How does a taxpayer request a refund of an overpaid Illinois income tax credit that hasn't been fully applied?

Plain-English summary

A taxpayer asked the Illinois Department of Revenue how to get a refund of an overpaid income tax credit. A credit had been posted to the account in June 2016, and by May 2017 a balance of the credit remained after it had been partially applied against other liabilities. The taxpayer's power of attorney asked for a ruling on "the proper treatment of requesting refunds" of that remaining credit.

The Department responded with a General Information Letter (GIL) rather than a Private Letter Ruling (PLR), which means it did not decide whether this taxpayer was entitled to a refund on these specific facts. Instead, it explained the general legal framework: under Section 909(a) of the Illinois Income Tax Act (IITA), the Department may credit an overpayment against other tax liabilities and must refund any remaining balance. Under Section 909(d), every refund claim must be filed in writing, in the form the Department prescribes, and must state the specific grounds for the claim. The Department pointed to 86 Ill. Admin. Code 100.9400(f), which spells out the form and manner required to file a refund claim, and noted those provisions are available on the Department's website.

Because this is a GIL, it is explicitly not a statement of Department policy and is not binding on the Department, even as to the taxpayer who requested it.

What this means for you

Taxpayers with an unapplied overpayment credit

If your account shows a credit balance that hasn't been fully absorbed by other liabilities, this letter confirms the Department can refund the leftover balance, but you have to make a proper claim. Simply having a credit on the books is not the same as having filed a refund claim — you must file in writing, in the form the Department prescribes, stating the specific grounds for the claim, per IITA Section 909(d) and 86 Ill. Admin. Code 100.9400(f).

Powers of attorney handling refund requests

The requester in this letter was acting under a power of attorney seeking a refund on the taxpayer's behalf. The letter is a reminder that a POA doesn't change the underlying filing requirements — the refund claim still has to follow the prescribed form and manner and state its specific grounds, regardless of who submits it.

Accountants and tax professionals

This GIL is useful mainly as a pointer, not a precedent. It doesn't work through the taxpayer's specific credit or say whether a refund is due; it simply directs the reader to IITA Section 909 and Regulation 100.9400(f) for the procedural rules. If you need a binding answer on a client's specific overpayment facts, a GIL won't provide it — only a PLR can bind the Department, and only for the taxpayer who receives it.

Common questions

Q: Did the Department decide whether this taxpayer's credit should be refunded?
A: No. This is a GIL, and the Department explicitly stated a GIL does not constitute a statement of Department policy that applies, interprets, or prescribes the tax laws, and it is not binding on the Department. The letter only points to the applicable statute and regulation.

Q: What does Illinois law say happens to an overpayment?
A: Under IITA Section 909(a), the Department may credit an overpayment (including any interest allowed) against other tax liabilities, and it must refund any remaining balance to the taxpayer (or credit it against estimated tax if the taxpayer elects that option).

Q: How do I actually file a refund claim in Illinois?
A: IITA Section 909(d) requires the claim to be filed with the Department in writing, in the form the Department prescribes by regulation, and to state the specific grounds on which it is founded. The specific form and manner requirements are set out in 86 Ill. Admin. Code 100.9400(f).

Q: What's the difference between a GIL and a PLR, and why does it matter here?
A: A PLR is issued in response to a specific taxpayer's facts and is binding on the Department as to that taxpayer, so long as the facts recited are correct and complete. A GIL, like this one, does not bind the Department at all. The taxpayer here asked for a "letter ruling," but because of how the request was framed, the Department responded with a GIL instead of a PLR.

Citations and references

• 35 ILCS 5/909(a) (Illinois Income Tax Act — crediting and refunding overpayments)
• 35 ILCS 5/909(d) (Illinois Income Tax Act — form and grounds for refund claims)
• 86 Ill. Admin. Code 100.9400(f) (form and manner of filing a claim for refund)
• 2 Ill. Adm. Code 100.1200(b) and (c) (distinction between PLRs and GILs, and their binding effect)

Source

• Landing page: https://taxarchive.illinois.gov/research/legal/letter-rulings/income-tax/2017.html
• Original PDF: https://tax.illinois.gov/content/dam/soi/en/web/taxarchive/research/legal/letter-rulings/income-tax/2017/it-17-0009-gil.pdf

Original ruling text

IT 17-0009-GIL 08/14/2017 (Refunds) (Other Rulings)
Regulation Section 100.9400(f) Prescribes Form and Manner of Refund Claim (This is a GIL.)

August 14, 2017

Re:

Request for Letter Ruling

Dear Sir:
This is in response to your letter received by this office July 5, 2017, in which you request a letter
ruling. Department of Revenue (“Department”) regulations require that the Department issue only two
types of letter rulings, Private Letter Rulings (“PLRs”) and General Information Letters (“GILs”). PLRs
are issued by the Department in response to specific taxpayer inquiries concerning the application of
a tax statute or rule to a particular fact situation. A PLR is binding against the Department, but only as
to the taxpayer issued the ruling and only to the extent the facts recited in the PLR are correct and
complete. GILs do not constitute statements of Department policy that apply, interpret or prescribe
the tax laws and are not binding against the Department. See 2 Ill. Adm. Code 100.1200(b) and (c).
Your letter requires that we respond with a GIL.
Your letter states as follows:
COMPANY requests a ruling on the proper treatment of requesting refunds from the state of
Illinois Department of Taxation.
A credit was issued to account:#### in June 2016. As of May 2017 there was a credit of
$$$$$. Power of Attorney is requesting a refund after the credit has been partially applied.

RULING
Section 909(a) of the Illinois Income Tax Act (“IITA” 35 ILCS 5/909(a)) states:
In the case of any overpayment, the Department, within the applicable period of limitations for a
claim for refund, may credit the amount of such overpayment, including any interest allowed
thereon, against any liability in respect of the tax imposed by this Act, regardless of whether
other collection remedies are closed to the Department on the part of the person who made the
overpayment and shall refund any balance to such person or credit any balance to that person
pursuant to an election under subsection (b) of this Section [regarding credits against estimated
tax].
IITA Section 909(d) states:
Every claim for refund shall be filed with the Department in writing in such form as the
Department may by regulations prescribe, and shall state the specific grounds upon which it is
founded.

IIT 17-0009-GIL
Page 2
Pursuant to this Section, the Department has promulgated Regulations Section 100.9400 (86 Ill.
Admin. Code 100.9400). Regulations Section 100.9400(f) sets forth the form and manner in which a
taxpayer must file a claim for refund. These provisions may be accessed from the Department of
Revenue website at www.ILtax.com.
As stated above, this is a GIL. A GIL does not constitute a statement of policy that applies, interprets
or prescribes the tax laws, and it is not binding on the Department.

Sincerely,

Brian Stocker
Associate Counsel (Income Tax)