1. What Is a Lease Modification?

A lease modification is defined under IFRS 16 as a change in the scope of a lease, or the consideration for a lease, that was not part of the original terms and conditions of the lease (IFRS 16, paragraph 45). The definition is deliberately broad, capturing a wide spectrum of commercial renegotiations that arise between lessors and lessees during the life of a lease.

📖 Standard Definition – IFRS 16.45

A lease modification is a change in the scope of a lease, or the consideration for a lease, that was not part of the original terms and conditions of the lease. Examples include adding or terminating the right to use one or more underlying assets, or extending or shortening the contractual lease term.

Why Lease Modifications Arise in Practice

Lease modifications occur for numerous commercial reasons. A lessee may need additional warehouse space as its business expands, or may wish to surrender floors in an office building during a downturn. Rent holidays negotiated with landlords, extensions to avoid the cost of relocation, or renegotiated payment profiles following a change in credit risk, all fall squarely within the IFRS 16 modification framework.

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Scope Changes

Adding or removing underlying assets, floors, parking bays, or equipment from the lease arrangement.

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Term Changes

Extending or shortening the lease term, including the exercise or waiver of extension and termination options.

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Consideration Changes

Revising lease payments, including changes to variable-to-fixed conversions, rent-free periods, or payment timing.

⚠️ Critical Distinction

Not every change in lease payments constitutes a modification. Changes resulting from the remeasurement triggers already specified in IFRS 16 paragraphs 40–43 such as a revised residual value guarantee, a change in index or rate, or reassessment of options are remeasurements, not modifications, and follow a different accounting pathway.

2. Scope & Identifying a Modification

The first analytical step when a change to lease terms is agreed is to determine whether the change constitutes a modification at all, or whether it should instead be treated as a remeasurement under the standard’s existing provisions, or as a separate new lease from the outset.

The Two-Element Test

For a change to be classified as a lease modification under IFRS 16, it must affect either:

  1. 1
    The Scope of the Lease

    This includes any change to the nature, quantity, or identity of the underlying assets the lessee has the right to use, as well as changes to the lease term that are negotiated rather than arising from the exercise of a pre-existing option.

  2. 2
    The Consideration for the Lease

    This captures changes to the lease payments agreed between the parties, whether by reducing, increasing, restructuring, or deferring amounts, provided such changes were not contemplated in the original lease terms.

✅ Examples of Modifications

Lessee negotiates an additional two years beyond the original term at a new market rate; lessee surrenders two floors of a five-floor office lease; lessee and lessor agree to convert variable lease payments to a fixed monthly amount; lessor grants a permanent rent reduction.

✗ Not a Modification – Remeasurement Triggers Instead

Lessee reassesses whether a renewal option will be exercised (IFRS 16.40); lease payments change because the linked CPI Index is updated (IFRS 16.42); a residual value guarantee is revised (IFRS 16.42). These are remeasurements, not modifications and the lease liability is remeasured using the original discount rate (or revised rate where specified).

3. Separate Lease vs. Not a Separate Lease

Once a change is confirmed to be a lease modification, the next critical determination is whether that modification should be accounted for as a separate, new lease or as an adjustment to the existing lease. This distinction has profoundly different accounting consequences.

The Two-Condition Test for a Separate Lease

Under IFRS 16 paragraph 44, a modification is accounted for as a separate new lease only if both of the following conditions are satisfied:

Condition 1: Does the modification add the right to use one or more additional underlying assets?
BOTH must be YES
The modification includes additional assets e.g., lessee takes an extra floor in the same building, or adds vehicles to a fleet lease.
Condition 2: Is the increase in lease payments commensurate with the standalone price of the additional right of use, adjusted for circumstances?
If YES → Separate New Lease
The additional consideration reflects what would be charged for the new asset in isolation, it is not artificially bundled with changes to existing terms.
⚖️ The “Commensurate” Judgement

The commensurate test requires significant judgement. Lessees must assess whether the price of the additional right of use approximates what a landlord or lessor would charge for it on a standalone basis, after adjusting for volume discounts, tenant incentives, or market conditions specific to the transaction. There is no bright-line threshold.

If Both Conditions Are Met: Separate New Lease

When a modification qualifies as a separate new lease, the entity simply applies the normal commencement-date accounting to the newly added asset. The original lease continues to be accounted for under its existing terms, without adjustment. This is the simplest outcome.

If Either Condition Fails: Not a Separate Lease

If the modification does not qualify as a separate new lease either because it does not add new assets, or because the pricing is not commensurate, the lessee must apply one of three accounting pathways depending on the nature of the modification. These are covered in sections 4, 5, and 6 below.

4. Lessee Accounting — Overview

For modifications that are not treated as separate leases, a lessee accounts for the modification at the effective date of the modification that is, the date on which both parties agree to the modification. The core mechanics involve:

  1. 1
    Remeasuring the lease liability

    The lease liability is remeasured using a revised discount rate, typically the lessee’s incremental borrowing rate at the modification date. The revised liability reflects revised lease payments over the revised lease term.

  2. 2
    Adjusting the right-of-use (ROU) asset

    The corresponding debit or credit is recorded against the right-of-use asset, except in the case of a full or partial decrease in scope, where a gain or loss is recognised in profit or loss.

  3. 3
    Reassessing the lease classification (IFRS 16.46(b))

    Where a modification is not a separate lease and would not have changed the original classification, there is no reclassification requirement. However, for certain finance-to-operating or operating-to-finance reclassifications triggered by modifications, specific guidance applies.

Table 1: Summary of lessee modification accounting by modification type
Modification TypeDiscount Rate UsedROU AssetP&L Impact
Separate new lease (adds assets, commensurate price)Rate at modification dateNew ROU asset recognisedNone at modification
Full decrease in scopeRevised IBR at modification dateDerecognised in fullGain or loss recognised
Partial decrease in scopeRevised IBR at modification dateReduced proportionallyGain or loss on derecognised portion
All other modifications (increase in scope or consideration)Revised IBR at modification dateIncreased by adjustment amountNone at modification

5. Modifications That Decrease the Scope

Modifications that reduce the scope of the lease whether by shortening the lease term, surrendering part of the asset, or both (require the most careful accounting). Under IFRS 16 paragraph 46(a), before making any other adjustment, the lessee must recognise a gain or loss in profit or loss reflecting the partial or full termination.

Step-by-Step: Partial Decrease in Scope

  1. 1
    Determine the proportion of scope surrendered

    Express the reduction as a proportion of the original asset e.g., surrendering 2 of 5 floors = 40% reduction. For term reductions, calculate the proportion of remaining lease term eliminated.

  2. 2
    Reduce the carrying amounts proportionally

    Reduce both the right-of-use asset and the lease liability by the proportion surrendered, calculated before any remeasurement adjustment.

  3. 3
    Recognise the gain or loss

    The difference between the reduction in lease liability and the reduction in ROU asset is the gain (or loss) on modification, recognised immediately in profit or loss.

  4. 4
    Remeasure the remaining lease liability

    Remeasure the residual lease liability using a revised discount rate (revised IBR at the modification effective date) and adjust the residual ROU asset accordingly.

📐 The Gain / Loss Formula

Gain (Loss) = Reduction in lease liability − Reduction in ROU asset

Where the reduction in lease liability exceeds the reduction in ROU asset, a gain arises. Where the carrying amount of the ROU asset surrendered exceeds the liability reduction, a loss arises.

Full Termination (Full Decrease in Scope)

A full lease termination before the end of the lease term is treated as a special case of a decrease in scope. The lessee derecognises both the right-of-use asset and the lease liability in their entirety, and recognises the net difference as a gain or loss in profit or loss on the termination date. Any lease incentives, prepayments, or accruals relating to the terminated lease are also derecognised.

6. Other Modifications (Increases or Mixed Changes)

All modifications that are not (a) separate new leases and (b) not a full or partial decrease in scope fall within the residual category under IFRS 16 paragraph 46(b). This includes:

  • Extensions of the lease term (not originally included in options)
  • Increases in the scope of the lease where pricing is not commensurate (so it fails the separate-lease test)
  • A combined increase in scope and reduction in consideration
  • Modifications that only change the lease payments (e.g., rent reductions or increases)

Accounting Treatment

For these modifications, the lessee remeasures the lease liability at the modification effective date using the revised incremental borrowing rate, reflecting the revised lease payments over the revised remaining lease term. The entire adjustment to the lease liability is recorded as a corresponding adjustment to the right-of-use asset. No gain or loss is recognised in profit or loss at the modification date itself.

🔑 Key Principle

For modifications other than decreases in scope, all adjustment goes to the ROU asset. Profit or loss is unaffected at the modification date. The revised carrying amount then depreciates over the revised remaining lease term.

7. Lessor Accounting for Lease Modifications

Lessor accounting for lease modifications differs depending on whether the original lease was classified as a finance lease or an operating lease at commencement.

Finance Leases (Lessor)

Under IFRS 16 paragraph 79, for a finance lease modification that is a separate new lease, the lessor accounts for the modification as a new lease from the effective date. For all other finance lease modifications, the lessor applies the derecognition and measurement requirements of IFRS 9 Financial Instruments to the net investment in the lease.

Original Lease TypeModification Qualifies as Separate LeaseModification Does NOT Qualify as Separate Lease
Finance LeaseNew lease from effective dateApply IFRS 9 derecognition / modification principles to the net investment
Operating LeaseNew lease from effective dateAccount for as new operating lease from effective date; any prepaid or accrued lease payments treated as part of new lease payments

Operating Leases (Lessor)

For operating lease modifications that do not qualify as separate leases, the lessor accounts for the modification as a new lease from the effective date of the modification (IFRS 16.87). Any prepaid or accrued lease payments relating to the original lease are treated as part of the new lease payments. The lessor then recognises lease income on the modified lease on a straight-line basis (or another systematic basis) over the new lease term.

Intermediate Lessors in Sublease Arrangements

Where an intermediate lessor has both a head lease (as lessee) and a sublease (as lessor), a modification to the head lease is accounted for separately. The intermediate lessor assesses whether the head lease modification results in a remeasurement of the ROU asset and lease liability (as a lessee), and separately whether the sublease needs to be modified or reclassified. These two assessments are performed independently.

8. Worked Examples with Journal Entries

Example A Extension of Lease Term – Not a Separate Lease

Scenario: On 1 January 20X1, Lessee Ltd entered a five-year lease for an office building. Annual lease payments are CU 100,000, payable in arrears. The incremental borrowing rate (IBR) at commencement was 5% per annum. On 1 January 20X3 (the start of Year 3), Lessee and Lessor agree to extend the lease by an additional two years (to 31 December 20X7) at the same annual rental of CU 100,000. The revised IBR at 1 January 20X3 is 6%.

Carrying amounts immediately before modification (1 Jan 20X3):

Lease liability (before mod): CU 185,941 (PV of 3 remaining payments at 5%)
ROU asset (before mod): CU 218,846 (cost CU 432,948 less 2 yrs depreciation)

Step 1 – Remeasure lease liability at 1 Jan 20X3:

Revised payments: 5 payments of CU 100,000 (Years 3–7)
Discounted at revised IBR of 6%: PV = CU 421,236
Increase in lease liability: CU 421,236 − CU 185,941 = CU 235,295

Step 2 – Adjust ROU asset by same amount:

AccountDebit (CU)Credit (CU)
Right-of-Use Asset235,295
Lease Liability235,295

The revised ROU asset of CU 454,141 is depreciated over the revised remaining lease term of five years (20X3–20X7). No gain or loss is recognised in profit or loss.

Example B Partial Scope Reduction – Floor Surrender

Scenario: Lessee Corp leases five floors of a building for seven years. On the modification date, the carrying amounts are: Lease Liability CU 2,400,000; ROU Asset CU 2,100,000. Lessee negotiates a surrender of two floors (40% of scope) effective immediately. The reduction in lease payments reduces the lease liability (remeasured at the revised IBR) by CU 1,050,000 for the surrendered portion.

Step 1 – Proportional reduction in carrying amounts (40%):

Reduction in Lease Liability (40% × 2,400,000) = CU 960,000
Reduction in ROU Asset (40% × 2,100,000) = CU 840,000
Gain = CU 960,000 − CU 840,000 = CU 120,000

Step 2 – Journal entry at modification date (scope reduction):

AccountDebit (CU)Credit (CU)
Lease Liability960,000
Right-of-Use Asset840,000
Gain on Lease Modification (P&L)120,000

Step 3 – Remeasure residual lease liability (60% retained) at revised IBR:

Residual Lease Liability before remeasurement: CU 1,440,000 (60% × 2,400,000)
Revised PV of future payments for 3 retained floors = CU 1,480,000 (assumed)
Adjustment: CU 40,000 increase → debit ROU Asset, credit Lease Liability
AccountDebit (CU)Credit (CU)
Right-of-Use Asset40,000
Lease Liability40,000

The gain on the scope reduction (CU 120,000) is presented as a separate line within operating income or other income, depending on the entity’s accounting policy and materiality.

Example C Separate New Lease – Additional Asset at Commensurate Price

Scenario: Lessee plc has an existing five-year office lease. In Year 2, it agrees with the same landlord to lease an additional adjacent unit for three years, at a monthly rental of CU 8,000. This rate is verified to be the current market rate for that unit in isolation. Both conditions for a separate new lease are met.

Accounting: Lessee plc accounts for the new unit as a completely independent lease. It recognises a new ROU asset and a new lease liability at the commencement of the additional unit’s lease, measured as the present value of the 36 monthly payments of CU 8,000 discounted at the IBR on that date. The original lease accounting is not altered in any way. No modification analysis is required for the original lease.

9. Disclosure Requirements

IFRS 16 requires lessees and lessors to provide disclosures that enable users of financial statements to assess the effect of leases including modifications on the entity’s financial position, financial performance, and cash flows.

Lessee Disclosures (Quantitative)

Disclosure ItemRelevant ParagraphNotes
Additions to ROU assetsIFRS 16.53(h)Include additions arising from modifications
Gains or losses on disposal or derecognition of ROUIFRS 16.53(h)Captures scope reduction gains/losses
Maturity analysis of lease liabilitiesIFRS 16.58 / IFRS 7.39Reflect revised payment profile post-modification
Short-term / low-value / variable lease expenseIFRS 16.53(b–d)Any reclassification post-modification
Total cash outflow for leasesIFRS 16.53(g)Include any modification-related payments

Qualitative Disclosures

Where modifications are significant, entities should disclose the nature and terms of the modification, the key assumptions made (particularly the revised IBR), and any significant judgements for instance, whether a modification met the criteria to be treated as a separate new lease. Such qualitative disclosures are required to the extent they are material to understanding the financial statements.

Lessor Disclosures

Lessors disclose a maturity analysis of lease payments receivable (IFRS 16.94 for finance leases; IFRS 16.97 for operating leases). Post-modification payment profiles must be reflected in these analyses. For significant modifications to finance leases that are not separate new leases, the IFRS 9 impairment disclosures relating to the net investment in the lease also become relevant.

10. Common Errors & Pitfalls

✗ Error 1: Confusing Modifications with Remeasurements

One of the most frequently encountered errors is treating a reassessment of a lease term option (IFRS 16.40) as a modification. If a lessee reassesses that it will exercise a renewal option it had previously not included in the lease term, this is a remeasurement (not a modification). The IBR used is the revised rate at the date of remeasurement, but the accounting pathway is different: the adjustment always goes to the ROU asset, and there is never a gain or loss.

✗ Error 2: Using the Original Discount Rate for All Modifications

Some practitioners incorrectly apply the original discount rate when remeasuring the lease liability following a modification. IFRS 16 is clear: for modifications that are not separate leases, the revised incremental borrowing rate at the modification effective date is used. The only circumstance where the original rate is relevant to modifications is in measuring the net investment under IFRS 9 for finance lease lessor modifications.

✗ Error 3: Sequencing Errors in Scope Reductions

When a modification both decreases scope and changes consideration, some preparers apply the remeasurement adjustment before recognising the gain or loss. The correct sequence under IFRS 16.46(a) is: (1) proportionally reduce carrying amounts and recognise the gain or loss first, then (2) remeasure the residual lease liability at the revised IBR and adjust the residual ROU asset.

✗ Error 4: Failing to Reassess the Modification Date

The effective date of a modification is the date on which both parties agree to the modification, not the date the revised payment schedule begins. Where there is a gap between agreement and commencement of revised payments, the modification accounting is applied at the agreement date, and the revised payments are accrued accordingly.

✗ Error 5: Overlooking Intermediate Lessor Complexity

Entities that are intermediate lessors in sublease arrangements must separately assess each modification, once as a lessee (for the head lease) and once as a lessor (for the sublease). A modification to the head lease does not automatically require a modification to the sublease, and vice versa. Each assessment follows its own pathway independently.

11. Frequently Asked Questions

What is a lease modification under IFRS 16?
A lease modification is any change in the scope of a lease or in the consideration for a lease that was not part of the original terms and conditions. It encompasses additions or removals of underlying assets, changes to the lease term negotiated between parties, and renegotiated payment amounts that were not contractually anticipated.
When is a lease modification treated as a separate new lease?
A modification is treated as a separate new lease only when both of the following conditions are met: (1) the modification adds the right to use one or more additional underlying assets, AND (2) the increase in consideration is commensurate with the standalone price of the additional right of use, adjusted for the specific circumstances of the contract. If either condition fails, the modification is not a separate lease.
Which discount rate applies when remeasuring the lease liability on modification?
For modifications that are not separate new leases, the lessee uses its revised incremental borrowing rate at the modification effective date. This is the rate it would incur to borrow funds necessary to obtain an asset of similar value in a similar economic environment over the revised lease term. The original commencement-date rate is not used.
Is a gain or loss always recognised when a lease modification reduces scope?
Yes. Whenever a modification reduces the scope of the lease whether by shortening the lease term, surrendering part of the underlying asset, or both (IFRS 16 requires recognition of a gain or loss in profit or loss for the derecognised portion). The gain or loss equals the difference between the proportional reduction in the lease liability and the proportional reduction in the ROU asset, calculated prior to any remeasurement of the residual position.
How does a lessor account for modifications to an operating lease?
For operating lease modifications that do not qualify as a separate new lease, the lessor accounts for the modification as a new lease from the effective date of the modification. Any prepaid or accrued amounts from the original lease are treated as part of the new lease payments and recognised on a revised straight-line (or other systematic) basis over the new term.
What is the effective date of a modification?
The effective date of a modification is the date on which both the lessee and the lessor agree to the modification. This is the date on which all modification accounting entries are made and carrying amounts are updated, it is not necessarily the date the revised payment schedule commences.

12. Key Takeaways

IFRS 16 Lease Modifications – At a Glance

  • A modification is a change in scope or consideration not in the original lease terms.
  • Distinguish modifications from remeasurements triggered by original terms.
  • A separate new lease requires both additional assets AND commensurate pricing.
  • All modifications use the revised IBR at the modification effective date.
  • Scope reductions always require a gain or loss in profit or loss.
  • For other modifications, all adjustments go to the ROU asset, no P&L impact.
  • Perform scope-reduction adjustments before remeasurement of residual balance.
  • Lessor treatment differs for finance vs. operating leases.
  • Intermediate lessors must assess head lease and sublease modifications independently.
  • Disclosures must reflect the revised payment profile in the maturity analysis.