v3.26.3
Cover - USD ($)
 12 Months Ended
Jun. 30, 2026
Sep. 28, 2026
Dec. 31, 2025
Document Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Transition Report false    
Entity Interactive Data Current No    
Amendment Flag false    
Entity Registrant Name SINGULARITY FUTURE TECHNOLOGY LTD.    
Entity Central Index Key 0001422892    
Document Period End Date Jun. 30, 2026    
Document Fiscal Year Focus 2026    
Document Fiscal Period Focus FY    
Entity Tax Identification Number 11-3588546    
Current Fiscal Year End Date --06-30    
Entity File Number 001-34024    
Entity Incorporation, State or Country Code VA    
Entity Address, Address Line One 48 Wall Street    
Entity Address, Address Line Two Suite 1100    
Entity Address, City or Town New York    
Entity Address, State or Province NY    
Entity Address, Postal Zip Code 10005    
City Area Code (702)    
Local Phone Number 849-4548    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
ICFR Auditor Attestation Flag false    
Entity Current Reporting Status No    
Entity Filer Category Non-accelerated Filer    
Entity Shell Company false    
Entity Emerging Growth Company false    
Entity Small Business true    
Entity Common Stock, Shares Outstanding   5,403,788  
Entity Public Float     $ 4,600,110
Trading Symbol SGLY    
Title of 12(b) Security Common Stock, no par value    
Security Exchange Name NASDAQ    
Document Financial Statement Error Correction [Flag] false    
Documents Incorporated by Reference [Text Block] None.