| Cover Page | Dec. 08, 2020 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | Dec. 8, 2020 |
| 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 |
