Del. Fam. Ct. Civ. R. 503

(a) Primary share. Each parent’s Net Available income will be expressed as a percentage to be

known as the Primary Share of the parents’ combined Net Available income. The percentage

will be derived on a case-by-case basis by dividing each parent’s Net Available income by

their combined Net Available income. This is to allow the children’s primary support needs

to be equitably allocated between the parents and to facilitate the sharing of extraordinary

medical expenses. If the person seeking support is not a parent, then the Primary Share for

the obligor before the Court is 50%.

(b) Primary support. Each parent’s Primary Support Obligation is determined by multiplying

their Primary Share percentage by the sum of all of the elements of the children’s primary

support need. The elements of the primary support need are:

(1) Primary allowances. The primary allowances shall be comprised of two components, a

per household component and a per child component:

(i) The per household component is 25% of the Self Support Allowance minus $25.

(ii) The per child component is 25% of the Self Support Allowance plus $20.

(iii) Each component shall be rounded to the nearest multiple of ten (10). Half child

allowances may be rounded to a multiple of five (5).

(iv) To determine the allowance for each household, multiply the number of children by

the per child component, and then add the per household component to the result. The

allowances shall be adjusted in January of each year.

(2) Child care. The Formula facilitates the equitable allocation of all expenses incurred for

the care and supervision of the children of this union by either parent required for the

parent to work. No hypothetical or attributed child-care costs are permitted. Cancelled

checks, child-care contracts, receipts, and other instruments created in the usual course of

business shall be admissible in addition to the testimony of the parties to prove child-care

expenses.

(3) Health insurance premiums. A portion of premiums paid by a party for health insurance

covering dependent children of the union shall be included as an element of primary

support as follows:

(i) That portion shall be three-quarters (3/ 4 ) of a party’s out-of-pocket premium unless the

party has other minor children to support as described in Rule 502(e) in which case

the proportion will be one-half (1/ 2 ).

(ii) This may include insurance premiums paid by a guardian or through a stepparent.

However, no recognition will be given for a premium paid by a guardian or through a

stepparent if the policy covers any of the guardian’s or stepparent’s own children. The

portion allocated to the children by way of a stepparent shall be as in subsection (1)

by reference to the parent to whom the stepparent is married. The portion allocated to

the children by way of a guardian shall be controlled by reference to whether or not

the guardian is also guardian to other children of other unions.

(4) Other primary expenses. The special needs of some children require parents to regularly

incur other expenses including, as permitted by subsection (c), private school.

(c) Private school. Private or parochial school expenses shall be included as a primary expense

only where:

(1) The parties have adequate financial resources, and

(2) After consideration of the general equities of the particular case including consideration

of whether:

(i) The parents previously agreed to pay for their child(ren)’s attendance in private

school; or

(ii) The child has special needs that cannot be accommodated in a public school setting;

or

(iii) Immediate family history indicates that the child likely would have attended private

or parochial school but for the parties’ separation.

(d) Shared equal placement. Shared Equal placement (at least 164 overnights annually in each

household) is established by order of the court, by written agreement, or in the absence of

any order or written agreement by other evidence. Additionally,

(1) Each child is counted as one half in each household;

(2) The Court shall establish additional primary support allowances to accommodate any

such partial allocation of placement;

(3) Any modification of an order based upon a change between primary and shared equal

placement must be proven by court order or written agreement or, in the absence thereof,

by clear and convincing evidence.

(4) Shared Incidental Expenses. Upon a showing that a parent is not equally contributing to

shared incidental expenses, the Court may impose any appropriate sanction, including but

not limited to recalculating the support obligation as if the child resided primarily with

the other parent.

a. An expense is considered a “shared incidental expense” based on a totality of the

circumstances, including:

i. Whether the parents agreed or acquiesced to the expense being incurred (even if the

parents did not agree how to divide the expense);

ii. Whether the expense is customarily incurred by similarly situated families;

iii. Whether both parents benefit from the expense;

iv. The amount of the expense and the frequency with which it is anticipated to be

incurred; and

v. The parents’ respective abilities to contribute to the expense.

b. The following expenses shall be presumptively considered shared incidental expenses:

haircuts; school lunches; instrument rentals; school supplies; school project supplies;

enrollment/uniform and other mandatory fees (but not equipment) associated with

participating in local recreational sports or extracurricular activities; and local field

trips not requiring overnight accommodations or air transportation.

c. An action to enforce the provisions of this Rule shall be plead with particularity.

(5) If all the minor children before the Court reside in shared placement, and the calculation

indicates a net order of less than $50 per month, no affirmative payment of current

support shall be ordered.

(6) Either parent may be assessed an affirmative obligation without regard to which parent

filed the petition.