Ministry of Planning, Finance and Industry

Internal Revenue Department

Announcement on introduction of Self-Assessment System in Medium Taxpayers’ Office (2)

1.       Internal Revenue Department, with a vision to become a modern organization that acts with integrity and is internationally recognized as a highly effective tax administration, has been implementing its tax reforms that are strategically in line with Myanmar Sustainable Development Plan (MSDP). As part of our tax reform program, transforming to Self Assessment System (SAS) from Official Assessment System (OAS) is regarded as one of the most important reform projects.

2.       As the first phase, Large Taxpayers’ Office was established in 2014-2015 fiscal year and transformed to SAS system with around 500 taxpayers as a pilot project. Building on the achievements of LTO pilot project, SAS system was then extended to Medium Taxpayers’ Office -1 (MTO-1) in 2017-2018 fiscal year while managing over 700 taxpayers. As of January 31, 2020, LTO and MTO-1 offices extend their SAS taxpayers to 946 and 1847 respectively. As the third phase comes, Internal Revenue Department would like to announce that the taxpayers currently managed by Medium Taxpayers’ Office – 2 (MTO-2) will be introduced and switched to Self Assessment System from Official Assessment System starting from October 1, 2020.

3.       Internal Revenue Department will duly communicate with the taxpayers to make sure that information on the benefits, obligations and requirements of Self Assessment System are delivered to the taxpayers in a timely manner.

4.       If you have any question relating to SAS expansion reform project, please feel free to contact Director, Tax Reform Directorate, Internal Revenue Department, Office No. (46), Nay Pyi Taw through the phone number 067 3430533.


(Min Htut)

Director General

Internal Revenue Department