86 Ill. Adm. Code 140.1501
Procedures
Section 140
Section 140.1501 Procedures
a) Where a serviceman under the Service Occupation Tax Act sells
out or discontinues his business, such serviceman shall continue to file
returns and pay tax with respect to selling prices received by the serviceman
thereafter on account of taxable transactions which occurred up to the date
upon which he sells out or discontinues his business. Such tax should be paid
notwithstanding the fact that the serviceman is no longer engaged in business.
For the purposes of filing a final return under Section 140.410 of this Part,
the taxpayer is not considered to have discontinued business as long as he
continues to collect receipts on which he is required to remit tax to the
Department.
b) For information concerning the requirements for complying with
the Bulk Sales Law when a business is sold by one person to another, see
Subpart P of this Part.