(a) Any cash surrender value and any paid-up nonforfeiture benefit available under a policy on default in the payment of a premium due at any time other than on the policy anniversary must be computed with allowance for the lapse of time and the payment of fractional premiums after the preceding policy anniversary, except that a cash surrender value or nonforfeiture benefit is not required unless the cash surrender value or nonforfeiture benefit was required on the preceding policy anniversary.
(b) A value determined under Sections 1105.005-1105.009, Subchapter B, or Subchapter D may be computed on the assumption that any death benefit is payable at the end of the policy year of death.

(c) The net value of any paid-up additions, other than paid-up term additions, may not be less than the amounts used to provide those additions.