The Illinois Department of Revenue requires a Financial Responsibility Bond (REG-4-A) to secure tax obligations for certain businesses that use, sell, distribute, or mix motor fuel in the state. The bond is needed to legally conduct business and it guarantees that the principal (taxpayer) who has applied for the tax responsibility (bond type) pays to the Illinois Department of Revenue (IDOR) all tax amounts becoming due under this law. The surety company may cancel this bond by filing a written notice with IDOR by registered or certified mail within 90 days.
