# Income Calculation (a) To calculate a family's adjusted monthly income for purposes of determining income eligibility and/or calculating a family fee, the calculation shall be done by the use of an income calculation worksheet, and shall be calculated as provided for in subsections (b) and (c). (b) When a family's income is regular and steady, use the income calculation worksheet that specifies: (1) The frequency of the pay periods; (2) The gross amount of the payroll check stubs; and (3) All other sources of countable income to determine the adjusted monthly income pursuant to section 18078, as either: (A) Weekly for 52 pay periods; (B) Every two weeks for 26 pay periods; (C) Twice monthly for 24 pay periods; or (D) Monthly for 12 pay periods. (c) When a family's income fluctuates because of migrant, agricultural, or seasonal work; inconsistent and/or unstable employment or self-employment; or intermittent income, as defined in section 18078, the adjusted monthly income shall be determined by averaging the total countable income from the preceding 12 months. > NOTE: Authority cited: Sections 8261, 8263 and 8263.1, Education Code. Reference: Sections 8261 and 8263, Education Code; and 45 Code of Federal Regulations Section 98.21. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://title5.caqualityearlylearning.org/general-child-care-programs/income-calculation.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.