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Income Tax Income Tax Disclosure
3 Months Ended
Apr. 30, 2021
Income Tax Disclosure [Abstract]  
Income Tax Disclosure INCOME TAXES
The Company’s effective tax rate varies from the federal statutory rate primarily due to state and local taxes and R&D tax credits. The Company’s effective tax rates were as follows:
Three Months Ended
April 30,
2021
April 30,
2020
Effective tax rate17.1 %(13.8)%
The increase in the effective tax rate year-over-year was driven primarily by an increase in estimated pre-tax income in the current fiscal year. The Company operates both domestically and internationally. As of April 30, 2021, undistributed earnings from the Company's foreign subsidiaries were considered to have been reinvested indefinitely.