Dilapidations Accounting: ASC 410-20, Entries, and Tax

Dilapidations accounting under US GAAP treats a lease restoration obligation as a liability from lease commencement, not a cost at lease end. ASC 410-20 requires the tenant to record the estimated restoration cost at fair value as an Asset Retirement Obligation (ARO), capitalize an equal amount to the related asset, and then expense that amount over the lease term through depreciation and accretion. The tax deduction works on a completely different clock: nothing is deductible until the work is actually performed, which produces a timing gap most tenants underestimate.

When the Provision Must Be Recognized

A dilapidations obligation exists whenever the lease requires the tenant to restore the premises at the end of the term. ASC 410-20 treats this as a legal obligation tied to the retirement of a tangible long-lived asset, covering obligations arising from acquiring, constructing, or operating that asset.¹ The obligation is unconditional even when the timing or method of settlement is uncertain; that uncertainty affects measurement, not the decision to recognize.²

Two conditions trigger recognition: a legal obligation exists, and its fair value can be reasonably estimated. The bar for “reasonably estimated” is low. If the settlement date or range of dates, the possible methods of settlement, and the probabilities associated with each can be determined, the entity has enough information to apply the expected present value technique and must book the liability.² In the rare case where fair value truly cannot be estimated, the entity discloses that fact and explains why.³

ASC 410-20 or ASC 842

Not every end-of-lease cost is an ARO. The dividing line runs through what triggers the obligation. Costs to remove leasehold improvements the tenant installed during the lease are typically AROs under ASC 410-20. Costs to dismantle or remove the underlying asset itself, when imposed by the lease agreement, generally qualify as lease payments under ASC 842 and get folded into the lease liability and right-of-use (ROU) asset at commencement.⁴

Classification changes how the cost hits the income statement. An ASC 842 lease payment increases the ROU asset and lease liability up front and flows through lease expense. An ASC 410-20 ARO creates a separate depreciation charge plus accretion expense. Misclassifying between the two misallocates expense between operating and financing categories, and auditors will flag it.

Measuring the Provision

Initial measurement uses an expected present value technique, which ASC 410-20-30-1 identifies as “usually the only appropriate technique” for estimating ARO fair value.² Three inputs drive it:

Expected cash flows. Probability-weighted estimates of what restoration will cost, reflecting what a market participant would consider. This includes contractor costs, inflation, and a market-risk premium representing the price a third party would demand for bearing the inherent uncertainties.⁵
Discount rate. A credit-adjusted risk-free rate, built by starting with the zero-coupon US Treasury rate matching the expected settlement timing and adjusting it for the entity’s own credit profile.²
Settlement timeline. The estimated date or range of dates when restoration will occur, with probabilities for each scenario.

The market-risk premium is one of the inputs companies most often mishandle. It goes into the cash flow estimate, not the discount rate. The entity’s own credit risk sits in the discount rate.⁵ Mixing the two double-counts risk and overstates the liability.

Most tenants engage a building surveyor or engineer to produce a property condition report estimating future restoration costs. ASTM E2018 provides a baseline process for these assessments, though the standard itself acknowledges that no assessment eliminates uncertainty about deficiencies or remaining useful life.⁶ A single-point surveyor estimate is a starting point. The accounting team still needs to run scenario analysis, layer in inflation across the remaining lease term, and add the market-risk premium before arriving at fair value.

Journal Entries and Running the Liability

Initial Entry

On recognition, the lessee credits the ARO liability at fair value and debits an equal amount as an Asset Retirement Cost (ARC), which increases the carrying amount of the related long-lived asset.³ For a lessee restoring its own improvements, the ARC typically attaches to the leasehold improvement. Where the obligation relates to the premises themselves, the ARC may be added to the ROU asset instead.

Depreciation of the ARC

The capitalized ARC is depreciated systematically over the shorter of the asset’s useful life or the remaining lease term, using a method consistent with how the related asset is depreciated. That spreads the restoration burden across the periods that benefit from occupying the property rather than dropping it into the final year.

Accretion Expense

Because the ARO was recorded at a discounted amount, the liability grows as settlement approaches. ASC 410-20-35-5 measures that growth by applying the original credit-adjusted risk-free rate to the opening ARO balance for the period. The resulting charge is called accretion expense and is classified separately from interest expense.⁷ Across a ten-year lease, accretion can meaningfully increase the final liability, so it belongs in the budget rather than the footnote.

Revisions to the Estimate

Restoration estimates rarely hold still. Treatment on revision depends on direction. Upward revisions to expected cash flows are discounted at the current credit-adjusted risk-free rate as of the revision date. Downward revisions are discounted at the original rate used when the liability was first recognized.⁷ The revision adjusts both the ARO and the ARC, and prospective accretion is recalculated on the revised balances at the applicable rates. The asymmetric rule catches people out in a rising-rate environment: an upward revision gets hit twice, with higher cash flows discounted at a higher rate. Reassess estimates at least annually and document the assumptions behind each change.

Settlement

When restoration is performed, the lessee debits the ARO and credits cash for the actual cost. Any difference between recorded liability and actual spend is a gain or loss in the settlement period. Work spanning multiple reporting periods produces a proportional gain or loss based on costs incurred relative to total expected costs.⁷ Tenants who restore using in-house staff usually book a gain, because the ARO was measured at a fair value that included third-party pricing with a built-in margin and risk premium.

The Lessor Side

The lessor generally does not book an ARO. The restoration obligation belongs to the tenant, and the lessor holds a contractual right to have the property restored or to receive cash in lieu. Cash paid by the tenant (a composition payment) is recognized as income on receipt and offset by any repair costs the lessor later incurs. If the lessor performs the work directly, routine maintenance returning the property to its pre-lease condition is expensed, while work that extends the building’s life or enhances value beyond the original condition is capitalized and depreciated. If the tenant fails to restore and makes no compensating payment, the lessor evaluates whether the underlying property is impaired.

Tax Treatment and the Book-Tax Timing Gap

No Deduction Until the Work Happens

The book provision generates zero tax deduction while it sits on the balance sheet. IRC Section 461(h) requires economic performance before an accrual-method taxpayer can treat a liability as incurred, and for services like restoration work, economic performance occurs only as the contractor performs the services.⁸ The regulations under Section 461 confirm the all-events test is not satisfied until economic performance occurs.⁹ For the entire period during which the lessee is running depreciation and accretion through the P&L, the tax return shows nothing.

Repair or Capital Improvement

Once the work happens, tax treatment turns on what exactly is being done. An expenditure that is an ordinary and necessary business expense maintaining the property in its existing condition is deductible under IRC Section 162.¹⁰ The tangible property regulations under Treasury Regulation 1.263(a)-3 require capitalization for expenditures constituting a betterment, restoration, or adaptation of the property to a new use.¹¹

Betterment. Fixes a pre-existing defect, materially adds to the property, or materially increases its capacity or output.¹¹
Restoration. Returns property that has deteriorated to the point of being nonfunctional, or replaces a major component for which a loss or basis adjustment was previously taken.
Adaptation. Converts the property to a use inconsistent with the taxpayer’s ordinary use when it was placed in service.

Only work that strictly maintains the pre-lease condition qualifies for an immediate repair deduction. Replacing a major building system or materially improving the property beyond its original state must be capitalized under IRC Section 263.¹²

Qualified Improvement Property

Capitalized interior improvements to nonresidential buildings can qualify as Qualified Improvement Property (QIP), which carries a 15-year recovery period rather than the standard 39 years for nonresidential real property.¹³¹⁴ QIP covers improvements to flooring, ceilings, interior walls, HVAC, electrical, and plumbing, but excludes enlargements, elevators, escalators, and the building’s internal structural framework.

For property acquired after January 19, 2025, the One Big Beautiful Bill Act permanently restored 100% bonus depreciation, replacing the phasedown that had been reducing the rate by 20 percentage points each year since 2023.¹⁵ QIP placed in service during 2026 is eligible for full first-year expensing, which accelerates the tax benefit when restoration work is capitalized rather than deducted as a repair.

Deferred Tax Asset

The book expense running for years without a matching tax deduction builds a temporary difference between the financial statement carrying amount and the tax basis. Under ASC 740, this produces a deferred tax asset representing the future benefit the company expects to realize once restoration is performed and the deduction is claimed. Each period, the deferred tax asset grows as the ARO generates book expense with no tax offset, and it reverses when the work is done and the deduction is taken. On a long-term lease, the balance can grow material enough to warrant separate disclosure, and companies should assess whether a valuation allowance is needed against it if future taxable income is in doubt.

Disclosure Requirements

ASC 410-20 requires entities to describe the nature of the obligations and the long-lived assets to which they relate, together with the methods and assumptions used to estimate fair value, including discount rates and the range of possible settlement dates. Where fair value cannot be reasonably estimated, the entity must disclose that fact and the reasons.³ A reconciliation of the beginning and ending ARO balance showing new obligations, settlements, accretion expense, and revisions is standard footnote practice. Auditors increasingly scrutinize the assumptions behind ARO measurements, and vague disclosures invite questions about whether the provision is supportable.

1
Deloitte Accounting Research Tool. Deloitte’s Roadmap – Environmental Obligations and Asset Retirement Obligations – Section: 4.3 Scope of ASC 410-20
2
PwC. 3.4 Recognition and Measurement (AROs)
3
Deloitte Accounting Research Tool. 4.4 Initial Recognition of AROs and ARCs
4
PwC. 3.3 ARO Scope Exclusions
5
Deloitte Accounting Research Tool. Initial Measurement of AROs and ARCs
6
ASTM International. Standard Guide for Property Condition Assessments – Baseline Property Condition Assessment Process
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Deloitte Accounting Research Tool. 4.6 Subsequent Measurement of AROs and ARCs
8
Office of the Law Revision Counsel. 26 USC 461 – General Rule for Taxable Year of Deduction
9
eCFR. 26 CFR 1.461-4 – Economic Performance
10
Office of the Law Revision Counsel. 26 USC 162 – Trade or Business Expenses
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eCFR. 26 CFR 1.263(a)-3 – Amounts Paid to Improve Tangible Property
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Office of the Law Revision Counsel. 26 USC 263 – Capital Expenditures
13
Office of the Law Revision Counsel. 26 USC 168 – Accelerated Cost Recovery System
14
Internal Revenue Service. Publication 946 (2025) – How to Depreciate Property
15
Internal Revenue Service. Notice 26-11 – Interim Guidance on Additional First Year Depreciation Deduction Under the OBBBA