Budget transparency is defined as the full disclosure of all relevant fiscal information in a timely and systematic manner.
The "OECD Best Practices for Budget Transparency" are designed as a reference tool for governments to use in order to increase the degree of budget transparency in their respective countries.
The best practices are in three parts:
The best practices are based on different countries’ experiences in each area and are organised around specific reports for presentational reasons only. Different countries will have different reporting regimes and may have different areas of emphasis for transparency.
Since 2015, the Best Practices have been embodied and updated within the Recommendation on Budgetary Governance, which provides a comprehensive, integrated set of guidance on budget formulation, magagement and its links with other aspects of good public governance.