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The National Audit Office is the supreme public audit institution, which supervises the lawfulness of the management and use of public funds and assets as well as the execution of the state budget. It is the only institution in the European Union that performs the functions of the three institutions at the same time: the Supreme Audit Institution (SAI), the Audit Authority (AA) for the European Union Investment and the Budget Policy Monitoring Authority (independent fiscal institution (IFI )).

The National Audit Office aims to be recognisable in the country and in the international community as an independent supreme audit institution, valued for its professionalism and beneficial for its contribution to the positive developments in the public sector.

In performing the functions of the supreme audit institution, the National Audit Office carry out public audit of two types: financial (regularity) audit and performance audit.

The purpose of public financial (regularity) audit is to assess whether the annual (consolidated) financial statements and reports on the budget execution of the audited entity do or do not contain material misstatements, and whether the funds and assets are managed, used, and disposed of lawfully and are used for the purposes set forth by laws. The purpose of performance audit is to assess whether the audited entity is guided by the principles of economy, efficiency, and effectiveness, and whether the state funds and assets are used efficiently and rationally. Each public performance audit is completed with conclusions and recommendations, in which the auditors indicate how the audited entity could improve its performance.

As of 14 November 2013, the Seimas resolution obliges the National Audit Office to carry out the audit of compliance of bodies of the European Union structural assistance management and control system for 2014-2020 with their designation criteria and to perform the functions of the Audit Authority of the Operational Programme for European Union Funds Structural Assistance for 2014-2020.

Upon the entry into force of the Constitutional Law of the Republic of Lithuania on the Implementation of the Fiscal Treaty and the accompanying laws amending this Law, the National Audit Office is mandated to perform the function of the Budget Policy Monitoring Authority (independent fiscal institution) as of 1 January 2015. In performing this function, the National Audit Office supervises adherence to the rules of fiscal discipline applicable to the members of the Economic and Monetary Union in Lithuania and fulfilment of the tasks set out in legal acts, submits its opinions to the Seimas of the Republic of Lithuania and publishes them.

The powers of the National Audit Office are established in the Constitution of the Republic of Lithuania and the Law of the Republic of Lithuania on National Audit Office as well as other legal acts.

The institution’s quality management system has been certified by external experts as complying with ISO9001 standards since 2015.

Mission and Values









Professionalism, responsibility, cooperation and innovation are the key values that the staff of the supreme audit institution follow in their activities. These values are the foundation of the institution, enabling the fundamental mission of the National Audit Office to help the state to manage public funds and assets wisely.

Professionalism: by applying best practices and committed to continuous development employees make objective decisions and produce quality results.

Responsibility: employees work honestly and take responsibility both for their own and their team results, and for the entire institution.

Cooperation: employees work together towards a common goal and foster relationships with stakeholders based on respect and trust.

Innovation: employees are inquisitive and daring in searching, discovering, testing and applying innovations in their daily activities.

The mission of the Supreme Audit Institution is to increase the efficiency of the public sector and its benefits to society.