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Strategic Business Reporting (International) · Leases

IFRS 16 Lease Modifications and Remeasurement Explained

Updated 11 October 2026 · Fact-checked

A lease modification is a change in scope or consideration that was not in the original terms. Treat it as a separate lease if it adds assets at a commensurate price. Otherwise, remeasure the lease liability at a revised discount rate and adjust the right-of-use asset. Reassessing the term or an option also remeasures the liability.

Understand Lease Modifications and Remeasurement

A lease liability is not fixed for life. The lease can change after it starts. IFRS 16 gives two routes: a lease modification and a reassessment. You must decide which one you are in before you do any numbers.

A lease modification is a change in the scope of the lease or the consideration for it that was not part of the original terms. Examples are adding space, cutting space, extending the term by agreement, or renegotiating the rent. Both parties agree to it.

A reassessment happens without a change to the contract. Your own judgement changes. For example, you now think you are reasonably certain to exercise an extension option, or a purchase option. Or an index or rate that drives the payments moves. In these cases you remeasure the liability using the new estimates. The rest of the lease stays as it was.

For a lessee, a modification is first tested for a separate lease. It is separate only if it adds the right to use one or more extra underlying assets, and the price rises by an amount commensurate with the standalone price of that extra scope. If both conditions are met, the old lease carries on untouched and you account for a new lease. If not, you remeasure the existing liability at the modification date using a revised discount rate. A decrease in scope also gives a gain or loss in profit or loss. Other changes adjust the right-of-use asset.

The exam also tests the practical expedient for COVID-19 rent concessions. A lessee may choose not to treat a qualifying concession as a modification. It then recognises the saving as a negative variable lease payment in profit or loss.

Key rules to remember

Separate lease test (lessee)
Separate lease = extra right of use of underlying asset(s) AND price increase ≈ standalone price of the extra scope
Both conditions must be met. The standalone price may be adjusted for the circumstances of the contract. An extension of term alone does not add an asset, so it is not a separate lease.
Modification that is not a separate lease: liability
New liability = PV of revised remaining payments, discounted at the revised rate at the modification date
Use the rate implicit in the lease for the remaining term if it can be readily determined. Otherwise use the lessee's incremental borrowing rate at the modification date. Also reallocate the consideration and determine the new lease term.
Decrease in scope (partial or full termination)
Reduce ROU asset in proportion to the scope decrease. Gain or loss = reduction in liability − reduction in ROU asset
Recognise the gain or loss in profit or loss. Any remaining difference from remeasuring the liability is adjusted against the ROU asset.
Other modifications (not a separate lease, no scope decrease)
ROU asset adjusted by the full remeasurement of the lease liability
Dr ROU asset and Cr lease liability if the liability rises. Do the reverse if it falls.
Reassessment of lease term or purchase option
Remeasure liability using a revised discount rate at the date of reassessment. Adjust ROU asset by the same amount
If the ROU asset is reduced to zero, take any further reduction to profit or loss.
Change in residual value guarantee or in an index or rate
Remeasure liability using the original discount rate. Adjust ROU asset
Exception: if the change comes from a floating interest rate, use a revised discount rate that reflects the rate change.
COVID-19 rent concession expedient (lessee)
Concession is not assessed as a modification if: direct result of COVID-19, consideration is substantially the same or less, reduction affects only payments due on or before 30 June 2022, no other substantive change
Account for the concession as a negative variable lease payment. Derecognise the part of the liability that is forgiven and credit profit or loss. It is optional and applied consistently to similar leases.

How to solve Lease Modifications and Remeasurement questions

Use this order for any scenario question on lease changes. It stops you applying the wrong rule to the right facts.

  1. 1Identify what changed. Is it a contract change agreed by both sides (modification), or a change in your own estimate or an index (reassessment)?
  2. 2If it is a modification, note the effective date. This is the date both parties agree to it. That is the date you remeasure at.
  3. 3Apply the separate lease test. Does it add the right to use an extra asset? Is the price increase commensurate with the standalone price? If both are yes, account for a new lease and leave the old one alone.
  4. 4If not separate, set the revised lease term and the revised discount rate at the modification date. Discount the revised remaining payments to get the new liability.
  5. 5Decide where the difference goes. For a decrease in scope, cut the ROU asset proportionately and take the gain or loss to profit or loss. For anything else, adjust the ROU asset.
  6. 6If it is a reassessment, choose the rate. Use a revised rate for a term or purchase option change. Use the original rate for a change in an index or residual value guarantee.
  7. 7Check the COVID-19 expedient if the scenario mentions pandemic rent relief. Test the conditions before you use it.
  8. 8Finish with the follow-on effect. Depreciate the adjusted ROU asset over the revised term or useful life. Unwind interest on the new liability. Add the professional comment the requirement asks for.

Quickest way: Three-question triage

When to use it: Use this when you have limited time and the scenario gives a lot of facts. It points you to the right treatment in under a minute.

  1. Question 1: did the contract change? If no, it is a reassessment. Remeasure the liability and adjust the ROU asset. Use a revised rate only for a term or purchase option change.
  2. Question 2: does it add a new asset at a fair price? If yes to both, it is a separate lease. Stop. Nothing changes on the old lease.
  3. Question 3: is it a reduction in space or term? If yes, cut the ROU asset by the proportion, remeasure the liability, and take the gain or loss to profit or loss. If no, put the whole remeasurement into the ROU asset.
  4. Write the journal first, then the numbers. Markers give marks for the right debit and credit even if your present value is slightly off.

Common mistakes in Lease Modifications and Remeasurement

  • Treating every extension of term as a separate lease.

    Students see 'extra years' and think 'extra lease'.

    Fix: A separate lease needs extra scope, meaning an additional underlying asset, plus a commensurate price. A pure term extension of the same asset is a modification that remeasures the liability.

  • Using the original discount rate for a modification or a term reassessment.

    Students keep the rate from day one because it is on the schedule.

    Fix: Use a revised rate at the modification date or reassessment date. The original rate is only kept for changes in an index or residual value guarantee payments, with the floating-rate exception.

  • Putting the whole adjustment for a scope decrease into profit or loss, or into the ROU asset.

    Students forget the proportionate split.

    Fix: Reduce the ROU asset by the proportion of scope removed. The gain or loss is the reduction in liability minus the reduction in ROU asset. Any remainder from the rate change goes against the ROU asset.

  • Remeasuring on the date the idea was first discussed instead of the effective date.

    Scenario dates are scattered across the question.

    Fix: A modification is accounted for from the date both parties agree to it. A reassessment is made at the date of the triggering event or change.

  • Applying the COVID-19 expedient to any rent concession.

    Students remember the headline and skip the conditions.

    Fix: Check all conditions. It must be a direct result of COVID-19, the total consideration must be substantially the same or less, and the reduction must only affect payments due on or before 30 June 2022. There must be no other substantive change.

  • Forgetting depreciation and interest after the adjustment.

    Students stop once the journal balances at the modification date.

    Fix: State that the revised ROU asset is depreciated over the remaining term, or useful life if ownership transfers. State that interest runs on the new liability at the revised rate.

Worked examples

Example 1

Alpha leases office space under a lease with 3 years remaining. The annual payment is $100,000, paid in arrears. The lease liability just before the modification is $257,710 and the ROU asset carrying amount is $240,000. Alpha and the lessor agree to reduce the space by 40%. Annual payments fall to $60,000 for the remaining 3 years. The revised discount rate at the modification date is 8%, which is also the original rate. Account for the modification. The 3-year annuity factor at 8% is 2.5771.

Show the solution
  1. The change is agreed by both parties, so it is a modification. It reduces scope, so it is not a separate lease.
  2. Remeasure the liability: $60,000 × 2.5771 = $154,626.
  3. Reduction in the liability: $257,710 − $154,626 = $103,084.
  4. Reduce the ROU asset in proportion to the 40% scope decrease: $240,000 × 40% = $96,000.
  5. Gain or loss = reduction in liability − reduction in ROU asset = $103,084 − $96,000 = $7,084 gain.
  6. Journal: Dr Lease liability $103,084; Cr ROU asset $96,000; Cr Profit or loss (gain on partial termination) $7,084.
  7. Follow-on: the remaining ROU asset of $144,000 is depreciated over the remaining 3 years. Interest accrues on $154,626 at 8%.

Answer: Dr Lease liability $103,084, Cr ROU asset $96,000, Cr Profit or loss $7,084 gain. The new liability is $154,626 and the new ROU asset is $144,000.

Example 2

Beta leases machinery for 4 years, with payments of $50,000 a year in arrears. The original rate was 6%. At the end of year 2, after the second payment, Beta becomes reasonably certain to extend for 2 more years at $50,000 a year. This is an option already in the contract. The revised discount rate at that date is 7%. Calculate the remeasurement and give the journal. Use the 2-year annuity factor at 6% of 1.8334 and the 4-year annuity factor at 7% of 3.3872.

Show the solution
  1. No contract change is agreed. Beta's own assessment of an existing option has changed. This is a reassessment of the lease term, not a modification.
  2. Liability before: 2 remaining payments at 6%: $50,000 × 1.8334 = $91,670.
  3. Liability after: 4 payments (2 original plus 2 extension) at the revised 7% rate: $50,000 × 3.3872 = $169,360.
  4. Increase in liability = $169,360 − $91,670 = $77,690 (small differences arise from rounding of the annuity factors).
  5. Adjust the ROU asset by the same amount. Journal: Dr ROU asset $77,690; Cr Lease liability $77,690.
  6. Follow-on: depreciate the adjusted ROU asset over the revised remaining term of 4 years. Unwind interest at 7% on the new liability.

Answer: Dr ROU asset $77,690, Cr Lease liability $77,690. The lease liability rises from $91,670 to $169,360, using the revised 7% rate.

Exam tips

  • Start with the classification. Say 'this is a modification, not a separate lease because...' in one line. Markers look for the reason, not only the outcome.
  • Write the journal before the calculation. Part marks are given for the right entry and the right accounts.
  • Quote the scenario's facts when you reason, such as the new asset, the price, the effective date and the rate. This earns professional skills marks for applying the standard to the case.
  • If a question asks you to advise management or discuss the impact, comment on gearing, finance costs and EBITDA. A larger liability raises gearing, and depreciation plus interest replaces rent.
  • Learn the short list of when to use the original rate and when to use a revised rate. Questions often test just this point.

Practice questions from Leases

Lease Modifications and Remeasurement in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

Lease Modifications and Remeasurement: frequently asked questions

When is a lease modification a separate lease under IFRS 16?

Only when the modification adds the right to use one or more underlying assets, and the consideration increases by an amount commensurate with the standalone price of that extra scope. If either condition fails, it is not separate. You then remeasure the existing lease liability.

Which discount rate do I use when remeasuring the lease liability?

For a modification that is not a separate lease, and for a change in lease term or purchase option assessment, use a revised rate at that date. Use the implicit rate for the remaining term if it is readily determinable, otherwise the incremental borrowing rate. For changes in an index or a residual value guarantee, keep the original rate. A change in a floating interest rate needs a revised rate.

How is a reassessment of a purchase option accounted for?

If the lessee becomes reasonably certain to exercise a purchase option, it remeasures the liability using a revised discount rate. It adjusts the ROU asset by the change. The depreciation period is then the useful life of the asset, as ownership is expected to transfer.

How does the COVID-19 rent concession practical expedient work?

A lessee may elect not to assess a qualifying concession as a modification. The concession must be a direct result of COVID-19. The total consideration must be substantially the same or less. It must only reduce payments due on or before 30 June 2022, and there must be no other substantive change. The lessee treats the saving as a negative variable lease payment and credits profit or loss.