Michigan schools got about a 3% boost in funding under the state budget passed last month in Lansing, but a new report says that might not be sustainable.
The non-partisan Citizens Research Council of Michigan says the extra money could be wiped out after next year.
Bob Schneider is the group's state affairs director.
"Unless we find new revenue growth that isn't anticipated yet, or the state draws upon additional general fund resources, or other resources to bring them into the School Aid Budget, the K-12 schools are looking to potentially have to give back a good chunk of the gains that they've made."
The report projects a budget shortfall of about $240 million for the School Aid Budget in the 2014-2015 fiscal year.
Schneider says that's partly because of additional state spending commitments to things like teacher retirement and early childhood education.