extrabudgetary

Extrabudgetary describes funds, expenditures, or activities that fall outside an organization's official budget.

In government and institutional contexts, extrabudgetary resources often come from special fees, grants, or dedicated revenue streams that aren't part of the regular appropriations process.

The agency relied on extrabudgetary funding to complete the emergency repairs.

The term sometimes carries a whiff of concern, as extrabudgetary spending can escape normal oversight and accountability mechanisms.