Wolters Kluwer Tax & Accounting Expands Portfolio of Tax & Accounting, ERP Software Solutions in Europe with Acquisition of TopPower

(RIVERWOODS, ILL., May 6, 2011) – Wolters Kluwer Tax & Accounting announced that it has acquired the software company, TopPower, a provider of tax, accounting and ERP software solutions to professionals. TopPower, based in Belgium, will become part of the division’s Belgian business, Kluwer. Wolters Kluwer Tax & Accounting is the global leading provider of tax, accounting and audit solutions and services.

With this acquisition, Wolters Kluwer further expands its offerings in Europe of software solutions in the tax, accounting and ERP markets, with a focus on leveraging technology to enhance professionals’ productivity.

“Through continued investment and innovation, Kluwer continues to advance as a leading software provider in Belgium for SMEs and professionals in the field of tax and accountancy,” said Henri Van Engelen, Managing Director of Wolters Kluwer Tax & Accounting Europe and CEO of Kluwer in Belgium.

“In addition to the topACCOUNT software suite that offers integrated modular accounting and the ERP software, TopPower also offers sector-specific solutions,” Van Engelen noted. “These specialized sector-based solutions combined with the extensive expertise of the TopPower team expand the range of electronic solutions from which Kluwer customers will benefit. At the same time, the 4,500 TopPower clients will benefit from the investment and innovation that come from being part of Wolters Kluwer Tax & Accounting and Kluwer.”

TopPower was established in 1984 and has branches in Poperinge, Deinze and Leuven. Terms of the acquisition were not disclosed.

About Wolters Kluwer Tax & Accounting

Wolters Kluwer Tax & Accounting, a division of Wolters Kluwer, is the global leading provider of tax, accounting and audit information, software and services. Tax, accounting, and audit professionals who serve as trusted advisors to clients and businesses worldwide rely on authoritative content and integrated workflow solutions from global leader Wolters Kluwer Tax & Accounting. Wolters Kluwer had 2010 annual revenues of €3.6 billion, employs approximately 19,000 people worldwide, and maintains operations across Europe, North America, Asia Pacific, and Latin America, serving customers globally. Wolters Kluwer is headquartered in Alphen aan den Rijn, the Netherlands. Its shares are quoted on Euronext Amsterdam (WKL) and are included in the AEX and Euronext 100 indices. Visit our website , YouTube or follow @Wolters_Kluwer on Twitter for more information about our customers, market positions, brands, and organization.

Forward-looking Statements

This press release contains forward-looking statements. These statements may be identified by words such as “expect,” “should,” “could,” “shall,” and similar expressions. Wolters Kluwer cautions that such forward-looking statements are qualified by certain risks and uncertainties that could cause actual results and events to differ materially from what is contemplated by the forward-looking statements. Factors which could cause actual results to differ from these forward-looking statements may include, without limitation, general economic conditions; conditions in the markets in which Wolters Kluwer is engaged; behavior of customers, suppliers, and competitors; technological developments; the implementation and execution of new ICT systems or outsourcing; and legal, tax, and regulatory rules affecting Wolters Kluwer’s businesses, as well as risks related to mergers, acquisitions, and divestments. In addition, financial risks such as currency movements, interest rate fluctuations, liquidity, and credit risks could influence future results. The foregoing list of factors should not be construed as exhaustive. Wolters Kluwer disclaims any intention or obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events, or otherwise.

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