Deferred revenue is one of the few liabilities investors like to see grow. It means customers paid up front, which funds the business for free and signals committed demand. It converts to revenue as the obligation is met.
For subscription businesses it is an incomplete picture, because multi-year contracts are only partly billed. The fuller measure is remaining-performance-obligations, disclosed in the footnotes.
Example: Northwind Cloud collects $30M of annual subscriptions in January. On 31 March it has recognised $7.5M as revenue and still carries $22.5M of deferred revenue on the balance-sheet.
Related: revenue-recognition, remaining-performance-obligations, annual-recurring-revenue, liabilities, operating-cash-flow