37 U.S.C. § 371: Relationship to other incentives and pays

(a) Treatment.—A bonus or incentive pay paid to a member of the uniformed services under subchapter II is in addition to any other pay and allowance to which a member is entitled, unless otherwise provided under this chapter. (b) Exception.—A member may not receive a bonus or incentive pay under both subchapter I and subchapter II for the same activity, skill, or period of service. (c) Relationship to Other Computations.—The amount of a bonus or incentive pay to which a member is entitled under subchapter II may not be included in computing the amount of—(1) any increase in pay authorized by any other provision of this title; or (2) any retired pay, retainer pay, separation pay, or disability severance pay.