Revenue (Tables)

3 Months Ended

Mar. 31, 2022

Revenue From Contract With Customer [Abstract]

Summary of Total Revenues

The following table disaggregates revenue generated within the United States (“U.S.”) from revenue generated from customers outside of the U.S. Revenue for transaction tax compliance in the U.S. is further disaggregated based on the solutions or services purchased by customers. Total revenues consisted of the following (in thousands):

	For the Three Months Ended March 31,
	2022		2021
Revenue (U.S.):
Subscription and returns
Tax calculations	$	100,500	$	76,396
Tax returns and compliance management		73,727		52,847
Interest income on funds held for customers		208		141
Total subscription and returns		174,435		129,384
Professional services		16,041		13,288
Total revenue (U.S.)		190,476		142,672
Total revenue (non-U.S.)		14,054		10,929
Total revenue	$	204,530	$	153,601

Summary of Activity Impacting Contract Liabilities

A summary of the activity impacting the contract liabilities during the three months ended March 31, 2022 and 2021, is presented below (in thousands):

	For the Three Months Ended March 31,
	2022			2021
Contract liabilities:
Balance beginning of period	$	6,918		$	10,134
Contract liabilities transferred to deferred revenue		(6,622	)		(3,866	)
Addition to contract liabilities		601			6,198
Balance end of period	$	897		$	12,466

Summary of Activity Impacting Deferred Revenue

A summary of the activity impacting deferred revenue balances during the three months ended March 31, 2022 and 2021, is presented below (in thousands):

	For the Three Months Ended March 31,
	2022			2021
Deferred revenue:
Balance beginning of period	$	282,955		$	209,690
Revenue recognized		(204,530	)		(153,601	)
Additional amounts deferred		225,185			169,442
Balance end of period	$	303,610		$	225,531

Summary of Activity Impacting Deferred Commissions

A summary of the activity impacting the deferred commissions during the three months ended March 31, 2022, is presented below (in thousands):

	For the Three Months Ended March 31,
	2022			2021
Deferred commissions:
Balance beginning of period	$	68,519		$	50,870
Additional commissions deferred		6,832			5,695
Amortization of deferred commissions		(4,584	)		(3,335	)
Balance end of period	$	70,767		$	53,230