The aircraft entered active service with the Republic of Korea Air Force (ROKAF) in 2005.The T-50 has been further developed into aerobatic and combat variants, namely T-50B, TA-50, and FA-50. A F-50 single-seat multirole fighter variant was considered before being cancelled.
The T-50B serves with the South Korean air force’s aerobatics team. The T-50 has been ordered by a number of countries and entered into service in some of them.