Income Taxes (Tables)

9 Months Ended

Oct. 03, 2021

Reconciliation of Effective Tax Rate

A reconciliation of the United States federal statutory corporate tax rate to Teradyne’s effective tax rate was as follows:

	For the Three Months Ended						For the Nine Months Ended
	October 3, 2021			September 27, 2020			October 3, 2021			September 27, 2020
U.S. statutory federal tax rate		21.0	%		21.0	%		21.0	%		21.0	%
Foreign taxes		(4.4	)		(6.9	)		(4.4	)		(5.8	)
Tax credits		(1.9	)		(1.6	)		(1.4	)		(1.6	)
International provisions of the U.S. Tax Cuts and Jobs Act of 2017		(1.5	)		3.0			(1.6	)		0.5
Discrete benefit related to equity compensation		(0.1	)		(0.4	)		(1.6	)		(1.4	)
Other, net		0.7			0.5			0.7			0.6
Effective tax rate		13.8	%		15.6	%		12.7	%		13.3	%