United Nations Educational, Science and Cultural Organization (UNESCO) hereby invite qualified companies to submit sealed tenders as follows: Consulting services: Tax reimbursement and advance calculation: the contractor shall process US tax reimbursement for federal and state/local income taxes submitted by UNESCO staff members according to US fiscal law. Two calculations shall be provided: last and first income. Reply to queries from staff members and give general information on reimbursement issues. Please refer to attached Procurement Notice