German law requires that employees who spend more than half of their working time at another fixed location can not claim the relevant trip per diems or flat rates as travel expenses but must instead claim double budgeting.

Using Reporting trip duration you can find the employees who exceed a specific number of trip days within a certain time period (interval duration) and for whom the above statutory regulations apply, possibly making them eligible for double budgeting. The list produced by Reporting trip duration must, however, be edited manually, since it is not possible to carry out an exact selection of employees who are eligible for double budgeting according to German law.

In the same way, a trip that lasts longer than 90 days is to be claimed as double budgeting. The system recognizes such trips, issues an error message, and rejects data entry.