All indicators and variables are based on gross earnings, social security contributions, personal income tax, family allowances and other benefits. Data refer to an average worker in different illustrative cases, defined on the bases of marital status (single vs. married), number of workers (in case of couples), number of dependent children and level of gross earnings, expressed as percentage of the average earnings of an average worker. According to the model developed by OECD, the average worker (AW) is a full-time employee who receives the average earnings in industries and services - sections C to K of NACE.BG-2003 from 2000 to 2007, and since 2008 in sections B to N of NACE.BG-2008. Gross earnings cover remuneration in cash, paid during the reference year by the employer, before tax deductions and social security contributions payable by employees and retained by the employer. All regular and irregular bonuses are included. Severance payments and payments in kind are excluded. Net earnings are the annual net incomes for the corresponding family case, calculated from the gross earnings by deducting employees' social security contributions and personal income taxes, and adding family allowances (if applicable). The following situations are considered: - single person with no children and earnings level of 50%, 67%, 80%, 100%, 125% and 167% of the AW respectively; - single person with two children and earnings level of 67% of the AW; - married couple with two children and the following levels of earnings of the AW: husband 100%/wife 0%; husband 100%/wife 33%; husband 100%/wife 67%; husband 100%/wife 100%; - married couple with no children and earnings levels as percentage of the AW: husband 100%/wife 33%; husband 100%/wife 100%. The average tax rate is defined as the income tax on gross earnings plus the employee's social security contributions less family allowances, expressed as a percentage of gross wage earnings. The tax wedge on labour costs is defined as income tax on gross wage earnings plus employee's and employer's social security contributions, expressed as a percentage of the total labour costs. The total labour costs are defined as the total from the gross earnings plus employer?s social security contributions plus payroll taxes, paid by the employer (not applicable in Bulgaria). The unemployment trap measures the percentage of gross earnings which is taxed away by the combined effect of the levied taxes and social contributions and the withdrawal of unemployment, and other benefits, when an unemployed person returns to employment. The low wage trap (LWT) measures the percentage of gross earnings which is taxed away by the combined effect of the levied taxes and social contributions and the withdrawal of social benefits, when employee's gross earnings increase from 33% to 67% of the AW. LWT provides information on the financial consequences for an employed person when increasing his/her work efforts (either as an increased number of hours worked or due to changes in skills) and thus of his/her wages. The indicator is calculated for: - single person with no children; - one-earner married couple with two children. Methods of calculations of indicators are described in the document "Net earnings and tax rates - definitions and models": http://www.nsi.bg/sites/default/files/files/metadata/Labour_Methodology_2.3_EN.pdf |