Falling poses a serious health risk for older adults. To be able to take targeted action, a good prognostic falls assessment is important. However, there is no consensus on which tests are most appropriate in specific situations. Aside from reliability and validity, prognostic validity of tests should be examined. This study considered the prognostic validity of a common test that is easy and fast to perform: the Timed Up and Go test (TUG), in combination with a cognitive and a manual dual-task.