What IFRS 18 Transition Involves
IFRS 18 Presentation and Disclosure in Financial Statements replaces IAS 1 and is effective for annual reporting periods beginning on or after 1 January 2027. The standard is applied retrospectively, so the comparative period must be re-presented on the new basis.
Recognition and measurement of assets and liabilities are unchanged. No asset is remeasured, no liability is recalculated, and profit for the year is identical before and after transition. What changes is the architecture of the statements:
- Income and expenses are sorted into five categories.
- Two new subtotals become mandatory.
- Operating expenses must be analysed on the face of the statement of profit or loss.
- Management-defined performance measures move inside the audited financial statements.
- Aggregation and labelling decisions must be justified against a stated principle.
The workload therefore sits in data and presentation design rather than in accounting entries. Nothing is posted to the ledger, but almost every line of the primary statements moves, and the detail needed to move it is often not held at the granularity the standard assumes.
Effective Date and Your Transition Timetable
Early adoption is permitted if that fact is clearly stated in the AFS, but the standard only becomes mandatory for reporting periods beginning on or after 1 January 2027. The date of initial application is the beginning of that first annual period.
Because the comparative period is re-presented, the period during which transition-relevant data must be available begins one full financial year earlier.
| Financial year-end | First annual period under IFRS 18 | Comparative period restated | Comparative period begins |
|---|---|---|---|
| 31 December | Year ending 31 December 2027 | Year ended 31 December 2026 | 1 January 2026 |
| 31 March | Year ending 31 March 2028 | Year ending 31 March 2027 | 1 April 2026 |
| 30 June | Year ending 30 June 2028 | Year ending 30 June 2027 | 1 July 2026 |
| 30 September | Year ending 30 September 2028 | Year ending 30 September 2027 | 1 October 2026 |
Entities reporting half-yearly should work back from the interim deadline rather than the annual one. A 31 December year-end group publishing June 2027 interims needs a restated June 2026 comparative income statement on the IFRS 18 basis.
Early adoption
Early application is permitted and must be disclosed. The consequential amendments to IAS 7 and IAS 34 are adopted at the same time. It is worth considering where an entity is already redesigning its reporting for another reason, such as a group restructuring, an ERP implementation or a listing.
Retrospective Application and Comparatives
IFRS 18 is applied retrospectively in accordance with IAS 8, subject to the specific transition provisions in Appendix C of the standard. Every period presented is prepared as though IFRS 18 had always applied.
For the comparative statement of profit or loss, this means:
- Re-categorising every item of income and expense into the operating, investing, financing, income tax and discontinued operations categories.
- Presenting operating profit or loss, and profit or loss before financing and income taxes, as subtotals for the comparative period.
- Re-presenting the analysis of operating expenses on the face of the statement, by nature, by function or on a mixed basis, using the same approach as the current period.
- Providing the note disclosures that accompany the chosen approach, including the specified nature-of-expense amounts where a function-based presentation is used.
- Disclosing management-defined performance measures, with their reconciliations, for the comparative period as well as the current period.
Because there is no change to recognition or measurement, there is no adjustment to opening retained earnings, no restatement of prior-period profit, and no change to earnings per share.
Third statement of financial position
A third statement of financial position is required where retrospective application, restatement or reclassification has a material effect on the information in the statement of financial position at the beginning of the preceding period. IFRS 18 changes the statement of financial position only modestly, most notably by requiring goodwill to be presented as a separate line item, so the threshold is frequently not met. The assessment should still be performed and documented.
Common misconception
Retrospective application under IFRS 18 does not mean restating results. Profit for each comparative period is unchanged. What is restated is the route the statement takes to arrive at that profit, and the subtotals presented along the way.
Transition Reliefs
Appendix C of IFRS 18 provides a small number of transition provisions that reduce the burden of retrospective application.
Judgements are made at the date of initial application. Assessments such as whether the entity has specified main business activities, and the resulting classification policy choices, use the facts and circumstances existing at the date of initial application, and are then applied to the restated comparative period. The assessment is not re-performed as it would have been made in each historical period. This matters most for groups whose business model shifted during the comparative year.
Relief where classification would require hindsight. Relief is available from re-classifying certain comparative amounts where doing so would require hindsight, most relevantly for designated hedging instruments, where the classification of gains and losses follows the item being hedged. Where the relief is applied, the fact and the affected amounts are disclosed.
No relief from the reconciliation. There is no exemption from the transition reconciliation, and none from restating the comparative period. Impracticability under IAS 8 is a high threshold where the underlying transactions are already recognised and measured.
The planning assumption should therefore be a full restatement of the comparative period, supported by data captured during that period wherever possible.
The Transition Reconciliation Disclosure
In the annual reporting period in which IFRS 18 is first applied, an entity discloses, for each line item in the restated comparative statement of profit or loss, the amount previously presented under IAS 1 and the restated amount presented under IFRS 18.
Three features of the requirement drive the workload:
- It is line-item level, not category level. A summary explaining that finance costs were split between the financing and investing categories is not sufficient. Each presented line item must be traceable to what was previously reported.
- It requires the old presentation to be preserved. The comparative period must be capable of presentation on both bases simultaneously. Re-mapping the chart of accounts without retaining the prior mapping removes the source of the disclosure.
- It is a first-year requirement only. The reconciliation appears in the first annual financial statements applying IFRS 18 and in the interim reports within that first year. It does not recur.
The design implication is to build the comparative period as a mapping from the existing trial balance to the IFRS 18 line items, retaining both sides. The reconciliation is then an output of that mapping rather than a separate year-end deliverable.
Interim Reporting in the Year of Adoption
IAS 34 was amended alongside IFRS 18. Interim financial statements issued within the first annual period of application must:
- Present the IFRS 18 categories and required subtotals in the condensed statement of profit or loss.
- Re-present the comparative interim period on the same basis.
- Include the transition reconciliation for the comparative interim period.
- Disclose management-defined performance measures, consistent with the annual requirement.
For a 31 December year-end group, the first externally reported IFRS 18 numbers are therefore the June 2027 interims rather than the December 2027 annual report, and those interims require a restated June 2026 comparative.
Planning point
For half-yearly reporters, the effective deadline is the first interim announcement in the year of adoption, and the comparative required for it is a half-year that has already been reported. Plan the dry run against that date.
First-Time Adopters of IFRS
An entity adopting IFRS for the first time in a period beginning on or after 1 January 2027 applies IFRS 18 in its first IFRS financial statements, including to the comparative period and the opening statement of financial position at the date of transition to IFRS.
The IFRS 18 transition reconciliation is designed for entities moving from IAS 1 and adds little for an entity that has never presented IAS 1 financial statements. A first-time adopter instead presents the IFRS 1 reconciliations from previous GAAP against IFRS 18 line items and subtotals. Where the previous national GAAP prescribes a rigid income statement format, the categorisation work is more involved than a straight mapping, because prescribed formats rarely align with the operating, investing and financing distinction.
The Six Transition Workstreams
Each workstream below mirrors a part of the standard and is covered in depth in a dedicated article.
| Workstream | Transition requirement | Full detail |
|---|---|---|
| 1. Categorisation of income and expenses | Allocate every item of income and expense to the operating, investing, financing, income tax or discontinued operations category. The allocation depends on whether the entity has specified main business activities, such as investing in assets or providing financing to customers. | Income statement categories |
| 2. Required subtotals | Present operating profit or loss, and profit or loss before financing and income taxes. Quantify the divergence from the subtotals currently presented and briefed to the market. | IFRS 18 vs IAS 1 |
| 3. Analysis of operating expenses | Analyse operating expenses on the face of the statement by nature, by function or on a mixed basis. A function-based presentation triggers mandatory note disclosure of the specified nature amounts. | Analysis of operating expenses |
| 4. Management-defined performance measures | Identify measures used in public communications that convey management's view of performance, and disclose each with a reconciliation to the closest IFRS subtotal, including tax and non-controlling interest effects. | Management-defined performance measures |
| 5. Aggregation and disaggregation | Group items by shared characteristics, disaggregate where characteristics differ materially, and apply informative labels in place of generic "other" captions. | Aggregation and disaggregation |
| 6. Statement of cash flows | Apply the consequential IAS 7 amendments: the indirect method starts from operating profit or loss, and several classification options for interest and dividends are removed. | Cash flow statement changes |
Workstreams 1 and 3 sit on the critical path: the categorisation assessment determines the target statement format, and the nature-of-expense data is the longest-lead data requirement.
A Phased Transition Roadmap
The phasing below assumes a 31 December year-end and mandatory adoption in 2027. Entities with other year-ends shift the dates but keep the sequence; half-yearly reporters treat the first interim announcement as the go-live date.
| Phase | Indicative timing | Key deliverables |
|---|---|---|
| 1. Impact assessment | Complete by Q4 2026 | Main business activity assessment; high-level mapping of the current income statement to IFRS 18 categories; identification of data gaps; estimate of the divergence between the current and future operating profit subtotal |
| 2. Design | Q4 2026 to Q1 2027 | Target income statement format; nature or function decision with supporting rationale; aggregation and labelling policy; MPM inventory and proposed disclosures; accounting policy paper approved by the audit committee |
| 3. Build | Q1 to Q2 2027 | Chart of accounts and reporting hierarchy changes; mapping table retaining both the IAS 1 and IFRS 18 views; nature-of-expense tagging across function lines; consolidation system configuration |
| 4. Dry run | Q2 2027 | Full restatement of the 2026 comparative annual and half-year statements; draft transition reconciliation; auditor walkthrough; investor relations briefing pack |
| 5. Go live | H1 2027 interims onward | First externally reported IFRS 18 statements; transition reconciliation published; covenant and remuneration definitions confirmed or renegotiated |
The dry run should cover a full comparative year end to end rather than a sample of line items. Testing at that scale is what surfaces cost centres carrying no function tag, intercompany interest netted at consolidation, and acquired subsidiaries on separate ledgers that cannot produce the nature analysis.
Example: Restating a Comparative Period
Northbrook Manufacturing Ltd has a 31 December year-end and adopts IFRS 18 for the year ending 31 December 2027. Its comparative period is the year ended 31 December 2026, previously reported under IAS 1. The entity presents operating expenses by function and does not have specified main business activities.
Statement of profit or loss as previously presented under IAS 1
| Year ended 31 December 2026 | '000 |
|---|---|
| Revenue | 48,200 |
| Cost of sales | (29,400) |
| Gross profit | 18,800 |
| Distribution costs | (4,100) |
| Administrative expenses | (6,300) |
| Other operating income | 900 |
| Operating profit | 9,300 |
| Share of profit of associates | 620 |
| Finance income | 340 |
| Finance costs | (1,480) |
| Profit before tax | 8,780 |
| Income tax expense | (2,110) |
| Profit for the year | 6,670 |
Statement of profit or loss restated under IFRS 18
| Year ended 31 December 2026 (restated) | '000 |
|---|---|
| Revenue | 48,200 |
| Cost of sales | (29,400) |
| Gross profit | 18,800 |
| Distribution costs | (4,100) |
| Administrative expenses | (6,300) |
| Royalty income | 560 |
| Gain on disposal of property, plant and equipment | 340 |
| Operating profit | 9,300 |
| Share of profit of equity-accounted associates | 620 |
| Interest income on cash and cash equivalents | 340 |
| Profit before financing and income taxes | 10,260 |
| Interest on bank borrowings | (1,180) |
| Interest on lease liabilities | (300) |
| Profit before tax | 8,780 |
| Income tax expense | (2,110) |
| Profit for the year | 6,670 |
Profit for the year is unchanged at 6,670,000. Operating profit is also unchanged at 9,300,000, because Northbrook's previous operating profit already excluded associates and finance items. Where an entity previously presented investment income, associates or restructuring charges above its operating profit line, the restated subtotal will differ.
Transition reconciliation
| IFRS 18 line item (2026 restated) | '000 | Previously presented under IAS 1 | '000 | Nature of change |
|---|---|---|---|---|
| Royalty income | 560 | Other operating income | 900 | Disaggregated: the previous "other" caption combined two items with dissimilar characteristics |
| Gain on disposal of property, plant and equipment | 340 | |||
| Operating profit | 9,300 | Operating profit | 9,300 | Composition unchanged for this entity; subtotal now mandatory and defined by IFRS 18 |
| Share of profit of equity-accounted associates | 620 | Share of profit of associates | 620 | Reclassified into the investing category; relabelled to identify the measurement basis |
| Interest income on cash and cash equivalents | 340 | Finance income | 340 | Reclassified from finance income into the investing category |
| Profit before financing and income taxes | 10,260 | Not previously presented | — | New mandatory subtotal |
| Interest on bank borrowings | (1,180) | Finance costs | (1,480) | Disaggregated within the financing category to separate borrowings from lease liabilities |
| Interest on lease liabilities | (300) | |||
| Profit for the year | 6,670 | Profit for the year | 6,670 | No change |
Nature-of-expense note
Because Northbrook presents operating expenses by function, it discloses the specified nature amounts included in each function line item.
| Year ended 31 December 2026 ('000) | Cost of sales | Distribution costs | Administrative expenses | Total |
|---|---|---|---|---|
| Employee benefits | 8,400 | 1,250 | 3,100 | 12,750 |
| Depreciation of property, plant and equipment | 2,900 | 180 | 260 | 3,340 |
| Depreciation of right-of-use assets | 640 | 720 | 410 | 1,770 |
| Amortisation of intangible assets | — | — | 480 | 480 |
| Impairment losses on trade receivables | — | — | 210 | 210 |
| Inventory write-downs | 350 | — | — | 350 |
| Total specified nature items | 12,290 | 2,150 | 4,460 | 18,900 |
The disclosed amounts do not sum to total operating expenses of '39,800,000, because only the specified nature categories are disclosed. The 1,770,000 of right-of-use asset depreciation is typically the hardest line to produce, since lease schedules are maintained by lease rather than by the function the underlying asset supports.
Management-defined performance measure
Northbrook reports "adjusted operating profit" in its results announcements. The measure meets the definition of a management-defined performance measure and is disclosed and reconciled within the financial statements for both periods.
| Year ended 31 December 2026 | '000 |
|---|---|
| Operating profit (IFRS 18 subtotal) | 9,300 |
| Restructuring costs, included within administrative expenses | 1,150 |
| Adjusted operating profit | 10,450 |
| Income tax effect of the reconciling item | (288) |
| Effect attributable to non-controlling interests | — |
Common Transition Pitfalls
Starting after the comparative period has closed. Data that could have been tagged as it was posted must instead be reconstructed from cost centre analysis, supporting schedules and manual review.
Assuming the new operating profit equals the old one. Items previously presented within operating profit, such as investment income or the share of results of associates, move out of it, and items previously presented below it may move in. Quantify the difference during the impact assessment.
Overlooking covenants and remuneration. Banking covenants, earn-outs and long-term incentive plans that reference "operating profit", "EBIT" or an adjusted measure on a dynamic rather than frozen basis will produce different ratios without any change in performance.
Treating alternative performance measures as unaffected. Measures previously presented only in a results announcement, outside the audit scope, become management-defined performance measures inside the financial statements, with a required reconciliation and tax and non-controlling interest effects.
Underestimating the nature-of-expense analysis. Under a function-based presentation, producing the specified nature amounts across every function line is usually the longest-lead data requirement of the project.
Retiring the old mapping too early. The transition reconciliation and the first-year interim disclosures both require the comparative period on both bases.
Forgetting the interim requirements. Timetables anchored on the annual reporting date omit the first interim announcement, which for half-yearly reporters is the earlier deadline.
Ignoring the labelling discipline. IFRS 18 discourages "other" captions and expects informative labels supported by disaggregation in the notes where amounts are material.
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Conclusion
IFRS 18 transition is a presentation and disclosure exercise, not a remeasurement one. Profit for every period presented is identical before and after adoption. What changes is the structure of the primary statements, the subtotals presented, the granularity at which expenses are analysed, and the status of the performance measures management already reports to the market.
The retrospective requirement is what sets the timetable. Because the comparative period must be re-presented and reconciled line by line to the previously reported IAS 1 amounts, the effective start of a transition project sits a full financial year before the first IFRS 18 annual report — and earlier still for half-yearly reporters. Completing the main business activity assessment and the nature-or-function decision early enough to capture the comparative period's data as it is posted is what separates a mapping exercise from a reconstruction.
For clarification, guidance, or feedback on our article, please reach out to us at insight@leash.co.za.