Colorado Alimony (Spousal Maintenance) Calculator
By Attorney Charles E. Liken Jr., Colorado court-appointed Child and Family Investigator. Estimate spousal maintenance (alimony) under Colorado's advisory guideline (C.R.S. § 14-10-114) — amount and duration, free and instant.
Charles E. Liken Jr., Esq. — On the Legal Front Lines · Former Government Investigator, Denver Human Services · Licensed Colorado Attorney · 20+ Years in Private Practice · Former Colorado Deputy District Attorney · Colorado Court-Appointed Child and Family Investigator
Colorado Spousal Maintenance Calculator
For marriages of at least three years, Colorado gives judges an advisory guideline (C.R.S. § 14-10-114(3)(b)): take 40% of the spouses' combined monthly adjusted gross income and subtract the lower earner's monthly adjusted gross income (if the result is negative, the guideline amount is zero). If the maintenance is not tax-deductible for the payor (generally the case for orders entered after 2018; ask your tax professional), the result is reduced to 80% when combined income is $10,000 a month or less, or to 75% when it is more than $10,000 and up to $20,000. Above $20,000 a month ($240,000 a year) the amount formula does not apply. The guideline term comes from a statutory table based on the length of the marriage in whole months.
Estimate only. Colorado's maintenance guideline (C.R.S. § 14-10-114) is advisory: judges may award more, less, or nothing based on the statutory factors. The amount formula applies only to marriages of at least three years with combined adjusted gross income up to $240,000 a year; above that, the court sets the amount from the factors in § 14-10-114(3)(c) and may still consider the guideline term (§ 14-10-114(3.5)). For marriages longer than 20 years, the court may set a specific term or an indefinite term, but not a term shorter than the 20-year guideline term (120 months) without specific findings (§ 14-10-114(3)(b)(II)(A)). The term table used here is the Maintenance Duration Table from the El Paso County (4th Judicial District) form FCF 425, which follows the advisory term table in C.R.S. § 14-10-114(3)(b)(II). This is not legal advice. For a realistic read on your case, book a no-charge 20-minute call with Attorney Liken.
One Colorado alimony formula, every county
Colorado's spousal maintenance guideline comes from a state statute, C.R.S. § 14-10-114, so this calculator uses the same formula whether your case is filed in Denver, Aurora, Lakewood, Centennial, Westminster, Boulder, Longmont, Greeley or anywhere else in Colorado. What changes from courtroom to courtroom is how a judge weighs the statutory factors, and that is where the facts of your marriage matter.
The calculator shows the guideline amount and term; the court decides whether to award maintenance at all. For the guideline in detail, read Colorado's 2026 maintenance guideline, or see spousal maintenance for how Attorney Liken handles these cases.
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