Calculation
Alabama: Alabama has no mandatory mathematical formula for alimony. Courts may award rehabilitative or periodic alimony only after finding that the requesting spouse lacks sufficient separate estate or resources to preserve, as much as possible, the economic status quo of the marriage; that the other spouse can pay without undue economic hardship; and that the circumstances make an award equitable. Rehabilitative alimony is preferred when feasible. Michigan: Conservative educational estimate based on need, ability to pay, income disparity, marriage length, marital standard of living, earning capacity, property division, health, age, and Michigan spousal-support factors; no mandatory statewide formula applies.
Duration
Alabama: Rehabilitative alimony is generally limited to 5 years absent extraordinary circumstances. Periodic alimony is generally limited to a period not exceeding the length of the marriage, unless the court finds deviation is equitably required. For marriages of 20 years or longer, there is no statutory time limit on eligibility for periodic alimony. If no alimony is awarded and jurisdiction is not reserved at the time of divorce, the court generally loses jurisdiction to later award rehabilitative or periodic alimony. Michigan: Michigan has no fixed statutory duration formula. The court may award support for a short rehabilitative period, a longer transition period, an indefinite period in appropriate long-marriage or disability cases, or no support. Duration depends on need, ability to pay, marriage length, earning capacity, age, health, property division, and equity. Support may terminate or be modified under the order, agreement, remarriage or cohabitation provisions if included, death, changed circumstances, or court order.
Modification
Alabama: Periodic alimony may generally be modified upon a material change in circumstances. Rehabilitative alimony may be modified before the end of its term when statutory standards are met, while alimony in gross is typically treated as a fixed property-like obligation. Michigan: Periodic alimony may generally be modified upon a substantial change in circumstances unless a judgment or agreement limits modification. Courts review changes affecting financial need, earning capacity, or ability to pay.