Ahdianto has been recognized as a Highly Regarded Practitioner in both Tax Controversy and Indirect Tax by ITR World Tax. He was also named as an Asia Tax Disputes & Litigation Practice Leader Finalist (Individual Awards) at the prestigious International Tax Review Asia Tax Awards in 2025, 2021, 2018, and 2017. Under his leadership, the GNV tax litigation team earned acclaim as Indonesia’s Tax Disputes and Litigation Firm, winning top honors at the ITR Asia Tax Awards in both 2020 and 2018.
With over 26 years of expertise, Ahdianto is a seasoned tax and customs partner specializing in tax, customs, and business consulting. His in-depth knowledge spans both national and cross-border tax matters, as well as a broad range of customs issues. Previously, he led as Head of Indirect Taxes at Deloitte Indonesia. Ahdianto has consistently achieved successful outcomes representing clients in the Tax Court on complex tax and customs disputes.
- Tax allowance approval for a major mining company. Acted as lead partner in advising one of Indonesia’s largest mining companies on obtaining tax allowance approval. The engagement resulted in approval of significant tax allowance benefits, achieving a highly satisfactory outcome for the client.
- Full success in royalty-related Tax Court disputes. Acted as lead partner in representing one of Indonesia’s leading health and beauty retailers, trusted by millions of customers nationwide, in Tax Court disputes concerning royalties to its parent company. Secured a 100% success rate in the cases handled.
- Acted as lead partner in assisting one of the world’s largest cosmetics companies in pursuing a Mutual Agreement Procedure (MAP) with Indonesia’s Directorate General of Taxes (DGT), securing a highly favourable resolution of cross-border tax disputes with significant benefits for the client.
- Acted as lead partner in representing a Japanese heavy equipment manufacturer in Tax Court VAT disputes concerning the transfer of factory land. Achieved a 100% success rate in cases involving substantial disputed VAT amounts.
- Corporate tax matters
- APAs
- Financial services
- M&A
- Restructuring
- Technology
- Transactions
- Dispute resolution
- Audit defence
- Controversy management
- Litigation
- MAPs/ADRs
- Indirect tax
- Customs
- VAT
- Tax advisory
- International tax advisory
- Tax consulting
- Transfer pricing
- Audit defence
- Audit support
- Controversy management
- Dispute resolution
- Litigation
- Agriculture
- Automotive
- Banking
- Construction and materials
- Consumer goods and services
- Financial services
- Healthcare
- Industrials
- Mining
- Natural resources
- Oil and gas
- Pharmaceutical and life sciences
- Technology and telecommunications
- Master of Business Administration (M.B.A.), Universitas Gadjah Mada (UGM), 1997-1999
- Bachelor of Engineering (B.E.), Universitas Gadjah Mada (UGM), 1991-1997
- Indonesian Tax Consultants Association, 2000
- Indonesian Customs Expert Association, 2020
- Tax Consultant License, 2006
- Tax Court License, 2001
- Customs Expert License, 2005
