23 Va. Admin. Code § 10-120-300
B. If a corporation's taxable year is changed for federal income tax purposes, its taxable year for Virginia tax purposes shall be similarly changed.
If a change in a corporation's taxable year results in a taxable period of less than twelve months, no proration is required because the corporate tax rate is a flat 6%. However, if a corporation is required to annualize its federal taxable income and prorate the federal income tax, then the Virginia taxable income shall be similarly annualized and the tax prorated.
C. Virginia taxable income is defined as federal taxable income with certain additions, subtractions and modifications. Therefore, Virginia taxable income will always be based upon the same accounting methods as used for federal purposes.
The allocation and apportionment formulas use information not required in computing federal taxable income. See 23VAC10-120-140 through 23VAC10-120-270.
§§ 58.1-203 and 58.1-440 of the Code of Virginia.
Derived from VR630-3-440, eff. January 1, 1985.