Subd. 5.Maintenance agreement. "Maintenance agreement" means a contract of limited duration that provides for scheduled maintenance only.Optional maintenance contracts provide prepaid coverage for things like scheduled oil changes and tire rotations. These contracts are taxable. Maintenance agreement. "Maintenance agreement" means a contract of limited duration that​ provides for scheduled maintenance only.​. Subd. 5a. Minnesota family law allows a court to order the other spouse to make payments for their support. This is separate from child support. A maintenance agreement outlines the steps one party will undertake to insure the upkeep, repair, serviceability of another party's property. Optional maintenance contracts provide prepaid coverage for scheduled oil changes, tire rotation, etc.