Colorado Long-Term Spousal Support Laws
How Long-Term Spousal Support Works in Colorado
Long-term spousal support in Colorado is decided at your permanent orders hearing, not while your divorce is pending. For marriages of three to twenty years, Colorado uses an advisory formula that sets both an amount and a fixed duration. For marriages longer than twenty years, the court has discretion to award maintenance for a specified term or for an indefinite period with no preset end date.[1]
This is a different determination than the support ordered while a case is pending, which only covers the period before the decree and does not create any presumption about what happens at final orders.
Understanding the duration formula, and when a court can go beyond it, shapes what you should expect and what you can realistically negotiate toward.
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The Advisory Duration Formula for Marriages Up to Twenty Years
For marriages of at least three years, with combined annual adjusted gross income of $240,000 or less, Colorado’s advisory guideline sets a maintenance term based on a percentage of the marriage length in months.[1] The percentage starts at 31 percent at 36 months of marriage and increases by 0.165 percentage points for every additional month, capping at 50 percent once the marriage reaches 150 months, or 12.5 years.
- 3-year marriage: roughly 31 percent of the marriage, or about 11 months.
- 5-year marriage: roughly 35 percent, or about 21 months.
- 10-year marriage: roughly 45 percent, or about 54 months.
- 12.5 to 20-year marriage: 50 percent of the marriage length, the maximum the formula produces.
The formula is advisory, not mandatory. A judge can order more or less than the guideline amount or term if the facts support a deviation, and either spouse can present evidence pushing the result in either direction.
Indefinite Maintenance for Marriages Over Twenty Years
Once a marriage passes the twenty-year mark, the guideline table no longer applies. The court may instead award maintenance for a specified term of years or for an indefinite term with no fixed end date.[1]
Colorado law also protects the floor: a judge cannot set a maintenance term shorter than what the guidelines would produce for a full twenty-year marriage, unless the court makes specific findings supporting a reduced term.[1] That protection exists specifically because long marriages carry a different set of economic realities than shorter ones.
Indefinite Doesn’t Mean Permanent: An indefinite maintenance order has no preset end date, but it is not a guarantee of lifetime payments. It still ends automatically on the death of either spouse or the remarriage of the recipient, and it still remains open to modification if circumstances change substantially. Indefinite describes the term, not a promise about the outcome.
What Shapes the Amount and Term Beyond the Formula
In long marriages, a handful of factors tend to carry more weight than they do in shorter ones: each spouse’s age and health, non-economic contributions like homemaking and supporting a spouse’s career, and the standard of living the household built over decades.[1]
Since August 2025, Colorado courts must also consider whether a spouse engaged in domestic violence, coercive control, economic abuse, litigation abuse, emotional abuse, physical abuse, or unlawful sexual behavior against the other spouse when deciding maintenance.[3] This change means a survivor’s maintenance case is no longer evaluated on income numbers alone, and a spouse should not be ordered to support the person who harmed them.
How Long-Term Support Ends or Changes
Unless the decree or a written agreement says otherwise, maintenance terminates automatically when either spouse dies or when the spouse receiving support remarries.[2] Cohabitation alone does not trigger automatic termination, though it can support a motion to modify.
Modifying an existing order requires a showing of changed circumstances so substantial and continuing that the current terms have become unfair, such as a significant income change, job loss, retirement, or disability.[2] Spouses can also agree to make maintenance non-modifiable, in which case the court has no authority to change it regardless of what happens later.
The Colorado Supreme Court is currently reviewing how specific a separation agreement’s language must be to override the default termination-on-remarriage rule. Until that case is decided, vague non-modification language carries more risk than it used to, and precise drafting matters more than ever for anyone negotiating a long-term support agreement now.
If your marriage lasted twenty years or longer, do not assume the standard formula applies to your case, it does not. Talk to a family law attorney before you agree to a term or amount based on assumptions that only hold true for shorter marriages.
How Johnson Law Group Can Help
Long-term support cases involve more moving pieces than the formula alone: earning capacity built over decades, retirement timing, and property distribution that interacts directly with the maintenance number. Colorado spousal support law gives courts real discretion once a marriage passes twenty years, and how you present the record shapes how that discretion gets used.
Our client portal keeps you informed at every stage, from the first financial disclosure to the final order. Acting as your North Star through a long-marriage case means giving you a realistic, honest read on where the formula ends and judicial discretion begins.
Serving families across Colorado, we bring big-firm experience in complex, long-marriage maintenance cases to a boutique setting built around direct access to your attorney.
Frequently Asked Questions
How long does long-term spousal support last in Colorado?
For marriages of 12.5 to 20 years, the advisory formula sets the term at 50 percent of the marriage length. For marriages over 20 years, the court can set a specific term or award maintenance indefinitely, with no formula controlling the outcome.
Does being married more than 20 years guarantee permanent alimony?
No. It gives the court discretion to award an indefinite term, but the judge still has to weigh the statutory factors. Some long marriages result in a specified term rather than an indefinite one, depending on the facts.
Can long-term spousal support be modified later?
Yes, unless the spouses agreed in writing that it is non-modifiable. Modification requires a substantial and continuing change in circumstances that makes the current terms unfair.
Does long-term spousal support end if I remarry?
Generally yes, if you are the spouse receiving support. Maintenance automatically terminates on the recipient’s remarriage unless the decree or a written agreement specifically says otherwise.
Does domestic violence affect spousal support in Colorado?
Yes, as of August 2025. Courts must now consider whether a spouse engaged in domestic violence or related abusive conduct against the other spouse when deciding whether to award maintenance and in what amount.
Related Issue
- The analysis above applies once your case reaches permanent orders. While your divorce is still pending, a different set of rules controls. Our guide to temporary spousal support in Colorado covers how courts set support during the case itself, and why the temporary amount creates no presumption about what you’ll see at final orders.
Talk to a Colorado Spousal Support Attorney Today
You do not have to guess at how the formula, or the court’s discretion beyond it, applies to your marriage. Johnson Law Group has guided Colorado spouses through long-marriage maintenance cases involving retirement timing, executive compensation, and indefinite support. Our family law attorneys will walk you through your options in a free consultation.
Visit one of our offices across Colorado, or call today to schedule your consultation.
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