(born 1958) obtained a degree (licentiaat) in Law at Ghent University. She also obtained a diploma (graduaat) in Fiscal Studies at the Fiscale Hogeschool institute of fiscal studies in Brussels.
She worked at PricewaterhouseCoopers Tax Consultants sccrl-bcvba over the period 1981-2014, where since 1991 she was a director, and held the position of Tax Director Global Compliance Services. She was also a member of the TLS (Tax and Legal Services) HR Board of PricewaterhouseCoopers Tax Consultants.
Katelijn was a member of the Belgian Institute of Auditors and Tax Consultants (IAB-IEC), sat on various IAB-IEC committees and was a member of the International Fiscal Association (IFA) and the Brabant Association for Tax and Accounting Professions (BAB Brabant). She has also lectured at and was a member of the examinations board of Fiscale Hogeschool in Brussels.
She has been a managing director of Cera Société de gestion and Almancora Société de gestion since 3 August 2016.
Mrs Callewaert is also a member of the Board of Directors of KBC Group, KBC Bank, KBC Assurances and CBC Bank.