Qualified Subchapter S Subsidiary (QSub)
Parent corporation name
California Corporation no. or FEIN
Name of QSub
Effective date of
Date of QSub
Enter the effective date of the federal QSub
election made for the subsidiary in column (d).
For taxable years beginning on or after
An election made by the parent S corporation
January 1, 1997, California law has conformed
under IRC Section 1361(b)(3) to treat a
to the federal treatment of Qualified Subchapter
Enter in Part I the name of the parent
corporation as a QSub for federal purposes
S Subsidiaries (QSub), with certain exceptions.
S corporation, the S corporation’s California
is treated as a binding election for California
The QSub is subject to an annual tax of $800
corporation number, seven digits, or the
purposes. A separate election cannot be filed
which is paid by the S corporation’s parent.
federal employer identification number (FEIN),
for California. If the effective date falls on a
See Form 100S, California S Corporation
date other than the first day of the subsidiary’s
Franchise or Income Tax Return, General
taxable year, the subsidiary must file a
Information DD, Qualified Subchapter S
short-period return if it was subject to tax in
Subsidiary (QSub), for more information.
Enter in Part II the information for each QSub
California prior to the effective date.
An S corporation parent must complete the
required to be included in the Form 100S.
The S corporation parent is required to pay
Schedule QS and attach it to the Form 100S.
In column (a), enter the name of each QSub
$800 annual tax for each QSub it owns that
included in this return. If the QSub has or
is incorporated, qualified, or doing business
had a California corporation number, enter
in California. The QSub annual tax is due
the number in column (b). If the QSub has or
The QSub Information Worksheet is used by
and payable when the S corporation’s first
had a FEIN, enter the number in column (c).
the S corporation parent of a QSub to inform
estimated tax payment is due. If the QSub is
If the corporation does not have a California
the Franchise Tax Board (FTB) of the QSub(s) it
acquired during the taxable year, the QSub
corporation number and/or a FEIN, enter
owns. This worksheet notifies the FTB that the
annual tax is due with the S corporation’s next
QSub items of income, deductions, and credits
estimated tax installment. Enter the date of
will be included in the parent’s return and the
payment in column (e) and amount of QSub
QSub will not be filing a separate California
annual tax paid in column (f).
franchise or income tax return.
Form 100S Booklet 2014 Page 39