Long-term debt, at amortized cost, consisted of the following as of:

Certain information related to the Senior Notes, Series A and Senior Notes, Series B (collectively the “Notes”) issued pursuant to the Note Purchase and Guarantee Agreement (the “Agreement”) for fiscal 2021 and fiscal 2020 are as follows:

The effective interest rates for each note series includes the interest on the note and amortization of debt issuance costs.

Proceeds from the Notes were used to pay off $800.0 million in short-term borrowings under the Company’s JPM credit facilities used to temporarily finance the acquisition of Oasis in fiscal 2019. Payment of all amounts due with respect to the Notes and performance under the Agreement is guaranteed by the Company, Paychex of New York LLC, and certain other subsidiaries of the Company. The Company may, at its option, prepay at any time all, or any part of, the Notes, subject to certain conditions as described in the Agreement.

The Agreement contains customary representations, warranties, affirmative and negative covenants, including financial covenants that are usual and customary for such arrangements. The Company was in compliance with all these covenants as of May 31, 2021.