In Massachusetts, the Commonwealth uses Child Support Guidelines to estimate the correct amount of child support to be paid. The amount of support is determined by a set of factors outlined in the Child Support Guidelines and by applying the applicable factors to a Child Support Worksheet. The worksheet is calculated to reflect the amount of money for the benefit of the children that the custodial parent (who the children reside with primarily) will receive from the non-custodial parent. When there is a joint custodial arrangement the worksheet is calculated by having each parent as the recipient and subtracting the difference between the two outcomes. The factors that the guidelines consider are things such as, each parents’ income, the costs for health insurance, the costs for child care, and any other relevant costs. The court can also order the payment of college expense and extracurricular activities. On Friday, September 15, 2017, the Commonwealth will be implementing new Child Support Guidelines. The changes were made by a task force after careful review and consideration of the increased costs associated with raising a child in Massachusetts. Key changes that were made to the guidelines are as follows: 1) Minimum support increased from the 2002 standard of $18.46 per week to $25.00 per week due to an increase in the overall cost of living in Massachusetts since 2002. 2) Actual time spent parenting is not determinative of Child Support. The new guidelines are based on only two scenarios, joint custody and one parent