21. Deferred income
The deferred income of €645 million (2020: €562 million) consists mainly of amounts for student public transport passes in the Netherlands received in advance and season ticket payments received in advance in the United Kingdom and the Netherlands.
Measurement basis
This income concerns amounts received in a single payment under agreements with terms extending to future years. The income is credited to the income statement over the term of the agreements to which the income relates. The income is measured at amortised cost.