Exemption of insolvent banks from tax

Whenever and after any bank or trust company, a substantial portion of the business of which consists of receiving deposits and making loans and discounts, has ceased to do business by reason of insolvency or bankruptcy, no tax shall be assessed or collected, or paid into the Treasury of the United States, on account of such bank or trust company, which shall diminish the assets thereof necessary for the full payment of all its depositors; and such tax shall be abated from such national banks as are found by the Comptroller of the Currency to be insolvent; and the Secretary, when the facts shall appear to him, is authorized to remit so much of the said tax against any such insolvent banks and trust companies organized under State law as shall be found to affect the claims of their depositors. Whenever any bank or trust company, a substantial portion of the business of which consists of receiving deposits and making loans and discounts, has been released or discharged from its liability to its depositors for any part of their claims against it, and such depositors have accepted, in lieu thereof, a lien upon subsequent earnings of such bank or trust company, or claims against assets segregated by such bank or trust company or against assets transferred from it to an individual or corporate trustee or agent, no tax shall be assessed or collected, or paid into the Treasury of the United States, on account of such bank or trust company, such individual or corporate trustee or such agent, which shall diminish the assets thereof which are available for the payment of such depositor claims and which are necessary for the full payment thereof. The term “agent”, as used in this subsection, shall be deemed to include a corporation acting as a liquidating agent. This section shall not apply to any tax imposed by chapter 21 or chapter 23.