Washington Revised Code Title 82. Excise Taxes § 82.04.4297. Deductions--Compensation from public entities for health or social welfare services--Exception

In computing tax there may be deducted from the measure of tax amounts received from the United States or any instrumentality thereof or from the state of Washington or any municipal corporation or political subdivision thereof as compensation for, or to support, health or social welfare services rendered by a health or social welfare organization, as defined in RCW 82.04.431, or by a municipal corporation or political subdivision, except deductions are not allowed under this section for amounts that are received under an employee benefit plan.