The Basel AML Index methodology is reviewed each year to ensure that it continues to accurately capture ML/TF risks.
This may affect the comparability of the results over the years.
Comparability between countries is also hampered by a lack of full coverage of countries by FATF fourth-round evaluations.
Data from FATF Mutual Evaluation Reports (MERs) and Follow-up Reports, which assess the quality of countries’ AML/CFT
systems, makes up 35% of the total risk score in the Basel AML Index. The FATF methodology was revised in 2013 (fourth
round of evaluations) in order to assess not only technical compliance with the FATF Recommendations but the effectiveness
of AML/CFT systems according to 11 Immediate Outcomes
As per July 2021, 111 jurisdictions had been evaluated with the FATF's fourth-round methodology. Although coverage with
fourth-round evaluations is increasing, several countries still have MERs based on older methodologies.