Md. Code, State Finance and Procurement § 6–217

The account that the Comptroller keeps for the Treasurer shall:

(1) charge the Treasurer with:

(i) the money that is in the State Treasury when a fiscal year begins; and

(ii) money that, on warrant, is paid into the State Treasury during the fiscal year; and

(2) credit the Treasurer with money that, on warrant, is paid from the State Treasury.