A vehicle trip logger is disclosed for recording vehicle location and at least one field as a trip category during travel. The trip logger provides data for a report of miles traveled in categories that may be useful for tax, vehicle maintenance or other reporting. For each trip the user selects a menu item displayed on the trip logger as a trip category. The trip logger may provide fields such as account numbers or trip reasons as additional category fields used in reporting vehicle travel. The trip logger may be configured by the user to customize displays and reports shown by the logger. Vehicle location records and trip records with trip fields are saved to internal memory. A trip record is indexed to a group of location records.