CCH Expands State Tax Offerings with Acquisition of Vertex® Property Tax Reference Manual

(RIVERWOODS, ILL. February 6, 2006) – CCH, a Wolters Kluwer business and a leading provider of tax and accounting information, software and services, announced today that it has acquired the Property Tax Reference from Vertex Inc.

The Property Tax Reference joins CCH’s authoritative and popular line of state tax online, print and CD-rom products for tax, accounting and compliance professionals.

CCH and Vertex have implemented a transition program under which CCH will begin fulfilling Property Tax Reference orders and updates in February, 2006 . The product will be re-branded immediately as the CCH Property Tax Reference.

“CCH is committed to providing professionals with the most authoritative, comprehensive research resources available. We’re pleased to be able to expand our line of market-leading state tax offerings with the Property Tax Reference , which offers extensive property tax information at the local level, covering a wide array of jurisdictions,” said Angela Darrow, CCH product manager.

“CCH has a strong reputation for topical expertise and analysis in the state and local tax arena. We felt our customers would be well-served as part of the CCH family, which offers both trusted tax expertise and excellent customer service,” said Ed Wallace, vice president, Corporate Business Development for Vertex.

For More Information

Those seeking customer service account administration or product support for their Property Tax Reference subscriptions can contact CCH Customer Service directly, beginning February 2006 at 800-344-3734.

About CCH, a Wolters Kluwer business

CCH, a Wolters Kluwer business (tax.cchgroup.com) is a leading provider of tax, audit and accounting information, software and services. It has served tax, accounting and business professionals and their clients since 1913. Among its market-leading products are The ProSystem fx® Office, CCH® Tax Research NetWork™, Accounting Research Manager™ and the U.S. Master Tax Guide®. CCH is based in Riverwoods, Ill.

Wolters Kluwer is a leading multinational publisher and information services company. Wolters Kluwer has annual revenues (2004) of €3.3 billion, employs approximately 18,400 people worldwide and maintains operations across Europe, North America and Asia Pacific. Wolters Kluwer is headquartered in Amsterdam, the Netherlands (www.wolterskluwer.com). Its depositary receipts of shares are quoted on the Euronext Amsterdam (WKL) and are included in the AEX and Euronext 100 indices.

About Vertex Inc.

Vertex Inc. is the leading provider of tax technology solutions featuring products and process management services for more than 10,000 customers worldwide. Vertex solutions help companies streamline tax compliance processes and leverage information to discover new strategic tax savings that enhance decision information across every major line of business tax including income, sales, consumer use, value added, communications and payroll. To serve its customers, Vertex works in partnership with leading software and service providers, including SAP, Oracle, Microsoft®, IBM, and PeopleSoft.

Founded in 1978, Vertex is a privately held company that employs over 600 professionals at its headquarters in Berwyn, Pa. and offices in Arizona, Atlanta, Chicago, Dallas, Sarasota and Washington, D.C. For more information about Vertex, visit vertexinc.com.

-- ### --

nb-06-40