delivered the opinion of the Court.
Petitioners are counties of the state of Arizona and certain county officers. Respondent is a national banking association incorporated under the laws of the United States and having its principal banking house at Phoenix, Maricopa County, Arizona. It sued petitioners 1 to restrain the collection of certain state, county, school dis *359 trict and municipal taxes for the years 1935 and 1936 and invoked the jurisdiction of the United States District Court for the District of Arizona under § 24 (1) (a) of the Judicial Code, 28 U. S. C. § 41 (1) (a).
Respondent has two classes of shares of capital stock outstanding — common and preferred. Prior to March 9, 1933, national banks were not authorized to issue preferred shares. On that day they were given such authority and the Reconstruction Finance Corporation was authorized to subscribe for such shares. Act of March 9, 1933, 48 Stat. 1, Title III, as amended by § 2 of the Act of March 24, 1933, 48 Stat. 20, 12 U. S. C. § 51a, § 51d. On February 11, 1935, respondent issued to the Reconstruction Finance Corporation some 198,400 shares of its preferred stock with a par value of $1,240,000. By § 5219 of the Revised Statutes, 12 U. S. C. § 548, Congress consented on certain conditions to state taxation of shares of stock of national banking associations. Arizona taxes shares of stock of banking corporations. The tax is paid in the first instance by the bank which is entitled to reimbursement from the shareholder on whom the tax liability ultimately rests. Ariz. Code (1939) § 73-204, § 73-205. The Arizona statutes also provide that a lien for all taxes levied shall attach as of the first Monday in January of each year on the property assessed. § 73-506. Assessments of personal property are made by the county assessor between the first Monday in January and the first day in May of each year. § 73-402. State and local taxes levied on the basis of this assessment are collected by the county treasurer as
ex officio
tax collector. § 73-605, § 73-702. Petitioners’ assessments for 1935 included respondent’s preferred shares owned and held by the Reconstruction Finance Corporation. On the basis of those assessments, taxes were levied in 1935 against respondent which thereupon filed its bill of complaint in the federal District Court. While the cause was pend
*360
ing this Court decided
Baltimore National Bank
v.
State Tax Comm’n,
*361 Petitioners contend that the Act of March 20, 1936, violates the Fifth and the Tenth Amendments. They further argue that the word “person” as used in the Fifth Amendment includes counties and states; and that they may raise the Tenth Amendment issue since they are asserting the authority of the state of Arizona in assessing and in attempting to collect the taxes in question. We need not decide the last two questions. For even if we assume, arguendo, that petitioners are right in those contentions, we are of the view that the judgment below must be affirmed.
Little need be said in answer to the argument that the Act violates the Tenth Amendment. The authority by which the taxes in question were levied did not stem from the powers “reserved to the States” under the Tenth Amendment. It was conferred by Congress which has under the Constitution exclusive authority to determine whether and to what extent its instrumentalities, such as the Reconstruction Finance Corporation, shall be immune from state taxation.
Smith
v.
Kansas City Title & Trust Co., 255
U. S. 180, 211-213;
Federal Land Bank
v.
Crosland, 261
U. S. 374;
Pittman
v.
Home Owners’ Loan Corp.,
The argument that the Act of March 20, 1936, violates the Fifth Amendment is based on its retrospective feature. Petitioners contend that since the liens of the taxes were impressed before the effective date of the Act, they were property rights which Congress could not destroy. We need not consider the case where prior to the withdrawal
*362
of the privilege the tax had been collected or the tax lien foreclosed and the property reduced to the possession of the taxing authority. In the instant case the state taxing authorities are asserting rights which if recognized can be enforced by the maintenance of a suit to establish and foreclose a lien on property of a federal instrumentality, the Reconstruction Finance Corporation. Cf.
New York
v.
Maclay,
Affirmed.
Notes
For an earlier phase of this litigation see
Ex parte Bransford,
