California Code, Welfare and Institutions Code - WIC § 10271.6

(a) To calculate a family's adjusted monthly income for purposes of determining income eligibility or calculating a family fee, the calculation shall be done by the use of an income calculation worksheet, and in accordance with subdivisions (b) and (c).

(b) When a family's income is regular and steady, the adjusted monthly income shall be determined by the use of an income calculation worksheet that specifies all of the following:

(c) When a family experiences income fluctuation, as defined in Section 18078 of Title 5 of the California Code of Regulations, a family may choose to provide up to the 12 preceding months of income information as necessary for purposes of determining income eligibility or calculating a family fee. The adjusted monthly income shall be determined by averaging the total countable income from at least two months, as applicable based on the income provided, to determine average adjusted monthly income for purposes of determining income eligibility or calculating a family fee.

(d) Notwithstanding the rulemaking provisions of the Administrative Procedure Act (Chapter 3.5 (commencing with Section 11340) of Part 1 of Division 3 of Title 2 of the Government Code), the department may implement and administer this section by all-county letters, bulletins, or similar written instructions until regulations are adopted. The department shall adopt regulations implementing this section no later than July 1, 2026.

(e) This section shall become operative on January 1, 2024.