Support for children from other relationships.

When a parent also supports children from another relationship, most guidelines account for that duty. The method varies: some states deduct support actually paid, some apply a lower percentage, and some build a theoretical obligation for the other children.

Children from a prior order

Support a parent actually pays under an existing order for other children is commonly subtracted from that parent’s income before the new calculation. Arizona, Illinois, Massachusetts and Maryland are examples of states that treat support of other children as a separate worksheet step. The key word is usually actually paid. An ordered amount that is not being paid may not qualify.

Children living in the parent’s home

A parent may also have children in their own household who are not covered by any order. Many states allow a credit or deduction for those children, often calculated as the support that would be owed for them under the same guideline. Georgia, Oklahoma and Ohio include a qualified other-child adjustment on the worksheet.

Example: the Texas multiple-family adjustment

Texas uses percentages of the paying parent’s monthly net resources, and it adjusts those percentages when the parent has a legal duty to support children in more than one household. The Texas state guide on this site explains the multiple-family provisions. When preparing a Texas calculation, list the children in this case separately from other children the parent is required to support.

Stepchildren and a new spouse’s income

A parent generally has no legal duty to support stepchildren, so stepchildren usually do not create a deduction. A new spouse’s income is generally not counted as the parent’s income, though some states allow it to be considered for a deviation. Check your state guideline before including either.

Prepare these records

• Copies of every existing support order for other children.
• Payment records, such as a state disbursement unit history, showing support actually paid.
• Birth certificates or other proof for children living in the household.

How this site handles other children

State calculators that implement an other-child deduction collect it as a separate entry. Where the adjustment requires a full official worksheet, the result says so and points to the correct line rather than treating the base amount as final.

Next: see the full document checklist.

Updated October 17, 2026. Published by Kestervale LLC. Educational information, not legal advice. Report a correction.