Taxpayers claiming an exemption for a dependent with a disability. (see Utah Code §59-10-1018) must complete a form TC-40D each year.Utah does not require employees to complete a state W-4 form. Utah has a flat state income tax rate. You don't need to file Form TC40D with your return. Simply keep this form and all related documents with your records. Find Utah military and veterans benefits information on state taxes, education, employment, parks and recreation, and VA facility locations. Form TC40D has been eliminated because the state of Utah decided to give a personal exemption for dependents that qualify for the child tax credit. Davis County offers several tax relief programs. If all of the qualifications are meet these programs could reduce or abate the real or personal property taxes.