Calculation
Florida: Florida no longer awards permanent alimony for initial petitions governed by the current statute. Courts may award temporary, bridge-the-gap, rehabilitative, or durational alimony only after making specific factual findings that the requesting spouse has actual need and the other spouse has ability to pay. Durational alimony is capped at reasonable need or 35% of the parties' net-income difference, whichever is less. North Dakota: North Dakota does not use a mathematical formula for spousal support amount, but current law provides statutory threshold findings and duration limits. The court may not award permanent spousal support. It may award limited-term support only if the recipient lacks sufficient property or income to meet reasonable needs considering the marital standard of living, and the payor can provide support without undue economic hardship.
Duration
Florida: Florida classifies marriages as short-term if less than 10 years, moderate-term if 10 to less than 20 years, and long-term if 20 years or more. Bridge-the-gap alimony may not exceed 2 years. Rehabilitative alimony may not exceed 5 years and requires a specific rehabilitative plan. Durational alimony may not be awarded after a marriage lasting less than 3 years. Durational alimony may not exceed 50% of a short-term marriage, 60% of a moderate-term marriage, or 75% of a long-term marriage, except under exceptional circumstances proven by clear and convincing evidence. North Dakota: North Dakota duration limits are tied to marriage length unless the court makes written findings that deviation is necessary. For marriages under 5 years, support is generally up to 50% of the marriage length. For 5 to 10 years, up to 60%. For 10 to 15 years, up to 70%. For 15 to 20 years, up to 80%. For 20 years or more, duration is as agreed by the parties or for a limited time determined by the court. Support generally terminates on the recipient's remarriage or death unless otherwise agreed, may terminate for qualifying cohabitation, and has a rebuttable retirement-age termination presumption.
Modification
Florida: Most alimony awards may be modified upon a substantial, material, and unanticipated change in circumstances. The party requesting modification must demonstrate that the statutory standard has been satisfied. North Dakota: Rehabilitative support may be modified if a material change in circumstances occurs during the rehabilitative period. General term support may be modified upon a material change in circumstances, while lump-sum support is not modifiable after judgment.