Wade MacLauchlan says the rules will also apply to deputy ministers and senior advisers.
He says the documents will be posted online and will include a detailed breakdown of when, where and why the money was spent.
It's the latest move by the Liberal government to improve transparency and accountability among politicians and senior bureaucrats.
Earlier this month, MacLauchlan said the province would soon have new conflict-of-interest regulations for deputy ministers and senior political advisers.
MacLauchlan says there will also be new restrictions on how long deputy ministers and advisers will have to wait before they can take jobs with firms that do business with the government.
"Prince Edward Islanders are understandably concerned about the need to live within our means, and elected officials and senior advisers must lead by example," he said in a statement on Thursday.Suggest a correction