According to the Internal Regulations the basic annual membership fee for Member Organizations is based on the World Bank List of Economies (July 2014) and amounts to:
- 125 EURO for low-income economies,
- 250 EURO for lower middle-income economies,
- 375 EURO for upper middle-income economies and
- 500 EURO for high-income economies.
In addition, each Member Organization pays 125 EURO for every 10 researchers listed on the application form. Thus, the minimum fee for any Member Organization is 250 EURO.
The annual fee for Associate Members is 50 Euro for low-income and lower middle-income economies, and 100 Euro for upper middle-income and high-income economies.