| Cover Page | Nov. 04, 2021 | May 24, 2021 |
| Cover [Abstract] | ||
| Document Type | 8-K | |
| Document Period End Date | Nov. 4, 2021 | |
| Entity Registrant Name | H&R BLOCK, INC. | |
| Entity Incorporation, State or Country Code | MO | |
| Entity File Number | 1-06089 | |
| 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 | |
| Written Communications | false | |
| Soliciting Material | false | |
| Pre-commencement Tender Offer | false | |
| Pre-commencement Issuer Tender Offer | false | |
| Title of 12(b) Security | Common Stock, without par value | |
| Trading Symbol | HRB | |
| Security Exchange Name | NYSE | |
| Entity Emerging Growth Company | false | |
| Entity Central Index Key | 0000012659 | |
| Amendment Flag | false |
