ADP Announces Acquisition of MasterTax

Expands Portfolio of Payroll Tax Filing and Compliance Services to Provide Clients Enhanced Flexibility and Choice

Oct 07, 2010, 09:00 ET from Automatic Data Processing, Inc.

ROSELAND, N.J., Oct. 7 /PRNewswire-FirstCall/ -- ADP ®, a leading provider of HR, payroll and benefits administration services, today announced that it has acquired MasterTax, LLC and MasterTax Services, LLC, collectively a leading provider of payroll tax and compliance software and services.  The terms of the transaction were not disclosed.

Based in Scottsdale, Ariz., MasterTax provides Fortune 1000 companies and other clients with comprehensive payroll tax and compliance services covering more than 10,000 tax jurisdictions in the United States and Canada.  MasterTax's services range from the in-house deployment of its award-winning tax filing software to the complete outsourcing of the payroll tax function through MasterTax Services.  As such, the addition of MasterTax will enhance the depth, breadth and reach of ADP's tax and compliance offering with greater flexibility to respond to client needs.

"As an industry leader in payroll tax filing, ADP's acquisition of MasterTax underscores our commitment to offering the broadest, most comprehensive payroll tax and compliance offering in the market," said Kathy Amooi, Senior Division Vice President and General Manager, ADP Tax and Financial Services.  "We look forward to leveraging our combined expertise in tax and compliance services, as well as introducing MasterTax's clients to ADP's broad offering of proven solutions."

Since its debut in 1997, MasterTax has become one of the most popular payroll tax filing software programs in the industry and is utilized by large, multinational companies, as well as a wide array of payroll service providers and professional employer organizations.  It offers a complete solution to schedule, pay, balance, file and analyze payroll taxes, enabling businesses to reduce the burden of tax filing, save valuable time and focus on their core competencies.

"For more than a decade, MasterTax has achieved steady, consistent growth due to its proven expertise in payroll tax compliance, its commitment to customer service excellence and its best-in-class payroll tax filing software," said Richard Warneka, President of MasterTax.  "Going forward, we are convinced that MasterTax will be better positioned to thrive and realize its full future growth potential as part of ADP, a world-class organization with tremendous scale, assets and synergistic expertise in the payroll tax and compliance arena."

About ADP

Automatic Data Processing, Inc. (Nasdaq: ADP), with nearly $9 billion in revenues and about 550,000 clients, is one of the world's largest providers of business outsourcing solutions.  Leveraging over 60 years of experience, ADP offers a wide range of HR, payroll, tax and benefits administration solutions from a single source.  ADP's easy-to-use solutions for employers provide superior value to companies of all types and sizes.  ADP is also a leading provider of integrated computing solutions to auto, truck, motorcycle, marine and recreational vehicle dealers throughout the world.  For more information about ADP or to contact a local ADP sales office, reach us at 1.800.225.5237 or visit the company's website at

About MasterTax, LLC

MasterTax, LLC, provides payroll tax compliance solutions to quickly and efficiently complete the payroll tax process. MasterTax's best-in-class suite of products and services provides users with the ability to quickly schedule, pay, balance and file payroll taxes.  MasterTax is headquartered in Scottsdale, Arizona.  For more information about MasterTax, visit

For more information, contact:

ADP Public Relations

(973) 974-7612

Christian Harper, Weber Shandwick for ADP

(212) 445-8135

Raymond Ng, MasterTax, LLC

(480) 778-8707

SOURCE Automatic Data Processing, Inc.