Reports - Age

The Case Data > Person > Age at Intake field will display an applicant/client's age based on their Date of Birth and Intake Date.

The Current Age field on the same table will display their age as of the run date of the report.

If you want yet another option, add the person's DOB field and format it to Age (in Years).

For other people on a case, the same is available on, for example, the Case Data > All Household Members subtable.