v3.26.3
Cover - USD ($)
$ in Millions
 12 Months Ended
Jun. 30, 2026
Sep. 24, 2026
Dec. 31, 2025
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Jun. 30, 2026    
Current Fiscal Year End Date --06-30    
Document Transition Report false    
Entity File Number 001-41106    
Registrant Name Incannex Healthcare Inc.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 93-2403210    
Entity Address, Address Line One Rialto South Tower Level 23    
Entity Address, Address Line Two 525 Collins Street    
Entity Address, City or Town Melbourne    
Entity Address, Postal Zip Code 3008    
Entity Address, Country AU    
City Area Code +61    
Local Phone Number 409 840 786    
Title of 12(b) Security Common Stock, $0.0001 par value per share    
Trading Symbol IXHL    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company true    
Entity Ex Transition Period false    
ICFR Auditor Attestation Flag false    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 123.5
Entity Common Stock, Shares Outstanding   12,544,627  
Documents Incorporated by Reference
Certain information required to be disclosed in Part III of this report is incorporated by reference from certain filed portions of the registrant’s definitive Proxy Statement for the 2026 Annual Meeting of Stockholders, which proxy statement will be filed not later than 120 days after the end of the fiscal year covered by this Form 10-K.
    
Entity Central Index Key 0001873875    
Amendment Flag false    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2026