For finance leaders across the Kingdom of Saudi Arabia, IFRS 18 represents a significant presentation and reporting change that should be reflected in the chart of accounts well before the mandatory effective date. A structured review with an IFRS advisory firm Saudi Arabia can help organizations identify accounts that require restructuring, additional dimensions, or improved mapping. IFRS 18 replaces IAS 1 for annual reporting periods beginning on or after 1 January 2027, making 2026 a critical implementation year for KSA entities.

IFRS 18 and Its Importance for KSA Entities

IFRS 18 Presentation and Disclosure in Financial Statements introduces important changes to the presentation of financial performance, particularly the statement of profit or loss. The standard establishes defined categories for income and expenses, introduces specified subtotals, strengthens requirements around management defined performance measures, and provides enhanced principles for aggregation and disaggregation.

For KSA organizations, the accounting implications extend beyond financial statement preparation. The chart of accounts is the foundation for transaction classification, reporting, consolidation, management reporting, budgeting, tax analysis, and financial statement mapping.

A chart of accounts designed primarily for historical reporting may not contain sufficient information to distinguish operating, investing, financing, income tax, and discontinued operation items consistently.

SOCPA has formally included IFRS 18 within the Saudi framework of endorsed international financial reporting standards. This means organizations preparing general purpose financial statements under the Saudi endorsed IFRS framework should assess IFRS 18 requirements as part of their implementation planning.

The IFRS Foundation’s 2026 materials confirm that IFRS 18 has an effective date of 1 January 2027, with earlier application permitted.

Why the Chart of Accounts Must Change

IFRS 18 is not simply a financial statement formatting exercise. Many presentation requirements depend on how income and expenses are classified and aggregated.

If a general ledger contains broad accounts such as administrative expenses, other income, finance costs, or investment income without adequate supporting dimensions, finance teams may need extensive manual analysis at every reporting period.

A properly redesigned chart of accounts can make classification systematic rather than dependent on spreadsheet adjustments.

For KSA organizations, this is particularly relevant where the same accounting system supports statutory reporting, management reporting, consolidation, budgeting, and operational analytics.

An IFRS advisory firm Saudi Arabia can assist with creating a future state account structure that supports IFRS 18 while preserving operational reporting requirements.

1. Create Clear Operating Expense Account Groups

The first change should be a detailed review of operating expense accounts.

IFRS 18 requires entities to present operating expenses using a method based on either the nature of expenses, the function of expenses, or a combination where appropriate.

A traditional account structure may group too many costs into broad categories. For example, an account called general administrative expenses may contain salaries, depreciation, technology costs, professional services, utilities, and other items.

Under a more IFRS 18 focused structure, these costs should be distinguishable at the ledger level where necessary.

Organizations should consider separate account groups for employee benefits, depreciation, amortization, professional services, occupancy costs, technology expenses, marketing expenses, and other significant operating costs.

The objective is not to create thousands of unnecessary accounts. The objective is to capture information at the level needed for reliable presentation and disclosure.

2. Separate Investing Income and Expenses

The second major change involves investing activities.

IFRS 18 introduces defined categories that influence where income and expenses appear in the statement of profit or loss. Therefore, income and expenses associated with investments should be identifiable within the chart of accounts.

KSA entities may have income from investments, gains or losses on investments, fair value movements, and related expenses. If these amounts are currently recorded within generic other income or other expense accounts, classification may become difficult.

A dedicated investing account hierarchy can distinguish investment income, investment related expenses, fair value gains and losses, and other relevant movements.

This approach creates a stronger audit trail and reduces dependence on manual reclassification.

3. Rebuild Financing Related Accounts

Financing income and expenses should also receive greater attention.

Interest expense, financing charges, lease related amounts, borrowing costs, and other financing components may currently be distributed across different account groups.

IFRS 18 requires classification based on the nature of activities and the entity’s specified main business activities where relevant. Therefore, a generic finance cost account may not always provide sufficient information.

Finance teams should review accounts for:

1. Interest expense
2. Interest income
3. Borrowing related charges
4. Lease related financing components
5. Foreign exchange effects associated with financing
6. Other financing income and expenses

Organizations should also establish accounting policies explaining how these accounts are mapped into the relevant IFRS 18 categories.

4. Introduce Dedicated Income Tax Accounts

Income tax classification requires additional attention under IFRS 18.

KSA entities may have specific local tax, zakat, withholding tax, and other statutory considerations. These items should not simply be combined in one broad tax account.

A more structured chart should distinguish income tax expense, current tax, deferred tax, and other statutory charges according to their applicable accounting treatment.

This area is particularly important because the IASB continued examining IFRS 18 related tax presentation matters during 2026. In July 2026, the IASB tentatively decided to propose changes concerning certain government imposed tax charges that directly substitute for income taxes. 11 of 12 participating IASB members supported the relevant decisions.

Therefore, KSA organizations should design tax accounts with sufficient flexibility rather than creating a rigid structure based only on today’s interpretation.

5. Add Accounts for Discontinued Operations

Discontinued operations should be separately identifiable within the accounting architecture.

A common problem occurs when an organization disposes of a business unit but continues recording its income and expenses using the same accounts as continuing operations.

IFRS reporting requirements require appropriate presentation and disclosure of discontinued operations. A chart of accounts supported by business unit, legal entity, and reporting dimensions can make this separation more efficient.

Organizations should consider whether their ERP system can identify transactions associated with a disposal from the beginning of the relevant reporting period.

Creating dedicated account ranges is not always necessary. In many cases, an additional reporting dimension can provide better flexibility.

6. Create Dimensions for Main Business Activities

One of the most important implementation considerations is identifying an entity’s main business activities.

IFRS 18 contains specific classification requirements that can depend on the nature of an entity’s main business activities. This can be particularly relevant for entities involved in financing, investment, leasing, or other specialized activities.

The chart of accounts should therefore work together with dimensions such as business activity, segment, legal entity, cost center, and transaction type.

For example, an organization involved in both operating activities and financing activities may need account attributes that allow income and expenses to be classified consistently.

An IFRS advisory firm Saudi Arabia can help map these dimensions to the organization’s business model and reporting requirements.

7. Establish Dedicated Accounts for Management Defined Performance Measures

IFRS 18 introduces enhanced disclosure requirements for management defined performance measures.

Management frequently uses adjusted operating profit, adjusted EBITDA, recurring profit, or similar measures in investor presentations and internal reporting. These measures can involve adjustments that are not directly visible from the existing general ledger.

The chart of accounts should therefore identify significant income and expense components used in management defined performance measures.

This does not mean creating an account for every management metric. Instead, organizations should create consistent account attributes and mapping rules that allow adjustments to be traced back to source transactions.

During 2026, the IFRS Interpretations Committee considered several IFRS 18 questions concerning management defined performance measures, including public communications and hypothetical income and expenses.

This demonstrates why organizations should treat management performance measures as part of the implementation project rather than as a disclosure exercise performed at year end.

8. Improve Account Mapping for Required Subtotals

IFRS 18 introduces defined subtotals, including operating profit and profit before financing and income taxes.

The chart of accounts should therefore support direct and consistent mapping into these subtotals.

A useful implementation approach is to create an IFRS 18 mapping table containing:

1. General ledger account
2. Account description
3. IFRS 18 category
4. Statement line
5. Subtotal classification
6. Nature or function classification
7. Management reporting category
8. Disclosure requirement
9. Responsible finance owner
10. ERP mapping rule

This mapping should be tested using historical transactions.

For example, organizations can take 12 months of 2026 general ledger data and perform a transaction level classification exercise. This can reveal accounts that cannot be automatically classified under the new reporting structure.

9. Strengthen Nature and Function Expense Attributes

Organizations that present operating expenses by function should ensure that the underlying ledger contains sufficient information about expense nature.

This becomes important because IFRS 18 requires additional information when expenses are presented by function.

For example, cost of sales may contain employee benefits, depreciation, amortization, and other expense types. If the accounting system cannot identify these components reliably, disclosure preparation may become highly manual.

The solution may involve additional account attributes rather than a complete redesign of the account numbering system.

For example, a single expense account could carry attributes for natural expense type, functional department, business unit, and IFRS classification.

This provides greater analytical value while limiting unnecessary account proliferation.

10. Introduce an IFRS 18 Reporting Layer

The final and most strategic change is to establish a reporting layer that connects the general ledger with IFRS 18 financial statement presentation.

The objective should be to avoid changing the operational chart of accounts every time a reporting requirement changes.

A reporting layer can contain standardized mappings between local accounts and IFRS presentation categories.

For KSA organizations with multiple subsidiaries, this approach is especially useful. Different entities may have different local account structures while still reporting into one consolidated IFRS 18 structure.

A reporting layer can also support automated reconciliation, consolidation, disclosure preparation, and audit evidence.

The 2026 IFRS Accounting Taxonomy remains the 2025 taxonomy for 2026 reporting, with the next annual taxonomy scheduled for the first quarter of 2027. This provides an additional reason for finance teams to consider digital reporting and taxonomy mapping as part of their broader implementation program.

2026 IFRS 18 Implementation Priorities for KSA

With the mandatory effective date approaching on 1 January 2027, KSA organizations have a limited implementation window.

A practical 2026 program can be divided into four phases.

Phase 1: Diagnostic Review

Review the existing chart of accounts, reporting dimensions, management reporting, consolidation process, and financial statement mappings.

Analyze at least 12 months of historical transactions to identify accounts requiring reclassification.

Phase 2: Future State Design

Design the IFRS 18 account hierarchy and supporting dimensions.

The design should identify operating, investing, financing, income tax, and other relevant classifications.

It should also document the treatment of management defined performance measures.

Phase 3: System Configuration

Update ERP mappings, reporting rules, account attributes, consolidation mappings, and reporting templates.

Testing should include multiple reporting periods and material transaction types.

Phase 4: Parallel Reporting

Where practical, organizations should perform parallel reporting before the mandatory effective date.

A useful target is to compare at least 2 reporting structures: the existing presentation and the IFRS 18 aligned presentation.

Differences should be documented and reviewed by finance leadership and external assurance teams.

Quantitative Impact Assessment for Finance Teams

IFRS 18 implementation should be managed using measurable indicators.

Organizations can establish targets such as:

1. 100% of material general ledger accounts mapped to IFRS 18 categories
2. 12 months of historical transactions tested
3. 2 reporting structures compared during parallel testing
4. 0 unexplained reconciliation differences before final reporting
5. 4 implementation phases covering diagnostic review, design, configuration, and parallel reporting

These figures are implementation targets rather than requirements imposed by IFRS 18. They provide management with a practical framework for monitoring readiness.

The value of such metrics is particularly high during 2026, because unresolved account mapping issues can become significantly more expensive once the organization enters its first IFRS 18 reporting cycle.

KSA Specific Considerations

Saudi organizations should also consider the relationship between IFRS 18 and the wider Saudi financial reporting environment.

SOCPA’s current published materials confirm the continuing endorsement framework for international standards in Saudi Arabia. SOCPA also maintains current updates relating to international standards and related developments. 

Organizations should therefore distinguish between the international standard as issued and the version endorsed for application in Saudi Arabia.

This is especially important for large groups, regulated entities, entities with foreign subsidiaries, and organizations preparing consolidated financial statements.

An IFRS advisory firm in Saudi Arabia can support this process by combining technical IFRS analysis with local implementation considerations, system mapping, documentation, and financial statement preparation.

Common Chart of Accounts Mistakes to Avoid

Several mistakes can undermine IFRS 18 implementation.

First, organizations should avoid simply renaming existing accounts. IFRS 18 requires classification and disclosure changes that may require additional data attributes.

Second, organizations should avoid creating excessive accounts. A chart containing thousands of new accounts can become difficult to maintain.

Third, finance teams should not rely entirely on year end spreadsheets. Manual classification increases the risk of inconsistency.

Fourth, management reporting should not be designed separately from statutory reporting. IFRS 18 specifically increases the importance of understanding how management performance measures relate to financial statement information.

Finally, organizations should not wait until 2027 to begin testing. The 2026 reporting cycle provides valuable historical data for identifying classification gaps.

Building an IFRS 18 Ready Chart of Accounts

The most effective IFRS 18 chart of accounts is not necessarily the largest or most complicated structure. It is the structure that captures the information needed to classify transactions accurately and consistently.

For KSA organizations, the redesign should focus on operating expense detail, investing activities, financing activities, tax accounts, discontinued operations, main business activities, management defined performance measures, subtotal mapping, nature and function attributes, and an integrated reporting layer.

The IFRS Foundation’s 2026 standard materials confirm that IFRS 18 is scheduled for application from 1 January 2027, while the IASB continues addressing implementation questions during 2026.

This makes 2026 the appropriate period for finance departments to move from awareness to execution. A well designed chart of accounts can reduce manual adjustments, strengthen auditability, improve management reporting, and create a scalable foundation for IFRS 18 compliant financial statements.

For KSA finance leaders, working with an IFRS advisory firm Saudi Arabia can provide additional technical support in assessing the current chart of accounts, developing the target structure, validating classifications, and preparing the organization for the first IFRS 18 reporting cycle.