OPINION OF THE COURT
The Pennsylvania corporate net income tax, Act of March 4, 1971, P.L. 74, No. 2, art. IV, § 401
et seq., as amended,
72 P.S. § 7401
et seq.,
is imposed on corporations transacting business within the Commonwealth. It is levied for the privilege of doing business in Pennsylvania.
Turco Paint & Varnish Co. v. Kalodner,
320 Pa.
*94
421,
The appeal is before us on an agreed stipulation of facts. Appellant, Triumph Hosiery Mills, Inc., is a New York corporation authorized to do business in Pennsylvania. During 1971 it engaged in business activity in Pennsylvania and was liable for Pennsylvania corporate net income tax. In its tax report for that year, appellant arrived at its tax base by adding to federal taxable income the amount of Pennsylvania corporate net income tax deducted on its federal income tax return. Appellant then apportioned the sum of these two items.
This computation was disputed by the Pennsylvania Department of Revenue and Department of the Auditor General. The two departments first applied appellant’s apportionment percentage to federal taxable income. Then, the whole deduction for Pennsylvania corporate net income tax was “added-back” in order to arrive at “taxable income.” The method employed by the Commonwealth yielded $6,484.02 more in taxes.
Thereafter, appellant filed a Petition for Resettlement which was refused. It then filed a Petition for Review *95 with the Board of Finance and Revenue which was also refused, two members of the Board dissenting. On appeal to the Commonwealth Court appellant was again denied relief. This appeal followed.
Section 401 (3) of the taxing statute provides:
“ ‘Taxable income.’
1. In case the entire business of the corporation is transacted within this Commonwealth, for any taxable year which begins on or after January 1, 1971, taxable income for the calendar year or fiscal year as returned to and ascertained by the Federal Government. . In arriving at ‘taxable income’ for Federal tax purposes for any taxable year beginning on or after January 1, 1971, any corporate net income tax due to the Commonwealth pursuant to the provisions of this article shall not be allowed as a deduction and the amount of corporate net income tax so due and excluded from Federal taxable income under the Internal Revenue Code shall not be apportioned but shall be subject to tax at the rate imposed under this article.
2. In case the entire business of any corporation . is not transacted within this Commonwealth, the tax imposed by this article shall be based upon such portion of the taxable income of such corporation for the fiscal or calendar year, as defined in subclause 1 hereof . . . .” (Emphasis supplied.)
This statute, like every enactment of the legislature, must be analyzed in accordance with the established rules of statutory construction. Particularly pertinent to the determination at hand is the principle “that a taxing statute must be strictly construed and any doubt or uncertainty as to the imposition of a tax must be resolved in favor of the taxpayer.”
Commonwealth v. Rieck Investment Corp.,
Our analysis begins with subclause 2 because appellant’s business is not strictly local. Subclause 2 of the statutory definition contains a general direction to apportion “taxable income” “as defined in subclause 1. .” (Emphasis supplied.) It is clear, therefore, that the tax base definition in subclause 1 applies to all corporations transacting business in Pennsylvania. *
*97
Turning to subclause 1, we find that the federal tax deduction for Pennsylvania corporate net income tax is included in “taxable income,” but in plain and specific language the subclause provides that the “add-back”
“shall not be apportioned. . .
.” (Emphasis supplied.) For corporations transacting business entirely in Pennsylvania this prohibition against apportionment is idle language. All the “taxable income” of such a corporation is subject to the state tax.
Commonwealth v. Northern Metal Co.,
We conclude that such a construction is both possible and proper. We hold, pursuant to Sections 401(3)1 and 401(3)2, that the tax base of a corporation which does not transact its entire business in Pennsylvania must include, without apportionment, the corporation’s federal tax deduction for the Pennsylvania corporate net income tax. Our reading of the statute comports with the language and intent of the legislature and lends to it an impact which is unassailable on constitutional grounds.
Apportionment is a necessary incident of the state’s taxation of a multistate corporation. As we ex *98 plained in Commonwealth v. Rieck Investment Corp., supra:
“It is well settled that state taxation of a foreign corporation’s intrastate business activities must proceed along such lines as not to infringe upon the due process, the interstate commerce or equal protection clauses of the United States Constitution. State taxation Cannot reach income or property derived from business activities conducted by foreign corporations outside the state’s border and over which the state has no jurisdiction. To satisfy the constitutional requirements and yet to permit states to tax foreign corporations on a basis which would bear a fair relation to the amount of local business done within their borders, the so-called apportionment or allocation formulas were devised . . . .”
The Order of the Commonwealth Court is affirmed.
Notes
Subclause 3 of Section 401 provides:
“In case the entire business of a corporation which has filed a timely election and has qualified to be taxed as a regulated investment company under the provisions of the Internal Revenue Code of 1954, as amended, is not transacted within this *97 Commonwealth, the tax imposed by this article shall be based upon such portion of the taxable income ... as defined in subclause 1 . . . .”
72 P.S. § 7401(3)3. (Emphasis supplied.)
