DIVORCE 29: Spousal support in gross is non-modifiable, whereas periodic is subject to modification.
As the name implies, periodic spousal support payments are made on a periodic basis. Periodic spousal support payments are subject to any contingency, such as death or remarriage of a spouse, whereas spousal support in gross is paid as a lump sum or a definite sum to be paid in installments. In addition, one major difference between the two types of spousal support is modifiability. Spousal support in gross is non-modifiable, whereas periodic spousal support is subject to modification pursuant to MCL 555.28.1.