The Illinois Department of Revenue (IDOR) continues to advance efforts in identifying fraud and identity theft. This includes developing new electronic options for identity verification which will improve security and response time. In some cases, manual review is necessary to ensure the security and confidentiality of taxpayer information. We continue to make every effort to issue tax refunds as quickly as possible. Visit Where’s my Refund? for the most current information. This is the same information Call Center personnel utilize.