ASC 842 is the US GAAP lease accounting standard that superseded ASC 840 and became effective for public companies in 2019 and private companies in 2022. Like IFRS 16, it moved operating leases onto the lessee's balance sheet by requiring recognition of a right-of-use asset and a lease liability.
Unlike IFRS 16, however, ASC 842 preserved the historical distinction between finance leases (formerly capital leases) and operating leases, creating a dual-model approach that has significant income statement implications. Understanding which side of the finance/operating line a given lease falls on is the single most important classification decision under the standard.
Classification as a finance lease occurs if any one of five criteria is met: the lease transfers ownership of the asset to the lessee at the end of the term, contains a purchase option the lessee is reasonably certain to exercise, covers a major part of the asset's remaining economic life (often interpreted as 75% or more), has present value of payments equal to substantially all of the fair value (often interpreted as 90% or more), or involves an asset so specialized it has no alternative use to the lessor at lease end. If none of the five criteria are met, the lease is an operating lease.
For most commercial real estate tenants, long-term leases of generic office, retail, and industrial space almost always land in the operating category.
The accounting then diverges. For a finance lease, the lessee recognizes interest on the liability and amortization of the right-of-use asset separately, producing the same front-loaded expense pattern as IFRS 16.
For an operating lease, ASC 842 requires total lease expense to be recognized on a straight-line basis, even though the balance sheet still carries both an asset and a liability. The mechanism is subtle: interest on the liability is calculated the usual way, and the right-of-use asset amortization is then plugged to make total expense straight-line.
The result is an operating lease that looks familiar from an income statement perspective but introduces a new set of balance sheet line items that affect leverage ratios and covenants.
Practical implementation of ASC 842 has required careful attention to lease term determination, discount rate selection (private companies may elect to use the risk-free rate), identification of embedded leases within service contracts, and the treatment of modifications and reassessments. The standard also requires substantial disclosures, including a maturity analysis, weighted-average remaining lease term, and weighted-average discount rate.
For commercial real estate landlords, ASC 842 is primarily a tenant concern; lessor accounting under the standard is largely unchanged from ASC 840. Landlords should still understand how their tenants' financial reporting has shifted because it affects covenants, disclosures, and how tenants think about lease structures in negotiation.
Under the old ASC 840, operating leases were disclosed in the footnotes but stayed off the balance sheet. ASC 842 ends that: for essentially every lease longer than 12 months, the lessee now records a right-of-use asset representing its right to use the asset and a lease liability equal to the present value of the remaining lease payments.
For a company with a large commercial real estate footprint, this materially increased reported assets and liabilities and changed leverage ratios, even though the underlying economics of the leases did not change. Lessor accounting, by contrast, is largely unchanged from ASC 840, so the standard is primarily a tenant-side concern.
Classification turns on the five criteria. A finance lease (formerly a capital lease) recognizes interest on the liability and amortization of the right-of-use asset separately, so total expense is highest early and declines, the same front-loaded pattern as IFRS 16.
An operating lease under ASC 842 still carries both an asset and a liability on the balance sheet, but the income statement shows a single straight-line lease expense: interest is computed normally and the right-of-use asset amortization is plugged so the combined total is level across the term. Most generic office, retail, and industrial leases fall on the operating side.
ASC 842 is a financial-reporting standard, not a tax rule. US federal tax continues to follow its own lease-characterization rules, and for a typical true tax lease the tenant simply deducts rent as paid.
Because the book right-of-use asset and lease liability generally have little or no corresponding tax basis, they create temporary differences between book and taxable income. Those differences give rise to deferred tax assets and liabilities that largely offset at inception but must be measured and tracked over the lease term, a common implementation workstream when adopting the standard.
ASC 842 is the FASB (US GAAP) lease accounting standard, also called Topic 842, that superseded ASC 840. It requires lessees to record a right-of-use asset and a lease liability on the balance sheet for most leases while preserving the distinction between finance and operating leases.
ASC 842 became effective for public business entities for fiscal years beginning after December 15, 2018 (calendar 2019) and for private companies for fiscal years beginning after December 15, 2021 (calendar 2022).
A lessee can elect not to capitalize a lease with a term of 12 months or less that does not include a purchase option the lessee is reasonably certain to exercise. Those short-term leases stay off the balance sheet and are expensed on a straight-line basis, similar to the old operating-lease treatment.
For real estate tenants, most long-term office, retail, and industrial leases meet none of the five finance-lease criteria, so they are operating leases: they go on the balance sheet as a right-of-use asset and lease liability but keep a single straight-line lease expense. Landlord (lessor) accounting is largely unchanged.
ASC 842 changes book GAAP only; US tax law does not adopt it, and a typical true tax lease still deducts rent as paid. Because the book right-of-use asset and lease liability usually have no matching tax basis, they create temporary book-tax differences that generate deferred tax assets and liabilities the company must track over the lease term.
ASC 840 kept operating leases off the balance sheet in the footnotes; ASC 842 brings them on-balance-sheet as a right-of-use asset and lease liability. ASC 842 also renames capital leases as finance leases and refines the classification and disclosure requirements, but it keeps the underlying dual (finance vs operating) model.
Both put most leases on the balance sheet as a right-of-use asset and a lease liability, but ASC 842 keeps a dual model: finance leases are front-loaded with separate interest and amortization, while operating leases keep a single straight-line lease expense. IFRS 16 uses a single lessee model where nearly every lease is front-loaded, so the same property lease can show a different expense pattern and EBITDA under US GAAP versus IFRS.