What to Check Before Performing Lease Accounting Under US GAAP (ASC 842)

Under the old ASC 840, operating leases stayed off the balance sheet. A company could lease its entire office portfolio, its equipment fleet, and its vehicle pool — and none of it would appear as a liability. Investors had to read the footnotes to guess at the true obligations.

ASC 842 changed that. Now almost every lease — office space, equipment, vehicles, servers — creates a Right-of-Use (ROU) asset and a matching Lease Liability on the balance sheet from day one. For many companies, this added millions in balance sheet liabilities overnight.

But the standard itself is not the hard part. The hard part is the review that happens before the first journal entry is posted. Get the pre-accounting analysis wrong — misidentify the lease term, select the wrong discount rate, misclassify finance vs. operating — and every number that follows is wrong.

This is the checklist I work through before touching a lease in the books.

1. Does the contract actually contain a lease?

This question is less obvious than it sounds. Many contracts that look like service agreements contain an embedded lease — a right to use a specific identified asset that meets ASC 842's definition.

A contract contains a lease under ASC 842 if it conveys the right to control the use of an identified asset for a period of time in exchange for consideration. Three tests must all be met:

• Identified asset — there must be a specific asset, not just a general capacity. If a supplier can substitute an equivalent asset at any time and benefit from doing so, there is no identified asset and therefore no lease.
• Substantially all economic benefits — the customer must obtain substantially all economic benefits from using the asset during the contract period.
• Right to direct use — the customer must control how and for what purpose the asset is used throughout the period of use.

Where this gets missed in practice: IT service contracts, data centre agreements, manufacturing contracts, and logistics arrangements frequently contain embedded leases of specific servers, warehouse space, or delivery vehicles. Auditors are catching this — embedded leases in service contracts are now one of the top three ASC 842 audit findings. Before signing a service agreement, read for asset specificity and substitution rights.

2. What is the lease commencement date — and why it matters more than the signing date

The commencement date is when the lessee obtains the right to control the use of the underlying asset. This is not the date the contract is signed. It is not the rent commencement date. It is when control transfers.

This distinction matters for three things: the initial recognition date, the discount rate (which uses rates as of commencement, not signing), and the initial measurement of the lease liability. If commencement is on 15 March and the interest rate environment has moved since the January signing date, the March rates apply.

For leases with significant lead time between signing and occupancy — build-to-suit arrangements, equipment with long delivery schedules, or leases where the lessor needs to complete fit-out — the commencement date can be months after signing, and rates may differ materially.

3. Getting the lease term right — the most judgmental area in ASC 842

The lease term under ASC 842 is not just the non-cancellable period in the contract. It includes:

• Renewal option periods that are reasonably certain to be exercised
• Termination option periods that are reasonably certain not to be exercised

"Reasonably certain" is a high threshold — essentially the same as "highly probable" in IFRS language. It requires more than a probability assessment; it requires significant economic compulsion or contractual obligation.

This is where the most consequential errors are made. Pease Bell's 2025 audit findings review identified lease term errors as the primary driver of misclassification — because if the lease term is understated, the present value test and economic life test both fail to capture the full obligation, potentially flipping a lease from finance to operating classification and repricing the entire schedule.

What to consider when assessing renewal certainty:

• Significant leasehold improvements that would be abandoned if the space were vacated
• Location importance — a flagship retail site in a specific location cannot easily be replaced
• Historical pattern — has the company consistently renewed similar leases?
• Cost to relocate versus cost to renew
• Contractual provisions that create economic compulsion to renew

4. Separate the lease from the non-lease components

Real-world contracts bundle lease and service elements together. An office lease might include maintenance, security, cleaning, and building insurance. An equipment lease might include installation, maintenance, and operator services.

Under ASC 842, these non-lease components must be separated from the lease payments unless the lessee elects the practical expedient to combine them. Only the lease component gets capitalised into the ROU asset and lease liability. Service components are expensed as incurred.

The practical expedient to combine is available by asset class. Electing it simplifies implementation but means your ROU asset will be larger and your liability will be higher than if you separated. For leases with significant service elements, separation often produces a meaningfully smaller balance sheet impact.

5. Identify every payment that belongs in the lease liability

The lease liability is the present value of unpaid lease payments. Identifying those payments correctly is non-trivial.

Include:

• Fixed lease payments, net of lease incentives received
• In-substance fixed payments — variable in form but unavoidable in substance (e.g., a "variable" payment that only changes if the lessee triggers a specific action they would never take)
• Variable payments based on an index or rate (CPI, LIBOR/SOFR-linked escalation) — measured at commencement using the index/rate at that date
• Residual value guarantees to the extent probable of being required
• Purchase option price, if exercise is reasonably certain
• Termination penalties if the lease term reflects exercise of a termination option

Exclude:

• Pure usage-based variable payments (e.g., payments based on actual miles driven, actual machine hours used)
• Maintenance and service charges separated as non-lease components
• Contingent rent based on sales or performance

A common error: treating CPI-escalation clauses as pure variable payments and excluding them. They are variable based on an index — they are included in the initial measurement, using the CPI at commencement. The liability is then remeasured when the payments actually change.

6. The discount rate — the single input with the broadest reach

The discount rate determines the present value of all future lease payments and therefore the size of the lease liability and the ROU asset. A 1% difference in rate on a $5M lease over 10 years produces a six-figure difference in balance sheet impact.

The hierarchy under ASC 842:

1. Rate implicit in the lease — if this is readily determinable, it must be used. In practice, it is rarely determinable for lessees because it requires knowing the lessor's unguaranteed residual value assumption.
2. Incremental borrowing rate (IBR) — the rate the lessee would pay to borrow, on a collateralised basis, over a similar term, in a similar economic environment, an amount equal to the lease payments. This requires genuine analysis: the company's credit profile, the specific term, the collateral nature of the underlying asset, and current market rates for similar borrowings.
3. Risk-free rate (practical expedient for private companies) — simpler to calculate, but produces a higher lease liability because risk-free rates are lower than IBRs. Also carries a transition risk: if the company later goes public, converts to IFRS, or is acquired by a public company, retroactive IBR implementation can be expensive. The SEC has intensified reviews of IBR methodology in 2024–2025, and several public company restatements have resulted from unsupported IBR calculations.

The most common IBR error: using the unsecured borrowing rate (what the company would pay on an unsecured basis) instead of the collateralised rate (what it would pay if the loan were secured by the underlying asset). Collateralised rates are lower, producing a higher present value — and under ASC 842, that is the required basis.

7. Finance lease or operating lease — getting classification right

Under ASC 842, every lease is either a finance lease or an operating lease. The classification matters for income statement presentation: finance leases produce front-loaded expense (interest plus amortisation), while operating leases produce straight-line expense. Balance sheet treatment is identical — both are on the balance sheet.

A lease is classified as a finance lease if any one of these five criteria is met:

1. Ownership transfer — title transfers to the lessee by the end of the lease term.
2. Purchase option reasonably certain — the lease grants a purchase option and exercise is reasonably certain at commencement.
3. Major part of economic life — the lease term covers a major part of the asset's remaining economic life. While ASC 842 eliminated the old 75% bright line, 75% remains a common reference point in practice.
4. Substantially all fair value — the present value of lease payments equals or exceeds substantially all of the asset's fair value. The old 90% bright line was removed, but 90% remains the practical threshold most auditors apply.
5. Specialised asset — the underlying asset is so specialised that it has no expected alternative use to the lessor at the end of the lease.

If none of these criteria are met, it is an operating lease. The practical implication: most office and real estate leases classify as operating leases (they are generic assets with alternative uses and typically do not meet any of the five criteria). Most equipment leases for specialised machinery or long-lived assets are more likely to be finance leases.

8. Measuring the initial ROU asset

The ROU asset does not equal the lease liability. It consists of:

• The initial lease liability measurement
• Plus: any initial direct costs incurred (legal fees directly attributable to lease execution, not general overhead)
• Plus: any prepaid lease payments made at or before commencement
• Less: any lease incentives received (tenant improvement allowances, free rent periods, moving allowances)

Tenant improvement allowances (TIAs) are frequently handled incorrectly. If the landlord pays the TIA to the tenant, it reduces the ROU asset. If the landlord reimburses the tenant for improvements already made, it is also a reduction to the ROU asset. The leasehold improvement itself is a separate asset (PP&E) depreciated over the shorter of its useful life or the lease term.

9. Lease modifications — a frequently missed obligation

ASC 842 does not end at commencement. When lease terms change, the accounting must be updated. A lease modification is any change to contract terms that was not part of the original agreement — a rent increase, an extension negotiated mid-term, a reduction in leased space, an added floor.

Whether the modification is accounted for as a new separate lease or a remeasurement of the existing lease depends on whether the modification grants an additional right of use priced at its standalone price. If yes — new separate lease. If no — remeasure the existing liability using the discount rate at the modification date, and adjust the ROU asset accordingly.

Two practical traps:

• Leasehold improvement amortisation — when a modification extends the lease term, the amortisation period for existing leasehold improvements must be reassessed. If improvements had a 2-year remaining life and the term is extended by 4 years, the amortisation period extends to the 4-year remaining lease term (or useful life, if shorter).
• Updated discount rate — remeasurement generally requires using the rate at the modification date, not the original commencement date rate. In a higher-rate environment, this reduces the liability; in a lower-rate environment, it increases it.

10. ASC 842 vs. IFRS 16 — what changes for global businesses

If your business has operations across multiple jurisdictions — or if you are a US company preparing dual-reporting for foreign investors — the differences between ASC 842 and IFRS 16 matter in practice.

The biggest difference: lessee classification model. Under ASC 842, lessees classify every lease as either finance or operating, with different income statement treatment. Under IFRS 16, there is a single lessee model — all leases (except short-term and low-value) are treated as finance leases. Every IFRS lessee recognises depreciation and interest expense. The concept of a straight-line operating lease expense does not exist under IFRS 16.

The practical consequence: a 5-year office lease that qualifies as an operating lease under ASC 842 produces equal straight-line rent expense each year. The same lease under IFRS 16 produces higher expense in early years (front-loaded interest and depreciation) and lower expense in later years. EBITDA increases under IFRS 16 because lease expense moves below the EBITDA line (into interest and depreciation). Under ASC 842 operating lease treatment, the expense remains in operating expenses and reduces EBITDA.

Other differences that matter:

• Low-value exemption — IFRS 16 allows exclusion of leases where the underlying asset has an individual value below approximately $5,000 when new. ASC 842 has no equivalent bright-line exemption (though materiality thresholds still apply in practice).
• Sublease classification — under ASC 842, a sublessor classifies a sublease by reference to the underlying asset. Under IFRS 16, the sublessor classifies by reference to the ROU asset. This can produce different classifications for the same arrangement.
• Variable payments indexed to rate — under IFRS 16, subsequent changes to payments linked to an index or rate require remeasurement of the lease liability. Under ASC 842, remeasurement occurs only when lease payments are remeasured (e.g., when the lessee exercises an option or when a contingency is resolved).
• Risk-free rate practical expedient — available only under ASC 842 for private companies. No equivalent under IFRS 16.

For a US company with a UK or European subsidiary, the same lease portfolio will produce different balance sheet and income statement outcomes depending on which standard applies to each entity. Consolidating the two requires careful attention to these differences — they do not eliminate on consolidation, they need explicit adjustment.

The documentation you must maintain

ASC 842 is highly judgmental — lease term, IBR, classification, identification of components. Every judgment needs documentation that would withstand an auditor's scrutiny or a due diligence review two years later.

At minimum:

• IBR calculation with supporting market rate data, credit adjustment methodology, and term-matching rationale — dated at commencement
• Classification assessment for each lease documenting all five criteria and the conclusion
• Renewal/termination option analysis with the facts and judgments that support the "reasonably certain" conclusion (or not)
• Lease component separation analysis where the contract bundles services
• Present value calculation, including payment schedule and discount rate applied
• Evidence of lease modifications and remeasurement calculations at modification date

Auditors reviewing ASC 842 compliance in 2025 and 2026 focus heavily on documentation quality. A correct conclusion without documentation is an audit finding waiting to happen.

The mistakes that actually cause restatements

Based on current audit findings and the ASC 842 compliance landscape, the errors most likely to require material adjustments are:

1. Embedded leases not identified — a service contract that contains a lease is not assessed under ASC 842 at all. The ROU asset and liability are absent from the balance sheet.
2. Renewal options excluded from lease term — the lease term is understated, understating the liability, understating the present value for the classification test, and potentially misclassifying the lease.
3. Unsupported IBR — the rate is not documented, not specific to the lease term and collateral, or is the unsecured rate instead of the collateralised rate.
4. CPI escalation payments excluded — treated as pure variable payments when they are in-substance fixed and should be included using the current index at commencement.
5. Modifications not captured — rent holiday, lease extension, or space reduction negotiated mid-term but not reflected in the accounting.
6. Tenant improvement allowances not deducted from ROU asset — increases the ROU asset above its correct initial measurement.

---

Lease accounting under ASC 842 requires a different kind of attention than most accounting tasks. The standard is principles-based — it gives you the framework and requires you to apply judgment. The pre-accounting review is where that judgment is exercised. Get it right there and the accounting follows logically. Skip it and you are building on a foundation that will fail when it matters most — during an audit, a funding round, or an acquisition review.