Accruing

verb

1. To increase, to rise
2. To reach or come to by way of increase; to arise or spring up because of growth or result, especially as the produce of money lent.
3. To be incurred as a result of the passage of time.

   "The monthly financial statements show all the actual but only some of the accrued expenses."

4. To accumulate

   "He has accrued nine sick days."

5. To become an enforceable and permanent right.