Key Takeaways
- Expenses are recognised when the related revenue is earned, not when the supplier invoice arrives or cash leaves the bank.
- The IFRS Conceptual Framework no longer treats matching as a standalone principle but retains the logic under the accrual basis.
- Year-end mismatches between revenue and cost of sales commonly produce audit adjustments of 1% to 4% of reported gross profit on mid-market engagements.
- Incorrect cut-off on accrued expenses is the most frequent matching failure auditors encounter.
What is Matching Principle?
The matching principle has deep roots in financial reporting, although IFRS does not use the label explicitly. The Conceptual Framework (paragraph 5.5) states that recognising certain expenses simultaneously with the associated revenue is sometimes described as "matching," and it permits this treatment when expenses arise directly and jointly from the same transactions or events as the revenue. IAS 2.34 applies this directly to inventories: the carrying amount of inventory sold is recognised as cost of sales in the period the related revenue is recognised.
In practice, matching means the auditor tests whether costs booked in a period belong to that period's revenue. When a company ships goods in December but records the associated freight cost in January, the income statement misstates both gross margin and operating expenses. ISA 330.A53 directs auditors to apply substantive cut-off procedures at the boundary between periods, and matching failures sit precisely on that boundary. The auditor's work on accounts payable completeness and cost of sales cut-off is, in substance, a test of whether the matching logic holds.
Two areas demand particular attention. Commission costs tied to specific sales contracts require recognition in the same period as the sale under IFRS 15.91. Deferred costs (such as contract fulfilment costs under IFRS 15.95) must be amortised on a basis consistent with the pattern of revenue transfer.
Worked example: Henriksen Shipping A/S
Client: Danish maritime logistics company, FY2025, revenue EUR 140M, IFRS reporter. Henriksen provides container freight services across Northern European routes. Voyage revenue is recognised over time as the shipping service progresses. The company's finance team allocates voyage costs (bunker fuel, port charges, crew expenses, and canal fees) to each voyage based on the percentage-of-completion at the reporting date.
Step 1 — Identify voyages in progress at 31 December 2025
Fourteen voyages are in progress on the reporting date. Combined expected revenue for these voyages is EUR 4.2M. The auditor obtains voyage profit-and-loss schedules from the operations department and compares the percentage-of-completion calculations to GPS tracking data and bunker fuel consumption records.
Step 2 — Test matching of voyage costs to recognised revenue
For the 14 voyages, Henriksen has recognised EUR 2.9M in revenue (based on percentage-of-completion) and EUR 2.3M in voyage costs. The auditor recalculates the cost allocation independently. For voyage HK-1247 (Rotterdam to Copenhagen, 60% complete), the company recognised EUR 210,000 in revenue but only EUR 148,000 in costs. The missing EUR 24,000 relates to bunker fuel consumed before year-end but invoiced in January 2026.
Step 3 — Evaluate the aggregate mismatch
Across all 14 voyages, the auditor identifies EUR 58,000 in voyage costs that were consumed before year-end but not yet recognised. Overall materiality is EUR 2.1M; performance materiality is EUR 1.4M. The EUR 58,000 is below performance materiality individually. The auditor adds it to the summary of uncorrected misstatements per ISA 450.A5 and assesses cumulative misstatements.
Conclusion: the matching of voyage costs to percentage-of-completion revenue is defensible for 13 of 14 voyages, and the EUR 58,000 understatement on voyage HK-1247 (with minor contributions from two other voyages) has been recorded on the summary of uncorrected misstatements with supporting consumption evidence.
Why it matters in practice
- Auditors on wholesale and manufacturing engagements sometimes test cost of sales as a ratio to revenue (gross margin analytical review) without performing cut-off procedures on the underlying cost accruals. ISA 520.5 allows analytical procedures as substantive evidence, but ISA 330.A53 still requires cut-off testing at the period boundary when the risk of misstatement relates to transaction timing. A stable gross margin does not prove that costs are matched to the correct period.
- Teams frequently overlook deferred contract costs under IFRS 15.95 when testing matching. If the entity capitalises incremental costs of obtaining a contract (such as sales commissions), the amortisation period must align with the pattern of revenue transfer. Misalignment between the amortisation schedule and the revenue recognition profile creates a matching failure that affects both the balance sheet and the income statement.
Matching principle vs. accrual accounting
| Dimension | Matching principle | Accrual accounting |
|---|---|---|
| Scope | Addresses the timing relationship between specific expenses and the revenues they generate | Addresses the timing of all transaction recognition relative to cash flows |
| IFRS status | Described as a consequence of accrual accounting, not a standalone requirement (Conceptual Framework 5.5) | Mandatory basis of preparation under IAS 1.27 |
| Primary application | Cost of sales, contract fulfilment costs, commission amortisation, and deferred contract costs | All assets, liabilities, income, and expenses |
| Audit focus | Cut-off testing on direct costs to verify they sit in the correct period alongside revenue | Completeness of period-end accruals for all transaction types |
Matching is a subset of accrual accounting, not a separate system. An entity can apply accrual accounting without explicit matching (for example, period costs like rent are accrued but not matched to specific revenue). The auditor encounters matching as a distinct concern primarily when testing cost of sales cut-off on engagements with long production cycles, percentage-of-completion contracts, or capitalised contract costs.
Related terms
Frequently asked questions
Does IFRS still require matching of expenses to revenues?
The IFRS Conceptual Framework (paragraph 5.5) acknowledges matching as a consequence of applying the accrual basis but does not treat it as a separate recognition criterion. Expenses are recognised when they arise directly from the same transactions as the associated revenue. The practical effect is the same: costs of goods sold are recognised in the period the related revenue is recognised per IAS 2.34.
How do I test matching during a year-end audit?
Select transactions near the cut-off date and verify that both the revenue and the associated direct costs are recorded in the same period. ISA 330.A53 directs cut-off procedures to the boundary between adjacent periods. For inventory-based businesses, trace goods dispatched before year-end to both the revenue ledger and the cost of sales account. For service businesses, confirm that costs incurred on contracts in progress at year-end are accrued in line with the percentage of revenue recognised.
Does the matching principle apply to operating expenses that are not directly linked to revenue?
Expenses that cannot be directly associated with specific revenue (such as rent or administrative salaries) are recognised in the period they are incurred, not matched to particular revenue transactions. The Conceptual Framework (paragraph 5.6) distinguishes between expenses recognised simultaneously with related revenue and expenses recognised in the period of incurrence when no direct revenue link exists.