California Revenue & Taxation Code
Cal. Rev. & Tax. Code § 18624
# (a)
Section 6109 of the Internal Revenue Code, relating to identifying numbers, shall apply, except as otherwise provided.
# (b)
Identifying numbers shall be required on state tax returns, statements, or other documents in the form and manner as the Franchise Tax Board may require.
# (c)
Section 6109(h) of the Internal Revenue Code, relating to identifying information required with respect to certain seller-provided financing, shall not apply.
# (d)
The amendments made to Section 6109(a) of the Internal Revenue Code, relating to identifying number of income tax return preparer, by Public Law 105-206 shall apply.
# (e)
The amendments made by Chapter 931 of the Statutes of 1999 shall be operative on the effective date of that chapter.
# (f)
(1)For taxable years beginning on or after January 1, 2021, the Franchise Tax Board shall not require a nonresident alien who is not eligible for or has not been issued a federal social security number (SSN) or a federal individual taxpayer identification number (ITIN) to provide a SSN or ITIN in order to file a state tax return, statement, or other document required under this part. If a nonresident alien subsequently becomes eligible for and is issued a SSN or ITIN, the Franchise Tax Board may require the nonresident alien to provide a letter or other form documenting the nonresident alien’s SSN or ITIN.
(2)For purposes of this subdivision, “nonresident alien” shall mean a nonresident, as defined in Section 17015, who also meets the requirements of Section 7701(b)(1)(B) of the Internal Revenue Code.
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