• Gestation is about 30–34 days; joey stays in the pouch 7–8 months.

Black-striped scrub wallabies typically live from 8 to 20 years, with a maximum lifespan of 30 years, although their theoretical lifespan ranges from 7 years and 7 months to 16 years and 8 months. The species reaches sexual maturity between 1 year and 6 months and 2 years of age, and the young’s eyes open between 4 months and 5 months and 1 week. During the embryonic stage, the embryo develops inside the mother for a very short time before a tiny joey is born. The joey then lives in the mother's pouch, feeds on milk, and gradually grows for a duration of from 5 months to 7 months and 1 week. Following this, the young enters a phase of rapid growth, leaving the pouch but remaining near its mother while learning to find food, a period lasting from 7 months and 1 week to 2 years. The adult stage begins when the animal is capable of reproduction and lives independently, continuing for a duration of from 2 to 12 years.