ILCS » Chapter 35 · Act 105
Illinois Compiled Statutes

35 ILCS 105/19 (2026)

If it shall appear that an amount of tax or penalty or interest has been paid in error hereunder to the Department by a purchaser, as distinguished from the retailer, whether such amount be paid through a mistake of fact or an error of law, such purchaser may file a claim for credit or refund with the Department in accordance with Sections 6, 6a, 6b, 6c, and 6d of the Retailers' Occupation Tax Act

✓ current as of May 2026
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(35 ILCS 105/19) (from Ch. 120, par. 439.19)
    Sec. 19. If it shall appear that an amount of tax or penalty or interest has been paid in error hereunder to the Department by a purchaser, as distinguished from the retailer, whether such amount be paid through a mistake of fact or an error of law, such purchaser may file a claim for credit or refund with the Department in accordance with Sections 6, 6a, 6b, 6c, and 6d of the Retailers' Occupation Tax Act. If it shall appear that an amount of tax or penalty or interest has been paid in error to the Department hereunder by a retailer who is required or authorized to collect and remit the use tax, whether such amount be paid through a mistake of fact or an error of law, such retailer may file a claim for credit or refund with the Department in accordance with Sections 6, 6a, 6b, 6c, and 6d of the Retailers' Occupation Tax Act, provided that no credit or refund shall be allowed for any amount paid by any such retailer unless it shall appear that he bore the burden of such amount and did not shift the burden thereof to anyone else (as in the case of a duplicated tax payment which the retailer made to the Department and did not collect from anyone else), or unless it shall appear that he or she or his or her legal representative has unconditionally repaid such amount to his vendee (1) who bore the burden thereof and has not shifted such burden directly or indirectly in any manner whatsoever; (2) who, if he has shifted such burden, has repaid unconditionally such amount to his or her own vendee, and (3) who is not entitled to receive any reimbursement therefor from any other source than from his vendor, nor to be relieved of such burden in any other manner whatsoever. If it shall appear that an amount of tax has been paid in error hereunder by the purchaser to a retailer, who retained such tax as reimbursement for his or her tax liability on the same sale under the Retailers' Occupation Tax Act, and who remitted the amount involved to the Department under the Retailers' Occupation Tax Act, whether such amount be paid through a mistake of fact or an error of law, the procedure for recovering such tax shall be that prescribed in Sections 6, 6a, 6b and 6c of the Retailers' Occupation Tax Act.
    Any credit or refund that is allowed under this Section shall bear interest at the rate and in the manner specified in the Uniform Penalty and Interest Act.
    Any claim filed hereunder shall be filed upon a form prescribed and furnished by the Department. The claim shall be signed by the claimant (or by the claimant's legal representative if the claimant shall have died or become a person under legal disability), or by a duly authorized agent of the claimant or his or her legal representative.
    A claim for credit or refund shall be considered to have been filed with the Department on the date upon which it is received by the Department. Upon receipt of any claim for credit or refund filed under this Act, any officer or employee of the Department, authorized in writing by the Director of Revenue to acknowledge receipt of such claims on behalf of the Department, shall execute on behalf of the Department, and shall deliver or mail to the claimant or his duly authorized agent, a written receipt, acknowledging that the claim has been filed with the Department, describing the claim in sufficient detail to identify it and stating the date upon which the claim was received by the Department. Such written receipt shall be prima facie evidence that the Department received the claim described in such receipt and shall be prima facie evidence of the date when such claim was received by the Department. In the absence of such a written receipt, the records of the Department as to when the claim was received by the Department, or as to whether or not the claim was received at all by the Department, shall be deemed to be prima facie correct upon these questions in the event of any dispute between the claimant (or his or her legal representative) and the Department concerning these questions.
    In case the Department determines that the claimant is entitled to a refund, such refund shall be made only from the Aviation Fuel Sales Tax Refund Fund or from such appropriation as may be available for that purpose, as appropriate. If it appears unlikely that the amount available would permit everyone having a claim allowed during the period covered by such appropriation or from the Aviation Fuel Sales Tax Refund Fund, as appropriate, to elect to receive a cash refund, the Department, by rule or regulation, shall provide for the payment of refunds in hardship cases and shall define what types of cases qualify as hardship cases.
    If a retailer who has failed to pay use tax on gross receipts from retail sales is required by the Department to pay such tax, such retailer, without filing any formal claim with the Department, shall be allowed to take credit against such use tax liability to the extent, if any, to which such retailer has paid an amount equivalent to retailers' occupation tax or has paid use tax in error to his or her vendor or vendors of the same tangible personal property which such retailer bought for resale and did not first use before selling it, and no penalty or interest shall be charged to such retailer on the amount of such credit. However, when such credit is allowed to the retailer by the Department, the vendor is precluded from refunding any of that tax to the retailer and filing a claim for credit or refund with respect thereto with the Department. The provisions of this amendatory Act shall be applied retroactively, regardless of the date of the transaction.
(Source: P.A. 101-10, eff. 6-5-19.)

    
Notes of Decisions
Cited in 7 cases, 2000–2019 · leading case: Am. Airlines, Inc. v. Dep't of Revenue, 931 N.E.2d 666 (Ill. App. Ct. 2009).
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Am. Airlines, Inc. v. Dep't of Revenue, 931 N.E.2d 666 (Ill. App. Ct. 2009). · cites it 9× “” 35 ILCS 105/19 (West 2009). As shall be more fully discussed below, sections 6 and 6a of the ROTA, referenced above in section 19 of the UTA, specify the procedures that a taxpayer must comply with in filing a refund claim.”
Armour Pharm. Co. v. Dep't of Revenue, 748 N.E.2d 265 (Ill. App. Ct. 2001). “Section 19 of the Use Tax Act (35 ILCS 105/19 (West 1998)) provides that when a taxpayer pays an erroneous amount of use tax, “whether such amount be paid through a mistake of fact or an error of law, such [taxpayer] may file a claim for credit or refund with the Department in…”
W.L. Miller Co. v. Zehnder, 734 N.E.2d 502 (Ill. App. Ct. 2000). “19 (as amended see 35 ILCS 105/19 (West 1998)). Were we to hold that Miller’s letter stating its intent to protest and requesting a claim for credit form had the same legal effect as submitting a completed form to the Department, we would render the procedures in section 19 of…”
Armour Pharm. Co. v. Dep't of Revenue, 735 N.E.2d 692 (Ill. App. Ct. 2000). “Section 19 of the Use Tax Act (35 ILCS 105/19 (West 1998)) provides that when a taxpayer pays an erroneous amount of use tax, “whether such amount be paid through a mistake of fact or an error of law, such [taxpayer] may file a claim for credit or refund with the Department in…”
Am. Airlines, Inc. v. Dep't of Revenue (Ill. App. Ct. 2009). · cites it 8× “” Mondy informed Koss that her previous supervisor, 5 The Department contends, and American does not dispute, that this reference in the record refers to a waiver of the statute of limitations, which, as shall be more fully discussed below, is permitted under section 6 of the…”
Redbox Automated Retail, LLC v. Dep't of Revenue, 2019 IL App (5th) 180489-U (Ill. App. Ct. 2019). · cites it 4× “Accordingly, the filing of Redbox’s refund claims for its erroneous payment of Illinois use tax is governed by sections 19 through 22 of the UTA (35 ILCS 105/19, 20, 21, 22 (West 2016)) and sections 4, 6, 6a, 6b, and 6c of the ROTA (35 ILCS 120/4, 6, 6a, 6b, 6c (West 2016)).”
Armour Pharm. Co. v. Dep't of Revenue (Ill. App. Ct. 2001). “Section 19 of the Use Tax Act (35 ILCS 105/19 (West 1998)) provides that when a taxpayer pays an erroneous amount of use tax, "whether such amount be paid through a mistake of fact or an error of law , such [taxpayer] may file a claim for credit or refund with the Department in…”
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