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Trusts, a child's own money, and Wisconsin child support

Two questions come up a lot for Wisconsin co-parents: how are trusts used in supporting a child, and what happens when the child has their own money — earnings, an inheritance, a custodial (UTMA) account, a trust, or Social Security? The short answer is that Wisconsin's support formula looks almost entirely at the parents' finances, and a child's own resources matter only in narrow, specific ways. This page is source-verified and educational — not legal advice.

How the pieces fit: ch. 767 sets the duty, DCF 150 does the math

Wisconsin child support comes from Wis. Stat. ch. 767. Section 767.511(1j) tells the court to set support "by using the percentage standard established by the department under s. 49.22 (9)" — and that standard is Wis. Admin. Code ch. DCF 150. So ch. 767 is the statute that creates the duty, and DCF 150 is the regulation that supplies the percentages.

Crucially, the DCF 150 formula is a percentage of "the gross income and assets of either or both parents." It takes parental income as its inputs (DCF 150.03–.04). A child's own income or assets are not part of the calculation itself.

When the child has their own money

A minor's wages, an inheritance, a trust for the child, or a custodial account are not inputs to the guideline number. They can matter only in three specific ways:

  1. As a discretionary deviation factor. Wis. Stat. § 767.511(1m)(a) lists "the financial resources of the child" as the first factor a court may weigh — but only on a party's request, and only if the court then finds "by the greater weight of the credible evidence that use of the percentage standard is unfair to the child or to any of the parties," with written findings (§ 767.511(1n)). DCF 150.035(3) mirrors this and points back to the § 767.511(1m) factors. This is a discretionary adjustment, not an automatic offset.
  2. The child's Social Security derivative benefit. This is the one place DCF 150 directly subtracts a child's incoming money. Under DCF 150.03(5), a court may take a child's benefit under 42 U.S.C. § 402(d) — paid because of a parent's disability or retirement entitlement — and reduce the payer's support by the child's benefit the payee receives. It can never require the payee to pay money back; and if the payer receives the child's benefit, support is the greater of the percentage standard or the benefit amount. The child's § 402(d) benefit is excluded from either parent's income. Because it derives from the parent's own work record, this is really a credit for the parent's contribution — not the child's independently-earned money.
  3. As part of a parent's income (indirectly). Trust and inheritance income are not named in DCF 150's income definition (DCF 150.02(13)). They reach the calculation only if they are a parent's "interest and investment income" or fall under the "all other income" catch-all.

And a child's UTMA custodial account does not reduce a parent's duty: Wis. Stat. § 54.880 lets a custodian spend custodial property "without regard to … any other income or property of the minor," and § 54.880(3) says such spending "is in addition to, not in substitution for, and does not affect any obligation of a person to support the minor."

How trusts are actually used here

In Wisconsin child support, trusts mostly hold or secure the parent's ordered support — they are not a way to tap the child's own money:

  • A support trust — § 767.511(2) and DCF 150.03(9). The court "may protect and promote the best interests of the minor children by setting aside a portion of the child support which either party is ordered to pay in a separate fund or trust for the support, education and welfare of such children." The money in that trust is the parent's ordered support, held for the child.
  • A receiver or trustee — § 767.57(5). The court "may appoint a receiver or trustee … to receive any payments ordered under this chapter, to invest and pay over the income for the … support and education of any of the children …, or to pay over the principal sum" as the court directs. This is a payment-and-security device for the parent's obligation.
  • UTMA custodianship & guardianship of a minor's estate (Wis. Stat. ch. 54) are the vehicles that hold a child's own property — a gift, inheritance, or settlement — managed for the child by a custodian or guardian, separate from (and not a substitute for) a parent's support duty.

Going deeper: for how an irrevocable discretionary spendthrift trust is structured — who may serve as trustee (a parent vs. a professional/corporate trustee), how spendthrift and discretionary protections keep creditors out, when a child-support "exception creditor" can and cannot reach a trust, the non-grantor / third-party-settlor tax posture, and special / supplemental needs trusts (SSI/Medicaid, WISPACT) — see Discretionary & spendthrift trusts, trustees & child support, with full Wisconsin, Uniform Trust Code, Restatement (Third), federal, and case citations.

Related deviation levers (for context)

The same § 767.511(1m) list and DCF 150.04 carry other adjustments that often come up alongside these:

  • Serial-family adjustment — § 767.511(1m)(bz) (the needs of others a party is legally obligated to support) and DCF 150.04(1), which subtracts support owed for earlier legal obligations (ordered by date incurred) before computing support for later children.
  • Self-support reserve — § 767.511(1m)(bp), letting the court weigh each party's need to support themselves at least at the federal poverty line (42 U.S.C. § 9902(2)).

Sources & further reading

Wis. Stat. § 767.511 (child support; deviation factors)Wis. Stat. § 767.57(5) (receiver/trustee for payments)Wis. Admin. Code ch. DCF 150 (PDF)DCF 150.03 (incl. (5) Social Security benefit & (9) Trust)DCF 150.035(3) (deviation references § 767.511(1m))Wis. Stat. § 54.854 (Uniform Transfers to Minors Act)Wis. Stat. § 54.880(3) (UTMA: "does not affect" support)

Verification note: every statutory and regulatory point above was checked against the Wisconsin Legislature's official text (statutes ch. 767 & ch. 54; Wis. Admin. Code ch. DCF 150) and DCF guidance. Case-law on these points (e.g., trusts for post-minority educational expenses, or the Social-Security-credit doctrine) was not independently verified here and is not relied upon. Statutes are current through the 2023-24 Wisconsin Statutes (updated through 2025 Wis. Act 247) and DCF 150 as of Register November 2024 No. 827 — confirm currency before relying on any citation.

Informational summary, not legal advice. See also child support for business owners & former owners, Did You Know?, and the multi-state child-support estimator. Consult a Wisconsin family-law attorney before relying on any of this.