Document and Entity Information	12 Months Ended
	Dec. 31, 2024 shares
Document Information [Line Items]
Document Type	20-F
Amendment Flag	false
Document Period End Date	Dec. 31, 2024
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	55,160,086
Entity Interactive Data Current	No
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well Known Seasoned Issuer	No
Document Fiscal Year Focus	2024
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	995
Auditor Location	Vancouver, Canada
Auditor Name	Smythe LLP
Document Financial Statement Error Correction [Flag]	false
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