v3.26.1
Document and Entity Information
 12 Months Ended
Dec. 31, 2025
shares
Document Information [Line Items]  
Document Type 20-F
Amendment Flag false
Document Period End Date Dec. 31, 2025
Entity Central Index Key 0001161814
Entity Registrant Name KELSO TECHNOLOGIES INC.
Current Fiscal Year End Date --12-31
Entity Filer Category Non-accelerated Filer
Document Registration Statement false
Document Annual Report true
Document Transition Report false
Document Shell Company Report false
Entity File Number 001-36685
Entity Incorporation, State or Country Code Z4
Entity Address, Address Line One 305 - 1979 Old Okanagan Hwy
Entity Address, City or Town West Kelowna
Entity Address, State or Province BC
Entity Address, Postal Zip Code V4T 3A4
Entity Address, Country CA
Entity Common Stock, Shares Outstanding 55,300,085
Entity Interactive Data Current Yes
Entity Current Reporting Status Yes
Entity Voluntary Filers No
Entity Well Known Seasoned Issuer No
Document Fiscal Year Focus 2025
Document Fiscal Period Focus FY
Entity Ex Transition Period false
Entity Emerging Growth Company true
ICFR Auditor Attestation Flag false
Document Accounting Standard International Financial Reporting Standards
Entity Shell Company false
Auditor Firm ID 199
Auditor Location Chicago, Illinois
Auditor Name CBIZ CPAs P.C.
Document Financial Statement Error Correction [Flag] false
Auditor Opinion [Text Block]

Opinion on the Financial Statements

We have audited the accompanying consolidated statement of financial position of Kelso Technologies Inc. & Subsidiaries (the "Company") as of December 31, 2025, the related consolidated statements of operations and comprehensive income (loss), changes in equity, and cash flows for the year ended December 31, 2025, and the related notes to the financial statements (collectively referred to as the "financial statements"). In our opinion, based on our audit, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2025, and the results of its operations and its cash flows for the year ended December 31, 2025, in conformity with International Financial Reporting Standards ("IFRS") as issued by the International Accounting Standards Board.
Business Contact [Member]  
Document Information [Line Items]  
Entity Address, Address Line One 305 - 1979 Old Okanagan Hwy
Entity Address, City or Town West Kelowna
Entity Address, State or Province BC
Entity Address, Postal Zip Code V4T 3A4
Entity Address, Country CA
Contact Personnel Name Frank Busch
Local Phone Number 795.0022
City Area Code 778
Contact Personnel Email Address investor@kelsotech.com