Colorado's Child Support Calculation Changed Dramatically on March 1, 2026
Colorado eliminated the 92-overnight threshold that previously determined whether parenting time affected child support calculations. Under HB 25-1159, effective March 1, 2026, every overnight a parent spends with their child now counts toward reducing their child support obligation from the very first night. This change ends a system where parents with 91 overnights received zero credit while those with 93 overnights saw significant adjustments of 10% or more.
| Key Facts | Details |
|---|---|
| What happened | Colorado eliminated the 92-overnight cliff for child support calculations |
| When effective | March 1, 2026 |
| Key legislation | HB 25-1159 |
| Previous threshold | 92 overnights minimum for any parenting time credit |
| New standard | Credit begins at first overnight, scales continuously |
| Income cap change | Increased from $30,000 to $40,000 combined monthly gross income |
The 92-Overnight Cliff Created Perverse Incentives for Colorado Parents
The previous Colorado child support guidelines under C.R.S. § 14-10-115 used an all-or-nothing approach that created significant problems in custody negotiations. A parent with 91 overnights per year received exactly the same child support obligation as a parent with zero overnights. The moment a parent crossed the 92-overnight threshold, their support obligation could drop by 10% to 15% depending on income levels.
This cliff effect turned parenting time negotiations into mathematical games rather than discussions about children's best interests. Attorneys regularly saw cases where parents fought over one or two overnights not because those nights mattered to the child, but because crossing the threshold meant thousands of dollars in annual support changes. A parent paying $1,500 monthly might see a $150-$225 monthly reduction simply by adding two overnights.
The new continuous formula recognizes a simple reality: a parent exercising 80 overnights contributes more directly to their child's expenses than a parent exercising 20 overnights. Under the updated C.R.S. § 14-10-115, that contribution now receives proportional recognition in the support calculation.
How the New Colorado Child Support Formula Works
Colorado's updated guidelines calculate parenting time adjustments on a sliding scale that begins with the first overnight. The formula considers the percentage of overnights each parent exercises rather than applying a binary threshold.
For example, under the old system:
- Parent with 60 overnights: Zero parenting time adjustment
- Parent with 92 overnights: Full adjustment (approximately 10-15% reduction)
Under the new system effective March 1, 2026:
- Parent with 60 overnights: Proportional adjustment based on 16.4% of total nights
- Parent with 92 overnights: Proportional adjustment based on 25.2% of total nights
- Parent with 182 overnights: Proportional adjustment based on 50% of total nights
The adjustment scales smoothly between these points rather than jumping at arbitrary thresholds. This creates more predictable outcomes and reduces the incentive to litigate over small differences in parenting time.
Income Cap Increase Affects Higher-Earning Colorado Families
HB 25-1159 also raised the combined gross income cap from $30,000 to $40,000 per month. This change affects Colorado families where both parents together earn more than $360,000 annually. Under the previous $30,000 cap, child support calculations for high-income families capped out at combined monthly income of $360,000 annually. Courts had discretion to deviate upward but often lacked clear guidance.
The new $40,000 monthly cap means the guidelines now apply to families earning up to $480,000 combined annually. For a family at the new cap with two children and equal parenting time, guideline support could reach $3,500-$4,500 monthly depending on the income split between parents.
Practical Takeaways for Colorado Parents
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Review existing orders: Parents with child support orders entered before March 1, 2026 may have grounds to request modification if their parenting time arrangement would produce different results under the new formula. Colorado allows modification when circumstances change substantially.
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Recalculate your numbers: Use the updated Colorado child support calculator to determine how your obligation changes. Parents previously below the 92-overnight threshold will likely see the most significant changes.
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Focus on actual overnights: The new system rewards consistent exercise of parenting time. Document your actual overnights carefully because every night now has financial implications.
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Consider modification timing: Orders modified on or after March 1, 2026 automatically use the new guidelines. If modification benefits you, waiting until after the effective date may be strategic.
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Update parenting plans: If your current plan specifies exactly 91 or 92 overnights specifically to navigate the old threshold, you may want to revisit the schedule based on what actually works best for your family.
Frequently Asked Questions
Does this law apply to existing Colorado child support orders?
Existing orders remain in effect until modified. However, the new formula applies to any modification filed on or after March 1, 2026. Parents who believe the new calculation would change their support by 10% or more can petition for modification under C.R.S. § 14-10-122, which permits modification when financial circumstances have changed substantially.
How much will my child support change under the new Colorado formula?
The change depends on your current overnight count and income levels. A parent with 60 overnights might see support obligations decrease by 5-8% compared to the old zero-credit calculation. A parent with 150 overnights might see increases if they previously received full adjustment at 92 nights. The $40,000 income cap also affects calculations for families earning over $360,000 combined annually.
When should I file for modification to get the new calculation?
File your modification petition on or after March 1, 2026 to ensure the new guidelines apply. Filing before the effective date means your case will be calculated under the old 92-overnight threshold rules. Colorado courts apply the law in effect at the time of the modification hearing, so timing your filing strategically can affect your outcome.
Will this change affect how Colorado courts decide custody schedules?
The law changes support calculations, not custody standards. Colorado courts still determine parenting time based on the best interests of the child under C.R.S. § 14-10-124. However, removing the 92-overnight cliff may reduce litigation over small schedule differences because parents no longer gain or lose thousands of dollars by crossing an arbitrary threshold.
Can I count partial overnights toward the new calculation?
Colorado counts overnights based on where the child sleeps. A child who spends the night at your home counts as one overnight regardless of pickup or dropoff times. Daytime parenting time that does not include an overnight does not factor into the overnight count, though it may be relevant to other aspects of custody arrangements.
Connect With a Colorado Family Law Attorney
Child support calculations involve multiple factors beyond overnight counts, including income verification, healthcare costs, and childcare expenses. An experienced Colorado family law attorney can help you understand how HB 25-1159 affects your specific situation and whether modification makes sense for your family.
This article discusses recent news and provides general legal commentary. It does not constitute legal advice. Every case is unique. Consult a qualified family law attorney for advice specific to your situation.