Step 5: Recognise revenue when (or as) the entity satisfies a performance obligation—an entity recognises revenue when (or as) it satisfies a performance obligation by transferring a promised good or service to a customer (which is when the customer obtains control of that good or service). The amount of revenue recognised is the amount allocated to the satisfied performance obligation. A performance obligation may be satisfied at a point in time (typically for promises to transfer goods to a customer) or over time (typically for promises to transfer services to a customer). For performance obligations satisfied over time, an entity recognises revenue over time by selecting an appropriate method for measuring the entity’s progress towards complete satisfaction of that performance obligation.

For more details visit IFRS 15 Revenue From Contracts With Customers