5. GOODWILL AND INTANGIBLE ASSETS

Goodwill was $8,248,107 as of September 30, 2019 and December 31, 2018.

Definite-lived intangible assets were as follows:


	As of September 30, 2019
	Gross		Accumulated		Net Carrying
	Amount		Amortization		Amount
Trade name	$	1,169,000	$	(97,417)	$	1,071,583
Existing technology (1)		436,814		(65,330)		371,484
Non-competition agreements		125,000		(34,722)		90,278
Customer contracts		740,000		(61,667)		678,333
Software		225,000		—		225,000
Licensing agreement		210,000		—		210,000
Total	$	2,905,814	$	(259,136)	$	2,646,678
(1) Includes capitalized software development costs.
	As of December 31, 2018
	Gross		Accumulated		Net Carrying
	Amount		Amortization		Amount
Trade name	$	1,169,000	$	(9,742)	$	1,159,258
Existing technology		297,000		(4,950)		292,050
Non-competition agreements		125,000		(3,472)		121,528
Customer contracts		740,000		(6,167)		733,833
Software		225,000		—		225,000
Total	$	2,556,000	$	(24,331)	$	2,531,669
				—

Amortization expense for definite-lived intangible assets for three and nine months ended September 30, 2019 was $83,439 and $234,805, respectively. Amortization expense for definite-lived intangible assets for three and nine months ended September 30, 2018 was zero.

We estimate expected amortization related to definite-lived intangible assets at September 30, 2019 will be:


Expected amortization
Remaining 2019	$	82,762
2020		466,071
2021		528,807
2022		331,206
2023		298,180
2024 and thereafter		939,652
Total	$	2,646,678