually received.
Contingent payments complicate the arithmetic because the total selling price isn’t known at closing. The regulations give three basis recovery rules depending on how the deal is structured:2eCFR. 26 CFR 15a.453-1 – Installment Method Reporting for Sales of Real Property and Casual Sales of Personal Property
- Maximum selling price stated. If the contract caps the total contingent payments, the seller treats the cap as the selling price and allocates basis proportionally. If actual payments come in below the cap, the seller may claim a loss in the final year.
- Fixed payment period, no maximum price. Basis is allocated in equal annual installments across the payment years. No loss is allowed in a year where the payment falls short of the allocated basis; the unrecovered basis carries forward.
- Neither maximum price nor fixed period. Basis is recovered ratably over 15 years. The regulations flag that arrangements without either constraint raise the question of whether a true sale has occurred or whether the payments are really royalty income.
Electing Out
The seller can elect out of the installment method by reporting the full gain in the year of sale.3Office of the Law Revision Counsel. 26 USC 453 – Installment Method The election must be made on or before the return’s due date (including extensions) for the year of disposition, and revoking it later requires IRS consent. Electing out forces the seller to value the contingent right at fair market value and include that amount in year-of-sale gain, so it requires a defensible valuation on the front end.
The Open Transaction Method
The open transaction doctrine, rooted in the Supreme Court’s 1931 decision in Burnet v. Logan, treats each payment as first a tax-free return of basis until the seller’s basis is fully recovered; only the excess is taxed as capital gain.4Justia. Burnet v. Logan, 283 U.S. 404 (1931) Sellers prefer it because it defers all tax until basis is out. The IRS and courts have narrowed it to a thin exception, available only when the contingent right has no ascertainable fair market value. With modern valuation techniques able to price nearly any contingency, most advisors treat the open transaction method as largely unavailable in practice.
Purchase Price or Compensation
This distinction drives more tax outcomes than any other single issue in an earnout. Payments treated as additional purchase price are eligible for long-term capital gains rates. Payments recharacterized as compensation for post-closing services are ordinary income at rates that can be roughly double the capital gains rate, and they trigger employment taxes on top.
The IRS looks at substance, not labels. Several factors point toward compensation:
- Forfeiture on termination. If the seller loses the earnout by leaving employment, the IRS is almost certain to treat it as compensation. Payments that survive termination point toward purchase price.
- Duration alignment. Where the required employment period tracks the earnout measurement period, the correlation suggests the payments are for services.
- Below-market salary. An unusually low post-closing salary compared to peers suggests the earnout is making up the difference as deferred compensation.
- Differential payments. If selling shareholders who become employees receive larger per-share earnout payments than those who don’t, the excess looks like compensation for the employees.
- Linkage to valuation. If the initial purchase price already reflects the business’s full fair value, additional contingent payments have a harder time qualifying as purchase consideration.
The cleanest structure keeps the earnout completely independent of employment status. Every former shareholder receives the same per-share payment regardless of whether they work for the buyer afterward, and post-closing salary stands on its own as reasonable market compensation.
Section 409A Exposure
Once a contingent payment can be characterized as compensation, IRC §409A’s deferred compensation rules come into view. If the earnout creates a legally binding right to compensation payable in a future year, it falls under §409A’s strict timing and distribution rules. A violation triggers immediate taxation of the deferred amount, a 20% penalty tax, and an additional interest penalty. The combined hit can consume a substantial fraction of the payment.
Treasury regulations provide a narrow safe harbor for earnouts that pay on the same schedule and under the same conditions as payments to non-employee shareholders, provided the earnout period does not exceed five years. Outside that safe harbor, any earnout that could be treated as compensation needs §409A compliance built in from the start. Retrofitting isn’t an option.
How the Buyer Is Taxed
The buyer’s tax consequences turn on whether the deal was an asset acquisition or a stock acquisition.
In an asset acquisition, the buyer allocates all consideration — including contingent payments made in later years — among the acquired assets using the residual method under IRC §1060.5eCFR. 26 CFR 1.1060-1 – Special Allocation Rules for Certain Asset Acquisitions Consideration is assigned first to tangible assets, then to identifiable intangibles, with the residual falling on goodwill. When an earnout payment is made in a later year, the buyer reallocates consideration across the asset classes and adjusts basis accordingly.
In practice, most contingent payments increase the buyer’s goodwill. That additional goodwill basis is amortized under IRC §197 ratably over 15 years.6eCFR. 26 CFR 1.197-2 – Amortization of Goodwill and Certain Other Intangibles The 15-year clock runs from the original acquisition date, not from the date of the contingent payment. An earnout paid in year three is amortized over the 12 years remaining in the original period.
In a stock acquisition, contingent payments increase the buyer’s basis in the acquired stock. That basis has no immediate tax benefit; it only reduces gain or increases loss when the buyer eventually sells the stock.
Imputed Interest on Deferred Payments
Any deferred payment arrangement for the sale of property must include a minimum amount of stated interest to reflect the time value of money. If the contract doesn’t, the code reclassifies part of each payment from capital gain to ordinary interest income. Two provisions handle this: IRC §1274 applies to sales that generate a debt instrument, and IRC §483 is the backstop for deferred payment sales that don’t fall under §1274.7Office of the Law Revision Counsel. 26 USC 483 – Interest on Certain Deferred Payments8Office of the Law Revision Counsel. 26 USC 1274 – Determination of Issue Price in the Case of Certain Debt Instruments Issued for Property They don’t stack; when §1274 applies, §483 steps aside.
Adequacy of stated interest is measured against the Applicable Federal Rate, published monthly by the IRS. For April 2026, the AFR ranges from 3.59% annually for short-term obligations to 4.62% for long-term obligations.9Internal Revenue Service. Rev. Rul. 2026-7 – Applicable Federal Rates for April 2026 If the contract states interest below the AFR, or states no interest at all, the IRS imputes it, recharacterizing part of each payment as ordinary interest income regardless of how the contract labels the amount.
Some transactions escape. Section 1274 doesn’t apply to sales with total payments of $250,000 or less, sales of a principal residence, or certain farm property sales. Section 483 exempts sales where the total price cannot exceed $3,000. For the M&A deals where CVRs and earnouts appear, these thresholds are almost never in play.
Acquirer Accounting Under ASC 805
Financial accounting runs on a separate track from tax. ASC 805 requires the acquirer to measure the contingent payment obligation at fair value on the acquisition date and include it in total purchase consideration.10Deloitte Accounting Research Tool. Deloitte’s Roadmap: Business Combinations – 5.7 Contingent Consideration That initial fair value increases the goodwill recorded on the balance sheet.
Estimating fair value is not a back-of-envelope exercise. Valuation firms use probability-weighted expected outcome models or Monte Carlo simulations to account for uncertainty in the triggers and payment timing.11KPMG. Accounting and Tax for Contingent Value Rights Complex structures with multiple milestones, tiered payments, or variable measurement periods can produce valuation engagements running into the tens of thousands of dollars.
Liability or Equity Classification
What happens after the acquisition date depends entirely on whether the contingent payment is classified as a liability or as equity. The classification turns on the settlement terms and whether the arrangement meets specific criteria in the GAAP codification.
Liability classification is far more common, particularly for cash-settled arrangements. A liability-classified obligation is remeasured to fair value at every subsequent reporting date, with changes running through the income statement as gains or losses.11KPMG. Accounting and Tax for Contingent Value Rights The result is earnings volatility that can swing quarterly results. When a drug candidate’s odds improve, the liability rises and the acquirer reports a loss; if the drug fails, the liability drops to zero and the acquirer books a gain.
If the contingent payment is settleable only in the acquirer’s own equity and meets the classification criteria, it can be recorded as equity. Equity-classified contingent consideration is not remeasured after the acquisition date. Initial fair value stays fixed until the contingency resolves, and settlement is accounted for entirely within equity.10Deloitte Accounting Research Tool. Deloitte’s Roadmap: Business Combinations – 5.7 Contingent Consideration Equity classification avoids the income statement volatility, which is why acquirers often prefer it, though qualifying is harder than it looks.
Reporting Requirements
Form 8594 for Asset Deals
When a business sale is an applicable asset acquisition, both buyer and seller file IRS Form 8594 with their returns for the year of closing, reporting how the purchase consideration was allocated across asset classes.12Internal Revenue Service. About Form 8594 – Asset Acquisition Statement Under Section 1060
Contingent payments create an ongoing filing obligation. When an earnout payment is made — or the contingency expires unpaid — in a year after the initial acquisition, both parties file a supplemental Form 8594 reflecting the change in consideration and the revised allocation.13Internal Revenue Service. Instructions for Form 8594 Missing these supplemental filings is one of the more common compliance mistakes in earnout deals. The obligation persists for every year consideration changes, potentially spanning the full measurement period.
SEC Disclosure for Public CVRs
Public companies issuing CVRs as part of an acquisition also face securities disclosure obligations. Issuing CVRs to acquired-company shareholders is a material corporate event that triggers an SEC Form 8-K filing, due within four business days.14U.S. Securities and Exchange Commission. Form 8-K Current Report Instructions CVRs listed on an exchange must meet that exchange’s specific listing standards, which set conditions on structure, settlement terms, and ongoing disclosure.
Section 280G Golden Parachute Risk
One tax hazard catches people off guard. When an earnout is paid to a disqualified individual (typically a highly compensated officer or a shareholder holding at least 1% of the company) and the payment is contingent on a change in ownership or control, IRC §280G may classify the payment as an excess parachute payment.15eCFR. 26 CFR 1.280G-1 – Golden Parachute Payments The consequences are punitive on both sides: the recipient owes a 20% excise tax on the excess amount, and the buyer loses its deduction for the payment entirely.
The risk is most acute in management buyouts and leveraged acquisitions where the selling principals hold significant equity and also serve as top executives. The §280G analysis compares parachute payments to the individual’s historical compensation base. If total payments exceed three times the individual’s average annual compensation over the preceding five years, the excess portion triggers the penalty. Structuring around this issue requires planning well before the deal closes; it isn’t a problem you can solve at the signing table.