Company: PAYX
Filing Date: 2025-04-08
Form Type: 424B2
Source: 0001193125-25-075170
Chunk: 69

Company: PAYCHEX INC
Filing Date: 2025-04-08
Form: 424B2
Chunk 69
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 by either the trustee or holders of not less than twenty-five percent (25%) in aggregate principal amount of the outstanding debt securities of such series; |

| • |     | certain events of bankruptcy, insolvency or reorganization of us; or |

| • |     | any other Event of Default provided in the applicable resolution of our board of directors or the officer’s 
 certificate or supplemental indenture under which we issue such series of debt securities.                  |

An Event of Default for a particular series of debt securities does not necessarily constitute an Event of Default for any other series of debt securities issued under the indenture. If an Event of Default (other than an Event of Default relating to events of bankruptcy, insolvency or reorganization of us) involving any series of debt securities has occurred and is continuing, the trustee or the holders of not less than twenty-five percent (25%) in aggregate principal amount of the outstanding debt securities of each affected series may declare the entire principal amount of all the debt securities of such affected series, and the interest accrued thereon, if any, to be due and payable immediately. The holders of not 9

less than a majority in aggregate principal amount of the debt securities of all affected series (voting together as a single class) may, after satisfying conditions, rescind and annul any of the above-described declarations and consequences involving such series, except in the case of an Event of Default regarding payment of principal, any premium or interest, in which case the holders of a majority in aggregate principal amount of the outstanding debt securities of each affected series shall vote to waive such Event of Default as a separate class. If an Event of Default relating to events of bankruptcy, insolvency or reorganization of us occurs and is continuing, then the entire principal amount of all of the debt securities outstanding, and the interest accrued thereon, if any, will automatically become due and payable immediately, without any declaration or other act by the trustee or any holder. The indenture imposes limitations on suits brought by holders of debt securities against us with respect to an Event of Default. Except as provided below, no holder of debt securities of any series may institute any action against us under the indenture unless:

| • |     | an Event of Default has occurred and is continuing and such holder has previously given to the trustee written 
 notice of such continuing Event of Default;                                                                    |

| • |     | the holders of not less than twenty-five percent (25%) in aggregate principal amount of the outstanding debt                
 securities of the affected series