Nabil Lahham is a Canadian indirect tax and accounting professional with extensive experience helping businesses reduce tax exposure, strengthen compliance, recover overpaid taxes, and navigate complex federal and provincial tax requirements. His expertise spans GST/HST, PST, QST, sales tax recovery, tax audits, indirect tax advisory, M&A tax due diligence, and tax technology.
Nabil currently serves as Director General of The Dominion Audit Corporation, where he leads the firm's indirect tax practice and advises businesses on complex sales tax matters. His work includes representing clients in federal and provincial sales tax audits, identifying tax recovery opportunities, advising on the indirect tax implications of mergers and acquisitions, supporting tax objections and appeals, and developing practical solutions to improve tax compliance and reporting.
Throughout his career, Nabil has held progressive accounting, tax, financial, and advisory positions with organizations including Ryan Tax, TD Bank, The Home Depot, The Lebanese International University, and Clariant. He has delivered measurable results in tax recovery, compliance, process improvement, financial analysis, and client service, and has received multiple performance and service awards in recognition of his professional contributions.
Nabil combines deep technical tax knowledge with strong analytical and technology capabilities. His experience includes ERP and financial systems such as Oracle, SAP, Salesforce, TaxPrep, and Microsoft Dynamics, as well as advanced Excel, VBA, Power Query, SQL, and Power BI applications. He has developed technology-enabled tax compliance and reconciliation solutions designed to improve accuracy, efficiency, and reporting.
Nabil holds graduate-level qualifications in accounting, finance, and applied economics and is currently pursuing the Association of Chartered Certified Accountants (ACCA) qualification to further strengthen his professional expertise in accounting, financial reporting, taxation, and business advisory.
Nabil brings a multidisciplinary and international perspective to his work. He is recognized for his analytical approach, technical accuracy, clear communication, and ability to translate complex tax and financial matters into practical business solutions.
Beyond his professional work, Nabil is a second-degree black belt in Shotokan Karate and actively volunteers in tax clinics, where he contributes his knowledge and experience to support individuals and communities in need.