Expands Thomson Tax & Accounting's services offering to corporations

STAMFORD, Conn. and NEW YORK, Oct. 5 /PRNewswire-FirstCall/ -- The Thomson Corporation (NYSE: TOC; TSX: TOC), a leading provider of information solutions to business and professional customers worldwide, today announced that it has completed the acquisition of Deloitte Tax LLP's Property Tax Services business (PTS).

(Logo: http://www.newscom.com/cgi-bin/prnh/20020227/NYW014LOGO )

"We are pleased to welcome the PTS employees to Thomson Tax & Accounting and look forward to leveraging the strength of both businesses to offer corporate clients seamless property tax compliance services," said Roy M. Martin, Jr., President and Chief Executive Officer, Thomson Tax & Accounting.

PTS, which will be known as Thomson Property Tax Services, is a national provider of property tax compliance outsourcing and consulting services, such as real estate appeals and complex property tax consulting. Its expansive national network of more than 420 professionals is now part of the Tax & Accounting segment of Thomson, which provides leading technology and integrated information solutions to accounting, tax and corporate finance professionals in accounting firms, corporations, law firms and government.

"By combining PTS with Thomson Tax & Accounting, we are securing future growth for the business and its employees," said Chet Wood, Chairman and CEO, Deloitte Tax LLP. "The synergies resulting from this combination will truly advance the products and services offered to property tax customers."

PTS will align with Thomson Tax & Accounting's ePropertyTax product line, which offers corporate tax departments solutions to manage their property tax compliance needs, ranging from licensing of its proprietary Web-native property tax software system to compliance outsourcing services. PTS will enhance the ePropertyTax product line with its value-added consulting services for real estate property tax appeals and complex property tax consulting, as well as its national footprint in the market.

"PTS is a highly complementary addition to our existing property tax technology," said Brian Peccarelli, President, Thomson Tax & Accounting's Corporate Software & Services business. "By integrating the PTS business with our existing ePropertyTax brand, Thomson Tax & Accounting will provide the most comprehensive property tax compliance solution available to corporations."

Financial terms of the transaction were not disclosed.

The Thomson Corporation

The Thomson Corporation (www.thomson.com) is a global leader in providing essential electronic workflow solutions to business and professional customers. With operational headquarters in Stamford, Conn., Thomson provides value-added information, software tools and applications to professionals in the fields of law, tax, accounting, financial services, scientific research and healthcare. The Corporation's common shares are listed on the New York and Toronto stock exchanges (NYSE: TOC; TSX: TOC).

Thomson Tax & Accounting, a segment of Thomson, is a leading provider of technology and integrated information solutions to accounting, tax and corporate finance professionals in accounting firms, corporations, law firms and government. Thomson Tax & Accounting includes the Professional Software & Services, Corporate Software & Services, and Research & Guidance businesses. ePropertyTax is a brand of the Corporate Software & Services business.

This news release includes forward-looking statements which are based on certain assumptions and reflect The Thomson Corporation's current expectations. All forward-looking statements in this news release are subject to a number of risks and uncertainties that could cause actual results or events to differ materially from current expectations. Some of the factors that could cause actual results to differ materially from current expectations include risks related to Thomson Tax & Accounting's ability to successfully integrate the Deloitte Tax LLP Property Tax Services business after the closing, and actions of Thomson Tax & Accounting's competitors. Additional factors are discussed in the Corporation's materials filed with the securities regulatory authorities in Canada and the United States from time to time, including the Corporation's latest annual information form, which is contained in its most recently filed annual report on Form 40-F. The Corporation disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, other than as required by law.

    Media Contact:                   Investor Contact:

    Fred Hawrysh                     Frank J. Golden
    Global Director,                 Vice President, Investor Relations
    External Communications          (203) 539-8470
    (203) 539-8314                   frank.golden@thomson.com
    fred.hawrysh@thomson.com


    Kathy Lofland
    Sr. Director, Corporate Communications
    Thomson Tax & Accounting
    (972) 250-8843
    kathy.lofland@thomson.com


SOURCE  The Thomson Corporation
    -0-                             10/05/2007
    /CONTACT:  Fred Hawrysh, Global Director, External Communications,
+1-203-539-8314, fred.hawrysh@thomson.com, or Kathy Lofland, Sr. Director,
Corporate Communications, Thomson Tax & Accounting, +1-972-250-8843,
kathy.lofland@thomson.com, or Investor Contact, Frank J. Golden, Vice
President, Investor Relations, +1-203-539-8470, frank.golden@thomson.com/
    /Photo:  NewsCom:  http://www.newscom.com/cgi-bin/prnh/20020227/NYW014LOGO
              PRN Photo Desk, photodesk@prnewswire.com/
    /Web site:  http://www.thomson.com /
    (TOC TOC.)

CO:  The Thomson Corporation; Deloitte Tax LLP
ST:  New York, Connecticut
IN:  FIN
SU:  TNM ACC

TY-PM
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