Born in Sacramento, California, Becerra graduated from Stanford University and received his Juris Doctor degree from Stanford Law School. He worked as a lawyer at the Legal Assistance Corporation of central Massachusetts, before returning to California in 1986 to work as an administrative assistant for state senator Art Torres. He served as a deputy attorney general in the California Department of Justice from 1987 to 1990, before he was elected to the California State Assembly, where he served one term from 1990 to 1992.