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Addendum 1a Above-Threshold Offset Formula, with a 25% or More Threshold Expressed in Terms of Percent Time

Description: Child support is calculated on the basis of both parents’ income and the percentage of “above threshold” nights that the children spend with each parent.

Threshold is 25 percent of time or more.

The basic child support obligation is 17% of gross income for one child (25% for two children, 29% for three, 31% for four, and 34% for 5 or more children).

# Example:

Father earns $40,000 per year ($3,333 monthly), and cares for child 112 nights. Mother earns $24,000 per year ($2,083 monthly), and cares for child 253 nights.

Step 1. Determine the number of nights over the threshold of 25% (91) that each parent will have the children.

Father: 112 – 91 = 21 nights Mother: 253 – 91 = 162 nights

Step 2. Calculate the percentage of time that each parent will be responsible for paying child support by dividing the number of ‘above threshold’ nights that each parent has the child by 183 (the total number of ‘above threshold’ nights for both parents, 162 + 21).

Father: 21 / 183 = 11.5% Mother: 162 / 183 = 88.5%

Step 3. Calculate the gross amount of child support due from each parent by multiply their incomes by 17% (for one child), and by the percentage of ‘above threshold’ nights that the child is with the other parent (from Step 2).

Father: $3,333 * .17 * 88.5% = $501 Mother: $2,083 * .17 * 11.5% = $41

Step 4. Determine the amount of child support due by subtracting the mother’s gross child support from the father’s gross child support (from Step 3).

$501 - $41 = $460

Step 5. If the amount is a positive number, the father is the payor. Alternatively, if the amount is a negative number, then the mother is the payor.

Father is payor.