Our Professional,

CITASCO is a tax consulting firm dedicated to provide innovative and best solutions for clients’ tax problems and business needs. We offer a broad range of tax services performed by our highly skilled and experienced professionals that strive to exceed all of our clients’ expectation.

Our Vision

To become a premier tax consulting firm in Indonesia.

Our Mission

To continuously provide excellent tax services to clients.

Our Leader

Ruston Tambunan, Ak, M.Si, M.Int.Tax, BKP
(Managing Partner / Founder)

Ruston_newSix years served as an auditor in the government institution of Financial and Development Supervisory Body (BPKP) including four years as a Head of Tax Audit Team at a Joint Tax Audit Team of BPKP and Directorate General of Tax (DJP). In the last seven years before starting his new career as a Tax Consultant after voluntary resigned from BPKP, he worked at PT. Truba Jurong Engineering, one of the leading construction companies in Indonesia and his last position at this company was  a Vice President of Finance, Accounting and Tax.

He is a Registered State Accountant graduated from State College of Accountancy (STAN). He also holds Master of Science in Tax Administration and Policy from University of Indonesia (UI) and Master of International Taxation from University of Sydney, Australia. In addition, he is a Registered Tax Consultant (Certificate C License/ Brevet C) and has a Tax Attorney License from Indonesian Tax Court.

He has been a part time lecturer at University of Indonesia (UI) and Prasetiya Mulya Business School (PMBS) for several years. He mostly teaches Tax Management and International Tax subjects. He writes many articles on taxation published at national newspapers and tax magazines.

Currently he is a board member of Foreign Affairs Department at Association of Indonesian Tax Consultants (IKPI), a Head of Education & Training at Indonesian International Tax Society (IITS), a member of International Fiscal Association (IFA), and a member of International Tax Planning Association (ITPA).

Tax Consultation



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Exchange Rates

Currency Exchange Rate *
EUR 15542.12
USD 14178
GBP 17461.74
AUD 9548.2
SGD 10260.99
* Rupiah

Effective Date :
09.10.2019 - 15.10.2019

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