*The fixed fee is the minimum fee paid by all IATA members. It is assessed annually.
**The variable fee is calculated only for members that perform over 5 million International Revenue Tonne Kilometers (RTKMs) per annum and is paid in addition to the fixed fee. It is calculated based on the airlines traffic statistics (RTKMs) for the previous two years.
***Each member contributes to IATF for scholarships to members from countries with developing economies.