IFRS 15 disclosure requirements exist to show how revenue really works in a business: the nature of the contracts, the timing of revenue, the judgments behind recognition, and the cash flow uncertainty that comes with it. In this guide, we’ll cover what IFRS 15 disclosure requirements ask for, where teams tend to get tripped up, and how to build disclosures that are clearer, more useful, and easier to defend. What IFRS 15 Requires Companies to Disclose At a high level, IFRS 15 wants financial statement users to understand: Where the revenue came from How the revenue breaks down What moved in contract balances What’s still sitting in unsatisfied performance obligations The judgment calls behind the numbers What it cost to get and keep the contract Let’s take a look at each of these points. Revenue from customer contracts Companies need to separate revenue from customer contracts from other revenue sources. They must also show impairment losses on receivables and contract assets tied to those contracts separately. Disaggregate revenue in a way that makes sense IFRS 15 gives example categories for disaggregation, including: Type of good or service Geography Customer type Contract type and duration Timing of transfer Sales channel The categories should reflect how the business is actually managed and discussed internally. Contract assets and contract liabilities This is often the first place auditors go. IFRS 15 requires opening and closing balances for contract assets, contract liabilities, and receivables from customer contracts, plus the amount of revenue recognized in the period that was included in the opening contract liability balance. The numbers also need context. If the balance moved because of a business combination, a change in transaction price, an impairment, or a contract modification, this should be noted. The best disclosures explain the movement in both words and numbers. Remaining performance obligations Companies also disclose the transaction price allocated to performance obligations that aren’t yet satisfied, along with when they expect to recognize that revenue. That gives users a clearer view of future revenue timing and visibility into the contract pipeline. Judgments behind the numbers IFRS 15 disclosures need to show judgment, not just outcomes. That means explaining how the company decided when performance obligations are satisfied, how it determined transaction price, and how it allocated that price. For revenue recognized over time, this also means naming the method used, output or input, and explaining why it reflects performance. Contract cost disclosures IFRS 15 requires companies to disclose amortization and impairment of capitalized contract costs by category, including acquisition costs, pre-contract costs, set-up costs, and fulfillment costs. This section is easy to overlook because it sits outside the headline revenue note. But it matters because it shows the real cost of winning and delivering the contract alongside the revenue it generates. IFRS 15 and ASC 606 The core disclosure structure under IFRS 15 and ASC 606 is largely aligned. Both standards ask for similar categories, similar judgments, and similar contract balance disclosures. The differences mostly show up in the details, including how each standard treats royalty-based variable consideration tied to IP licenses and certain disclosure relief available to private or nonpublic entities. See our ASC 606 vs. IFRS 15 comparison for a deeper breakdown. What IFRS 18 Changes IFRS 18 doesn’t change how revenue is recognized. IFRS 15 still governs that. But IFRS 18 does add new presentation and disclosure requirements, including around management-defined performance measures and how information is grouped in the statement of profit or loss. For teams that work with revenue data, that means presentation and traceability matter even more. IFRS 18 is effective for annual periods beginning on or after 1 January 2027, with early adoption permitted. Read our IFRS 18 guide for more. Common Disclosure Pitfalls The most common IFRS 15 Disclosure pitfalls include: Accounting policies copied from the standard instead of tailored to the entity Disaggregation that doesn’t reconcile to segment reporting Thin or missing contract cost disclosures Manual data collection across systems that don’t connect That last one is the real operational problem. The standard may be the same for everyone, but the process is often still stitched together by hand, which makes disclosure prep slower, harder to test, and more prone to inconsistency. Where Trullion Fits In Trullion’s platform centralizes contract data so disaggregation, contract balance roll-forwards, and remaining performance obligation figures all come from one traceable source. That gives finance teams a cleaner path from source contract to disclosure, without rebuilding the same numbers in a spreadsheet every quarter. It also makes audit support easier. When every disclosure figure links back to its source contract and journal entry, the review process gets streamlined. Trullion’s Revenue Recognition product connects contract data straight through to your ASC 606 and IFRS 15 disclosures, so the numbers you report are already traceable back to source. See how it works FAQs What are the main disclosure requirements under IFRS 15? The main IFRS 15 disclosure requirements cover disaggregated revenue, contract balances, remaining performance obligations, significant judgments, and capitalized contract costs. The goal is to explain the nature, amount, timing, and uncertainty of revenue from customer contracts. How does IFRS 15 disclosure differ from ASC 606 disclosure? The structure is broadly similar, but the details differ in a few areas, including how each standard treats royalty-based variable consideration and certain disclosure relief for private or nonpublic entities. Do private companies have to follow IFRS 15 disclosure requirements? If a private company reports under IFRS, yes, it generally needs to follow IFRS 15 disclosure requirements unless a different reporting framework applies. Will IFRS 18 change what companies disclose about revenue? Not directly. IFRS 18 doesn’t change revenue recognition, but it does add new presentation and disclosure requirements that can affect how revenue information is grouped and presented.