152 CODIFICATION OF INTERNAL REVENUE LAWS obtain a stay of collection of the whole or any part of the amount of the assessment by filing with the collector a bond in such amount, not exceeding double the amount as to which the stay is desired, and with such sureties, as the collector deems necessary, conditioned upon the payment of so much of the amount, the collection of which is stayed by the bond, as is not abated by a decision of the Board which has become final, together with interest thereon as provided in section 1022 or 1023 (b) (4). If any portion of the jeopardy assess- ment is abated by the Commissioner before the decision of the Board is rendered, the bond shall, at the request of the taxpayer, be pro- portionately reduced. (g) SAME--FURTHER CONDITIONS. -If the bond is given before the donor has filed his petition with the Board under section 1012 (a), the bond shall contain a further condition that if a petition is not filed within the period provided in such subsection, then the amount the collection of which is stayed by the bond will be paid on notice and demand at any time after the expiration of such period, together with interest thereon at the rate of 6 per centum per annum from the date of the jeopardy notice and demand to the date of notice and demand under this subsection. (h) WAIVER OF STAY.- Upon the filing of the bond the collection of so much of the amount assessed as is covered by the bond shall be stayed. The donor shall have the right to waive such stay at any time in respect of the whole or any part of the amount covered by the bond, and if as a result of such waiver any part of the amount covered by the bond is paid, then the bond shall, at the request of the donor, be proportionately reduced. If the Board determines that the amount assessed is greater than the amount which should have been assessed, then when the decision of the Board is rendered the bond shall, at the request of the donor, be proportionately reduced. (i) COLLECTION OF UNPAID AMOUNTS.-W hen the petition has been filed with the Board and when the amount which should have been assessed has been determined by a decision of the Board which has become final, then any unpaid portion, the collection of which has been stayed by the bond, shall be collected as part of the tax upon notice and demand from the collector, and any remaining portion of the assessment shall be abated. If the amount already collected exceeds the amount determined as the amount which should have been assessed, such excess shall be credited or refunded as provided in section 1027, without the filing of claim therefor. If the amount determined as the amount which should have been assessed is greater than the amount actually assessed, then the difference shall be assessed and shall be collected as part of the tax upon notice and demand from the collector. SEC. 1014. CLAIMS IN ABATEMENT. No claim in abatement shall be filed in respect of any assessment in respect of any tax imposed by this chapter. SEC. 1015. BANKRUPTCY AND RECEIVERSHIPS. (a) IMMEDIATE ASSESSMENT.- Upon the adjudication of bank- ruptcy of any donor in any bankruptcy proceeding or the appoint- ment of a receiver for any donor in any receivership proceeding before any court of the United States or of any State or Territory or of the District of Columbia, any deficiency (together with all interest, additional amounts, or additions to the tax provided for by law) determined by the Commissioner in respect of a tax imposed by this chapter upon such donor shall, despite the restrictions imposed by section 1012 (a) upon assessments be immediately assessed if such deficiency has not theretofore been assessed in accordance with law. Claims for the deficiency and such interest, additional amounts and additions to the tax may be presented, for adjudication in ac-
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