IFRS 9 Debt Modification 10% Test: A Practical Guide

What is the IFRS 9 debt modification 10% test?

The IFRS 9 debt modification 10% test helps a borrower decide whether renegotiated debt is still the same financial liability or is substantially different debt. That decision changes the accounting: a non-substantial modification keeps the liability and remeasures it, while a substantial modification extinguishes the old liability and recognises a new one.

The starting point is [IFRS](/glossary#ifrs) 9 paragraphs 3.3.2 and B3.3.6. Compare the present value of cash flows under the new terms, including qualifying lender-borrower fees, with the present value of the remaining original cash flows. Discount both using the original effective interest rate. A difference of at least 10% means the terms are substantially different under the quantitative test.

This is a borrower-side guide for liabilities measured at amortised cost. It does not replace the separate analysis a lender performs for a modified financial asset. It also does not turn the test into a mechanical shortcut. Contractual changes such as currency, embedded features, guarantees, conversion rights, or a major change in the nature of the instrument can require qualitative judgement. If the renegotiation follows financial stress, consider the impairment analysis separately; the [IFRS 9 expected credit loss guide](/learn/expected-credit-loss-ifrs-9) explains that asset-side model.

The current requirements are available in the [2026 compiled AASB 9 text](https://standards.aasb.gov.au/sites/default/files/2026-03/AASB9_12-14_COMPfeb25_01-26.pdf), which reproduces the corresponding IFRS 9 requirements. The IASB is working on targeted clarifications, but tentative decisions are not effective requirements.

How do you calculate the IFRS 9 debt modification 10% test?

Use one controlled calculation rather than comparing face values or total undiscounted payments. The practical sequence is: identify the contractual change date, freeze the original effective interest rate, map the remaining original cash flows, map the modified cash flows, identify fees included in the quantitative test, and discount both cash-flow sets to the modification date.

• Original present value: discount the remaining original contractual cash flows at the original effective interest rate.
• Modified present value: discount the revised contractual cash flows at that same rate and include fees paid net of fees received between borrower and lender when the standard requires them in the test.
• Percentage difference: divide the absolute difference between those present values by the original present value.
• Conclusion: at least 10% is substantial under B3.3.6; below 10% requires the entity to finish its qualitative assessment rather than automatically conclude that nothing important changed.

Do not substitute the revised coupon, current market yield, or a new borrowing rate for the original effective interest rate. The point is to measure how far the new contract moved from the economics already embedded in the liability. The result is also not a rounding contest: retain sufficient precision in the model, document timing conventions, and investigate a result close to 10%.

The phrase “including fees” often causes mistakes. The 10% calculation focuses on relevant fees exchanged between the borrower and lender, including amounts paid by one on the other’s behalf. Adviser, legal, and arrangement costs still need accounting, but they do not all belong in the quantitative test. The [IFRS Interpretations Committee’s fees discussion](https://www.ifrs.org/news-and-events/news/2016/05/ifrs-ic-not-to-add-ias-39-ifrs-9-issue-to-agenda/) is a useful source for documenting the boundary.

Worked example 1: a non-substantial modification

Najd Equipment Co. has a loan with a carrying amount of SAR 1,000,000 at the modification date. Its original effective interest rate is 6%. The remaining original payments are SAR 60,000 after year 1, SAR 60,000 after year 2, and SAR 1,060,000 after year 3. Their present value at 6% is SAR 1,000,000.

The lender agrees to reduce the annual coupon. Modified payments become SAR 40,000 after year 1, SAR 40,000 after year 2, and SAR 1,040,000 after year 3. There are no modification fees and no qualitative feature that makes the new terms substantially different.

The difference is SAR 53,460. Dividing it by SAR 1,000,000 gives 5.35%, so the quantitative threshold is not met. Najd Equipment keeps the liability, reduces its amortised cost to SAR 946,540, and recognises the difference immediately as a gain in profit or loss.

The [journal entry](/glossary#journal-entry) is: debit the loan liability SAR 53,460; credit modification gain in profit or loss SAR 53,460. From that adjusted carrying amount, applying 6% produces finance costs that accrete the balance to the revised contractual payments. Small rounding differences should be cleared in the final period, not hidden in the initial conclusion.

Worked example 2: a substantial modification

Gulf Logistics Services has debt with a carrying amount and original present value of SAR 2,000,000. The original effective interest rate is 8%. Remaining payments are SAR 160,000 after year 1, SAR 160,000 after year 2, and SAR 2,160,000 after year 3.

After renegotiation, there is no payment in year 1, SAR 50,000 is due in year 2, and SAR 2,050,000 is due in year 3. Discounted at the original 8% rate, the modified cash flows have a present value of approximately SAR 1,670,223.

Because 16.49% is at least 10%, the old liability is extinguished. Assume the [fair value](/glossary#fair-value) of the new liability is SAR 1,780,000 and no costs or fees arise. Gulf Logistics derecognises the SAR 2,000,000 old liability, recognises the new liability at SAR 1,780,000, and records a SAR 220,000 extinguishment gain in profit or loss.

The entry is: debit old loan liability SAR 2,000,000; credit new loan liability SAR 1,780,000; credit extinguishment gain SAR 220,000. Notice that SAR 1,670,223 answers the 10% test, while SAR 1,780,000 is the assumed initial measurement of the new liability. Treating the test amount as the new liability’s fair value would collapse two separate measurement questions into one.

What happens to modification fees and transaction costs?

Fees require two separate labels: who receives the amount, and what accounting conclusion was reached. First identify fees paid or received between borrower and lender for the 10% test. Then account for all relevant costs and fees based on whether the modification caused derecognition.

If the change is substantial, costs or fees incurred as part of the exchange or modification are included in the extinguishment result. The old liability leaves the books, the new liability is recognised at [fair value](/glossary#fair-value), and the related gain or loss is recognised immediately. If the change is not substantial, applicable costs or fees adjust the carrying amount of the continuing liability and are amortised over its remaining term. Keep the fee schedule tied to invoices and counterparties so the model can be audited.

A clean workpaper therefore has at least three columns: lender-borrower fee included in the test, third-party cost excluded from the test, and subsequent accounting treatment. Do not net every invoice into revised cash flows simply because it arose near the signing date.

There is an active IASB project on amortised cost measurement. In September 2026 the Board tentatively decided to clarify the scope of costs and fees and how unamortised amounts continue when a modification does not cause derecognition. Those decisions remain tentative as of this article’s publication date; the [IASB September 2026 update](https://www.ifrs.org/news-and-events/updates/iasb/2026/iasb-update-september-2026/) says deliberations will continue. Apply issued IFRS 9 today and monitor the project rather than treating a tentative decision as an amendment.

How does the conclusion flow into the financial statements?

A debt modification affects more than the loan schedule. The accounting conclusion determines the liability reported in the [balance sheet](/glossary#balance-sheet), the gain or loss reported in the [income statement](/glossary#income-statement), and the future finance cost pattern. It can also affect current-versus-non-current classification, covenant disclosures, liquidity information, and the description of significant judgements.

For a non-substantial modification, the existing liability continues. Remeasure the amortised cost using the modified contractual cash flows discounted at the original effective interest rate and recognise the adjustment immediately in profit or loss. The IFRS Interpretations Committee confirmed that approach for modifications that do not result in derecognition. Build a new amortisation schedule from the adjusted carrying amount and reconcile it to the general ledger at every reporting date.

For a substantial modification, remove the original liability and recognise the new liability. The extinguishment result is the difference between the old carrying amount and the consideration paid, including the new liability measured under the applicable recognition requirements. Presentation labels should describe the economic event clearly instead of burying it in ordinary interest expense.

The debt line does not stand alone. Check the [balance sheet guide](/learn/balance-sheet-guide) when mapping the closing carrying amount, then connect the modification gain or loss to finance disclosures and cash-flow classifications. Also reassess disclosures about risks, defaults, covenant waivers, and material judgements under the standards that apply to the entity’s facts.

Common mistakes in the IFRS 9 debt modification 10% test

Most errors come from mixing the decision test with the accounting that follows it. A short review checklist catches them before the entry reaches the ledger.

• Comparing nominal totals: the test uses discounted present values, not the difference between face amounts or total future cash.
• Using the new market rate: discount with the original effective interest rate unless a specific IFRS 9 requirement for the instrument changes the analysis.
• Using 10% as a safe harbour: a result below 10% does not erase qualitative factors. Document changes in currency, conversion rights, collateral, guarantees, and other contractual features.
• Including every professional fee in the test: identify who paid whom and separate lender-borrower fees from third-party costs.
• Setting the new liability equal to the test PV: after derecognition, initial measurement of the new liability is a separate step.
• Deferring a non-substantial modification gain or loss: the remeasurement adjustment is recognised immediately in profit or loss under the current requirements.
• Calling tentative IASB decisions effective: the Board’s 2026 project may clarify the model, but tentative decisions do not amend issued IFRS 9.
• Ignoring the wider close: reconcile the contract, calculation, approval, [journal entry](/glossary#journal-entry), disclosure note, and subsequent amortisation schedule.

For borderline results, run sensitivities for payment dates and fee classification, preserve full precision, and obtain an independent review. The calculation should be reproducible from signed terms without relying on unexplained spreadsheet overrides.

How should you practise the IFRS 9 debt modification 10% test?

Practise the decision in layers. First, take a plain fixed-rate loan and calculate both present values. Second, add one lender fee and one third-party legal cost, then explain which amount enters the test. Third, change a qualitative term and write a short conclusion before posting any entry. Finally, build the post-modification amortisation schedule and prove that the closing liability agrees with the contract.

A strong answer shows five outputs: the original cash-flow schedule, the modified schedule, the discount rate, the percentage difference, and the accounting conclusion. Then it separates the test from measurement of the continuing or new liability. That structure is useful in exams, close files, and audit support because another reviewer can follow the reasoning without reverse-engineering a single spreadsheet cell.

Use fictional amounts first, then practise with a redacted contract. Accountery’s financial-statement and journal-entry exercises can help you rehearse the mechanics around [IFRS](/glossary#ifrs), balanced entries, and liability presentation. The goal is not to memorise “10%”; it is to connect contractual cash flows to a documented conclusion and a balanced posting.

Before finalising a real transaction, check the latest issued standard and the [IASB amortised cost measurement project](https://www.ifrs.org/projects/work-plan/amortised-cost-measurement/). As of November 2026, the project’s next milestone is an exposure draft. Keep that developing guidance separate from the requirements currently in force.