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LAW SUPPORT

Thomas Claes

Senior Legal Advisor — Corporate tax, VAT, tax compliance, and annual accounts for international businesses in Belgium.

Thomas Claes — Senior Legal Advisor, Tax & Accounting at LawSupport

Thomas Claes

Senior Legal Advisor — Tax & Accounting
Master of Laws (LL.M.), Tax Law, UGent, 2015
11 years experience
English, Dutch, French, German
Corporate Tax VAT Tax Compliance Annual Accounts

About Thomas

Thomas heads the tax and accounting advisory practice. He graduated from UGent with a specialisation in tax law and began his career at PwC Belgium, where he spent four years advising multinational clients on Belgian corporate tax, VAT structuring, and transfer pricing. At LawSupport, he manages all tax consulting, VAT registration, annual accounts filing, and payroll advisory matters for international businesses operating in Belgium.

Thomas works primarily with SMEs, start-ups, and foreign-owned subsidiaries entering the Belgian market. His clients range from technology companies and e-commerce operators to financial services firms requiring IFRS-compliant bookkeeping. A recurring focus is helping non-EU founders understand Belgian corporate tax obligations from day one — avoiding common pitfalls around VAT registration timing, deductibility rules, and the SME reduced rate threshold.

He is a member of the Institute of Chartered Accountants in Belgium (IAB/IEC) and regularly attends SPF Finances update seminars on corporate tax reform. Thomas advises clients on R&D tax incentives (innovation income deduction, investment deduction), transfer pricing documentation for Belgian entities, and the notional interest deduction — tools that can meaningfully reduce effective tax rates for well-structured businesses.

Career History

  • Senior Legal Advisor, LawSupport (2021 – Present)Heads the tax and accounting advisory practice, managing all tax consulting, VAT registration, annual accounts, and payroll matters.
  • Senior Tax Advisor, Belgian Accounting Firm (2019 – 2021)Provided senior-level tax advisory services for domestic and international corporate clients.
  • Intern → Tax Consultant, PwC Belgium (2015 – 2019)Advised multinational clients on Belgian corporate tax, VAT structuring, and transfer pricing at one of the Big Four.

Education

Master of Laws (LL.M.), specialisation in Tax Law — UGent, 2015

Work With Thomas

Schedule a free consultation to discuss your tax, VAT, or accounting needs in Belgium.

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