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  • Reliability

    Our estimate of the high wealth income tax gap has been assessed by an independent expert panel. Based on advice from the panel, the reliability rating for this estimate is high (with a score of 21).

    The methodological validity of the approach is similarly assessed as high. The level of data and information held on the high wealth population is extensive and the population coverage informing the estimates is also high.

    The gap estimates remain sensitive to assumptions made, particularly relating to non-detection.

    Figure 3 shows the reliability rating for the high wealth income tax gap estimate.

    Figure 3: Reliability rating scale from very low to very high – high wealth income tax gap

    Figure 3: This image is a graphical representation of the reliability rating for the current high wealth income tax gap estimate. It graphically represents a rating of high, which is a score between 21 and 25. The maximum score is 30.

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      Last modified: 19 Oct 2020QC 61748