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Income Taxes (Tables)
9 Months Ended
Sep. 27, 2020
Reconciliation of Effective Tax Rate
A reconciliation of the United States federal statutory corporate tax rat
e
 to Teradyne’s effective tax rate was as follows:
 
    
For the Three Months
Ended
   
For the 
Nin
e
 Months
Ended
 
    
September
 27
,
2020
   
September
 
29
,
2019
   
September
 
27
,
2020
   
September
 
29
,
2019
 
US statutory federal tax rate
     21.0     21.0     21.0     21.0
I
n
ternational provisions of the U.S. Tax
C
uts and

Jobs Act 
o
f 2017
     3.6       1.2       0.7       1.0  
Foreign taxes
     (6.9     (5.1     (5.8     (4.9
Tax cre
dits
     (1.1     (1.8     (1.4     (2.2
Discrete (benefit) expense
 related to
 the
internat
ional provisions of the U.S. 
Tax 
C
uts
and Jobs Act of 2017
     (0.6     (4.0     (0.2     2.3  
Discrete
(
benefit
) expense
related to
release of
reserve
s
for uncertain tax positions
 
     (0.5     0.1       (0.2     (6.9
Discrete benefit related to equity compensation
     (0.4     (0.7     (1.4     (1.5
Other, net
     0.5       (0.2     0.6       0.4  
  
 
 
   
 
 
   
 
 
   
 
 
 
Effective tax rate
     15.6     10.5     13.3     9.2