REVENUE MEMORANDUM CIRCULAR NO. 98-2025 issued on November 3, 2025 notifies the loss of one (1) set of used/filled-up but unissued BIR Form No. 1966 – Electronic Letter of Authority with Serial Number eLA202400108209.

Said form was reported as lost by Administrative Aide Benderliff G. Tubaña of Excise LT Audit Division I, Large Taxpayer Service. All official transactions involving the use thereof are considered as invalid.