v3.25.3
Document and Entity Information
 12 Months Ended
Sep. 30, 2024
shares
Entity Addresses [Line Items]  
Entity Registrant Name DEFSEC Technologies Inc.
Entity Central Index Key 0001889823
Entity Current Reporting Status Yes
Current Fiscal Year End Date --09-30
Entity Common Stock, Shares Outstanding 1,579,174
Document Type 20-F/A
Document Period End Date Sep. 30, 2024
Entity Interactive Data Current Yes
Amendment Flag true
Amendment Description EXPLANATORY NOTE This Amendment No. 1 to the Annual Report on Form 20-F (the "Amendment") is being filed by DEFSEC Technologies Inc. (formerly KWESST Micro Systems Inc.) (the "Company") to amend the Company's Annual Report on Form 20-F for the fiscal year ended September 30, 2024, originally filed with the U.S. Securities Exchange Commission on December 30, 2024 (the "Original Filing"). The Company is filing this Amendment to amend Item 16G. Item 16G is hereby amended to clarify that we have elected to follow our home country practice under the Business Corporations Act (British Columbia) and the rules of the TSX Venture Exchange in lieu of certain Listing Rules of The Nasdaq Stock Market LLC. Except as described above, no other changes have been made to the Original Filing. Otherwise, this Amendment speaks as of the date of the Original Filing, and does not modify, amend or update any other item or disclosures in the Original Filing. As such, this Amendment does not reflect events occurring after the filing of the Original Filing or modify or update those disclosures affected by subsequent events. The Company's Principal Executive Officer and Principal Financial Officer are providing currently dated revised certifications as Exhibits 12.1, 12.2, and 13.1 in connection with this Amendment. The filing of this Amendment should not be understood to mean that any statements contained in the Original Filing, as amended by this Amendment, are true or complete as of any date subsequent to the filing date of the Original Filing. Accordingly, this Amendment should be read in conjunction with the Original Filing.
Document Fiscal Year Focus 2024
Document Fiscal Period Focus FY
Entity Emerging Growth Company true
Entity Ex Transition Period false
Trading Symbol DFSC
Security Exchange Name NASDAQ
Entity File Number 001-39389
Entity Well-known Seasoned Issuer No
Entity Voluntary Filers No
Entity Incorporation, State or Country Code A1
Entity Address, Address Line One 80 Hines Rd
Entity Address, Address Line Two Suite 300
Entity Address, City or Town Ottawa
Entity Address, State or Province ON
Entity Address, Country CA
Entity Address, Postal Zip Code K2K 2T8
Entity Filer Category Non-accelerated Filer
Document Annual Report true
Document Registration Statement false
Document Transition Report false
Document Shell Company Report false
Title of 12(b) Security Common Shares, no par value
ICFR Auditor Attestation Flag false
Document Accounting Standard International Financial Reporting Standards
Entity Shell Company false
Document Financial Statement Error Correction [Flag] false
Business Contact  
Entity Addresses [Line Items]  
Contact Personnel Name Jennifer Welsh
Entity Address, Address Line One 80 Hines Rd
Entity Address, Address Line Two Suite 300
Entity Address, City or Town Ottawa
Entity Address, State or Province ON
Entity Address, Postal Zip Code K2K 2T8
City Area Code 613
Local Phone Number 241-1849