Income Taxes

6 Months Ended

Sep. 30, 2019

Income tax expense and the effective income tax rate were as follows:



	Three Months Ended September 30,						Six Months Ended September 30,
	2019			2018			2019			2018
Income tax expense	$	19,413		$	15,403		$	9,159		$	6,759
Effective income tax rate	20.0		%	17.2		%	13.5		%	13.3		%

The tax provisions for the three and six months ended September 30, 2019 and 2018 were computed using the estimated effective income tax rates applicable to each of the domestic and foreign taxable jurisdictions for the full fiscal year and were adjusted for discrete items that occurred within the periods presented.

During the three months ended September 30, 2019, the increase in the effective income tax rate, compared to the prior period, was due to changes in the jurisdictional mix of worldwide income before income taxes forecasted for the fiscal year ending March 31, 2020, as well as an increase in net discrete tax expenses, primarily driven by favorable return to provision differences in the prior period. During the six months ended September 30, 2019, the increase in the effective income tax rate, compared to the prior period, was due to changes in the jurisdictional mix of worldwide income before income taxes forecasted for the fiscal year ending March 31, 2020, partially offset by a net discrete tax benefit, primarily driven by the favorable settlement of a state income tax audit recorded during the current period.

Due to the enactment of the Tax Cuts and Jobs Act (Tax Reform Act) in December 2017, the Company is subject to US taxation of its foreign subsidiary earnings considered global intangible low-taxed income, as well as limitations on the deductibility of executive compensation, which are included in income tax expense in the condensed consolidated statements of comprehensive income for the periods presented above. The Company continues to evaluate new guidance and legislation as it is issued.

Unrecognized Tax Benefits. During the six months ended September 30, 2019, the amount of gross unrecognized tax benefits and associated penalties and interest increased by $2,700 to $16,098, primarily related to state income tax reserves recorded in income tax liability in the condensed consolidated balance sheets.