2023 California Code › Family Code - FAM › DIVISION 9 - SUPPORT › PART 2 - CHILD SUPPORT › CHAPTER 2 - Court-Ordered Child Support › ARTICLE 2 - Statewide Uniform Guideline › Section 4058.

4058. (a) The annual gross income of each parent means income from whatever source derived, except as specified in subdivision (c) and includes, but is not limited to, the following:
(1) Income such as commissions, salaries, royalties, wages, bonuses, rents, dividends, pensions, interest, trust income, annuities, workers’ compensation benefits, unemployment insurance benefits, disability insurance benefits, social security benefits, severance pay, veterans benefits that are not based on need, military allowances for housing and food, and spousal support actually received from a person not a party to the proceeding to establish a child support order pursuant to this article.
(2) Income from the proprietorship of a business, such as gross receipts from the business reduced by expenditures required for the operation of the business.
(3) In the discretion of the court, employee benefits or self-employment benefits, taking into consideration the benefit to the employee, any corresponding reduction in living expenses, and other relevant facts.
(b) (1) (A) In a case when a parent’s annual gross income is unknown, the court shall consider the earning capacity of the parent.
(B) In a case when a parent’s annual gross income is known, the court may, in its discretion, consider the earning capacity of a parent in lieu of the parent’s income, consistent with the best interests of the children, taking into consideration the overall welfare and developmental needs of the children, and the time that parent spends with the children.
(2) When determining the earning capacity of the parent pursuant to this subdivision, the court shall consider the specific circumstances of the parent, to the extent known. Those circumstances include, but are not limited to, evidence of the parent’s assets, residence, employment and earnings history, job skills, educational attainment, literacy, age, health, criminal record and other employment barriers, and record of seeking work, as well as the local job market, the availability of employers willing to hire the parent, prevailing earnings levels in the local community, and other relevant background factors affecting the parent’s ability to earn.
(3) Notwithstanding any other law, the incarceration or involuntary institutionalization of a parent shall not be treated as voluntary unemployment in establishing or modifying support orders regardless of the nature of the offense. “Incarcerated or involuntarily institutionalized” has the same meaning as subdivision (e) of Section 4007.5.
(c) Annual gross income does not include any income derived from child support payments actually received, and income derived from any public assistance program, eligibility for which is based on a determination of need. Child support received by a party for children from another relationship shall not be included as part of that party’s gross or net income.
(d) This section shall be operative September 1, 2024.
(Repealed (in Sec. 6) and added by Stats. 2023, Ch. 213, Sec. 3. (SB 343) Effective January 1, 2024. Operative September 1, 2024, by its own provisions.)