Changes in withholding require completion of a new W-4P or you may submit the change in writing. Disability benefits are not subject to Illinois state income taxes.If the disability payments are included in federal adjusted gross income, Use the following pages to complete your Illinois State and Federal income tax withholding, or W-4 information. For help filling it out or for translation services, contact your DHS Family. Community Resource Center. Illinois ABLE helps people with disabilities save for qualified disability expenses without risking loss of their benefits from assistance programs. The Attorney General's Disability Rights Bureau enforces state and federal laws that protect the rights of people with disabilities in Illinois. Illinois ABLE helps people with disabilities save for qualified disability expenses without risking loss of their benefits from assistance programs. If you have a disability rights-related complaint, please complete and submit the form below.