The successful management of big tunnelling projects requires the complete documentation of technical and financial data as well as their ongoing evaluation. The current study reviews the possibilities for digital documentation of tunnel construction with the subsequent integration of this data with an invoicing software. It suggests an implementation model, a building information modeling (BIM) project element list and a digital on‐site data recording tool for a workflow in New Austrian Tunnelling Method (NATM) projects. This digital resource enables central data management that improves and speeds up automated invoicing processes.