4) The Department cannot approve any claim for credit to the extent that the amount claimed is an amount which has been paid (voluntarily or involuntarily) in total or partial liquidation of an assessment which had become final before the claim for credit to recover the amount so paid is filed with the Department, or if paid in total or partial liquidation of a judgment, order or decree of court. Also, all claims for credit are subject to the statute of limitations, as follows: Provided that as to any claim for credit filed with the Department on and after each January 1 and July 1 no amount of tax or penalty or interest erroneously paid (either in total or partial liquidation of a tax or penalty or amount of interest under the Act) more than 3 years prior to such January 1 and July 1, respectively, shall be credited; . . . except that if both the Department and the taxpayer have agreed to an extension of time to issue a notice of tax liability as provided in Section 4 of the Act, such claim may be filed at any time prior to the expiration of the period agreed upon. (Section 6 of the Act)
Beginning June 25, 2021, for any period included in a claim for credit or refund for which the statute of limitations for issuing a notice of tax liability under this Act will expire less than 6 months after the date a taxpayer files the claim for credit or refund, the statute of limitations is automatically extended for 6 months from the date it would have otherwise expired. (Section 6 of the Act)
This means that the normal statute of limitations will vary from 3 to 31/2 years as shown in the following examples:
A) On June 29, 2022 a taxpayer files a claim with the Department. The credit may be allowed for amounts paid on or after January 1, 2019. The credit will not be allowed for amounts paid on or before December 31, 2018.B) A taxpayer files a claim with the Department on July 2, 2022. In this case, amounts paid on or before June 30, 2019 were paid more than three years prior to July 1, 2022 and are not subject to refund.C) A taxpayer files a claim on November 30, 2021 for the months of October through December 2018. The claim will be processed by the Department because the time period that is open under the statute of limitations extends back through July 1, 2018.D) A taxpayer files a claim on January 5, 2000 for the month of October 1996 that was paid on November 20, 1996. The claim will not be approved by the Department because it is barred by the statute of limitations. A claim filed on January 5, 2000 only has open periods back through January 1, 1997.E) During the course of an audit of the periods July 1, 2019 through June 30, 2022, the taxpayer and the Department agree in writing to extend the statute of limitations through December 31, 2023 for the purpose of issuing a notice of tax liability for the audit period. (See Section 4 of the Act.) This extension of the time for issuing a notice of tax liability also extends the period under which the taxpayer may file a claim. (See Section 6 of the Act.) Therefore a claim filed by the taxpayer on November 27, 2023 to recover a payment that was filed and paid on July 20, 2019 will be processed because the open time limit for filing claims extends back to July 1, 2019 pursuant to the agreement. This is true even if the payment was for the June 2019 monthly return (due date of July 20, 2019) and June 2019 is outside the statute of limitations period for issuing a notice of tax liability. However, since the claim was filed within 6 months of when the statute of limitations would expire, which in this case is through December 31, 2023, the statute of limitations for issuing a notice of tax liability is automatically extended 6 months through June 30, 2024. It is important to note that the 6-month automatic extension of time for issuing a notice of tax liability does not grant an extension of time for filing a claim.