|  |        |                                                                                |  |  |  |  |  |  |
|--|--------|--------------------------------------------------------------------------------|--|--|--|--|--|--|
|  | þ | ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 |

|  |        |                                                                                    |  |  |  |  |  |  |
|--|--------|------------------------------------------------------------------------------------|--|--|--|--|--|--|
|  |  ̈ | TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 |

----

|                                  |                                                                                                                                                                                                                                                                                                                                                        |  |  |  |  |
|----------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--|--|--|--|
| Items 1-3.                       | The information required by Items 1-3 is not required. See Item 4 below.                                                                                                                                                                                                                                                                               |
|                             |                                                                                                                                                                                                                                                                                                                                                   |
| Item 4.                          | The Cincinnati Financial Corporation Tax-Qualified Savings Plan is subject to the requirements of ERISA. In lieu of the requirements of Items 1-3 above, the Plan Financial Statements and Schedule prepared in accordance with the Financial Reporting requirements of ERISA are attached hereto and incorporated herein by reference. |
|                             |                                                                                                                                                                                                                                                                                                                                                   |
| Financial Statements and Exhibit |
|                             |                                                                                                                                                                                                                                                                                                                                                   |
| 23.1                             | Consent of Independent Registered Public Accounting Firm                                                                                                                                                                                                                                                                                               |
|                             |                                                                                                                                                                                                                                                                                                                                                   |
|                             | Financial statements as of and for the years ended December 31, 2021 and 2020, and supplemental schedule as of December 31, 2021.                                                                                                                                                                                                                      |

|                         |        |                                                                                                                                     |  |  |  |  |  |  |
|-------------------------|--------|-------------------------------------------------------------------------------------------------------------------------------------|--|--|--|--|--|--|
|                    |   | Cincinnati Financial Corporation                                                                                                    |
|                    |   | Tax-Qualified Savings Plan                                                                                                          |
|                    |   | (Name of Plan)                                                                                                                      |
|                    |   |                                                                                                                                |
| DATE: June 14, 2022 |   | /S/ Michael J. Sewell                                                                                                       |
|                    |   | Michael J. Sewell, CPA                                                                                                              |
|                    |   | Chief Financial Officer, Principal Accounting Officer, Executive Vice President, Treasurer and Employee Benefits Committee Chairman |

----

----

|                                                                 |                                                                                                                            |        |  |  |  |  |  |  |
|-----------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------|--------|--|--|--|--|--|--|
|                                                                 |                                                                                                                       | Page   |
|                                                            |                                                                                                                       |   |
| Report of Independent Registered Public Accounting Firm         | 1                                                                                                                          |
|                                                            |                                                                                                                       |
| Financial Statements and Notes to the Financial Statements: |                                                                                                                            |
|                                                            |                                                                                                                       |
|                                                            | Statements of Net Assets Available for Benefits as of December 31, 2021 and 2020                                      | 2      |
|                                                            |                                                                                                                       |   |
|                                                            | Statements of Changes in Net Assets Available for Benefits for the Years Ended      December 31, 2021 and 2020        | 3      |
|                                                            |                                                                                                                       |   |
|                                                            | Notes to Financial Statements as of and for the Years Ended December 31, 2021 and 2020                                | 4      |
|                                                            |                                                                                                                       |   |
| Supplemental Schedule:                                      | 9                                                                                                                          |
|                                                            |                                                                                                                       |
|                                                            | Form 5500, Schedule H, Part IV, Line 4i — Schedule of Assets (Held at End of Year) as of December 31, 2021 | 10     |

|           |                                                                                                                                                                                                                                                        |  |  |  |  |
|-----------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--|--|--|--|
| NOTE: | All other schedules required by Section 2520.103-10 of the Department of Labor’s Rules and Regulations for Reporting and Disclosure under the Employee Retirement Income Security Act of 1974 have been omitted because they are not applicable. |

----

----

|                                                                               |  |                 |                     |              |                 |   |                   |  |  |  |  |  |  |  |
|-------------------------------------------------------------------------------|--|-----------------|---------------------|--------------|-----------------|---|-------------------|--|--|--|--|--|--|--|
| CINCINNATI FINANCIAL CORPORATION                                              |  |            |                     |         |
| TAX-QUALIFIED SAVINGS PLAN                                                    |  |            |                     |         |
|                                                                               |  |                 |                     |              |
| STATEMENTS OF NET ASSETS AVAILABLE FOR BENEFITS |  |            |                     |         |
|                                                                          |  | December 31,    |                     | December 31, |
|                                                                               |  | 2021            |                     | 2020         |
| Assets:                                                                   |  |            |                     |         |
| Participant-directed investments (at fair value)                              |  | $               | 1,061,649,239  |              |                 | $ | 890,476,050  |  |
| Notes receivable from participants                                            |  | 8,431,632  |                     |              | 8,063,026  |   |
| Interest and dividends receivable                                             |  | 292,787    |                     |              | 289,292    |   |
|                                                                               |  |                 |                     |              |
| Net assets available for benefits                                             |  | $               | 1,070,373,658  |              |                 | $ | 898,828,368  |  |
|                                                                               |  |                 |                     |              |
| Accompanying notes are an integral part of these financial statements.        |  |            |                     |         |

----

|                                                                        |  |                          |                     |        |                   |   |                   |  |  |  |  |  |  |  |
|------------------------------------------------------------------------|--|--------------------------|---------------------|--------|-------------------|---|-------------------|--|--|--|--|--|--|--|
| CINCINNATI FINANCIAL CORPORATION                                       |  |                     |                     |   |
| TAX-QUALIFIED SAVINGS PLAN                                             |  |                     |                     |   |
|                                                                        |  |                          |                     |        |
| STATEMENTS OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS             |  |                     |
|                                                                        |  | Years ended December 31, |
|                                                                   |  | 2021                     |                     | 2020   |
| Additions:                                                         |  |                     |                     |   |
| Participant contributions (including rollovers of $5,600,942           |  |                     |                     |   |
| and $6,080,516 in 2021 and 2020, respectively)                         |  | $                        | 47,454,964     |        |                   | $ | 47,742,701   |  |
| Employer contributions                                                 |  | 21,827,933          |                     |        | 21,837,110   |   |
| Total contributions                                                    |  | 69,282,897          |                     |        | 69,579,811   |   |
|                                                                        |  |                          |                     |        |
| Net appreciation in fair value of investments                          |  | 95,032,537          |                     |        | 82,032,373   |   |
| Interest and dividend income                                           |  | 55,909,618          |                     |        | 34,229,074   |   |
| Total investment income                                                |  | 150,942,155         |                     |        | 116,261,447  |   |
| Interest income on notes receivable from participants                  |  | 411,582             |                     |        | 425,773      |   |
| Total additions                                                        |  | 220,636,634         |                     |        | 186,267,031  |   |
|                                                                        |  |                          |                     |        |
| Deductions:                                                        |  |                          |                     |        |
|      Benefits paid to participants and other  |  | 48,792,941          |                     |        | 32,993,457   |   |
| Administrative expenses                                                |  | 298,403             |                     |        | 452,408      |   |
| Total deductions                                                       |  | 49,091,344          |                     |        | 33,445,865   |   |
|                                                                        |  |                          |                     |        |
| Increase in net assets                                                 |  | 171,545,290         |                     |        | 152,821,166  |   |
| Net assets available for benefits:                                 |  |                     |                     |   |
| Beginning of year                                                      |  | 898,828,368         |                     |        | 746,007,202  |   |
| End of year                                                            |  | $                        | 1,070,373,658  |        |                   | $ | 898,828,368  |  |
|                                                                        |  |                          |                     |        |
| Accompanying notes are an integral part of these financial statements. |  |                     |                     |   |

----

|                                                 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|-------------------------------------------------|--|--|--|--|--|--|--|--|--|--|--|--|--|--|
| NOTES TO FINANCIAL STATEMENTS AS OF AND FOR THE |
| YEARS ENDED DECEMBER 31, 2021 AND 2020     |

----

----

----

|                                       |  |                                                               |                     |                                            |               |                                          |               |               |  |   |                   |  |  |   |                     |  |  |  |  |  |  |  |  |  |  |  |
|---------------------------------------|--|---------------------------------------------------------------|---------------------|--------------------------------------------|---------------|------------------------------------------|---------------|---------------|--|---|-------------------|--|--|---|---------------------|--|--|--|--|--|--|--|--|--|--|--|
| At December 31, 2021                  |  | Quoted prices in active markets for identical assets(Level 1) |                     | Significantother observableinputs(Level 2) |               | Significant unobservable inputs(Level 3) |               | Total    |
| Registered investment companies:  |  |                                                          |                     |                                       |               |                                     |               |          |
| Large cap funds                       |  | $                                                             | 309,729,777    |                                            |               | $                                        | —  |               |  | $ | —      |  |  | $ | 309,729,777    |  |
| Mid cap funds                         |  | 168,510,148                                              |                     |                                            | —  |                                          |               | —  |  |   | 168,510,148  |  |
| Small cap funds                       |  | 39,542,941                                               |                     |                                            | —  |                                          |               | —  |  |   | 39,542,941   |  |
| Balanced funds                        |  | 303,037,735                                              |                     |                                            | —  |                                          |               | —  |  |   | 303,037,735  |  |
| International funds                   |  | 71,074,278                                               |                     |                                            | —  |                                          |               | —  |  |   | 71,074,278   |  |
| Bond funds                            |  | 61,860,993                                               |                     |                                            | —  |                                          |               | —  |  |   | 61,860,993   |  |
| Total registered investment companies |  | 953,755,872                                              |                     |                                            | —  |                                          |               | —  |  |   | 953,755,872  |  |
| Cincinnati Financial Stock Fund       |  | 52,952,875                                               |                     |                                            | —  |                                          |               | —  |  |   | 52,952,875   |  |
| Self-directed brokerage accounts      |  | 27,894,222                                               |                     |                                            | —  |                                          |               | —  |  |   | 27,894,222   |  |
| Vanguard Federal Money Market Fund    |  | 27,046,270                                               |                     |                                            | —  |                                          |               | —  |  |   | 27,046,270   |  |
| Total                                 |  | $                                                             | 1,061,649,239  |                                            |               | $                                        | —  |               |  | $ | —      |  |  | $ | 1,061,649,239  |  |
|                                       |  |                                                               |                     |                                            |               |                                          |               |               |
| At December 31, 2020                  |  |                                                               |                     |                                            |               |                                          |               |               |
| Registered investment companies:  |  |                                                          |                     |                                       |               |                                     |               |          |
| Large cap funds                       |  | $                                                             | 250,892,461    |                                            |               | $                                        | —  |               |  | $ | —      |  |  | $ | 250,892,461    |  |
| Mid cap funds                         |  | 150,903,762                                              |                     |                                            | —  |                                          |               | —  |  |   | 150,903,762  |  |
| Small cap funds                       |  | 29,909,690                                               |                     |                                            | —  |                                          |               | —  |  |   | 29,909,690   |  |
| Balanced funds                        |  | 246,140,819                                              |                     |                                            | —  |                                          |               | —  |  |   | 246,140,819  |  |
| International funds                   |  | 59,239,455                                               |                     |                                            | —  |                                          |               | —  |  |   | 59,239,455   |  |
| Bond funds                            |  | 62,674,839                                               |                     |                                            | —  |                                          |               | —  |  |   | 62,674,839   |  |
| Total registered investment companies |  | 799,761,026                                              |                     |                                            | —  |                                          |               | —  |  |   | 799,761,026  |  |
| Cincinnati Financial Stock Fund       |  | 42,129,749                                               |                     |                                            | —  |                                          |               | —  |  |   | 42,129,749   |  |
| Self-directed brokerage accounts      |  | 21,500,849                                               |                     |                                            | —  |                                          |               | —  |  |   | 21,500,849   |  |
| Vanguard Federal Money Market Fund    |  | 27,084,426                                               |                     |                                            | —  |                                          |               | —  |  |   | 27,084,426   |  |
| Total                                 |  | $                                                             | 890,476,050    |                                            |               | $                                        | —  |               |  | $ | —      |  |  | $ | 890,476,050    |  |
|                                       |  |                                                               |                     |                                            |               |                                          |               |               |

----

----

----

|                                                |                                       |                                    |                  |                  |                   |                  |  |  |  |  |  |  |  |  |
|------------------------------------------------|---------------------------------------|------------------------------------|------------------|------------------|-------------------|------------------|--|--|--|--|--|--|--|--|
| CINCINNATI FINANCIAL CORPORATION               |                                       |                               |
| TAX-QUALIFIED SAVINGS PLAN                     |                                       |                                    |             |
|                                           |                                  |                                    |                  |             |
| FORM 5500, SCHEDULE H, PART IV, LINE 4i— |                                       |                               |
| SCHEDULE OF ASSETS (HELD AT END OF YEAR)       |                                       |                               |
| December 31, 2021                              |                                       |                                    |             |
|                                           | Identity of Issuer                    | Description of Investment          | Shares           | Current Value*** |
|                                                | Vanguard Federal Money Market Fund    | Interest bearing money market fund | 27,046,270  |                  | $                 | 27,046,270  |  |
|                                                |                                       |                                    |                  |                  |
| *                                              | Cincinnati Financial Corporation      | Common stock                       | 464,742     |                  | $                 | 52,948,015  |  |
|                                                | Stock Purchase Account                |                                    |                  | 4,860       |                   |
|                                                | Total Cincinnati Financial Stock Fund |                                    |                  | $                | 52,952,875   |                  |
|                                                |                                       |                                    |                  |                  |
|                                                | T. Rowe Price Growth Stock            | Registered investment company      | 881,791     |                  | $                 | 93,769,618  |  |
| *                                              | Fidelity 500 Index Fund               | Registered investment company      | 525,671     |                  | 86,903,885   |                  |
|                                                | Dodge & Cox Stock Fund            | Registered investment company      | 326,823     |                  | 80,156,611   |                  |
|                                                | T. Rowe Price New Horizons            | Registered investment company      | 884,381     |                  | 68,123,853   |                  |
|                                                | Janus Henderson Enterprise            | Registered investment company      | 351,251     |                  | 56,042,084   |                  |
| *                                              | Fidelity Total Bond Fund              | Registered investment company      | 3,942,866   |                  | 40,453,809   |                  |
| *                                              | Fidelity Contrafund                   | Registered investment company      | 1,681,682   |                  | 39,250,457   |                  |
| *                                              | Fidelity International Cap            | Registered investment company      | 2,389,989   |                  | 39,195,827   |                  |
|                                                | Vanguard Mid Cap Index Fund           | Registered investment company      | 471,660     |                  | 32,869,957   |                  |
|                                                | Artisan International Fund            | Registered investment company      | 1,040,080   |                  | 31,878,451   |                  |
|                                                | Vanguard Small Cap Index Fund         | Registered investment company      | 237,895     |                  | 25,778,295   |                  |
|                                                | Vanguard Total Bond Market Index Fund | Registered investment company      | 1,460,853   |                  | 16,346,942   |                  |
|                                                | Allspring Special Small Cap           | Registered investment company      | 314,692     |                  | 13,764,646   |                  |
|                                                | Allspring Special Mid Cap             | Registered investment company      | 226,764     |                  | 11,474,254   |                  |
|                                                | T. Rowe Price Equity Income Fund      | Registered investment company      | 268,108     |                  | 9,649,206    |                  |
|                                                | PIMCO Low Duration Fund               | Registered investment company      | 516,351     |                  | 5,060,242    |                  |
|                                                |                                       |                                    |                  |                  |
| *                                              | Fidelity Freedom Index 2005 Fund      | Registered investment company      | 15,272      |                  | 213,499      |                  |
| *                                              | Fidelity Freedom Index 2010 Fund      | Registered investment company      | 44,281      |                  | 632,336      |                  |
| *                                              | Fidelity Freedom Index 2015 Fund      | Registered investment company      | 257,909     |                  | 4,025,954    |                  |
| *                                              | Fidelity Freedom Index 2020 Fund      | Registered investment company      | 898,885     |                  | 15,514,747   |                  |
| *                                              | Fidelity Freedom Index 2025 Fund      | Registered investment company      | 2,037,611   |                  | 39,896,419   |                  |
| *                                              | Fidelity Freedom Index 2030 Fund      | Registered investment company      | 2,363,852   |                  | 48,908,098   |                  |
| *                                              | Fidelity Freedom Index 2035 Fund      | Registered investment company      | 2,361,951   |                  | 54,750,033   |                  |
| *                                              | Fidelity Freedom Index 2040 Fund      | Registered investment company      | 1,755,007   |                  | 41,523,474   |                  |
| *                                              | Fidelity Freedom Index 2045 Fund      | Registered investment company      | 1,694,993   |                  | 41,645,974   |                  |
| *                                              | Fidelity Freedom Index 2050 Fund      | Registered investment company      | 1,155,178   |                  | 28,428,943   |                  |
| *                                              | Fidelity Freedom Index 2055 Fund      | Registered investment company      | 820,938     |                  | 16,615,782   |                  |
| *                                              | Fidelity Freedom Index 2060 Fund      | Registered investment company      | 564,463     |                  | 9,674,888    |                  |
| *                                              | Fidelity Freedom Index 2065 Fund      | Registered investment company      | 40,853      |                  | 565,815      |                  |
| *                                              | Fidelity Freedom Index Income Fund    | Registered investment company      | 50,653      |                  | 641,773      |                  |
|                                           | Total registered investment company   |                                    |                  | $                | 953,755,872  |                  |
|                                           |                                  |                               |                  |                  |
|                                           | Self-directed brokerage accounts      | Various                            |                  | $                | 27,894,222   |                  |

----

|                                                |                                                                                                        |                           |        |                  |                     |  |  |  |  |  |  |  |  |  |
|------------------------------------------------|--------------------------------------------------------------------------------------------------------|---------------------------|--------|------------------|---------------------|--|--|--|--|--|--|--|--|--|
| CINCINNATI FINANCIAL CORPORATION               |                                                                                                        |                      |
| TAX-QUALIFIED SAVINGS PLAN                     |                                                                                                        |                           |   |
|                                           |                                                                                                   |                           |        |             |
| FORM 5500, SCHEDULE H, PART IV, LINE 4i— |                                                                                                        |                      |
| SCHEDULE OF ASSETS (HELD AT END OF YEAR)       |                                                                                                        |                      |
| December 31, 2021                              |                                                                                                        |                           |   |
|                                           | Identity of Issuer                                                                                     | Description of Investment | Shares | Current Value*** |
|                                           | Total participant-directed investments                                                                 |                           |        | $                | 1,061,649,239  |  |
|                                                |                                                                                                        |                           |        |                  |
| *                                              | Participant loans**                                                                                    |                      |        | $                | 8,431,632      |  |
|                                           |                                                                                                   |                      |        |             |
| *                                              | Party-in-interest                                                                                      |                      |        |             |
| **                                             | The interest rates on these loans range from 4.25% to 6.75%, with maturity dates through May 2038.     |
| ***                                            | Cost information is not required for participant-directed investments and, therefore, is not included. |
|                                                |                                                                                                        |                           |        |                  |
|                                                | See Accompanying Report of Independent Registered Public Accounting Firm.                              |                           |