Former Finance Minister Carlos Leitao's reworking of the provincial government's fiscal workings has created an ever-growing windfall for his successor.

During his term in office the Liberal minister restrained and redirected spending for multiple governmental departments to get their annual increases under the rate of inflation.

It produced several budgetary surpluses during the Liberal regime, and now it's producing more money than the CAQ government has anticipated.

In March the CAQ said it was expecting a $2.5 billion surplus, but now it's predicting a surplus of up to $5.5 billion, despite an increase in CAQ spending of $1.66 billion.

The data comes from the Institut du Quebec and was obtained by La Presse prior to publication.

Ten days ago finance minister Eric Girard said he was expecting a surplus of $3.6 billion for 2018-2019.