How is the lease liability calculated and measured under IFRS 16?

Under IFRS 16, a lessee measures the lease liability at the present value of lease payments not yet made, discounted at the rate implicit in the lease or, if that rate cannot be readily determined, the lessee's incremental borrowing rate (IBR). The IFRS 16 Lease Liability Calculation begins at the commencement date and follows a precise measurement framework: - Initial measurement (IFRS 16.26): The lease liability equals the present value of future lease payments, comprising: fixed payments (less any lease incentives receivable), variable payments based on an index or rate (using the index/rate at commencement), amounts expected to be payable under residual value guarantees, the exercise price of a purchase option if reasonably certain to be exercised, and penalties for early termination if the lease term reflects that option. - Discount rate (IFRS 16.26): Use the rate implicit in the lease if readily determinable. If not — which is the practical reality for most lessees — apply the IBR, defined in IFRS 16 Appendix A as the rate the lessee would pay to borrow funds of a similar term and security to obtain an asset of similar value in a similar economic environment. - Subsequent measurement — unwinding (IFRS 16.36): Each period, the carrying amount of the lease liability is increased by the interest accrued (lease liability × effective interest rate) and reduced by lease payments made. This mirrors the effective interest method under IFRS 9.

How should a lessee determine the incremental borrowing rate when the implicit rate in the lease is not readily determinable?

- Remeasurement (IFRS 16.39–45): The lease liability must be remeasured when: (a) the lease term changes following reassessment of extension or termination options; (b) there is a change in the assessment of a purchase option; (c) variable payments linked to an index or rate change; or (d) a contingent residual value guarantee amount changes. Remeasurement adjusts the corresponding right-of-use (ROU) asset, not P&L (unless the ROU asset has been reduced to zero). - Lessee accounting presentation (IFRS 16.47): The lease liability is split between current (payments due within 12 months) and non-current on the balance sheet. It is not netted against the ROU asset. - Disclosure (IFRS 16.58): Lessees must disclose the maturity analysis of lease liabilities (undiscounted cash flows) reconciled to the recognised liability, plus the total cash outflow for leases. Scenario: A company enters a 3-year office lease on 1 January 2024. Annual payments of €100,000 are due at year-end. IBR is 5%. | Year | Payment (€) | Discount Factor (5%) | PV (€) | |------|-------------|----------------------|--------| | 1 | 100,000 | 0.9524 | 95,238 | | 2 | 100,000 | 0.9070 | 90,703 | | 3 | 100,000 | 0.8638 | 86,384 | | Total | | | 272,325 |

What are the IFRS 16 remeasurement requirements when a lease extension option becomes reasonably certain to be exercised mid-lease?

| Account | Dr (€) | Cr (€) | |---|---|---| | Right-of-Use Asset | 272,325 | | | Lease Liability | | 272,325 | | Account | Dr (€) | Cr (€) | |---|---|---| | Finance Cost (Interest) | 13,616 | | | Lease Liability | | 13,616 | | Account | Dr (€) | Cr (€) | |---|---|---| | Lease Liability | 100,000 | | | Cash | | 100,000 | Closing lease liability: €272,325 + €13,616 − €100,000 = €185,941 - IBR determination is underestimated in complexity. Many preparers apply a single group-wide rate rather than a currency-, term-, and entity-specific rate as required by IFRS 16 Appendix A. Auditors increasingly challenge IBR inputs, particularly for foreign-currency leases or subsidiaries with different credit profiles.

How does IFRS 16 treat variable lease payments that are not linked to an index or rate — are they included in the lease liability?

- Omitting variable payments tied to an index. CPI-linked rent escalations must be included in the initial measurement using the index at commencement date (IFRS 16.28). Forgetting this understates both the ROU asset and lease liability from day one. - Incorrect remeasurement routing. When a lease liability is remeasured — for example due to a lease term reassessment — the debit or credit goes to the ROU asset (IFRS 16.45), not directly to P&L. Expensing the adjustment immediately is a frequent error and misrepresents the balance sheet. - IFRS 16.26 — Initial measurement of lease liability: components of lease payments and discounting requirement. - IFRS 16.28 — Inclusion of variable lease payments linked to an index or rate. - IFRS 16.36–38 — Subsequent measurement: effective interest unwinding and payment deduction. - IFRS 16.39–45 — Remeasurement triggers and mechanics, including adjustments to the ROU asset. - IFRS 16.47 — Balance sheet presentation: current/non-current split of lease liability. - IFRS 16 Appendix A — Definition of incremental borrowing rate (IBR).

IFRS 16 Lease Liability Calculation

IFRS 16 Lease Liability Calculation — Core Rule

Under IFRS 16, a lessee measures the lease liability at the present value of lease payments not yet made, discounted at the rate implicit in the lease or, if that rate cannot be readily determined, the lessee's incremental borrowing rate (IBR).

How IFRS 16 Lease Liability Calculation Works

The IFRS 16 Lease Liability Calculation begins at the commencement date and follows a precise measurement framework:

Initial measurement (IFRS 16.26): The lease liability equals the present value of future lease payments, comprising: fixed payments (less any lease incentives receivable), variable payments based on an index or rate (using the index/rate at commencement), amounts expected to be payable under residual value guarantees, the exercise price of a purchase option if reasonably certain to be exercised, and penalties for early termination if the lease term reflects that option.

Discount rate (IFRS 16.26): Use the rate implicit in the lease if readily determinable. If not — which is the practical reality for most lessees — apply the IBR, defined in IFRS 16 Appendix A as the rate the lessee would pay to borrow funds of a similar term and security to obtain an asset of similar value in a similar economic environment.

Subsequent measurement — unwinding (IFRS 16.36): Each period, the carrying amount of the lease liability is increased by the interest accrued (lease liability × effective interest rate) and reduced by lease payments made. This mirrors the effective interest method under IFRS 9.

Remeasurement (IFRS 16.39–45): The lease liability must be remeasured when: (a) the lease term changes following reassessment of extension or termination options; (b) there is a change in the assessment of a purchase option; (c) variable payments linked to an index or rate change; or (d) a contingent residual value guarantee amount changes. Remeasurement adjusts the corresponding right-of-use (ROU) asset, not P&L (unless the ROU asset has been reduced to zero).

Lessee accounting presentation (IFRS 16.47): The lease liability is split between current (payments due within 12 months) and non-current on the balance sheet. It is not netted against the ROU asset.

Disclosure (IFRS 16.58): Lessees must disclose the maturity analysis of lease liabilities (undiscounted cash flows) reconciled to the recognised liability, plus the total cash outflow for leases.

IFRS 16 Lease Liability Calculation — Practical Example

Scenario: A company enters a 3-year office lease on 1 January 2024. Annual payments of €100,000 are due at year-end. IBR is 5%.

Present value calculation

Year	Payment (€)	Discount Factor (5%)	PV (€)
1	100,000	0.9524	95,238
2	100,000	0.9070	90,703
3	100,000	0.8638	86,384
Total			272,325

Journal entry at commencement (1 Jan 2024)

Account	Dr (€)	Cr (€)
Right-of-Use Asset	272,325
Lease Liability		272,325

Year 1 interest accrual (31 Dec 2024)

Account	Dr (€)	Cr (€)
Finance Cost (Interest)	13,616
Lease Liability		13,616

Year 1 lease payment

Account	Dr (€)	Cr (€)
Lease Liability	100,000
Cash		100,000

Closing lease liability: €272,325 + €13,616 − €100,000 = €185,941

IFRS 16 Lease Liability Calculation — Common Pitfalls

IBR determination is underestimated in complexity. Many preparers apply a single group-wide rate rather than a currency-, term-, and entity-specific rate as required by IFRS 16 Appendix A. Auditors increasingly challenge IBR inputs, particularly for foreign-currency leases or subsidiaries with different credit profiles.

Omitting variable payments tied to an index. CPI-linked rent escalations must be included in the initial measurement using the index at commencement date (IFRS 16.28). Forgetting this understates both the ROU asset and lease liability from day one.

Incorrect remeasurement routing. When a lease liability is remeasured — for example due to a lease term reassessment — the debit or credit goes to the ROU asset (IFRS 16.45), not directly to P&L. Expensing the adjustment immediately is a frequent error and misrepresents the balance sheet.

IFRS 16 Lease Liability Calculation — Key Paragraphs

IFRS 16.26 — Initial measurement of lease liability: components of lease payments and discounting requirement.
IFRS 16.28 — Inclusion of variable lease payments linked to an index or rate.
IFRS 16.36–38 — Subsequent measurement: effective interest unwinding and payment deduction.
IFRS 16.39–45 — Remeasurement triggers and mechanics, including adjustments to the ROU asset.
IFRS 16.47 — Balance sheet presentation: current/non-current split of lease liability.
IFRS 16 Appendix A — Definition of incremental borrowing rate (IBR).