(a) For the purpose of income taxation every distribution made by a corporation is made out of earnings and profits to the extent thereof and from the most recently accumulated earnings and profits. In determining the source of a distribution, consideration should be given first, to the earnings and profits of the taxable year; second, to the earnings and profits accumulated since February 28, 1913, only in the case where, and to the extent that, the distributions made during the taxable year are not regarded as out of the earnings and profits of that year; third, to the earnings and profits accumulated before March 1, 1913, only after all the earnings and profits of the taxable year and all the earnings and profits accumulated since February 28, 1913, have been distributed; and, fourth, to sources other than earnings and profits only after the earnings and profits have been distributed.

(b) If the earnings and profits of the taxable year (computed as of the close of the year without diminution by reason of any distributions made during the year and without regard to the amount of earnings and profits at the time of the distribution) are sufficient in amount to cover all the distributions made during that year, then each distribution is a taxable dividend. See §1.316-1. If the distributions made during the taxable year consist only of money and exceed the earnings and profits of such year, then that proportion of each distribution which the total of the earnings and profits of the year bears to the total distributions made during the year shall be regarded as out of the earnings and profits of that year. The portion of each such distribution which is not regarded as out of earnings and profits of the taxable year shall be considered a taxable dividend to the extent of the earnings and profits accumulated since February 28, 1913, and available on the date of the distribution. In any case in which it is necessary to determine the amount of earnings and profits accumulated since February 28, 1913, and the actual earnings and profits to the date of a distribution within any taxable year (whether beginning before January 1, 1936, or, in the case of an operating deficit, on or after that date) cannot be shown, the earnings and profits for the year (or accounting period, if less than a year) in which the distribution was made shall be prorated to the date of the distribution not counting the date on which the distribution was made.

(c) The provisions of the section may be illustrated by the following example:

(d) Any distribution by a corporation out of earnings and profits accumulated before March 1, 1913, or out of increase in value of property accrued before March 1, 1913 (whether or not realized by sale or other disposition, and, if realized, whether before, on, or after March 1, 1913), is not a dividend within the meaning of subtitle A of the Code.

(e) A reserve set up out of gross income by a corporation and maintained for the purpose of making good any loss of capital assets on account of depletion or depreciation is not a part of surplus out of which ordinary dividends may be paid. A distribution made from a depletion or a depreciation reserve based upon the cost or other basis of the property will not be considered as having been paid out of earnings and profits, but the amount thereof shall be applied against and reduce the cost or other basis of the stock upon which declared. If such a distribution is in excess of the basis, the excess shall be taxed as a gain from the sale or other disposition of property as provided in section 301(c)(3)(A). A distribution from a depletion reserve based upon discovery value to the extent that such reserve represents the excess of the discovery value over the cost or other basis for determining gain or loss, is, when received by the shareholders, taxable as an ordinary dividend. The amount by which a corporation's percentage depletion allowance for any year exceeds depletion sustained on cost or other basis, that is, determined without regard to discovery or percentage depletion allowances for the year of distribution or prior years, constitutes a part of the corporation's “earnings and profits accumulated after February 28, 1913,” within the meaning of section 316, and, upon distribution to shareholders, is taxable to them as a dividend. A distribution made from that portion of a depletion reserve based upon a valuation as of March 1, 1913, which is in excess of the depletion reserve based upon cost, will not be considered as having been paid out of earnings and profits, but the amount of the distribution shall be applied against and reduce the cost or other basis of the stock upon which declared. See section 301. No distribution, however, can be made from such a reserve until all the earnings and profits of the corporation have first been distributed.