This Colorado alimony calculator makes Colorado maintenance calculations using the Colorado alimony formula. Online Colorado alimony calculator from Graham.Law.Maintenance, or spousal support, is critical when a major life change occurs within family dynamics. Use our Colorado maintenance calculator. Calculating alimony in Colorado (CO) involves various state-specific laws and factors. Understanding these elements can help individuals navigate their. Colorado courts take 40 percent of the divorcing couple's combined monthly adjusted gross income (AGI) and subtract the lowerearning spouse's monthly AGI. A Colorado alimony calculator helps obtain an estimate for alimony payments. Consult an alimony lawyer in Colorado for a more accurate alimony calculation. Estimate how much you and your family will need to contribute for one year at Harvard with our simple Net Price Calculator.