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This annual publication provides information on tax levels and tax structures in OECD countries. It was prepared under the auspices of the Working Party on Tax Policy Analysis and Tax Statistics of the Committee on Fiscal Affairs and is published under the responsibility of the Secretary-General of the OECD.
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The tax burden continued to rise in OECD countries in 2013, increasing by 0.4 percentage points to an average 34.1% of gross domestic product (GDP). This followed increases of similar size in 2012 and 2011, when the average tax burdens were 33.7% and 33.3%. The tax burden is measured by taking the total tax revenues received as a percentage of GDP. The increase is calculated by applying the unweighted average percentage change for 2013 in the 30 countries providing data for that year to the overall average tax to GDP ratio in 2012.
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The purpose of this annual publication is to provide internationally comparative data on tax levels and tax structures in member countries of the OECD. The taxes imposed in each country are presented in a standardised framework based upon the OECD classification of taxes and its Interpretative guide as contained in Annex A to this Report.
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This annual Report presents detailed internationally comparable data on tax revenues of OECD countries for all levels of government. The latest edition provides outturn (i.e. final) data on tax revenues in 1965-2012. In addition, provisional estimates of tax revenues in 2013 are included for almost all OECD countries.
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