Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Revenues
Total revenues	$ 998,129	$ 920,718	$ 3,084,108	$ 2,823,067
Cost of revenues	(399,993)	(357,689)	(1,153,507)	(1,170,484)
Gross profit	598,136	563,029	1,930,601	1,652,583
Operating expenses:
Selling, general and administrative expenses	765,227	994,410	2,404,599	2,973,669
Depreciation and amortization	788	324	2,364	974
Bad debt expense (recovery)	(12,549)	40,520	(35,561)	(24,147)
Total operating expenses	753,466	1,035,254	2,371,402	2,950,496
Operating Loss	(155,330)	(472,225)	(440,801)	(1,297,913)
Other Income (Expense):
Interest income	2	1	8	17
Gain on derivative liabilities	33,032	305,914	129,346	925,812
Non-operating penalties			(125,850)
Forbearance fees				(6,000)
Interest expense	(523,875)	(374,914)	(1,432,364)	(1,393,517)
Net loss before non-controlling interest and income tax expense (benefit)	(646,171)	(541,224)	(1,869,661)	(1,771,601)
Income tax expense (benefit)	19,028	(41,185)	153,023	79,014
Net loss before non-controlling interest	(665,199)	(500,039)	(2,022,684)	(1,850,615)
Net loss attributable to non-controlling interest	25,582	42,939	89,567	79,800
Net loss attributable to Vertical Computer Systems, Inc.	(639,617)	(457,100)	(1,933,117)	(1,770,815)
Dividends applicable to preferred stock	(155,600)	(155,604)	(466,800)	(462,009)
Net loss available to common stockholders	$ (795,217)	$ (612,704)	$ (2,399,917)	$ (2,232,824)
Basic and diluted net loss per share (in dollars per share)	$ (0.00)	$ (0.00)	$ (0.00)	$ (0.00)
Basic weighted average common shares outstanding (in shares)	1,151,162,484	1,138,224,766	1,149,804,908	1,134,412,731
Diluted weighted average common shares outstanding (in shares)	1,207,520,965	1,138,224,766	1,206,163,389	1,134,412,731
Comprehensive loss
Net loss	$ (665,199)	$ (500,039)	$ (2,022,684)	$ (1,850,615)
Translation adjustments	(6,152)	(66,383)	84,129	(101,563)
Comprehensive loss	(671,351)	(566,422)	(1,938,555)	(1,952,178)
Comprehensive loss attributable to non-controlling interest	25,582	42,939	89,567	79,800
Comprehensive loss attributable to Vertical Computer Systems, Inc.	(645,769)	(523,483)	(1,848,988)	(1,872,378)
Licensing and Software [Member]
Revenues
Total revenues	50,000	294	150,081	811
Software Maintenance [Member]
Revenues
Total revenues	744,960	774,276	2,320,619	2,371,052
Cloud-Based Offering [Member]
Revenues
Total revenues	54,041	48,648	143,093	174,315
Consulting Services [Member]
Revenues
Total revenues	134,874	88,472	438,714	264,964
Other [Member]
Revenues
Total revenues	$ 14,254	$ 9,028	$ 31,601	$ 11,925