In accounting, appreciation is the increase in an asset’s market value above what a company or individual paid for it. Under U.S. Generally Accepted Accounting Principles, most appreciation is not recorded on the books at all. Assets sit at their original purchase price, and the gain becomes visible only when the asset is sold. A handful of exceptions exist for actively traded financial instruments and, more recently, crypto. And when a sale finally happens, the realized gain shows up on the income statement and gets taxed, sometimes at capital gains rates and sometimes as ordinary income through depreciation recapture.
That is the short answer. The rest of this article walks through why the rule works that way, which assets escape it, and what actually happens on the financial statements and the tax return when appreciation is realized.
Why the Balance Sheet Usually Ignores Appreciation
The Historical Cost Principle is the reason. GAAP requires most assets to be recorded at what the company actually paid, documented by a receipt or closing statement, and that number stays put. No adjustments are made for rising markets, real estate booms, or inflation. The Financial Accounting Standards Board keeps this framework because a purchase price is objective and verifiable, while fair market estimates rest on assumptions and can move with sentiment.
The consequence is easy to see. A manufacturing plant bought for $50 million stays on the books at $50 million even if comparable properties now sell for $60 million. Land is the sharpest example, because land is never depreciated: its carrying value remains the original cost, sometimes for decades, no matter what the local market does. Any appreciation is invisible to anyone reading the statements.
The result is that many long-held corporate assets carry book values far below their real economic worth. That hidden value only surfaces at sale. This is intentional. Accounting would rather understate value than report paper gains that could evaporate. The conservatism protects investors and creditors from relying on numbers that might not hold up.
The asymmetry with depreciation is worth noting. Accounting has no problem writing assets down as they lose value through use; depreciation is required. Appreciation gets the opposite treatment: gains are deferred until a transaction confirms them. Losses as they occur, gains only when realized.
When Unrealized Appreciation Does Get Recorded
GAAP carves out exceptions where a reliable, observable market price exists, which makes the “too subjective” argument harder to sustain. The treatment depends on the type of asset.
Equity Securities
Since 2018, GAAP has required most equity investments with a readily determinable fair value to be measured at fair value each reporting period, with all changes flowing directly into net income.1FASB. Investments – Equity Securities (Topic 321) If a company holds publicly traded stock that rises $500,000 in a quarter, that unrealized gain hits earnings immediately, even though no sale occurred. A drop reduces net income the same way.
Available-for-Sale Debt Securities
Debt securities classified as available-for-sale are also marked to fair value, but the unrealized gains and losses take a different route. They bypass the income statement and go into Other Comprehensive Income, a separate component of shareholder equity.2U.S. Securities and Exchange Commission. Investments Note to Financial Statements The balance accumulates on the balance sheet as Accumulated Other Comprehensive Income (AOCI). When the security is finally sold, that accumulated gain or loss is reclassified out of AOCI into the income statement as a realized gain or loss. OCI is essentially a holding pen: it acknowledges the appreciation exists without treating it as earned income until the transaction is complete.
Crypto Assets
For fiscal years beginning after December 15, 2024, FASB requires crypto assets within the scope of ASC 350-60 to be measured at fair value, with all changes recorded in net income.3FASB. Intangibles – Goodwill and Other – Crypto Assets (Subtopic 350-60) This is a real shift. Previously, companies holding Bitcoin or similar assets could only write down impaired values and never write up appreciation. The new rule aligns crypto with equity securities: both gains and losses flow through the income statement as they happen.
A Boundary: IFRS Revaluation Does Not Apply Under U.S. GAAP
Companies reporting under International Financial Reporting Standards can revalue property, plant, and equipment to fair value under IAS 16, with the increase recognized in other comprehensive income and accumulated in a revaluation surplus account.4IFRS Foundation. IAS 16 Property, Plant and Equipment U.S. GAAP does not permit this. A U.S. company’s factory stays at historical cost minus depreciation, period. If you’re comparing a U.S. balance sheet to an IFRS one, expect the IFRS statements to show substantially higher asset values for identical properties.
Impairment Is a One-Way Street
The rule against recording appreciation extends into an unusual corner: recovery after a write-down. When events suggest a long-lived asset has lost significant value, GAAP requires an impairment loss to be recorded immediately. If that same asset later recovers, GAAP does not allow the write-down to be reversed. The loss stays on the books permanently, even if the conditions that caused it completely reverse. Appreciation after an impairment is just as invisible as appreciation from the day the asset was bought.
What Happens on the Financial Statements at Sale
Appreciation’s biggest moment arrives when the asset is sold. The realized gain equals the sale price minus the asset’s book value, which is the original cost less any accumulated depreciation. A building purchased for $2 million, depreciated to $1.2 million, and sold for $3 million produces a $1.8 million gain. That gain appears on the income statement, usually as a separate line such as “Gain on Sale of Assets,” and directly increases pre-tax and net income.
On the balance sheet, the transaction increases cash by the sale proceeds and removes the asset along with its accumulated depreciation. The higher net income flows into retained earnings, lifting total shareholder equity.
For assets whose unrealized appreciation was already being tracked through OCI, the sale triggers a reclassification. The accumulated gain moves from AOCI into the income statement, converting from a balance sheet equity item into a recognized earnings event. The balance sheet had reflected the value all along; the income statement is catching up.
Tax Consequences of Realized Appreciation
Once appreciation is realized, the tax bill arrives. How much is owed depends on the type of asset, how long it was held, and whether depreciation deductions were claimed along the way.
Capital Gains Rates
Assets held longer than one year qualify for long-term capital gains rates, which run below ordinary income rates. For 2026, individuals pay 0% on long-term gains up to certain income thresholds, 15% for middle-income earners, and 20% at the highest income levels. Corporations pay the flat 21% corporate rate on realized gains, with no separate capital gains preference. Short-term gains on assets held one year or less are taxed at ordinary income rates for both individuals and corporations.
Depreciation Recapture
If the asset that appreciated was also depreciated, the IRS claws back some of the prior tax benefit rather than letting the whole profit ride at capital gains rates.
For personal property like equipment, vehicles, and machinery, Section 1245 treats the gain as ordinary income up to the amount of all prior depreciation deductions.5Office of the Law Revision Counsel. 26 USC 1245 – Gain from Dispositions of Certain Depreciable Property Buy equipment for $100,000, depreciate it by $60,000, sell it for $110,000, and the first $60,000 of the $70,000 gain is taxed as ordinary income. Only the remaining $10,000 gets capital gains treatment.
For depreciable real property such as commercial buildings, Section 1250 is narrower. When straight-line depreciation was used, the gain attributable to prior depreciation is classified as “unrecaptured Section 1250 gain” and taxed at a maximum rate of 25%.6Office of the Law Revision Counsel. 26 U.S. Code 1250 – Gain from Dispositions of Certain Depreciable Realty Any gain above the depreciation amount is taxed at regular long-term capital gains rates. If accelerated depreciation was used and exceeded what straight-line would have produced, the excess is recaptured at full ordinary income rates.
Deferring or Avoiding the Tax
Two tax code provisions can eliminate or postpone the bill.
A Section 1031 like-kind exchange lets an owner swap one piece of investment or business real property for another without recognizing the gain. The rules are strict: only real property qualifies, the replacement must be identified within 45 days of selling the relinquished property, and the purchase must close within 180 days.7Office of the Law Revision Counsel. 26 USC 1031 – Exchange of Real Property Held for Productive Use or Investment Personal property like equipment and vehicles no longer qualifies. Miss either deadline and the entire gain becomes taxable.
The stepped-up basis at death under Section 1014 is even more powerful. When someone dies holding an appreciated asset, the heirs receive it with a tax basis equal to fair market value at the date of death.8Office of the Law Revision Counsel. 26 U.S. Code 1014 – Basis of Property Acquired from a Decedent All of the appreciation that built up during the decedent’s lifetime is permanently erased for income tax purposes. An investor who bought stock for $50,000 that grew to $500,000 leaves heirs with a $500,000 basis; a sale the next day at $500,000 owes zero capital gains tax. This one provision drives a large share of estate planning and hold-versus-sell decisions.