One time revenue is money that you can't (or shouldn't) count on getting again. Estate tax is a good example of one time revenue because people only die once and then the family settles the estate. That's not going to happen every year. Another example is fund balance money left unspent at the end of the fiscal year, some call this cash on hand. We can't count on having the same amount for use in next year's budget.
There is one time revenue and there is also one time expenditure. I wanted the legislature to treat the ARRA money as one time revenue and use it for a one time expenditure, for something like the new state mental hospital or bridge repair or some other very expensive infrastructure need. If we had used the ARRA money for a one time need, and had reduced our ongoing expenditures, we'd be in better shape fiscally. Oh well.........water over the dam.
from, C.