The Bradford Factor is a simple formula that allows companies to apply a relative weighting to employee unplanned absences (sickness, Doctors appointments, emergency childcare, etc). The Bradford Factor supports the principle that repeat absences have a greater operational impact than long-term sick. (A weighting is the impact that an event will have on the overall running of the normal business. If you give something a larger weighting score, it has a bigger impact).

Based on the Bradford Formula Score, Admin can set predefined thresholds that will determine what is the desired course of action: ”No Concern”, “Some Concerns”, “Action Required” , thus establishing a “gravity score”.

More about Bradford Formula can be found here:

The Formula

S2 x D = B

S = number of occurrences of absence on a given period

D = total duration of absence on a given period

B= the Bradford score.


On November 2019, employee was sick from 11/04 - 11/06 and also on 11/21.

Therefore: S = 2, D = 4

So: B = 2^2*4 = 16

Getting Results

  1. The Bradford Factor is embedded in the system and tracks the occurrences and duration of Sick Policy days taken only.

  2. The calculation will be shown in the “Time Off Taken Report” under Reports >> Time Off Reports.

  3. Select the time frame you want to assess employees’ absenteeism from the date picker. Select a “Current Month”, “Last Month” or a specific date range.

  4. In the Report’s column picker, make sure that the “Bradford Factor” column is selected.

  5. This column will show the Bradford factor as per the calculation mentioned above.


Example: For November 2019 the employee below took a total of 6 days of Sick, spread over 3 events: 1 day (November 11th), 4 days (November 18 - 21) and one day on November 29th.


So according to the formula:

S = 3 occurrences

D = 6 total days

Therefore B = 3^2 * 6 = 54


  • bob does not define the threshold for an absenteeism score range. Each customer can define his own criteria using the report output.
  • The Bradford factor only applies to the out-of-the-box Sick policy type and not to any custom policy types.
  • The Bradford factor formula is typically applied to the UK market. Other countries may have different criteria when it comes to assessing sick leave trends.

For more information about the "Time Off Taken Report" and other time off reports, please refer to Time off reports article