HSK (Hanyu Shuiping Kaoshi) runs regularly in China and abroad. Domestically, most months have sessions (some cities monthly); exact dates come from the official site chinesetest.cn annual notice. Watch registration windows 1-2 months ahead — popular centers fill fast.
Fees vary by level and center: in China, HSK 1-6 roughly ¥150-650 (levels 1-2 cheaper, 5-6 higher); overseas centers follow local rates. Registration: create an account on the official site, pick a date and center, pay online (international payments supported).
Choosing a center: every provincial capital and major city has one (universities or language schools); 100+ countries host overseas centers. Consider distance, date fit, and whether the center offers paper or computer-based tests (many offer both).
Don't forget HSKK (spoken Chinese) and the youth YCT test — many candidates book HSK+HSKK together. About a week before the exam you can download the admission ticket; bring your passport/ID and ticket on test day.