Spousal support (alimony) can be modified after a divorce has been finalized when there is a significant change in circumstances for either party. Common situations include a substantial change in income—such as job loss, promotion, or retirement—by either the paying or receiving spouse. Alimony may also be modified if the receiving spouse becomes self-supporting or remarries, or if the paying spouse becomes unable to meet the obligation due to illness or disability. In some cases, changes in the cost of living or the needs of the supported spouse (e.g., new medical expenses) can also justify a modification.

However, whether modification is allowed depends on the original divorce agreement or court order—some settlements include a non-modifiable clause, meaning alimony cannot be changed regardless of circumstances. Courts will review requests for modification carefully and require evidence to support the claimed change in circumstances.