Chapter 35, REVENUE

(35 ILCS 200/10-705) Sec. 10-705. Keystone property. (a) For the purposes of this Section: "Base year" means the last tax year prior to the date of the application during which the property was occupied and assessed and taxes were collected. "Tax year" means the calendar year for…

(35 ILCS 200/10-720) Sec. 10-720. Definitions. For the purpose of this Division 20: "Allowance for physical depreciation" means (i) the actual age in years of the commercial solar energy system on the assessment date divided by 25 years, multiplied by (ii) its trended real proper…

(35 ILCS 200/10-725) Sec. 10-725. Improvement valuation of commercial solar energy systems in counties with fewer than 3,000,000 inhabitants. Beginning in assessment year 2018, the fair cash value of commercial solar energy system improvements in counties with fewer than 3,000,00…

(35 ILCS 200/10-735) Sec. 10-735. Commercial solar energy systems not subject to equalization. Commercial solar energy systems assessable under this Division are not subject to equalization factors applied by the Department or any board of review, assessor, or chief county assess…

(35 ILCS 200/10-740) Sec. 10-740. Survey for ground installed commercial solar energy systems; parcel identification numbers for property improved with a ground installed commercial solar energy system. Notwithstanding any other provision of law, the owner of the ground installed…

(35 ILCS 200/10-745) Sec. 10-745. Real estate taxes. Notwithstanding the provisions of Section 9-175 of this Code, the owner of the commercial solar energy system shall be liable for the real estate taxes for the land and real property improvements of a ground installed commercia…

(35 ILCS 200/10-75) Sec. 10-75. Approval of municipal ordinances. In addition to the powers and duties described elsewhere in this Code, the Director may approve county or municipal ordinances which qualify historic buildings for consideration under this Code. However, no ordinan…

(35 ILCS 200/10-750) Sec. 10-750. Property assessed as farmland. Notwithstanding any other provision of law, real property assessed as farmland in accordance with Section 10-110 in the assessment year prior to valuation under this Division shall return to being assessed as farmla…

(35 ILCS 200/10-755) Sec. 10-755. Abatements. Any taxing district, upon a majority vote of its governing authority, may, after the determination of the assessed valuation as set forth in this Code, order the clerk of the appropriate municipality or county to abate any portion of …

(35 ILCS 200/10-760) Sec. 10-760. Applicability. The provisions of this Division apply for assessment years 2018 through 2033. (Source: P.A. 100-781, eff. 8-10-18.)

(35 ILCS 200/10-80) Sec. 10-80. Rules and regulations. The Director may promulgate rules and regulations as may be necessary to administer this Code, including but not limited to provisions that: (1) Preclude the issuance of a certificate of rehabilitation for any owner-occupied …

(35 ILCS 17/10-80) Sec. 10-80. (Amendatory provisions; text omitted). (Source: P.A. 97-636, eff. 6-1-12; text omitted.)

(35 ILCS 200/10-800) Sec. 10-800. Southland reactivation property. (a) For the purposes of this Section: "Base year" means the last tax year prior to the date of the application for southland reactivation designation during which the property was occupied and assessed and had an …

(35 ILCS 200/10-85) Sec. 10-85. Election by taxing district to deny special tax treatment. Any taxing district may elect by a majority vote of its governing authority within the first 30 days of each calendar year, upon written notice to the county clerk and the assessment office…

(35 ILCS 200/10-90) Sec. 10-90. Property used for airport purposes. In counties with 200,000 or more inhabitants, in addition to valuation as otherwise permitted by law, upon the filing of an application under Section 10-95 by the person liable for the taxes on that property, whi…

(35 ILCS 143/10-90) Sec. 10-90. The Tobacco Products Tax Act is repealed. (Source: P.A. 89-21, eff. 6-6-95.)

(35 ILCS 157/10-905) Sec. 10-905. (Amendatory provision; text omitted). (Source: P.A. 93-24, eff. 6-20-03; text omitted.)

(35 ILCS 157/10-910) Sec. 10-910. (Amendatory provisions; text omitted). (Source: P.A. 93-24, eff. 6-20-03; text omitted.)

(35 ILCS 200/10-920) Sec. 10-920. Definitions. As used in this Division: "Allowance for physical depreciation" means the product of the quotient that is generated by dividing the actual age in years of the commercial energy storage system on the assessment date by 25 years multip…

(35 ILCS 200/10-925) Sec. 10-925. Improvement valuation of commercial energy systems. Beginning in assessment year 2026, the fair cash value of commercial energy storage system improvements shall be determined by subtracting the allowance for physical depreciation from the commer…

(35 ILCS 200/10-930) Sec. 10-930. Commercial energy storage systems; equalization. Commercial energy storage systems that are subject to assessment under this Division are not subject to equalization factors applied by the Department, any board of review, an assessor, or a chief …

(35 ILCS 200/10-935) Sec. 10-935. Survey for commercial energy storage systems; parcel identification numbers. Notwithstanding any other provision of law, the owner of the commercial energy storage system shall commission a metes and bounds survey description of the land upon whi…

(35 ILCS 200/10-940) Sec. 10-940. Real estate taxes. Notwithstanding the provisions of Section 9-175 of this Code, the owner of the commercial energy storage system shall be liable for the real estate taxes for the land and real property improvements of the commercial energy stor…

(35 ILCS 200/10-945) Sec. 10-945. Property assessed as farmland. Notwithstanding any other provision of law, real property assessed as farmland in accordance with Section 10-110 in the assessment year prior to valuation under this Division shall return to being assessed as farmla…

(35 ILCS 143/10-95) Sec. 10-95. (Amendatory provisions; text omitted). (Source: P.A. 89-21, eff. 6-6-95.)

(35 ILCS 200/10-95) Sec. 10-95. Application process. The person liable for taxes on land used for airport purposes must file a verified application requesting the additional valuation provided for in Section 10-90, with the chief county assessment officer of the county where the …

(35 ILCS 200/10-950) Sec. 10-950. Abatements. Any taxing district may, upon a majority vote of its governing authority and after the determination of the assessed valuation as set forth in this Code, order the clerk of the appropriate municipality or county to abate any portion o…

(35 ILCS 200/10-953) Sec. 10-953. Cook County exemption. This Division 22 does not apply to any property located within Cook County. (Source: P.A. 104-458, eff. 6-1-26.)

(35 ILCS 200/10-955) Sec. 10-955. Applicability. The provisions of this Division apply for assessment years 2026 through 2040. (Source: P.A. 104-458, eff. 6-1-26.)

(35 ILCS 5/1001) (from Ch. 120, par. 10-1001) Sec. 1001. Failure to File Tax Returns. (a) Failure to file tax return. In case of failure to file any tax return required under this Act on the date prescribed therefor, (determined with regard to any extensions of time for filing) t…

(35 ILCS 5/1002) (from Ch. 120, par. 10-1002) Sec. 1002. Failure to Pay Tax. (a) Negligence. If any part of a deficiency is due to negligence or intentional disregard of rules and regulations (but without intent to defraud) there shall be added to the tax as a penalty the amount …

(35 ILCS 5/1003) (from Ch. 120, par. 10-1003) Sec. 1003. Interest on Deficiencies. (a) In general. If any amount of tax imposed by this Act, including tax withheld by an employer, is not paid on or before the date prescribed for payment of such tax (determined without regard to a…

(35 ILCS 5/1004) (from Ch. 120, par. 10-1004) Sec. 1004. Failure to file withholding returns or annual transmittal forms for wage and tax statements. In addition to any other penalties imposed by this Act, a taxpayer failing to file a quarterly return or the annual transmittal fo…

(35 ILCS 5/1005) (from Ch. 120, par. 10-1005) Sec. 1005. Penalty for Underpayment of Tax. (a) In general. If any amount of tax required to be shown on a return prescribed by this Act is not paid on or before the date required for filing such return (determined without regard to a…

(35 ILCS 5/1006) (from Ch. 120, par. 10-1006) Sec. 1006. Frivolous Returns. In addition to any other penalty provided by this Act there is imposed a penalty of $500 upon any individual who files a purported return that does not contain information from which the substantial corre…

(35 ILCS 5/1007) Sec. 1007. Failure to register tax shelter or maintain list. (a) Penalty Imposed. Any person that fails to comply with the requirements of Section 1405.5 shall incur a penalty as provided in subsection (b). A person shall not be in compliance with the requirement…

(35 ILCS 5/1008) Sec. 1008. Promoting tax shelters. Except as herein provided, the provisions of Section 6700 of the Internal Revenue Code shall apply for purposes of this Act as if such Section applied to an Illinois deduction, credit, exclusion from income, allocation or apport…

(35 ILCS 200/11-10) Sec. 11-10. Definition of pollution control facilities. "Pollution control facilities" means any system, method, construction, device or appliance appurtenant thereto, or any portion of any building or equipment, that is designed, constructed, installed or ope…

(35 ILCS 200/11-100) Sec. 11-100. Proration of value; property outside of State. If any railroad company owns or uses operating property partly within and partly outside of this State, the Department shall determine the value of the entire operating property of the railroad but s…

(35 ILCS 200/11-105) Sec. 11-105. Description of railroad track. The right of way, including the superstructures of first, second, third and other main tracks and all side tracks and turnouts, and the stations and improvements of the railroad company on the right of way and all o…

(35 ILCS 200/11-110) Sec. 11-110. Certification of railroad assessments. The equalized assessed value of the operating property of every railroad company subject to assessment, when determined as prescribed in Section 11-80, shall be listed and taxed in the several taxing distric…

(35 ILCS 200/11-115) Sec. 11-115. Failure to file schedules. In case any railroad company neglects to return to the Department any statements or schedules required to be returned to the Department, within the time required, the Department shall proceed to assess the property of t…

(35 ILCS 200/11-120) Sec. 11-120. Platting by railroad company. When any railroad company makes or records a plat of any contiguous lots or parcels of land belonging to it, they may be described as designated on the plat. (Source: Laws 1939, p. 886; P.A. 88-455.)

(35 ILCS 200/11-125) Sec. 11-125. Department rules on railroad assessments. The Department may adopt rules and regulations as it considers necessary to carry out the provisions of Sections 11-70 through 11-120. The rules and regulations when adopted, if not inconsistent with this…

(35 ILCS 200/11-130) Sec. 11-130. Legislative findings. The General Assembly finds that it is the policy of this State to ensure and encourage the availability of safe potable water for our cities, villages, towns, and rural residents and that it has become increasingly difficult…

(35 ILCS 200/11-135) Sec. 11-135. Definitions. For purposes of this Division 4: "Department" means the Illinois Department of Revenue. "Not for profit corporation" means an Illinois corporation organized and existing under the General Not For Profit Corporation Act of 1986 in goo…

(35 ILCS 200/11-140) Sec. 11-140. Valuation policy. Qualifying water treatment facilities shall be valued for purposes of computing the assessed valuation on the basis of 33 1/3% of the fair cash value. (Source: P.A. 92-278, eff. 1-1-02.)

(35 ILCS 200/11-145) Sec. 11-145. Method of valuation for qualifying water treatment facilities. To determine 33 1/3% of the fair cash value of any qualifying water treatment facility in assessing the facility, the Department shall take into consideration the probable net value t…

(35 ILCS 200/11-15) Sec. 11-15. Method of valuation for pollution control facilities. To determine the fair cash value of any certified pollution control facility, the Department shall determine the probable net value that could be realized by its owner if the facility were remov…

(35 ILCS 200/11-150) Sec. 11-150. Exclusion of for-profit water treatment facilities. In no event shall the valuation set forth in this Division 4 be available to a water treatment facility that sells water "for profit". (Source: P.A. 92-278, eff. 1-1-02.)