Option period
(h) Option period(1) An employee stock purchase plan or offering must, by its terms, provide that options granted under the plan cannot be exercised after the expiration of 27 months from the date of grant unless, under the terms of the plan or offering, the option price is not less than 85 percent of the fair market value of the stock at the time of the exercise of the option. If the option price is not less than 85 percent of the fair market value of the stock at the time the option is exercised, then the option period provided under the plan must not exceed five years from the date of grant. If the requirements of this paragraph (h) are not met by the terms of the plan or offering, then options issued under such plan or offering will not be treated as options granted under an employee stock purchase plan irrespective of whether the options, by their terms, are exercisable beyond the period allowable under this paragraph (h). An option that provides that the option price is not less than 85 percent of the fair market value of the stock at exercise may have an option period of 5 years irrespective of whether the fair market value of the stock at exercise is more or less than the fair market value of the stock at grant. However, if the option provides that the option price is 85 percent of the fair market value of the stock at exercise, but not more than some other fixed amount determined in accordance with the provisions of paragraph (g) of this section, then irrespective of the price paid on exercise, the option period must not be more than 27 months. (2) Section 1.421-1(c) provides that, for purposes of 1.421-1 through 1.424-1, the language the date of the granting of the option and the time such option is granted, and similar phrases refer to the date or time when the granting corporation completes the corporate action constituting an offer of stock for sale to an individual under the terms and conditions of a statutory option. With respect to options granted under an employee stock purchase plan, the principles of 1.421-1(c) shall be applied without regard to the requirement that the minimum option price must be fixed or determinable in order for the corporate action constituting an offer of stock to be considered complete. (3) The date of grant will be the first day of an offering if the terms of an employee stock purchase plan or offering designate a maximum number of shares that may be purchased by each employee during the offering. Similarly, the date of grant will be the first day of an offering if the terms of the plan or offering require the application of a formula to establish, on the first day of the offering, the maximum number of shares that may be purchased by each employee during the offering. It is not required that an employee stock purchase plan or offering designate a maximum number of shares that may be purchased by each employee during the offering or incorporate a formula to establish a maximum number of shares that may be purchased by each employee during the offering. If the maximum number of shares that can be purchased under an option is not fixed or determinable until the date the option is exercised, then the date of exercise will be the date of grant of the option. (4) Examples. The following examples illustrate the principles of this paragraph (h): (i) Annual $25,000 limitation(1) An employee stock purchase plan or offering must, by its terms, provide that no employee may be permitted to purchase stock under all the employee stock purchase plans of the employer corporation and its related corporations at a rate that exceeds $25,000 in fair market value of the stock (determined at the time the option is granted) for each calendar year in which any option granted to the employee is outstanding at any time. In applying the foregoing limitation (i) The right to purchase stock under an option accrues when the option (or any portion thereof) first becomes exercisable during the calendar year; (ii) The right to purchase stock under an option accrues at the rate provided in the option, but in no case may such rate exceed $25,000 of fair market value of such stock (determined at the time such option is granted) for any one calendar year; and (iii) A right to purchase stock that has accrued under one option granted pursuant to the plan may not be carried over to any other option. (2) If an option is granted under an employee stock purchase plan that satisfies the requirement of this paragraph (i), but the option gives the optionee the right to buy stock in excess of the maximum rate allowable under this paragraph (i), then no portion of the option will be treated as having been granted under an employee stock purchase plan. Furthermore, if the option was granted to an employee entitled to the grant of an option under the terms of the plan or offering, and the employee is not granted an option under the offering that qualifies as an option granted under an employee stock purchase plan, then the offering will not meet the requirements of paragraph (e) of this section. Accordingly, none of the options granted under the offering will be eligible for the special tax treatment of section 421. (3) The limitation of this paragraph (i) applies only to options granted under employee stock purchase plans and does not limit the amount of stock that an employee may purchase under incentive stock options (as defined in section 422(b)) or any other stock options except those to which section 423 applies. Stock purchased under options to which section 423 does not apply will not limit the amount that an employee may purchase under an employee stock purchase plan, except for purposes of the 5-percent stock ownership provision of paragraph (d) of this section. (4) Under the limitation of this paragraph (i), an employee may purchase up to $25,000 of stock (based on the fair market value of the stock at the time the option was granted) in each calendar year during which an option granted to the employee under an employee stock purchase plan is outstanding. Alternatively, an employee may purchase more than $25,000 of stock (based on the fair market value of such stock at the time the option was granted) in a calendar year, so long as the total amount of stock that the employee purchases does not exceed $25,000 in fair market value of the stock (determined at the time the option was granted) for each calendar year in which any option was outstanding. If, in any calendar year, the employee holds two or more outstanding options granted under employee stock purchase plans of the employer corporation, or a related corporation, then the employee's purchases of stock attributable to that year under all options granted under employee stock purchase plans must not exceed $25,000 in fair market value of the stock (determined at the time the options were granted). Under an employee stock purchase plan, an employee may not purchase stock in anticipation that the option will be outstanding in some future year. Thus, the employee may purchase only the amount of stock that does not exceed the limitation of this paragraph (i) for the year of the purchase and for preceding years during which the option was outstanding. Thus, the amount of stock that may be purchased under an option depends on the number of years in which the option is actually outstanding. The amount of stock that may be purchased under an employee stock purchase plan may not be increased by reason of the failure to grant an option in an earlier year under such plan, or by reason of the failure to exercise an earlier option. For example, if an option is granted to an individual and expires without having been exercised at all, then the failure to exercise the option does not increase the amount of stock which such individual may be permitted to purchase under an option granted in a year following the year of such expiration. If an option granted under an employee stock purchase plan is outstanding in more than one calendar year, then stock purchased pursuant to the exercise of such an option will be applied first, to the extent allowable under this paragraph (i), against the $25,000 limitation for the earliest year in which the option was outstanding, then, against the $25,000 limitation for each succeeding year, in order. (5) Examples. The following examples illustrate the principles of this paragraph (i):