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What is an IL-PIN? Do I need it to file or pay individual income taxes using MyTax Illinois?
The IL-PIN is the account number we assign after you have filed an Illinois individual income tax return.
The IL-PIN is required to activate a MyTax Illinois account or request a Letter ID or to use MyTax Illinois to file an IL-1040 return or make an income tax payment.
If you have been assigned an IL-PIN, you may access it by using our IL-PIN Inquiry in MyTax Illinois or calling us at 800 732-8866. Before you make an inquiry, have your Illinois Driver's License/State ID or prior-year adjusted gross income readily available.
First-time filers with Illinois are not issued an IL-PIN and may not file their IL-1040 return or pay using MyTax Illinois. You must choose another payment and filing method.
If you file a joint return and use tax preparation software to file your return, each taxpayer must have an IL-PIN or a valid Illinois Driver's License/ID Card on file with the Illinois Secretary of State.
Visit the MyTax Illinois Help Guide for more information.
Note: If you are looking for information about your Illinois property’s "parcel number" or "permanent index number" (PIN), see our Property Tax Number Information webpage.