Lease Accounting Under IFRS 16 Explained

IFRS 16 changed lease accounting more fundamentally than almost any recent standard, bringing onto the balance sheet a vast population of leases that had previously been kept off it. Before IFRS 16, lessees distinguished between finance leases, which appeared on the balance sheet, and operating leases, which did not — meaning that significant lease commitments, for property, vehicles, equipment and more, sat off balance sheet, visible only in the notes. IFRS 16 largely removed this distinction for lessees, requiring most leases to be recognised on the balance sheet as a right-of-use asset and a corresponding lease liability. For the financial accountant, understanding IFRS 16 and applying it correctly is essential, because leases are common, the standard’s effect is significant, and the application involves judgement and calculation that must be done properly.

This guide is written for financial accountants who need a practical understanding of lease accounting under IFRS 16. It covers what the standard changed and why, the core model it applies, how to identify a lease and account for it, the key judgements and practical challenges, and the areas where lease accounting commonly causes difficulty. It is a practical orientation rather than an exhaustive technical treatment, for which the standard itself is the reference. The aim is the working understanding a financial accountant needs to apply IFRS 16 soundly, which has become a routine but technically demanding part of financial reporting since the standard took effect.

What IFRS 16 Changed and Why

The fundamental change IFRS 16 made was to bring most leases onto the lessee’s balance sheet. Under the previous approach, the operating-lease classification allowed lessees to keep many leases off balance sheet, recognising only the lease payments as an expense as they were incurred, with the lease commitment disclosed in the notes rather than recognised as a liability. This meant that a business with significant operating leases — a retailer with many leased stores, a business with a large leased vehicle fleet — carried substantial obligations that did not appear on its balance sheet, which was widely seen as understating the leverage and the assets employed in such businesses.

IFRS 16 addressed this by requiring lessees to recognise, for most leases, a right-of-use asset representing their right to use the leased item and a lease liability representing their obligation to make the lease payments. This brings the leases onto the balance sheet, increasing both the assets and the liabilities recognised, and changing the pattern of expense recognition in the income statement. The rationale was that a lease, whatever its label, gives the lessee an asset (the right to use something) and a liability (the obligation to pay for it), and the accounts should reflect this rather than leaving significant leases off balance sheet. Understanding this rationale — that IFRS 16 recognises the economic substance of leases as creating assets and liabilities — helps the financial accountant apply the standard sensibly, and it explains why the change was considered an important improvement in financial reporting despite the practical work it created.

The Core Model

The core of lessee accounting under IFRS 16 is the recognition of the right-of-use asset and the lease liability at the commencement of the lease, and their subsequent treatment over the lease term. The lease liability is measured initially at the present value of the future lease payments, discounted at the rate implicit in the lease or, where that is not readily determinable, the lessee’s incremental borrowing rate. The right-of-use asset is measured initially at the amount of the lease liability, adjusted for certain items such as initial direct costs and payments made at or before commencement. This initial recognition puts the lease onto the balance sheet at commencement.

Over the lease term, the lease liability is treated like a financial liability: it accrues interest, which is recognised as a finance cost, and it is reduced by the lease payments made. The right-of-use asset is depreciated over the lease term, like other non-current assets, with the depreciation recognised as an expense. This means the income statement shows depreciation of the asset and interest on the liability, rather than the single lease expense of the old operating-lease approach — a different pattern, typically front-loading the total expense because the interest is higher in the early years when the liability is larger. The financial accountant must understand this model — the initial measurement of the asset and liability, and their subsequent treatment through depreciation and interest — because applying it correctly requires the calculation and the accounting to be done properly at commencement and through the life of the lease.

Identifying a Lease and Applying the Standard

A foundational step in applying IFRS 16 is identifying whether an arrangement actually contains a lease, because the standard applies to leases and the definition determines what is caught. IFRS 16 defines a lease in terms of the right to control the use of an identified asset for a period in exchange for consideration, and applying this definition requires judgement, particularly for arrangements that involve the use of assets but may or may not meet the definition — certain service and supply arrangements, for example. The financial accountant must assess the business’s arrangements to identify which contain leases within the meaning of the standard, because getting this wrong either brings non-leases onto the balance sheet or leaves genuine leases off it.

Once a lease is identified, applying the standard requires determining the lease term, the lease payments, and the discount rate, each of which can involve judgement. The lease term must take account of options to extend or terminate, where it is reasonably certain these will or will not be exercised, which is a judgement that affects the measurement. The discount rate, where the implicit rate is not available, requires determining the incremental borrowing rate, which is itself a judgement. IFRS 16 also provides exemptions for short-term leases and leases of low-value assets, which the financial accountant may apply to avoid bringing minor leases onto the balance sheet. Applying the standard correctly requires working through these elements — identifying the lease, determining the term, the payments and the rate, and considering the exemptions — for each lease, which is a substantial exercise for a business with many leases.

The Key Judgements and Practical Challenges

IFRS 16 involves judgement and practical challenge that the financial accountant must manage. The determination of the lease term, including the treatment of extension and termination options, is one of the more significant judgements, because it affects the measurement of both the asset and the liability and because the assessment of whether options are reasonably certain to be exercised requires judgement about future intentions. The determination of the discount rate is another, particularly the incremental borrowing rate where the implicit rate is unavailable, which requires establishing an appropriate rate that can materially affect the measurement.

The practical challenges are considerable, especially for businesses with many leases. Identifying and gathering the data on all the leases — the terms, the payments, the options — is a substantial exercise, particularly at transition when the whole lease population had to be brought onto the balance sheet. Maintaining the accounting over time, as leases commence, end, and are modified, requires ongoing effort and often a system to track the population, because manual tracking of many leases is error-prone. Lease modifications, which are common, have specific accounting requirements that must be applied when terms change. The financial accountant who manages these judgements and challenges — the lease term, the discount rate, the data, the ongoing maintenance, the modifications — applies IFRS 16 soundly; the one who underestimates the practical demands may struggle to maintain accurate lease accounting, particularly where the lease population is large. The practical management of lease accounting is as much a part of applying IFRS 16 as the technical understanding of the model.

Where Lease Accounting Causes Difficulty

Lease accounting under IFRS 16 causes recurring difficulty in identifiable areas, and awareness of these helps the financial accountant apply the standard well. The identification of leases within arrangements that are not obviously leases — embedded leases within service or supply contracts — is a common area of difficulty, because these can be missed, leaving genuine leases unaccounted for. The judgement on lease term, particularly where there are options, is another area where difficulty and error arise, because the assessment of whether options are reasonably certain to be exercised is genuinely judgemental and affects the numbers materially.

The handling of lease modifications is a frequent source of difficulty, because modifications are common and their accounting is specific and sometimes complex, requiring remeasurement that is easy to get wrong. The ongoing maintenance of accurate lease accounting across a changing population of leases is a practical challenge that, if not managed well with appropriate systems and processes, leads to errors accumulating. And the interaction of IFRS 16 with the previous treatment, and with UK GAAP where a group spans frameworks, can cause confusion, because FRS 102 has retained the operating-finance lease distinction that IFRS 16 removed, so leases may be treated differently in different parts of a group — a difference discussed in our guide on IFRS versus UK GAAP in practice. The financial accountant who is aware of these difficulties — embedded leases, lease term judgement, modifications, ongoing maintenance, framework differences — can apply IFRS 16 carefully and avoid the errors that catch out those who treat it as a simple mechanical exercise. Lease accounting since IFRS 16 is technically demanding and practically substantial, and applying it well is part of the technical competence the financial accountant role requires.

The Impact on the Financial Statements and Metrics

A consequence of IFRS 16 that the financial accountant should understand and be able to explain is its effect on the financial statements and the metrics derived from them, because bringing leases onto the balance sheet changes the picture the accounts present. The recognition of the right-of-use assets and lease liabilities increases both the assets and the liabilities on the balance sheet, which affects measures of leverage and the assets employed. The replacement of the single operating-lease expense with depreciation and interest changes the profile of the income statement, typically increasing operating profit (because the lease cost is now partly below the operating line as interest) while front-loading the total expense over the lease term.

These effects matter because they change the metrics that users and the business itself rely on — leverage ratios, profit measures, and the financial covenants and performance indicators built on them. A financial accountant should understand how IFRS 16 affects these metrics and be able to explain the changes, particularly where they affect covenant calculations or the comparison of performance across periods or with entities reporting differently. The transition to IFRS 16 in particular changed the reported numbers in ways that required explanation, and the ongoing effect continues to shape how the leased business appears in its accounts. The financial accountant who understands and can articulate these impacts provides valuable clarity, helping the business and its stakeholders interpret the accounts correctly in light of how lease accounting shapes them, which is part of the rounded understanding of the standard that the role requires.

Systems and Ongoing Lease Management

For any business with more than a handful of leases, the practical management of lease accounting under IFRS 16 depends significantly on having appropriate systems and processes, and the financial accountant should ensure these are in place. Tracking a population of leases — their terms, payments, options, the right-of-use assets and liabilities, the depreciation and interest, and the modifications — manually in spreadsheets becomes error-prone and unwieldy as the number of leases grows, and many businesses use dedicated lease accounting software to manage the population reliably. The financial accountant responsible for lease accounting should assess whether the business’s systems are adequate to the lease population, because inadequate systems are a common source of error and inefficiency in ongoing lease accounting.

Beyond the systems, the ongoing management of lease accounting requires processes to capture new leases as they commence, to account for modifications and terminations as they occur, and to maintain the accounting accurately over time. A lease population is not static — leases begin, end, and change — and keeping the accounting current as the population changes requires a deliberate process rather than periodic catch-up. The financial accountant who establishes good systems and processes for lease accounting maintains accurate lease accounting reliably; one who relies on inadequate systems and ad-hoc processes faces accumulating error, particularly as the lease population grows or changes. This practical, systematic management of the lease population is as important to applying IFRS 16 well as the technical understanding of the model, and it is part of what the financial accountant responsible for leases must put in place.