Disabled Veterans Education Relief Act of 2020 This bill addresses Department of Veterans Affairs (VA) assistance entitlements and subsistence allowances. Under the bill, an assistance payment for training and rehabilitation programs for veterans with service-connected disabilities shall not be charged against an individual's entitlement to such assistance if an individual was unable to complete a course or program due to the closure of an educational institution or disapproval of the course. The bill also authorizes the VA to continue to pay subsistence allowances for a specified amount of time during periods following the permanent closure of an institution or the disapproval of a course of study.