Colorado · 2026 law · Free · Runs in your browser
Colorado divorce calculators.
Child support, maintenance (alimony) and both together, on the same arithmetic the court’s worksheet uses: the 2026 child support law and the maintenance guideline. No account, no download, and nothing you enter leaves your browser.
Updated September 21, 2026Law current through March 1, 2026Reviewed by Aaron Herzberg, Colorado attorney
Two incomes and the overnights, on the 2026 worksheet: the $40,000 schedule, the per-overnight credit, child care and insurance.
Both incomes and the length of the marriage: the advisory amount, the after-tax adjustment and the term, for either spouse.
Enter everything once. Maintenance runs first, then child support on the adjusted incomes, then the total transfer and what each of you keeps.
The two questions under the number.
Every overnight moves child support, and the length of the marriage sets the maintenance term. Count both before you negotiate either.
Tick a schedule, add holidays and summer, and get each parent’s overnights, percentage and the support credit they earn.
Months of marriage to the guideline term, from the wedding and filing dates or the years, with the chart.
Three more tools, on their own pages.
The house, the retirement accounts, and the maintenance formula read from the payor’s side.
Assets, debts, tax-affecting and the equalization payment, four ways, on one balance sheet.
The time rule for a pension, the premarital account, PERA and military retired pay.
The same formula read from the side of the spouse writing the check, and what changes it.
Start from your question.
Pick the line that fits. Each tool takes a minute or two and shows its work line by line, so the result transfers straight to the court’s form.
- What will child support be?Child Support Calculator →
- Is there maintenance, and how much?Maintenance Calculator →
- We have children, and one of us will pay maintenance.Maintenance + Child Support →
- How many overnights does our schedule give each of us?Parenting-Time Calculator →
- How long would maintenance last?Maintenance Duration →
- Who keeps the house, and what is the buyout?The balance sheet →
Free Colorado divorce calculators, on the 2026 law.
The Colorado child support calculator applies the guideline in C.R.S. § 14-10-115 as amended March 1, 2026: the schedule of basic obligations to $40,000 of combined monthly income, the parenting-time credit for every overnight, the self-support reserve, and child care and health insurance, on the same lines as the court’s JDF 1821 worksheet. The Colorado maintenance calculator (alimony, spousal support) applies the advisory formula in C.R.S. § 14-10-114: 40 percent of combined income minus the lower income, the after-tax adjustment, and the term from the length of the marriage. The combined calculator runs both in the order a judge does, because maintenance changes both incomes before child support is figured.
They are the tools I use to frame a case before the first meeting. Bring the results; we will test the inputs, because the inputs, not the arithmetic, are where these cases are won and lost.
Questions about the calculators
Are these the official Colorado calculators?
No. The Judicial Branch publishes the JDF 1821 worksheet; these calculators follow the same lines, under the same statutes, so the numbers transfer directly. They are built and reviewed by a Colorado family-law attorney and run in your browser.
Are the results legally binding?
No. Child support under the guideline is a rebuttable presumption the court can depart from with findings (C.R.S. 14-10-115(8)(e)). The maintenance guideline is advisory (C.R.S. 14-10-114(3)). Both start from incomes the court has to find first.
Which law do the calculators use?
The 2026 law: the child support schedule that now runs to $40,000 of combined monthly income, the parenting-time credit for every overnight, the self-support reserve tied to the state minimum wage, and the maintenance guideline amount and term. Orders entered before March 1, 2026 stay in force until they are modified.
Is my information stored or sent anywhere?
No. Everything runs inside your browser. Nothing you type is transmitted to this website or anyone else, nothing is saved when you close the page, and there are no accounts. Use the report button if you want to keep a result.
What is gross income for these calculators?
Income from any source before taxes: wages, salary, bonuses, commissions, consistent overtime, self-employment income after ordinary and necessary expenses, rents, interest, dividends and pensions. Child support received for other children and means-tested benefits are not income. Where income is disputed, the court decides it, and can impute income to a parent who is voluntarily unemployed or underemployed.
Can I use them for a modification?
As a first pass, yes. Run today’s numbers and compare them with the current order; for child support, a difference of ten percent or more is deemed a substantial and continuing change (C.R.S. 14-10-122(1)(b)). Then read the modification pages before filing.
These calculators apply the formulas in the Colorado child support and maintenance statutes (C.R.S. §§ 14-10-115 and 14-10-114), as in force on March 1, 2026, to the numbers you enter. They are estimates for information and planning. They are not legal advice, not a court order and not a prediction of what a judge will do, and using them does not create an attorney-client relationship with Aaron Herzberg or Puzzle Group LLC.
The result is only as good as the inputs. The court, not the calculator, decides each parent’s income (including income imputed to a parent who is unemployed or underemployed), the number of overnights, which expenses count, whether a deviation from the guideline is justified and, for maintenance, whether the guideline should be followed at all: the maintenance formula is advisory, does not apply above $240,000 of combined annual income, and requires findings the calculator cannot make. Child support is a rebuttable presumption the court may depart from with findings. Orders entered before March 1, 2026 remain in force until modified.
The calculators run entirely in your browser; nothing you enter is transmitted, stored or seen by this office. They are reviewed for changes in the law, but the law changes, and the version in force on the day of a hearing is what governs. Before filing, negotiating or signing anything, have the figures checked by a Colorado family-law attorney against your documents.
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