Synopsis As Introduced Amends the Illinois Public Aid Code. Requires the Department of Human Services to provide monthly supplemental payments of $279 to persons who receive federal Supplemental Security Income grants and to undocumented residents who have a disability and meet other criteria. Provides that the supplemental payments shall not be considered income for purposes of determining eligibility or the amount of assistance for any public aid benefit under State or federal law including, subject to federal approval, benefits provided under the Supplemental Nutrition Assistance Program or any housing voucher or rental subsidy provided under the Rental Housing Support Program Act or a similar locally funded rent subsidy program, or under the Housing Choice Voucher Program under Section 8 of the U.S. Housing Act of 1937. Provides that the funding for the payments shall come from amounts collected under a specified provision of the Illinois Estate and Generation-Skipping Transfer Tax Act and deposited into the Illinois Supplemental Payments for Supplemental Security Income Recipients Fund, a special fund created in the State treasury. Amends the Illinois Estate and Generation-Skipping Transfer Tax Act. Imposes an additional estate tax and generation-skipping transfer tax on taxable transferred property valued at $4,000,000 or more. Provides that the additional tax shall be in an amount equal to 5% of the value of the transferred property. Requires the proceeds of the tax to be deposited into the Illinois Supplemental Payments for Supplemental Security Income Recipients Fund. Amends the State Finance Act to include the new special fund. Effective immediately.