Exhibit 99.1 Paycom Software, Inc. Reports First Quarter 2024 Results First Quarter Revenues of 500million,up11247 million, representing 49% of total revenues, or 4.37perdilutedshareFirstQuarterNon−GAAPNetIncomeof147 million, or 2.59perdilutedshareFirstQuarterAdjustedEBITDAof230 million, representing 46% of total revenues OKLAHOMA CITY – May 1, 2024 – (BUSINESS WIRE) – Paycom Software, Inc. ("Paycom," "we" a ...