PUBLIC LAWS-CH. 10 -MAR. 7 , 1941 53 Stat. 471, 462. 26U. .C.§.3801, 3761. chapter would effect an increase or decrease in the amount of the income taxes previously determined for such taxable year or years, and "(C) on the date of such determination of the tax under this subchapter correction of the effect of the inconsistent treatment in any one or more of the prior taxable years is prevented (except for the provisions of section 3801) by the operation of any law or rule of law (other than section 3761, relating to compromises), then the correction shall be made by an adjustment under this section. If in a subsequent determination of the tax under this subchapter for such taxable year such inconsistent treatment is not adopted, then the correction shall not be made in connection with such subsequent determination. "(2) Such adjustment shall be made only if there is adopted in the determination a position maintained by the Commissioner (in case the net effect of the adjustment would be a decrease in the income taxes previously determined for such year or years) or by the taxpayer with respect to whom the determina- tion is made (in case the net effect of the adjustment would be an increase in the income taxes previously determined for such year or years) which position is inconsistent with the treat- ment accorded such item in the prior taxable year or years which was not correct under the law applicable to such year. "(c) MEHOD AND ErfECr oF ADJUSTMENT.- (1) The adjustment authorized by subsection (b), in the amount ascertained as provided in subsection (d), if a net increase shall be added to, and if a net decrease shall be subtracted from, the tax otherwise computed under this subchapter for the taxable year with respect to which such inconsistent position is adopted. "(2) If more than one adjustment under this section is made because more than one inconsistent position is adopted with respect to one taxable year under this subchapter, the separate adjustments, each an amount ascertained as provided in subsection (d), shall be aggregated, and the aggregate net increase or decrease shall be added to or subtracted from the tax otherwise computed under this subchapter for the taxable year with respect to which such inconsistent positions are adopted. "(3) If all the adjustments under this section, made on account of the adoption of an inconsistent position or positions with respect to one taxable year under this subchapter, result in an aggregate net increase, the tax imposed by this subchapter shall in no case be less than the amount of such aggregate net increase. "(d) ASCERTAINMENT OF AMOUNT OF ADJUSTMENT. -In computing the amount of an adjustment under this section there shall first be ascertained the amount of the income taxes previously determined for each of the prior taxable years for which correction is prevented. The amount of each such tax previously determined for each such taxable year shall be (1) the tax shown by the taxpayer, or by the predecessor, upon the return for such prior taxable year, increased by the amounts previously assessed (or collected without assessment) as deficiencies, and decreased by the amounts previously abated, credited, refunded, or otherwise repaid in respect of such tax; or (2) if no amount was shown as the tax by such taxpayer or such predecessor upon the return, or if no return was made by such taxpayer or such predecessor, then the amounts previously assessed (or collected without assessment) as deficiencies, but such amounts reviously assessed, or collected without assessment, shall be decreased by the amounts previously abated, credited, refunded, or otherwise 28 [55 STAT.
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