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Cover - shares
 2 Months Ended 14 Months Ended
Jun. 30, 2021
Jun. 30, 2021
Jul. 30, 2021
Cover [Abstract]      
Document Type 10-QT    
Document Quarterly Report   false  
Document Period End Date Jun. 30, 2021    
Document Transition Report   true  
Document Period Start Date May 01, 2021    
Entity File Number 1-06089    
Entity Registrant Name H&R Block, Inc.    
Entity Incorporation, State or Country Code   MO  
Entity Tax Identification Number   44-0607856  
Entity Address, Address Line One One H&R Block Way    
Entity Address, City or Town Kansas City    
Entity Address, State or Province MO    
Entity Address, Postal Zip Code 64105    
City Area Code 816    
Local Phone Number 854-3000    
Title of 12(b) Security   Common Stock, without par value  
Trading Symbol   HRB  
Security Exchange Name   NYSE  
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity Common Stock, Shares Outstanding     178,055,084
Amendment Flag   false  
Document Fiscal Year Focus   2021  
Document Fiscal Period Focus   FY  
Entity Central Index Key   0000012659  
Current Fiscal Year End Date   --06-30