“As soon as Krishna starts explaining the philosophy of life in the Gita, the first concept he covers is—the soul is eternal, which simply means that everyone actually exists forever; the soul (jiva) is not made up of perishable material. Explaining the continual evolution and movement of soul in the universe with time, Krishna says that death and subsequent rebirth in a different body is a stage for the soul that follows the stages of birth, childhood, adolescence, and old age in the current life (2: 13). This notion, derived from the eternal nature of the soul, is the principle of Reincarnation. The term “death” in Hindu philosophy applies only to the body, not to the everlasting soul (2: 20), which can be repeatedly reborn in new bodies, life after life. This belief forms the platform on which other theories, including the concept of karma, are based.”
(Excerpted from Devotional Hinduism by M.S. Goel (2008), p. 6.)
Because karma and reincarnation work together, they are transcended together when we reach God and attain moksha (liberation).