25 C.F.R. § 20.311

(a) The social services worker will deduct the following amounts from earned income:

(1) Other federal, state, and local taxes;

(2) Social Security (FICA);

(3) Health insurance;

(4) Work related expenses, including reasonable transportation costs;

(5) Child care costs for children under the age of 6 except where the other parent in the home is unemployed and physically able to care for the children; and

(6) The cost of special clothing, tools, and equipment directly related to the individual's employment.

(b) For self-employed individuals, the social services worker will deduct the costs of conducting business and all of the amounts in paragraph (a) of this section.