Department of Revenue

IL-425 Identity Verification Documents
Identity Verification DocumentsIDOR Identity Verification DocumentsIllinois Department of Revenue Identity Verification FormIllinois tax identity verification documentsproof of identity for Illinois taxes
CPP-1 Installment Payment Plan Request
Illinois installment agreement formIllinois tax payment plan requestInstallment Payment Plan RequestRequest for an Illinois Department of Revenue Payment PlanRequest to pay Illinois taxes in installments
Form IL-2848 Power of Attorney
IDOR Power of Attorney FormIllinois Department of Revenue Power of AttorneyIllinois Revenue Power of Attorney FormIllinois tax POA formIllinois Tax Power of Attorney