For decedents dying prior to 2015, see the Returns previously posted on our website covering the specific year of death at issue
subject to taxation.
For persons dying in 2015, the Federal exemption for Federal estate tax purposes is $5,430,000. However, the exemption equivalent
for Illinois estate tax purposes is $4,000,000. Therefore, tentative taxable estates with adjusted taxable gifts between $4,000,000
and $5,430,000 will owe an Illinois estate tax without any corresponding Federal estate tax liability. In such situations, the estate
representative is to prepare and file the Illinois Estate Tax Return, Form 700, together with a Federal Form 706, Federal Estate Tax
Return, or any other form containing the same information, even though the Federal return is not required to be filed with the Internal
Revenue Service. The Federal Form 706 must include all schedules, appraisals, wills, trusts, attachments, etc. as the Federal Form
706 would have for a 2015 decedent with a tentative taxable estate plus adjusted taxable gifts over $5,430,000. The Illinois estate tax
will be determined using the interrelated calculations from the 2015 calculator available at www.illinoisattorneygeneral.gov. The
computations are based upon using the amounts of the Illinois Tentative Taxable Estate (Line 3, Schedule A or B, Form 700) and the
Illinois Tentative Taxable Estate with Adjusted Taxable Gifts (Line 5, Schedule A or B, Form 700).
When the tentative taxable estate plus adjusted taxable gifts exceeds $5,430,000 the Illinois Estate Tax Return, Form 700, must
include a copy of the Federal Form 706 with all schedules and attachments.
For both resident and nonresident decedents, the tax base will be calculated assuming all assets are located within Illinois. (Line 6,
Schedule A or B, Form 700). The percentage of Illinois assets to total assets is then computed with the percentage applied to the tax
base for apportionment purposes to determine the amount of Illinois estate tax due.
Illinois QTIP Election (Qualified Terminable Interest Property):
For persons dying January 1, 2009 and after, the estate may make a QTIP election for Illinois purposes which is in addition to any
Federal QTIP election. The Illinois QTIP must be elected on a timely filed Illinois return by checking the election box, inserting the
dollar amount of the QTIP election, and providing the social security number of the surviving spouse. An itemized list of property
included in the Illinois QTIP should be submitted with the return. The Illinois QTIP election will follow Federal statutes and rules for
treatment of such elected property passing to the surviving spouse and inclusion for Illinois purposes on any Illinois Estate Tax Return
of the surviving spouse, except as to the application of the Illinois Religious Freedom Protection and Civil Union Act to parties of a
civil union for Illinois estate tax purposes. The maximum Illinois QTIP election allowable for decedents dying in 2015 is $1,430,000
THIS RETURN MUST BE FILED WITH THE ATTORNEY GENERAL WITHIN NINE (9) MONTHS OF THE DATE OF DEATH.
For Cook, DuPage, Lake and McHenry Counties, file the original of the return with the Office of the Attorney General, Revenue
Litigation Bureau, 100 West Randolph Street, 13th Floor, Chicago, Illinois 60601.
For all other counties, file the original of the return
with the Office of the Attorney General, Revenue Litigation Bureau, 500 South Second Street, Springfield, Illinois 62706. Effective
July 1, 2012, an additional copy of the return, without attachments, must also be filed with the S
tate Treasurer.
PAYMENT OF ALL TAXES, INTEREST AND PENALTIES MUST BE MADE PAYABLE TO THE ILLINOIS STATE TREASURER
WITH THE "ILLINOIS STATE TREASURER ESTATE TAX PAYMENT FORM" AT THE ADDRESSES DESIGNATED THEREIN.
ALL PAYMENTS MUST BE MAILED TO OR DEPOSITED WITH THE STATE TREASURER IN ORDER TO BE CREDITED WITH
TIMELY PAYMENT. Please send a copy of the State Treasurer’s receipt to: Office of the Attorney General, Revenue Litigation
Bureau, 100 West Randolph Street, 13th Floor, Chicago, Illinois 60601, or the Office of the Attorney General, Revenue Litigation
Bureau, 500 South Second Street, Springfield, Illinois 62706, as appropriate.
STATE OF ILLINOIS ESTATE & GENERATION SKIPPING TRANSFER TAX RETURN - PAGE 5
FILING AND PAYMENT INSTRUCTIONS
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Printed by authority of the State of Illinois. (Revised: 08/15)