Condensed Interim Consolidated Statements of Operations and Comprehensive Income (Loss) (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Sales
Total Sales	$ 10,556,291	$ 9,314,937	$ 29,397,115	$ 29,068,548
Cost of sales	8,032,516	5,508,121	19,536,510	18,502,270
Gross profit	2,523,775	3,806,816	9,860,605	10,566,278
Operating Expenses
Advertising and promotion	73,358	52,872	240,035	183,104
Commissions	1,339	12,086	21,300	12,086
Consulting	47,893	82,261	189,970	324,577
Currency exchange	(37,342)	32,633	(2,941)	78,679
Insurance	256,358	280,846	756,187	754,304
Investor relations and transfer agent fee	64,683	39,988	147,728	125,466
Lease expense and rent	34,583	13,820	87,851	56,165
Office and miscellaneous	349,736	267,484	724,691	622,814
Professional fees	120,316	78,703	432,842	262,168
Research and development	255,657	27,806	529,705	216,934
Shipping	6,165	5,186	27,354	20,029
Telecommunications	18,026	16,287	52,859	45,815
Travel	50,290	64,874	129,867	192,314
Utilities	60,692	33,080	283,152	183,012
Wages, administrative salaries and benefits	910,718	884,940	2,700,745	2,838,118
Total operating expenses	2,212,472	1,892,866	6,321,345	5,915,585
Operating income	311,303	1,913,950	3,539,260	4,650,693
Non-operating income (expense)
Gain on investment	(31,181)	32,312	54,479	330,750
Loss on sale of investment		(385,123)		(385,123)
Loss on lease termination				(41,350)
Interest expense	(136,465)	(132,741)	(518,610)	(465,138)
Interest income	61,292	31,565	137,532	141,202
Total non-operating income (expense)	(106,354)	(453,987)	(326,599)	(419,659)
Income before income tax	204,949	1,459,963	3,212,661	4,231,034
Income taxes
Income tax benefit (expense)	181,739	(367,615)	(944,780)	(1,190,044)
Net income	386,688	1,092,348	2,267,881	3,040,990
Net income attributable to non-controlling interests	(890,046)	(480,490)	(1,020,061)	(682,110)
Net income attributable to Flexible Solutions International Inc.	$ (503,358)	$ 611,858	$ 1,247,820	$ 2,358,880
Net income per share (basic)	$ (0.04)	$ 0.05	$ 0.10	$ 0.19
Net income per share (diluted)	$ (0.04)	$ 0.05	$ 0.09	$ 0.19
Weighted average number of common shares (basic)	12,660,923	12,450,532	12,632,338	12,450,257
Weighted average number of common shares (diluted)	12,660,923	12,701,812	13,524,716	12,536,935
Other comprehensive income:
Net income	$ 386,688	$ 1,092,348	$ 2,267,881	$ 3,040,990
Unrealized gain on foreign currency translations	(67,845)	37,935	201,509	100,276
Total comprehensive income	318,843	1,130,283	2,469,390	3,141,266
Comprehensive income – non-controlling interest	(890,046)	(480,490)	(1,020,061)	(682,110)
Comprehensive income attributable to Flexible Solutions International Inc.	(571,203)	649,793	1,449,329	2,459,156
Product [Member]
Sales
Total Sales	10,556,291	9,314,937	26,897,115	29,068,548
Research and Development Services [Member]
Sales
Total Sales			$ 2,500,000