Monthly Economic Crisis Support Act This bill provides for a monthly rebate to individuals and their dependents for the period beginning March 2020, and ending on the third month after the date on which the Department of Health and Human Services determines that the COVID-19 (i.e., coronavirus disease 2019) public health emergency has ended. The rebate is $2,000 per individual ($4,000 for individuals filing a joint tax return) plus $2,000 for each dependent of such individual, not exceeding three dependents. The rebate is reduced for individuals whose adjusted gross income exceeds specified levels. Rebates are not subject to garnishment or set offs by financial institutions.