Income Taxes (Tables)

9 Months Ended

Sep. 29, 2024

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
	September 29, 2024			October 1, 2023			September 29, 2024			October 1, 2023
U.S. statutory federal tax rate		21.0	%		21.0	%		21.0	%		21.0	%
Non-deductible officers' compensation		0.5			1.3			0.4			1.1
Tax credits		(5.0	)		(9.3	)		(3.6	)		(5.0	)
Discrete expense (benefit) related to reserves for uncertain tax positions		(4.9	)		0.3			(2.2	)		0.1
Foreign taxes		(4.9	)		(1.5	)		(3.3	)		(1.1	)
International provisions of the U.S. Tax Cuts and Jobs Act of 2017		(0.8	)		(3.1	)		(1.1	)		(2.9	)
Other, net		1.9			2.5			0.8			0.8
Effective tax rate		7.8	%		11.2	%		12.0	%		14.0	%