Afghanistan (B) (NB), Bangladesh, Bhutan (B), China (mainland), India, Kazakhstan (B), Kyrgyzstan (B) (NB), Myanmar, Nepal, Pakistan, Taiwan (China), Tajikistan, Vietnam.
Tadjikistan and western Tien Shan and Pamir-Alai east through Himalayas to north-eastern India (Assam), central and eastern China, western Myanmar (possibly winter only), north-western Vietnam, and Taiwan.
 
Population
Estimated population is unknown (2010).
(Enicurus scouleri) [XC782771]
by id from \u6b66\u5ba3\u767e\u5d16\u69fd\u5927\u5ce1\u8c37,Laibin,Guangxi, China (flight call)
Little Forktail (Enicurus scouleri) [XC883956]
by Oriental Stork from Wu Wei Temple, Dali, Yunnan, China (call)
Subspecies
Isolated population in Taiwan named as fortis, on average very slightly larger and with more white on forecrown, but overlap in these characters with birds from elsewhere in range considered too great to warrant recognition.
The following 2 subspecies are recognised:
scouleri Vigors, 1832 - Himalayas to eastern China and north-western Vietnam, Taiwan.
fortis (Hartert, 1910) - Mountain streams of Taiwan.