Lease Modification | IFRS 16

Lease Modification, as per IFRS 16 refers to CHANGES made to the terms and conditions of a lease contract after its inception.

These changes can result from negotiations between the LESSOR and the LESSEE or due to changes in laws and regulations. For example, lease modifications include changes in ‘Lease Term‘, changes in ‘Rent Payments, and changes in the ‘Scope‘ of the lease.

📅 Last Updated: March 2025 👁 Standards: ASC 842 · IFRS 16 · US GAAP

Quick Definition: A lease modification is a change to the original contractual terms and conditions of a lease including alterations to scope, consideration, or lease term that was not part of the initial agreement between the lessor and lessee.

70% of Fortune 500 companies report lease modifications annually
3 major modification categories under ASC 842 & IFRS 16
2016 IFRS 16 issued; ASC 842 effective for public companies 2019

What Is a Lease Modification?

Under both ASC 842 (US GAAP) and IFRS 16 (International), a lease modification is formally defined as a change in the scope or the price of a lease that was not part of the original terms and conditions of the contract. This distinguishes modifications from routine contractual events such as index-based rent adjustments or the exercise of pre-existing renewal options.

Lease modifications are increasingly common in modern business environments. Organizations frequently need to downsize or expand their leased real estate, renegotiate payment schedules, add or remove assets from a Portfolio Agreement, or extend terms to secure continuity. Each of these actions triggers specific accounting obligations under the relevant lease accounting standard.

Modification vs. Remeasurement: A Critical Distinction

Before diving deeper, it is essential to distinguish a modification from a remeasurement. A remeasurement occurs when a pre-contractual trigger activates such as a change in a variable rate index (e.g., CPI) or the exercise of an option already included in the lease. A modification, by contrast, involves parties agreeing to new terms not contemplated in the original contract.

💡
Key Insight

If a lessee and lessor agree to extend the lease term beyond the original contract window by executing an amendment, that is a modification. If the lessee simply exercises a renewal option that was already written into the original lease, that is a remeasurement even though the practical outcome looks similar.

Types of Lease Modifications

Lease modifications come in many forms. Accounting standards broadly categorize them based on whether the modification grants additional rights of use and whether those additional rights are appropriately priced at standalone market rates.

Scope Expansion

Adding new assets to an existing lease such as additional office floors, warehouse units, or vehicles. If priced at standalone market rates, this may qualify as a separate new lease.

Scope Reduction

Partial early termination i.e. returning some assets while retaining others. Requires a proportional reduction in the right-of-use (ROU) asset and lease liability, with any gain/loss recognized immediately in P&L.

Term Extension or Reduction

Agreeing to extend the lease beyond the original end date, or shortening the remaining term. Results in remeasurement of the lease liability and ROU asset using a revised discount rate.

Payment Restructuring

Changing the lease payment amounts, timing, or structure including rent deferrals or rent concessions. COVID-19 spurred widespread use of this type, with specific practical expedients issued by FASB and IASB.

Classification Change

A modification can cause a lease originally classified as an operating lease to be reclassified as a finance lease, or vice versa. This triggers full remeasurement and reclassification of the ROU asset.

Combined Modifications

Real-world modifications often combine multiple changes e.g., extending the term while also adding new assets at a reduced rate. These require careful disaggregation for accounting purposes.

The “Separate New Lease” Test

The most pivotal question in lease modification accounting is whether the modification should be treated as an entirely separate new lease or as a modification of the existing lease. Under both ASC 842 and IFRS 16, a modification qualifies as a separate new lease when both of the following conditions are met:

  • The modification grants the lessee an additional right of use not included in the original lease such as additional space, an extra vehicle, or another physical asset.
  • The increase in lease payments for the additional right of use is commensurate with the standalone price of that right of use, adjusted for contract circumstances.

If both conditions are satisfied, the new scope is accounted for as a fresh lease, and the original lease continues unchanged. If either condition fails, the modification is not a separate lease, and full remeasurement of the existing lease is required.

⚠️
Common Pitfall

Many organizations mistakenly believe that any expansion of leased space automatically constitutes a separate new lease. However, if the pricing is below the current standalone market rate, the arrangement fails the second criterion and must be treated as a modification of the existing lease, requiring full remeasurement.

Accounting Treatment Under ASC 842 & IFRS 16

When a modification does not qualify as a separate new lease, the lessee must remeasure the lease liability and adjust the ROU asset. The remeasurement uses the discount rate as of the modification effective date. Below is a summary of the accounting treatment by modification type.

Modification TypeAccounting TreatmentP&L ImpactComplexity
Scope Expansion (Separate Lease)New ROU asset and lease liability recognized as of modification dateNo immediate P&LLow
Scope Expansion (Not Separate)Remeasure existing liability; adjust ROU assetNo immediate P&LMedium
Scope ReductionProportional reduction of ROU asset and liabilityGain or loss recognized immediatelyMedium
Term ExtensionRemeasure liability at revised discount rate; adjust ROUNo immediate P&LMedium
Payment RestructuringRemeasure liability; adjust ROU assetNo immediate P&LMedium
Lease Classification ChangeReclassify asset; re-measure based on new classificationPotentially significant P&LHigh

Discount Rate at Modification Date

One of the most complex aspects of modification accounting is the requirement to use a revised discount rate as of the modification effective date. Under ASC 842, lessees use the rate implicit in the lease if determinable, or the incremental borrowing rate (IBR) otherwise. The IBR must reflect current market conditions as of the modification date, not the original commencement date.

Best Practice

Maintain a standing process for determining the IBR at various points in time. Interest rate environments shift and the organizations that rely on stale IBR estimates often face audit challenges and misstatement risk during modification accounting.

IFRS 16 vs. ASC 842: Key Differences

While both standards share the core modification framework, there are meaningful differences practitioners must understand:

FeatureASC 842 (US GAAP)IFRS 16
Lessee classificationOperating vs. FinanceSingle model (all finance-type)
Short-term lease practical expedientAvailable (≤12 months)Available (≤12 months)
Discount rate optionIBR or implicit rateIBR or implicit rate (same)
Lessor accounting on modificationRe-evaluate lease classificationSimilar; refer to IFRS 16.87–89
COVID-19 rent concession expedientFASB ASU 2020-05IASB Amendment (May 2020)

Step-by-Step Lease Modification Process

Successfully accounting for a lease modification requires a structured, repeatable process. Below are the key steps organizations should follow from the moment a modification is initiated through to financial reporting.

Identify the Modification Event

Detect the change in lease terms through contract review, lease management systems, or business unit notification. Capture the modification effective date i.e. the date when both parties have agreed to new terms.

Assess Scope & Nature of the Change

Determine whether the modification expands scope, reduces scope, changes the term, restructures payments, or a combination. Document the specific changes and their effective dates.

Apply the Separate New Lease Test

Evaluate whether the modification qualifies as a separate new lease. If yes, initiate a new lease schedule. If no, proceed to remeasurement of the existing lease.

Determine the Revised Discount Rate

Calculate the IBR (or implicit rate) as of the modification effective date. For organizations with many leases, maintain a tiered IBR schedule by currency, term, and credit quality.

Remeasure the Lease Liability

Recalculate the present value of remaining lease payments as of the modification date, using the revised discount rate and updated payment schedule.

Adjust the Right-of-Use Asset

For most modifications, the ROU asset is adjusted by the same amount as the lease liability change. For partial terminations (scope reductions), apply proportional reduction logic and recognize any resulting gain or loss.

Update Disclosures & Documentation

Update the lease schedule, ensure all journal entries are documented, and refresh the disclosure footnotes in the financial statements reflecting the modification and its accounting impact.

Real-World Lease Modification Examples

Example Scenario 01 — Scope Expansion

Technology Company Adds Two Additional Office Floors

A software company has an existing 10-year operating lease for floors 3–5 of an office tower, with 6 years remaining. It agrees with the landlord to add floors 6 and 7 effective immediately. The incremental annual payment for floors 6–7 is $800,000, which is exactly the current market rate for comparable space in the building.

Accounting Treatment: Because additional rights of use are granted AND the price reflects standalone market rates, this qualifies as a separate new lease. A new ROU asset and lease liability are recognized for floors 6–7. The existing lease for floors 3–5 continues unchanged.
Example Scenario 02 — Scope Reduction

Retailer Returns 40% of Warehouse Space

A retailer leases a 50,000 sq ft warehouse under a 7-year finance lease with 4 years remaining. Due to reduced inventory needs, it negotiates with the lessor to reduce the space to 30,000 sq ft (a 40% reduction), with a proportional reduction in rent. The existing lease liability is $2.4M and the ROU asset carries a net book value of $1.9M.

Accounting Treatment: This is a scope reduction. The ROU asset is reduced by 40% (–$760K) and the lease liability is reduced by 40% (–$960K). The difference of $200K is recognized as a gain on lease modification in the income statement on the modification effective date.
Example Scenario 03 — Term Extension (Below Market)

Manufacturer Extends Equipment Lease at Favorable Rate

A manufacturer has a 5-year operating lease on production equipment with 1 year remaining. It agrees to extend the lease for an additional 4 years at a fixed rate below the current market rate for that equipment (due to the existing relationship). The standalone market rate would be 15% higher.

Accounting Treatment: Because the extension is priced below market, it does not qualify as a separate new lease. The full remaining term (1 + 4 = 5 years) is remeasured using the IBR at the modification date. The ROU asset and lease liability are both updated to reflect the new present value of 5 years of payments.

Key Terms & Definitions

Right-of-Use (ROU) Asset
An asset recognized on the balance sheet representing the lessee’s right to use the underlying leased asset over the lease term.
Incremental Borrowing Rate (IBR)
The rate of interest the lessee would pay to borrow, over a similar term and with similar collateral, an amount equal to the lease payments.
Lease Liability
The present value of all remaining lease payments, discounted at the rate implicit in the lease or the IBR, recognized on the balance sheet.
Modification Effective Date
The date at which the modification is agreed upon by both lessor and lessee, triggering all accounting remeasurements under ASC 842 or IFRS 16.
Finance Lease
A lease where substantially all risks and rewards of ownership transfer to the lessee. Similar to a capital lease under the former ASC 840 standard.
Standalone Price
The price at which an entity would sell or lease the right to use an asset individually, in a separate transaction at arm’s length.

Frequently Asked Questions

What is a lease modification?

A lease modification is any change to the original terms and conditions of a lease contract including changes to scope, consideration, or lease term that was not part of the original agreement. Examples include adding leased assets, extending the lease period, changing payment amounts, or returning a portion of leased space early.

Under both ASC 842 and IFRS 16, modifications require specific accounting treatment, including potential remeasurement of the lease liability and ROU asset.

How does a lease modification differ from a remeasurement?

A modification is a new agreement between the parties, terms not contemplated in the original contract. A remeasurement, by contrast is triggered by a pre-existing contractual mechanism, such as an annual CPI rent adjustment or the exercise of a renewal option already written into the original lease.

Remeasurements use the original discount rate (with limited exceptions), while modifications typically require a new IBR as of the modification effective date.

When is a lease modification treated as a separate new lease?

A modification is treated as a separate new lease only when two conditions are simultaneously met: (1) the modification grants additional rights of use not in the original lease, AND (2) the additional consideration payable for the extra rights is commensurate with the standalone market price for those rights.

If either condition fails for instance, the price is below market, or no additional assets are added the modification is treated as a change to the existing lease requiring remeasurement.

Do lease modifications affect the income statement?

Most modifications do not create an immediate income statement impact. The primary effect is a balance sheet remeasurement, adjusting the ROU asset and lease liability simultaneously.

The key exception is a scope reduction (partial early termination). When a lessee returns a portion of leased assets, any difference between the proportional reduction in the liability and the proportional reduction in the ROU asset is recognized as a gain or loss in profit or loss on the modification date.

What discount rate should be used for lease modification accounting?

For modifications that do not qualify as separate new leases, the lessee must use a revised discount rate as of the modification effective date. This is either the rate implicit in the lease (if readily determinable) or the lessee’s incremental borrowing rate as of that date, not the original commencement date rate.

This is a common source of error. Organizations should maintain IBR documentation by currency, credit profile, and lease term to support audit inquiries.

Are rent concessions during COVID-19 treated as lease modifications?

Not necessarily. Both FASB (ASU 2021-05) and the IASB issued practical expedients allowing lessees to elect to account for qualifying COVID-19 related rent concessions such as rent deferrals or forgiveness as if they were not modifications, provided certain criteria were met (e.g., the concession arose directly from COVID-19 and the total consideration is substantially the same or less than original).

Organizations that applied these expedients avoided the need for full modification accounting, instead recognizing changes as variable lease payments or negative variable payments in the period.

📌
Summary Checklist for Lease Modification Accounting
  • Identify the modification and determine the effective date
  • Assess whether modification qualifies as a separate new lease
  • If not separate: obtain revised IBR as of modification date
  • Recalculate the present value of revised future lease payments
  • Adjust ROU asset and lease liability accordingly
  • For scope reductions: recognize gain or loss in P&L
  • Update lease schedule, journal entries, and financial statement disclosures