1970s
The years that started it all.
The Beginning
B. Thomas Golisano with $3,000, one employee, and 40 clients, founded a new company in Rochester, NY called Paymaster – soon to be Paychex, to provide payroll to small- to-medium sized businesses.
Company Consolidation
Paychex quickly expanded beyond Rochester to include 18 franchises and partnerships, which in 1979 were consolidated into one privately held company.
1980s
Going public and growing fast.
Headquarters Built
Paychex becomes a publicly held company and constructs a new corporate headquarters in Rochester, NY.
New Service: Benefits Services
Paychex introduces its first ever expansion the Benefits Services division.
New Product: Taxpay®
Paychex launches Taxpay®, allowing clients to outsource tax payments and returns with their payroll.
1990s
A decade of major growth.
New Service: Human Resource Services
Paychex introduces Human Resource Services division, offering employee handbooks, insurance, employee evaluation and testing tools.
New Service: Direct Deposit
Paychex introduces Direct Deposit service to Paychex Taxpay® clients as a simple way to save payroll processing costs.
New Service: 401(k) Recordkeeping
Paychex introduces 401(k) Recordkeeping through the Human Resource Services division.
Acquisition
Paychex acquires National Business Solutions and enters the PEO (Professional Employer Organization) business.
New Business: Paychex Insurance Agency
The Paychex Insurance Agency is launched.
2000s
Building for the new millennium.
Partnership with AICPA
The American Institute of Certified Public Accountants (AICPA) Business Solutions Program selected Paychex as its preferred payroll provider.
Thomas Golisano Retires
Paychex founder, B. Thomas Golisano, retires from his position as president and CEO; long-time IBM executive Jonathan J. Judge was named as his successor.
New Service: Paychex Premier® Human Resources
Paychex introduces Paychex Premier® Human Resources to its growing suite of HR products and services.
New Product: Health Savings Accounts
Paychex introduces HSAs as a tool for employers and employees to pay for current and future qualified medical expenses on a tax-free basis.
New Service: Tax Credit Services
Paychex introduces Tax Credit Services, a product that provides businesses with an easy tool to help identify and apply for wage-based tax credits they may be eligible to receive.
2010s
A decade of bold moves.
Martin Mucci Becomes President and CEO
Martin Mucci named president and chief executive officer, succeeding Jonathan J. Judge.
Acquisition
Paychex acquires SurePayroll, Inc., the nation's leading provider of online payroll processing for small businesses.
Acquisition
Paychex acquires ePlan Services, Inc., a provider of recordkeeping and administrative solutions.
New Service: Paychex HR Essentials
Paychex introduces HR Essentials, a human resource offering that extends expert support over the phone or online.
Acquisition
Paychex acquires Nettime Solutions, a cloud-based time and attendance solutions provider.
New Product: Paychex Flex®
Paychex unveils Paychex Flex, which delivers seamless online access to payroll, HR, and benefits information.
Paychex Small Business Jobs Index
Paychex launches a monthly jobs index, examining the state of small business employment in the U.S.
Acquisition
Paychex acquires Advance Partners, a leading provider of integrated financial, operational, and strategic services to support independent staffing firms.
New Products: Time & Attendance and Benefits
Paychex launches Paychex Flex Time and Paychex Flex Benefits Administration, two new modules for its human capital management platform, Paychex Flex.
New Product: Paychex Flex Hiring
Paychex launches Paychex Flex Hiring, giving employers access to recruiting, onboarding, and employee screening functions through Paychex Flex.
One Million Worksite Employees
Paychex now serves more than one million worksite employees, the most among human resource service providers for small and mid-sized businesses.
New Services: Time and Attendance
Paychex introduces Paychex Flex® Time Essentials and Paychex's TrueShift™ Time Clock.
Small Business Employment Watch
The Paychex Small Business Jobs Index expands to include monthly reporting on wage data, thus becoming the Paychex Small Business Employment Watch.
Paychex PEO is IRS Certified
Subsidiaries of Paychex Business Solutions are among the first certified by the IRS to provide PEO services under the Small Business Efficiency Act.
Acquisition
Paychex acquires HROI, a leading professional employer organization, offering outsourced employee benefits, HR services, and payroll.
New Service: Paychex Promise®
Paychex introduces Paychex Promise, a subscription-based service that delivers peace of mind to business owners with protection against payroll interruptions and solutions.
New Product: Learning Management System
Paychex launches Paychex Learning, a web-based learning management system that provides employers with a simple and affordable learning tool.
International Expansion
In March 2018, Paychex acquires Lessor Group, a market-leading provider of payroll and HCM software solutions headquartered in Denmark and serving Northern Europe.
Acquisition
In December 2018, Paychex acquires Oasis Outsourcing, the largest privately owned PEO in the U.S.
2020s
The best is yet to come.
John B. Gibson Becomes President and CEO
John B. Gibson named president and chief executive officer, succeeding Martin Mucci.
New Service: Paychex Flex Perks
Paychex introduces a digital marketplace of curated employee benefits.
New Service: Paychex Flex Engage
Paychex introduces a comprehensive employee engagement solution to help businesses digitally manage their workforce and enhance the employee experience.
New Product: Recruiting Copilot
Paychex launches Paychex Recruiting Copilot leveraging AI to help businesses discover a shortlist of potential candidates.
Acquisitions
In April 2025, Paychex acquires Paycor.
New Service: Paychex Partner Pro
Paychex introduces a new portal designed for accountants.
New Product: Bill Pay
Paychex launches Bill Pay, Powered by BILL.
New Product: WISE AI Platform
Paychex launches Workforce Intelligence Strengthened by Expertise (WISE), the AI-powered intelligence solution transforming business operations across its HCM platforms.