The Luxembourg Administration of Direct Tax has published Circular L.I.R. n° 105/2 of 4 June 2021, which provides guidance on the deduction of costs for professional activities. Key points of the guidance regarding equipment costs include the following: Costs for professional equipment are fully deductible if used exclusively or almost exclusively (at least 90%) for the professional activity; If equipment is used for both professional and private purposes, a breakdown must be prepared to allocate a non-deductible portion of the cost attributed to private use; In any case, no deduction is allowed for equipment if there is only minor professional...