Introduction
IFRS 16 has been in effect since 1 January 2019, yet lease accounting errors remain among the most common findings in financial statement audits across Europe. The European Securities and Markets Authority (ESMA) has flagged lease accounting as a recurring enforcement priority every year since adoption, and national regulators from the FMA in Austria to the AMF in France continue to identify material misstatements in listed company filings.
The standard itself is not ambiguous — its requirements are detailed and prescriptive. The errors arise from implementation gaps: incomplete data, manual processes, inconsistent judgements, and a lack of ongoing monitoring. For companies managing lease portfolios across multiple jurisdictions, currencies, and asset classes, the operational complexity creates persistent risk.
This article identifies the ten most common IFRS 16 errors based on regulatory enforcement actions, audit findings, and industry surveys. For each error, we explain what goes wrong, why it happens, the financial impact, and the specific steps to prevent it.
Error 1: Incomplete Lease Population
The most fundamental IFRS 16 error is failing to identify all contracts that contain a lease. Studies by the major audit firms consistently find that 15–20% of lease contracts are missed during initial identification, and the problem persists well beyond the transition period.
Why It Happens
Lease contracts are often scattered across departments. Property leases sit with facilities management, vehicle leases with fleet operations, IT equipment leases with the technology team, and embedded leases within procurement contracts that no one classifies as leases at all. Without a centralised contract register and a systematic identification process, contracts fall through the gaps.
The problem is compounded in organisations that have grown through acquisitions, where legacy contracts may be stored in different systems, formats, or even physical filing cabinets across multiple countries.
Financial Impact
Every missed lease results in an understatement of both total assets (missing ROU asset) and total liabilities (missing lease liability). For a mid-market European company with 80–150 leases, missing 15% of the portfolio could mean understating lease liabilities by EUR 2–5 million — enough to trigger a material misstatement finding.
How to Prevent It
Conduct an annual completeness review that goes beyond the lease register. Query accounts payable for recurring payments to landlords, lessors, and equipment providers. Review procurement contracts for embedded lease components. Require all new contracts above a materiality threshold to be assessed for IFRS 16 applicability before execution.
Error 2: Incorrect Incremental Borrowing Rate
The incremental borrowing rate (IBR) is the rate that the lessee would have to pay to borrow, over a similar term and with similar security, the funds necessary to obtain an asset of similar value to the right-of-use asset in a similar economic environment. Getting this wrong is the second most common IFRS 16 error, and the one with the most directly quantifiable financial impact.
Why It Happens
Many companies apply a single entity-wide borrowing rate to all leases, regardless of lease term, currency, jurisdiction, or the nature of the underlying asset. Others use the rate on their revolving credit facility without adjusting for the specific characteristics of each lease. Some fail to update rates when new leases commence or when lease terms change.
The IBR requires lease-specific adjustments. A 3-year equipment lease in Germany requires a different rate than a 15-year property lease in Spain, even within the same corporate group. The term structure, currency, country risk, and collateral all differ.
Financial Impact
A 1 percentage point error in the discount rate applied to a 10-year lease changes the present value of lease payments by approximately 5–8%. For a company with EUR 50 million in total undiscounted lease commitments, this translates to a potential misstatement of EUR 2.5–4 million on the balance sheet, with corresponding errors in interest expense and depreciation over the lease term.
How to Prevent It
Build a documented IBR methodology that accounts for lease term, currency, jurisdiction, and asset type. For a step-by-step walkthrough of how the discount rate feeds into the liability calculation, see our guide on how to calculate IFRS 16 lease liability. Use observable market data as a starting point — government bond yields for the risk-free rate, then apply entity-specific credit spread adjustments. Update rates at each lease commencement date or remeasurement event. Document the methodology and key assumptions for audit trail purposes.
Error 3: Ignoring Lease Modifications
IFRS 16 requires specific accounting treatment when a lease is modified — that is, when the scope or consideration of a lease changes beyond the original terms. In practice, lease modifications are frequent: rent reviews, space expansions or reductions, term extensions, and renegotiated payment terms. Many companies fail to account for these modifications correctly, or at all.
Why It Happens
The operational challenge is detection. Lease modifications may be agreed informally between a local facility manager and a landlord, documented in a side letter that never reaches the finance team, or buried in an amendment to a broader service agreement. Without a process that routes all lease changes through finance, modifications go unrecorded.
Even when detected, the accounting treatment is complex. IFRS 16 distinguishes between modifications that are treated as a separate lease (when additional right-of-use is granted at a commensurate price) and modifications that require remeasurement of the existing lease. Applying the wrong treatment produces materially different results.
Financial Impact
Unrecorded lease modifications accumulate over time. A company with 100 property leases across Europe will typically experience 10–20 modifications per year from rent reviews, expansions, and renegotiations. Over three years, the cumulative effect of unrecorded modifications can distort lease liabilities by 5–12%.
How to Prevent It
Establish a lease modification protocol: any change to a lease contract — regardless of how minor it appears — must be reported to finance within a defined timeframe. Classify each modification as either a separate lease or a remeasurement event using a documented decision tree. Remeasure the lease liability using a revised discount rate at the modification date.
Error 4: Incorrect Lease Term Assessment
The lease term under IFRS 16 is the non-cancellable period together with periods covered by extension options the lessee is reasonably certain to exercise and termination options the lessee is reasonably certain not to exercise. Assessing "reasonably certain" is a judgement that companies frequently get wrong.
Why It Happens
The most common mistake is defaulting to the contractual minimum term without properly assessing extension and termination options. Many European commercial property leases include break clauses (common in the UK, Netherlands, and Germany) or renewal options (standard in France and Southern Europe). Ignoring these options when the lessee is reasonably certain to exercise them understates the lease term and, consequently, the lease liability.
The opposite error also occurs: including optional periods without sufficient evidence that exercise is reasonably certain, overstating the lease liability.
Financial Impact
Lease term drives both the lease liability and the ROU asset. Understating the term of a property lease by five years on a EUR 200,000 annual rent could understate the lease liability by approximately EUR 800,000–900,000. Across a portfolio, these errors compound significantly.
ESMA has specifically flagged lease term assessment as an area where companies provide insufficient disclosure of the judgements applied, the factors considered, and the sensitivity of the carrying amounts to changes in those judgements.
How to Prevent It
Document the factors considered for each significant lease: economic incentives to extend (leasehold improvements, relocation costs, strategic importance of the location), penalties for termination, and the entity's historical practice with similar leases. Reassess lease terms at each reporting date when a significant event or change in circumstances occurs — such as a major leasehold improvement, a change in business strategy, or the approach of an option exercise date.
Error 5: Missing Variable Lease Payments
IFRS 16 draws a critical distinction between variable payments that depend on an index or rate (included in the lease liability) and variable payments that depend on performance or usage (excluded from the lease liability and expensed as incurred). Misclassifying variable payments is a persistent source of error.
Why It Happens
European commercial leases frequently include complex payment structures: CPI-linked rent escalations, turnover-based rent in retail, service charge adjustments, and stepped rent increases. The classification depends on the specific drafting of each lease clause. A payment that increases by CPI annually is index-linked and must be included. A payment that is 5% of the tenant's revenue is performance-based and is excluded. A payment that is the higher of a fixed minimum and 3% of turnover has both components and must be disaggregated.
Many companies either include all variable payments (overstating the liability) or exclude all variable payments (understating it), rather than analysing each clause individually.
Financial Impact
In retail-heavy portfolios where turnover rents are common, the error can be significant in both directions. Including turnover-based variable payments that should be excluded overstates lease liabilities. Excluding CPI-linked escalations that should be included understates them. For a portfolio with EUR 30 million in annual lease payments, where 20% includes variable components, the misstatement can reach EUR 1–3 million.
How to Prevent It
Review each lease contract clause by clause to identify and classify variable payment provisions. Create a taxonomy: index-linked (CPI, RPI, HICP — include in liability), rate-linked (EURIBOR — include), performance-based (turnover rent — exclude), usage-based (per-unit charges — exclude). Document the classification for each lease.
Error 6: Wrong Transition Approach
Although the IFRS 16 transition occurred in 2019, errors from the initial transition continue to flow through financial statements because the ROU assets and lease liabilities established at transition form the basis for all subsequent measurement. Companies that applied the transition provisions incorrectly carry that error forward indefinitely.
Why It Happens
IFRS 16 offered two transition approaches: full retrospective (restating comparatives as if IFRS 16 had always applied) and modified retrospective (recognising the cumulative effect at the transition date without restating comparatives). The modified retrospective approach itself offered multiple practical expedients — such as using hindsight to determine lease terms, applying a single discount rate to portfolios of similar leases, and excluding initial direct costs from ROU asset measurement.
Companies that applied the practical expedients inconsistently, or that mixed elements of different approaches, created errors that are embedded in their opening balances.
Financial Impact
Transition errors affect the opening balance of ROU assets and lease liabilities, which in turn affect every subsequent period's depreciation and interest expense. A 10% error in the transition balance of a EUR 20 million lease portfolio produces cumulative profit and loss misstatements that grow with each reporting period.
How to Prevent It
If transition errors are identified retrospectively, assess whether they are material individually or in aggregate. Material errors require correction under IAS 8 — either through restatement of comparative periods or through prospective correction with disclosure. Conduct a retrospective review of transition calculations against the specific practical expedients elected and documented at the time.
Error 7: Inadequate IFRS 16 Disclosures
Disclosure deficiencies are the most frequently cited IFRS 16 finding in ESMA enforcement reviews. In a 2022 ESMA report on IFRS 16 enforcement, 42% of reviewed companies had disclosure-related findings, ranging from missing quantitative information to insufficient explanation of significant judgements.
Why It Happens
IFRS 16 requires extensive disclosures: maturity analysis of lease liabilities, expense breakdowns (depreciation, interest, short-term lease expense, low-value lease expense, variable lease expense), information about extension and termination options, and qualitative descriptions of the entity's leasing activities. Many companies treat disclosures as an afterthought — populated at the last minute from incomplete data, rather than built systematically from the lease accounting system.
The qualitative disclosures are particularly problematic. IFRS 16.59 requires entities to disclose the nature of their leasing activities and any restrictions or covenants imposed by lease arrangements. IFRS 16.B49 requires disclosure of the entity's strategy for managing its portfolio of lease options and the potential future cash outflows not reflected in the lease liability. Many companies provide only boilerplate text that fails to convey entity-specific information.
Financial Impact
While disclosure deficiencies do not directly misstate recognised amounts, they carry regulatory consequences. ESMA enforcement actions result in required corrections to future filings, public identification of the entity, and in some cases, referral to national regulators for further action. The reputational cost and remediation burden are significant. Repeated disclosure failures can also signal to auditors that the overall lease accounting process is insufficiently robust, triggering expanded audit procedures and increased audit fees.
How to Prevent It
Build disclosure templates directly into the lease accounting process, not as an end-of-period add-on. Ensure the lease system generates the quantitative data needed for disclosures automatically — maturity analysis, expense breakdowns, and reconciliation of opening to closing lease liability balances. Draft entity-specific qualitative disclosures that describe actual leasing arrangements, judgements applied, and the entity's exposure to variable payments and option exercise decisions.
Error 8: Embedded Leases Missed
An embedded lease exists when a contract that is not formally a lease nevertheless conveys the right to control the use of an identified asset for a period of time in exchange for consideration. IFRS 16.B9–B31 provides detailed guidance on identifying lease components within broader contracts. Despite this, embedded leases remain one of the most consistently overlooked areas.
Why It Happens
Procurement teams negotiate and execute contracts for services, not leases. A logistics contract for dedicated warehouse space, a managed IT services agreement with specified server infrastructure, or a contract manufacturing arrangement with dedicated production equipment may all contain embedded leases. These contracts are typically classified as service agreements in the procurement system and never routed through the lease identification process.
The assessment itself is nuanced. The key question is whether the customer controls the use of an identified asset — meaning the customer has the right to direct the use of the asset and obtain substantially all of the economic benefits from its use throughout the period. Contracts where the supplier can substitute the asset without the customer's approval generally do not contain a lease. Contracts where specific assets are identified and dedicated to the customer generally do.
Financial Impact
The materiality depends on the industry and operating model. Logistics companies, retailers with third-party distribution centres, and technology companies with co-location agreements are particularly exposed. A single embedded lease in a EUR 5 million annual logistics contract with a dedicated warehouse could result in a lease liability of EUR 15–20 million if the contract runs for 5–7 years.
How to Prevent It
Implement a contract screening process for all new service agreements above a materiality threshold. The screening should assess three criteria: Is there an identified asset? Does the customer control the use of that asset? Is the period of use defined? If all three are met, the contract likely contains a lease component that must be separated and accounted for under IFRS 16.
Error 9: Non-Lease Components Not Separated
IFRS 16 requires lessees to separate lease components from non-lease components in a contract and allocate the consideration accordingly. Non-lease components — such as maintenance, cleaning, security, and property management services bundled into a commercial property lease — should not be included in the lease liability measurement unless the entity elects the practical expedient to account for the entire contract as a single lease.
Why It Happens
Many companies either fail to separate non-lease components entirely (including everything in the lease liability, which overstates it) or elect the practical expedient without understanding its implications. The practical expedient in IFRS 16.15 allows entities to account for lease and non-lease components together as a single lease, but this must be elected as an accounting policy by class of underlying asset — it cannot be applied selectively to individual leases.
In European commercial property leases, service charges can represent 10–30% of total payments. German commercial leases (Gewerbemietvertrag) typically include Nebenkosten (ancillary costs) covering property tax, insurance, maintenance, and building management. French baux commerciaux often include charges de copropriete. Including these amounts in the lease liability without separation or an explicit policy election is an error.
Financial Impact
For a property-heavy company with EUR 40 million in annual lease payments, where 20% represents service charges and non-lease components, failure to separate (absent the practical expedient election) overstates lease liabilities by approximately EUR 6–8 million in present value terms. This affects gearing ratios, interest cover, and any covenants tied to balance sheet leverage.
Conversely, if the entity has elected the practical expedient, it should be applied consistently to all leases of that asset class. Cherry-picking — separating non-lease components where it reduces the liability and not separating where it would increase the liability — is an error in accounting policy application.
How to Prevent It
Make an explicit, documented accounting policy decision on non-lease component separation for each class of underlying asset (property, vehicles, equipment, IT). If separation is elected, analyse each lease to identify and allocate consideration to non-lease components using observable standalone prices or, where these are not available, estimation techniques. If the practical expedient is elected, apply it consistently and disclose the election.
Error 10: CPI Reassessment Timing Errors
For leases with payments linked to a consumer price index (CPI, HICP, RPI, or other national indices), IFRS 16 requires remeasurement of the lease liability when the cash flows change. The timing of this remeasurement — and the discount rate used — is a source of frequent error.
Why It Happens
The standard requires remeasurement when there is a change in the cash flows. For CPI-linked leases, this occurs at the point when the adjustment takes effect — typically on the rent review date specified in the lease contract, not at the reporting date. Many companies remeasure all CPI-linked leases at year-end using the latest available index, rather than at the contractual adjustment date.
The discount rate question adds complexity. When remeasuring for index-linked changes, the entity uses the original discount rate (the IBR at lease commencement or last modification). This differs from lease modifications, where a revised discount rate is used. Applying the wrong rate — typically the current rate rather than the original rate — introduces a second layer of error.
Financial Impact
In a high-inflation environment, the impact is material. Between 2022 and 2025, eurozone HICP increased by approximately 15% cumulatively. For a company with EUR 20 million in CPI-linked lease liabilities, applying the wrong reassessment timing or the wrong discount rate could misstate the liability by EUR 500,000–1.5 million, with corresponding errors in interest expense.
How to Prevent It
Maintain a calendar of contractual CPI adjustment dates for every lease with index-linked payments. Remeasure the lease liability at each adjustment date using the actual index applicable at that date and the original discount rate from lease commencement. Do not batch CPI remeasurements to the reporting date unless the contractual adjustment date coincides with it. Automate the tracking of adjustment dates and index values to prevent manual errors.
Building a Systematic Approach to IFRS 16 Compliance
The ten errors described above share a common root cause: reliance on manual, fragmented processes for tasks that require systematic data management, consistent methodology, and ongoing monitoring. Our commercial lease audit checklist provides a structured approach to catching these errors before they reach auditors. Lease accounting under IFRS 16 is not a one-time transition exercise — it is a continuous compliance obligation that touches every reporting period.
The companies that avoid these errors consistently share several characteristics:
Centralised lease data. All lease contracts, amendments, and supporting documentation are maintained in a single system of record, accessible to finance, operations, and audit teams.
Documented methodology. IBR determination, lease term assessment, non-lease component separation, and other judgement areas are governed by written policies that are applied consistently and reviewed periodically.
Event-driven processes. Lease modifications, CPI adjustments, option exercise dates, and other trigger events are tracked proactively, not discovered retrospectively during period-end close.
Automated calculations. Lease liability amortisation, ROU asset depreciation, remeasurement, and disclosure data are generated systematically rather than built manually in spreadsheets.
For organisations managing lease portfolios across multiple European jurisdictions, LeaseIQ provides the infrastructure for this systematic approach — from AI-powered extraction of lease terms across five languages to automated IFRS 16 calculations and disclosure-ready reporting.
Conclusion
IFRS 16 compliance errors are remarkably persistent, even seven years after the standard took effect. The ten errors outlined in this article — from incomplete lease identification to CPI reassessment timing — account for the vast majority of audit findings and regulatory enforcement actions related to lease accounting.
The financial consequences are real: material misstatements, qualified audit opinions, covenant breaches, and regulatory scrutiny. But these errors are preventable. They require not deeper accounting expertise, but better data, better processes, and better tools.
Companies that invest in systematic lease data management, documented methodologies, and automated calculations find that IFRS 16 compliance becomes a routine operational process rather than a source of recurring risk. The standard is demanding, but it is knowable — and the errors it produces are, with the right approach, entirely avoidable.