Mr. Justice CLIFFORD

delivered the opinion of the court.

Associations engaged in moneyed transactions, whether incorporated or not, having a place of business where credits are opened by the deposit or collection of money or currency; subject to be paid or remitted upon draft, check, or. order; or where money is advanced or loaned on stocks, bonds, bullion, bills of exchange, or promissory notes; or where stock, bonds, bullion, bills of exchange, or promissory notes are received for discount or for sale, are regarded as banks, subject to taxation, under the internal revenue laws which were in operation when the taxes in controversy in the present suit were assessed and collected; but the same section which created the' liability and authorized the assessment of the taxes, also provided that savings banks, having no capital stock and doing no other business than receiv-ing deposits to. be loaned or invested for the sole benefit of the parties making such deposits, without profit or compensation to the association or company, shall be exempt from tax on so much of their deposits as they have invested in securities of the United States, and on all deposits less *117 than five hundred dollars made in .the name of any one person. *

Such taxes as are authorized by that act, to the amount of $2697.84, were assessed against the plaintiffs by the assessor of the district, and the record shows that they paid the same under protest to the collector of the same district, and that they instituted the present suit in the State court to recover back the amount, which was duly removed, on motion of the defendant, into the Circuit Court. Due appeal, it appears, w'as taken by the plaintiff from the decision of the assessor levying the tax to the commissioner, and the commissioner affirmed the action of the assessor and decided that the tax was legally assessed. † Service was made, and the defendant appeared and filed an answer, which amounted to the general issue, and prayed do be dismissed with judgr ment against the plaintiffs for his costs, which is a motion in the nature of a demurrer. Hearing was had before Mr. Justice Field, and he denied the application, holding that the plaintiffs, if they proved all of the allegations of their complaint, would be entitled to recover. Leave was subsequently granted to the defendant by the circuit judge to amend his answer, and he accordingly filed the amended answer which is exhibited in the record. Evidence was taken, and the parties, having waived a jury, submitted the ease, law and fact, to the determination of the court, and the court rendered judgment in favor of the plaintiffs for the whole amount claimed in the declaration, and the defendant sued oat the present writ of error.

Three errors are assigned by the present plaintiff, in substance and effect as follows: (1.) That the bank is not within the proviso exempting certain savings-banks from such taxation, as the bank had a capital stock.of $100,000, as stated in the finding of the Circuit Court. (2.) Because the bank did other business than receiving the deposits to be loaned or invested for the sole benefit of the depositors, without compensation to the association or company. (3.) Because *118 the deposits made in the bank are deposits subject to payment by check or draft, or represented in a way to bring the bank within the operation of the body of the section imposing the tax. *

Unrestrained by the proviso, it is quite clear that the bank would fall within the body of the section and be subject to the tax which the section levies, as the managers of the, institution have a place of business-where credits are opened by deposit, or collection of money or currency, subject to be paid or remitted by check or draft, or'represented by certificates of deposit. Attempt is made to controvert the proposition that the money deposited is represented by certificates of deposit, or that it is subject to check or draft, but it is quite clear that the pass-book furnished to the depositor performs the same office as the certificate, check, or draft,'as between the person making the deposit and the bank, showing to the entire satisfaction of the court that the evidence brings the bank within the material .words of the section, and that the framers of the act intended to recognize the well-known fact that there are banks of deposit without authority to make discounts, or to issue a circulating, medium.

Banks in the commercial sense are.'of three kinds,’to wit: 1, of deposit; 2, of discount; 3, of circulation. Strictly speaking the term bank implies a place for the deposit of money, as that is the most obvious purpose of such an institution. Originally the busiuess of banking consisted only in receiving deposits, such as bullion, plate, aud the like, for safe-keeping until the depositor should see fit to draw it out for use, but the busiuess, in the progress of events, was extended, and bankers assumed to discount-bills and notes and to loan money upon mortgage, pawn, or other securit}', and at a still later period to issue notes of their own intended as a circulating currency and a medium of exchange instead of gold and silver. Modern bankers frequently exercise any two or even all three of those functions, but it is still true that an institution prohibited from exercising any more than *119 one of those functions is a bank in the strictest commercial sense,, and unless such a hank is brought within the proviso under consideration, is equally subject to- taxation as if authorized to make discounts aud issue circulation as well as to receive deposits. *

Tested by these considerations it is clear that the judgment must be reversed unless it appears that the bank'is within the proviso to the section which imposes the tax, and sucli was the decision of this court in a case involving the same question,- though it arose under the prior act of Congress levying internal revenue duties'.

Two propositions were decided in that case, which are directly applicable to the case before the court, and the court is of the opinion that the same principles should be applied-in the present ease. They are as follows:

1. That savings banks which receive deposits and lend the same for the benefit of their depositors, if the -batik is under obligations to repay the amount when demanded, agreeably to their by-laws and charter, whether upon check, draft, or certificate of deposit, are engaged in the business of banking within the meaning of the body of the section imposing the tax, though the bank has no capita! stock and does no other business of banking.

2. That savings hanks, described in the proviso aud thereby exempted from taxation, became subject to the duty imposed by the body of the section on the repeal of the proviso, though tb y had no capital stock, and neither made discounts nor issued currency as circulation, nor transacted any business of hanking except to receive deposits, loan the same for the benefit of the depositors, and repay the amount as aforesaid in pursuance of their by-laws and charter. †

Apply those .rules to the present case, aud it is evident *120 that the only inquiry open is whether the plaintiff bank is exempted by the proviso from the taxation which the body of the section imposes.

Savings banks are not exempt from such taxation, except in certain cases, nor are any entirely exempted unless they have invested the whole of their deposits in the securities of the United States, if any of the deposits made in the name of one person amounted to, or exceeded, $500. Deposits in sums less than $500, and all such as are invested in the public securities, if the bank falls within the category described in the proviso, are exempt from such taxation, but every savings bank which does not fall within the category described in the proviso, is subject to taxation the same as any other bank coming within the purview of the act imposing the tax.

Such banks are not exempt from such taxation if they have a capital stock, nor if they do any other business than receiving deposits to be loaned or invested for the sole benefit of the person making such deposits. Both of those conditions are expressed in plain and unambiguous terms, and the law-makers, as if to place the second beyond cavil, provided not only that the deposits should be loaned or invested for the sole benefit of the depositors, but added, “and without profit or compensation to the association,” showing beyond controversy that Congress did not intend to exempt any savings banks from such taxation, except such as were devoted to charitable purposes and were managed solely for the benefit of the indigent, or of persons of small means.

Savings institutions undoubtedly exist which were established solely for charitable pui’poses, and many of them ar.e conducted in the spirit in which they were established, as a means of benefiting the indigent, and it is plain that Congress intended to exempt all such from the taxation imposed by the body of the section, but it is equally well known that there is another large class of such institutions which are doing an extensive and profitable business, and being the depositories of vast sums of money are earning large profits, *121 which are as justly subject to taxation as the profits of any other banking corporation in the country.

Power to lay and collect taxes is vested in Congress, and. Congress has enacted to the effect that all banks, except such as fall within the category described in the proviso under consideration, shall be subject to the tax imposed by the body of the section, aud it is clear that the plaintiff' bank does not come within either of the two conditions specified in the proviso, both of which must concur in order that the bank may claim to be exempt from the tax.

Argument to show that the bank does not come within the first condition is certainly unnecessary, as it is admitted that the bank has a capital stock of $100,000, of which $60,000 has been paid in cash, and that the bank holds the notes of the shareholders for the residue, the capital stock being a part of the security held for the benefit of the depositors. Five per cent, of the net profits of the bank is set aside as a reserved fund, and ten per cent, of the remainder is set apart for the stockholders who do not otherwise share in the dividends. It also appears that the reserved fund aud the interest thereon is loaned and invested in the same manner as the deposits, aud like the capital stock is kept as a security for the depositors; that the bank receives deposits, lends the money deposited aud repays it, together with the dividends arising from interest, in accordance with the terms and conditions stated in a prospectus issued by the bank to the depositors and an agreement thereto appended, which are exhibited in the record. Every depositor upon making a deposit signs the agreement, aud no money is received on deposit or held otherwise than upon the terms and conditions set forth in the prospectus and agreement. Accounts •have never been opened nor moneys received subject to payment on draft, check, or order, nor has the bank ever issued certificates of deposit, except such as were temporary, to give time to a depositor to determine whether he will make a term deposit or one subject to be drawn when wanted. "When a deposit is made a pass-book is given to the depositor aud an entry of the deposit is made in it and in the books of the *122 bank, and the money is drawn out by tbe depositor on presenting the pass-book or by a person holding his order„ Money sufficient to meet all ordinary demands is always intended to be kept on hand, and the bank always pays money upon calls, and it appears that there has never been a time since the bank was organized that it was not able to meet all ordinary demands. Genei’ally the bank asks the depositor to give a day or more notice on large amounts, but the manag'd s have never found it necessary to make any rule upon tbe subject. Loans are usually made on security of real estate, but in some cases upon bullion or personal property, nor are any loaus made upon bills of exchange, promissory notes, or other evidences of private indebtedness. Prompt payments have always been made, but the agreement contains the stipulation that money deposited with the bank shall be reimbursed only out of the first disposable funds that shall come into the hands of the bank after demand; and the defendants refer to that provision as distinguishing the case from the prior decision of this court, but the court is of the opinion that the proposition cannot be sustained, as. the regulation is evidently one adopted merely for an emergency, and that it was never intended to control the general dealings of the bank with its depositors. Money deposited in such a bank by one of its customers becomes a debt for which the bank is liable, and it cannot be admitted that the managers could lawfully adopt any rule which should postpone its payment indefinitely. * They may, doubtless, make any reasonable rule under that stipulation to, enable them to raise meauslfor such an extraordinary occasion, but they could not refuse payment altogether or provide for such delay as would essentially impair the value of the just claim of a depositor. Throughout, the amount of the deposit would continue to be a debt due to the depositor, demandable of the bank on presenting the pass-book, under such reasonable regulations as the bank or its managers may adopt.

*123 Prior regulations had been made in the reported case containing our former decision which gave the depositor the right to make such demand at four stated periods in the year, but in the case before the court no regulation upon the subject has been adopted other than what appears in the written agreement, which has never been enforced. Whether it ever will be or not is a matter which canuot be known, nor is such an inquiry of any importance in'the present ease, as the court is of the opinion that the stipulation, inasmuch as it has never become operative, cannot avail the plaintiffs in this controversy.

Beyond .all question the bank has capital stock, and inasmuch as 10 per cent, of it is set apart for the stockholders j it is not correct to say that the business which the bank does in receiving deposits and loaning and investing the same is done without compensation to the association.

Viewed in the light of these suggestions it is clear that the bauk does not fall within the category described in the proviso, and that the tax was legally assessed and collected.

Judgment reversed, and the cause remanded with directions to issue a new venire.

14 Stat. at Large, 115; Ib. 137.

†

Ib. 152.

14 Stat. at Large, 136.

Bank for Savings v. Collector, 3 Wallace, 510; Angell & Ames on Corporations (9th ed.), § 55; Insurance Co. v. Ely, 2 Cowan, 678; McCulloch’s Commercial Dictionary, 73-146; Duncan v. Savings Institution, 10 Gill & Johnson, 309; People v. Utica Insurance Co., 15 Johnson, 390; Grant on Banking, 1-6, 381-614.

†

Bank for Savings v. Collector, 3 Wallace, 512.

Thompson v. Riggs, 5 Wallace, 678; Marine Bank v. Fulton Bank, 2 Id. 252.