The authenticity of the origin, the integrity of the content and the legibility of an invoice, whether on paper or in electronic form, shall be ensured from the point in time of issue until the end of the period for storage of the invoice.
Nii paber- kui elektroonilise arve päritolu õigsus, sisu terviklus ja arve loetavus tuleb tagada alates arve väljastamisest kuni arve säilitusaja lõpuni.