This free, guided checker walks your finance team through the key decision points for IFRS 16 Lease Discount Rate. Answer a few questions to see the likely treatment and the evidence to document.
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This tool is a high-level IFRS screening aid for general information only and is not accounting, audit or legal advice. Conclusions require entity-specific evidence and judgement - confirm the treatment with your advisor.
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IFRS 16.5 lets a lessee elect not to recognise short-term leases (a term of 12 months or less with no purchase option) and leases of low-value assets; elected leases are expensed straight-line or on another systematic basis (IFRS 16.6). The short-term election is made by class of underlying asset and the low-value election lease by lease (IFRS 16.8). All other lessee leases require a discount rate at the commencement date under IFRS 16.26.
Recognition exemption elected; expense lease payments on a straight-line or other systematic basis with no discount rate required (IFRS 16.5-6).
Official guidance: IFRS issued standards
IFRS 16.26 requires the rate implicit in the lease when that rate can be readily determined and the lessee's incremental borrowing rate otherwise. The implicit rate is generally readily determinable for vehicle and equipment leases; property leases often require IBR because lessor costs are not observable. Readily determinable means the Appendix A inputs - asset fair value, lessor initial direct costs, and the unguaranteed residual value - are known without estimation, so do not reverse-engineer a rate from incomplete lessor data.
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Official guidance: IFRS issued standards
The interest rate implicit in the lease is the rate that causes the present value of the lease payments and the unguaranteed residual value to equal the fair value of the underlying asset plus the lessor initial direct costs (IFRS 16 Appendix A). Because the definition embeds lessor inputs, a lessee can rarely derive it precisely; do not force an implicit rate from incomplete data. If any input is estimated rather than known, conclude the rate is not readily determinable and move to the incremental borrowing rate.
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Official guidance: IFRS issued standards
The implicit rate embeds the lessor initial direct costs and residual value assumptions, which lessors rarely disclose. Request pricing information for material leases, but do not substitute guesses for missing lessor data. When any required input is unobservable, IFRS 16.26 directs the lessee to the incremental borrowing rate rather than to an approximated implicit rate.
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Official guidance: IFRS issued standards
The incremental borrowing rate is defined in IFRS 16 Appendix A as the rate the lessee would 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. Build it from an observable base curve matched to the lease term and currency, plus a lessee-specific credit spread and a security adjustment. Common traps are using the parent rate without a subsidiary credit adjustment and matching the rate to the asset life instead of the lease term.
Document the incremental borrowing rate methodology and inputs before initial recognition of the lease liability (IFRS 16.26).
Official guidance: IFRS issued standards
IFRS 16.B1 permits applying the standard to a portfolio of leases with similar characteristics if the entity reasonably expects the effect not to differ materially from applying it lease by lease. Rate portfolios are typically banded by lease term, currency, commencement window, and obligor credit profile. Revisit the banding when interest rates move quickly, because wide commencement windows can make a single portfolio rate unrepresentative.
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Official guidance: IFRS issued standards
Portfolio rates should not mask materially different credit profiles or lease terms within the group. Test the expedient by sampling leases within each band and comparing the portfolio rate to a lease-specific incremental borrowing rate, documenting the tolerance applied. Rebuild the bands when new asset classes, currencies, or entities with different credit standing enter the portfolio (IFRS 16.B1).
Refine the portfolio bands so grouped leases have reasonably similar characteristics before applying a single rate (IFRS 16.B1).
Official guidance: IFRS issued standards
IFRS 16 prescribes different rates by event: reassessments of the lease term or a purchase option discount the revised payments at a revised rate (IFRS 16.40); changes in residual value guarantees or in an index or rate use the unchanged rate, except that a change in floating interest rates triggers a revised rate for that element (IFRS 16.42-43); and modifications not accounted for as separate leases use a revised rate at the modification effective date (IFRS 16.45(c)). Applying the original rate to a term reassessment is a common error that misstates the remeasured liability.
Apply the correct revised-rate or unchanged-rate rule for each remeasurement or modification event (IFRS 16.40; IFRS 16.42-43; IFRS 16.45).
Official guidance: IFRS issued standards
Retain the base yield curve, credit spread evidence, security and asset-quality adjustments, and the linkage to the lease term and currency for each rate, dated as of commencement or the remeasurement event (IFRS 16.26). Approval by treasury or the controller should be evidenced before the liability is first posted. Auditors commonly challenge rates supported only by after-the-fact documentation or by a single undated corporate borrowing rate.
Complete the rate documentation and obtain treasury or finance approval before posting the lease liability (IFRS 16.26).
Official guidance: IFRS issued standards
Where the incremental borrowing rate involves significant estimation, quantify how reasonably possible alternative rates would change the lease liability, and use the result to judge whether IAS 1.125 estimation-uncertainty disclosure is required. Sensitivity work also supports materiality decisions on portfolio banding. The absence of sensitivity analysis can be acceptable for small portfolios, but document that assessment rather than leaving the question unaddressed.
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Official guidance: IFRS issued standards
IFRS 16.51 sets an objective of giving users a basis to assess the effect of leases on financial position, performance, and cash flows; IFRS 16.59 requires additional qualitative and quantitative information where needed to meet that objective, and IAS 1.122 requires disclosure of significant judgements - discount rate determination is commonly one. Cover the incremental borrowing rate methodology, portfolio banding, and the ranges of rates applied by major asset class.
Discount rate determination and the related judgement disclosures are complete (IFRS 16.26; IFRS 16.51-59). Complete the discount rate judgement disclosures under IFRS 16.59 and IAS 1.122 before issuance.
Official guidance: IFRS issued standards
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