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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)).

In performing the tasks assigned to it the National Audit Office carry out public audit. Public audit is an independent and objective assessment carried out in the audited entities by the supreme audit institution.

The National Audit Office carry out three types of public audit:

  • Financial audit where the sets of data of annual (consolidated) financial statements and reports on the budget execution of the audited entity are assessed and an independent auditor‘s opinion is issued.
  • Performance audit where the activities of the audited entity are assessed in terms of economy, efficiency and effectiveness.
  • Compliance audit where compliance of the audited entity‘s activities with legal acts and/or other requirements is assessed, and an independent auditor‘s opinion may be issued.

In order to improve the performance of the audited entity(s) and increase the public benefit, proposals – recommendations are formulated on the basis of the results of the public audits to resolve the problems identified during the audit. Public audit is an important factor in promoting the efficiency, accountability and effectiveness of the public institutions and improving citizens‘ lives.

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

The mission of the National Audit Office is promote progress in the public sector and the necessary changes for society. It is supported by professionalism, ethical behaviour, cooperation and innovation which are the fundamental values that the staff of the supreme audit institution follow in their activities.”




Ethical behaviour





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

Ethical behavior: we are fair, objective and impartial, we base cooperation with stakeholders on respect and mutual trust.

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.