The outgoing Democratic governor said at a news conference in Philadelphia on Monday that collections in every major tax category came in above expectations.
He says the state collected a total of $2.3 billion in December, about 8.4 percent more than anticipated.
That marks an increase of 15.5 percent from December 2009.
Halfway through the fiscal year, he says the state has collected a total of $11.5 billion - or about 1.7 percent more than anticipated.
Rendell says incoming Gov. Tom Corbett, a Republican, will still have tough decisions to make when he takes office, considering rising costs related to corrections, pensions and Medicaid.