Lease calculation – IFRS 16 Structured best approach

Lease calculation

Lease calculation provides a logical model to understand the calculations that have to be made in accounting for IFRS 16 Leases. In addition a lease contract calculation Excel model is provided to do the work. IFRS 16 Structured best approach

The 5-step lease calculations model

Use the 5-step lease calculations model to systematically document your lease calculations.

Step 1. Identification of a lease contract

a) When should this assessment be made?

An entity is required to assess whether a contract is, or contains a lease at the inception of the contract.

There is a difference between the inception date of the contract and the commencement date of the lease as follows:

Inception Date of the Contract

Commencement Date of the Lease

Is the earlier of the date of:

  • A lease agreement; and
  • A commitment by the parties to the principal terms and conditions of the lease.

The date on which a lessor makes an underlying asset available for use by a lessee.

b) When Does a Lease Exist?

A lease exists where the contract grants the right to control the use of an identified asset for a period of time in exchange for consideration.

Control over the use of an identified asset for a period of time is conveyed when, the customer has both of the following throughout the period of use (IFRS 16.B9):

  1. The right to obtain substantially all of the economic benefits from use of the identified asset; and
  2. The right to direct the use of the identified asset. IFRS 16 Structured best approach

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IFRS vs US GAAP Leases 1 Best complete comparision

IFRS vs US GAAP Leases

1 best read of all comparisons

In 2016, the IASB and FASB issued new standards addressing the accounting for leases (IFRS 16 and ASC 842, respectively). The prior leasing standards (IAS 17 and ASC 840, respectively) were in practice significantly converged. The primary objective of the new standards was to require lessees to recognize assets and liabilities on the balance sheet for most lease contracts. Although the boards accomplished this goal, they did so in different ways.

Thus, while the boards remained largely converged with respect to scope and initial measurement, they significantly diverged on subsequent measurement for lessees: the IASB requires a single measurement model (akin to that for finance leases under U.S. GAAP) while the FASB maintains a two-class system (operating and finance lease classifications).

In addition, while certain presentation and disclosure requirements in IFRS 16 are similar to those in ASC 842, there are also certain differences (quantitative and qualitative) in this area. Other differences between IFRS 16 and ASC 842 may also arise as a result of differences between IFRS Standards and U.S. GAAP in other standards, including those related to (1) impairment of financial instruments and long-lived assets other than goodwill and (2) the accounting for investment properties.

The Lease Standards, effective 2019, requires that leases greater than 12 months are reported on Balance Sheets as Right of Use Assets under both US GAAP and IFRS. US GAAP distinguishes between Operating and Finance Leases (both are recognized on the Balance Sheet), while IFRS does not (any more).

Standards Reference



ASC 842 Leases

IFRS 16 Leases


The following discussion captures a number of the more significant GAAP differences under both the standards. It is important to note that the discussion is not inclusive of all GAAP differences in this area.

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