Michigan Alimony & Spousal Support (2026)
Unlike child support, Michigan has no fixed formula for how much alimony (spousal support) costs or how long it lasts. A judge decides both based on a list of factors set out in MCL § 552.23. There is no calculator that can honestly give you an exact number here — but the factors below are what actually drives the decision.
What determines alimony in Michigan
Under MCL § 552.23 (Michigan Compiled Laws § 552.23, as interpreted by the 'Sparks factors' (Sparks v. Sparks, 440 Mich. 141 (1992))), a court considers:
- Past relations and conduct of the parties
- Length of the marriage
- Ability of the parties to work
- Source and amount of property awarded to the parties
- Age of the parties
- Ability of the parties to pay alimony
- Present situation of the parties
- Needs of the parties
- Health of the parties
- Prior standard of living of the parties and whether either is responsible for the support of others
- Contributions of the parties to the joint estate
- General principles of equity
Good to know
- MCL § 552.23 itself is brief: it authorizes a court to award spousal support 'as the court considers just and reasonable' when the property division is insufficient for the suitable support of a party. It does not itself list factors or a formula.
- The detailed factor list actually applied by Michigan courts comes from case law — principally Sparks v. Sparks, 440 Mich. 141 (1992) — not from the statute's text. No single factor is controlling, and courts are not bound by any formula or worksheet; each of Michigan's circuit courts applies these factors independently on a case-by-case basis.
Also need a child support estimate?
Alimony and child support are calculated completely separately in Michigan. If you also have children, use our free Michigan child support calculator — that one does compute a real number, based on the official guideline formula.
Frequently asked questions
Is there an alimony formula in Michigan?
No. MCL § 552.23 lets a court award spousal support "as the court considers just and reasonable" without any formula. Michigan courts apply a set of factors from case law (the Sparks factors) rather than a calculation, so the amount and duration vary by judge and case.
What factors determine alimony in Michigan?
Under the Sparks factors, Michigan courts weigh the length of the marriage, each spouse's ability to work and pay, the parties' past conduct, ages, health, needs, present situation, the property awarded to each, prior standard of living, contributions to the marital estate, and general principles of equity.
Source: Michigan Compiled Laws § 552.23, as interpreted by the 'Sparks factors' (Sparks v. Sparks, 440 Mich. 141 (1992)) · Last verified 2026-07-22
Disclaimer: This page explains the general legal framework for alimony in Michigan and is for informational purposes only — it is not legal advice and does not predict the outcome of any specific case. Laws change; always verify with the official source above or a family law attorney licensed in Michigan before making decisions.