86 Ill. Adm. Code 130.502
Quarterly Tax Returns
Section 130
Section 130.502 Quarterly
Tax Returns
a) If a retailer's average monthly tax liability to the
Department does not exceed $200, the Department may authorize returns to be
filed on a quarter-annual basis, with the return for January, February and
March of a given year being due by April 20 of such year; with the return for
April, May and June of a given year being due by July 20 of such year; with the
return for July, August and September of a given year being due by October 20
of such year, and with the return for October, November and December of a given
year being due by January 20 of the following year.
b) The decision to permit quarterly filing will be based on
information obtained by the Department, including,
but not limited to, registration and audit information regarding
the
retailer's average monthly liability.
The
Department shall periodically review taxpayer information, including returns
filed by the taxpayer, to determine if any changes have occurred that require
the taxpayer to file returns on other than a quarterly basis. If the Department
determines that a change is required in filing frequency, it shall notify the
taxpayer of its determination.
c) Quarterly returns, as to form and substance, shall be subject
to the same requirements as monthly returns.