This bill significantly streamlined the modification of alimony, particularly regarding retirement and income changes. The law explicitly codifies that a payor’s retirement can serve as grounds for modification, with the burden of proof initially on the payor to demonstrate that the retirement reduced their ability to pay. 

Key Modification Rules 

• Retirement Standards: Modification petitions can be filed up to six months before anticipated retirement.  Courts use the Social Security normal retirement age or the customary retirement age for the payor’s profession as benchmarks.
• Income Caps: For new cases (filed or pending after July 1, 2023), durational alimony is capped at the lesser of the recipient’s reasonable need or 35% of the net income difference between spouses. 
• Duration Limits: Durational alimony is now strictly time-limited based on marriage length: 50% for marriages under 10 years, 60% for 10–20 years, and 75% for marriages over 20 years. 
• Pre-2023 Agreements: Existing orders are not retroactively changed but can be modified if there is a substantial change in circumstances, such as retirement, disability, or the recipient entering a supportive relationship. 
• Types of Support: Permanent alimony has been eliminated for new awards.  Available forms now include temporary, bridge-the-gap (max 2 years, non-modifiable), rehabilitative (max 5 years), and durational alimony.