v3.26.3
Form N-1A Cover
Oct. 05, 2026
Prospectus [Line Items]  
Document Type 497
Amendment Flag false
Registrant Name Capitol Series Trust
Entity Central Index Key 0001587551
Document Creation Date Oct. 06, 2026
Document Effective Date Oct. 06, 2026
Entity Investment Company Type N-1A
Document Period End Date Apr. 30, 2026
Prospectus Date Feb. 28, 2026