2025 Illinois state taxes

pfeif09 · ‎April 21, 2026

I accidentally paid my state taxes twice. How do I get a refund for the overpayment

AnnetteB6

Your best course of action is to give your payments and the tax return some time to process through the system and then contact the Illinois Department of Revenue to ask for the overpayment. It may be something that they will reconcile and send you the overpayment back as a refund automatically, but it will probably take some time.

If you do not automatically get a refund or cannot request one, then you can claim the second payment as an estimated payment on your 2026 tax return to get credit for the additional payment.

Use the following link for contact information for the Illinois Department of Revenue:

Contact Us

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View solution in original post

AnnetteB6

Your best course of action is to give your payments and the tax return some time to process through the system and then contact the Illinois Department of Revenue to ask for the overpayment. It may be something that they will reconcile and send you the overpayment back as a refund automatically, but it will probably take some time.

If you do not automatically get a refund or cannot request one, then you can claim the second payment as an estimated payment on your 2026 tax return to get credit for the additional payment.

Use the following link for contact information for the Illinois Department of Revenue:

Contact Us

**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"