1. In the OECD classification the term “taxes” is confined to compulsory unrequited payments to general government. Taxes are unrequited in the sense that benefits provided by government to taxpayers are not normally in proportion to their payments.1
2. The term “tax” does not include fines, penalties and compulsory loans paid to government. Borderline cases between tax and non-tax revenues in relation to certain fees and charges are discussed in §11–14.
3. General government consists of the central administration, agencies whose operations are under its effective control, state and local governments and their administrations, certain social security schemes and autonomous governmental entities, excluding public enterprises. This definition of government follows that of the 2008 System of National Accounts (SNA).2 In that publication, the general government sector and its sub-sectors are defined in Chapter 4, paragraphs 4.117 to 4.165.
4. Extra-budgetary units are part of the general government system. These are general government entities with individual budgets that are not fully covered by the main or general budget. These entities operate under the authority or control of a central, state, or local government. Extra-budgetary entities may have their own revenue sources, which may be supplemented by grants (transfers) from the general budget or from other sources. Even though their budgets may be subject to approval by the legislature, similar to that of budgetary accounts, they have discretion over the volume and composition of their spending. Such entities may be established to carry out specific government functions, such as road construction, or the nonmarket production of health or education services. Budgetary arrangements vary widely across countries, and various terms are used to describe these entities, but they are often referred to as “extra-budgetary funds” or “decentralised agencies”.
5. Compulsory payments to supra-national bodies and their agencies are no longer included as taxes as from 1998, with some exceptions. However, custom duties collected by EU member states on behalf of the European Union are still identified as memorandum items and included in overall tax revenue amounts in the country tables of the country in which they are collected (See §99). In countries where the church forms part of general government church taxes are included, provided they meet the criteria set out in §1 above. As the data refer to receipts of general government, levies paid to non-government bodies, welfare agencies or social insurance schemes outside general government, trade unions or trade associations, even where such levies are compulsory, are excluded. Compulsory payments to general government earmarked for such bodies are, however, included, provided that the government is not simply acting in an agency capacity.3 Profits from fiscal monopolies are distinguished from those of other public enterprises and are treated as taxes because they reflect the exercise of the taxing power of the state by the use of monopoly powers (see §65–67), as are profits received by the government from the purchase and sale of foreign exchange at different rates (see §74).
6. Taxes paid by governments (e.g., social security contributions and payroll taxes paid by governments in their capacity as an employer, consumption taxes on their purchases or taxes on their property) are not excluded from the data provided. However, where it is possible to identify the amounts of revenue involved,4 they are shown in Chapter 4.2 of this Report.
7. The relationship between this classification and that of the System of National Accounts (SNA) is set out in A.9 A.11 below. Because of the differences between the two classifications, the data shown in national accounts are sometimes calculated or classified differently from the practice set out in this guide. These and other differences are mentioned where appropriate (e.g., in §30 below) but it is not possible to refer to all of them. There may also be some differences between this classification and that employed domestically by certain national administrations (e.g., see §12 below), so that OECD and national statistics data may not always be consistent: any such differences, however, are likely to be very slight in terms of amounts of revenues involved.