Article 2 - Tax Imposed


      (35 ILCS 5/Art. 2 heading)
ARTICLE 2. TAX IMPOSED

    (35 ILCS 5/201)(from Ch. 120, par. 2‑201)
    Sec. 201. Tax Imposed.
    (a) In general. A tax measured by net income is hereby imposed on every individual, corporation, trust and estate for each taxable year ending after July 31, 1969 on the privilege of earning or receiving income in or as a resident of this State. Such tax shall be in addition to all other occupation or privilege taxes imposed by this State or by any municipal corporation or political subdivision thereof.
    (b) Rates. The tax imposed by subsection (a) of this Section shall be determined as follows, except as adjusted by subsection (d‑1):
        (1) In the case of an individual, trust or estate,
    for taxable years ending prior to July 1, 1989, an amount equal to 2 1/2% of the taxpayer's net income for the taxable year.
        (2) In the case of an individual, trust or estate,
    for taxable years beginning prior to July 1, 1989 and ending after June 30, 1989, an amount equal to the sum of (i) 2 1/2% of the taxpayer's net income for the period prior to July 1, 1989, as calculated under Section 202.3, and (ii) 3% of the taxpayer's net income for the period after June 30, 1989, as calculated under Section 202.3.
        (3) In the case of an individual, trust or estate,
    for taxable years beginning after June 30, 1989, an amount equal to 3% of the taxpayer's net income for the taxable year.
        (4) (Blank).
        (5) (Blank).
        (6) In the case of a corporation, for taxable years
    ending prior to July 1, 1989, an amount equal to 4% of the taxpayer's net income for the taxable year.
        (7) In the case of a corporation, for taxable years
    beginning prior to July 1, 1989 and ending after June 30, 1989, an amount equal to the sum of (i) 4% of the taxpayer's net income for the period prior to July 1, 1989, as calculated under Section 202.3, and (ii) 4.8% of the taxpayer's net income for the period after June 30, 1989, as calculated under Section 202.3.
        (8) In the case of a corporation, for taxable years
    beginning after June 30, 1989, an amount equal to 4.8% of the taxpayer's net income for the taxable year.
    (c) Personal Property Tax Replacement Income Tax. Beginning on July 1, 1979 and thereafter, in addition to such income tax, there is also hereby imposed the Personal Property Tax Replacement Income Tax measured by net income on every corporation (including Subchapter S corporations), partnership and trust, for each taxable year ending after June 30, 1979. Such taxes are imposed on the privilege of earning or receiving income in or as a resident of this State. The Personal Property Tax Replacement Income Tax shall be in addition to the income tax imposed by subsections (a) and (b) of this Section and in addition to all other occupation or privilege taxes imposed by this State or by any municipal corporation or political subdivision thereof.
    (d) Additional Personal Property Tax Replacement Income Tax Rates. The personal property tax replacement income tax imposed by this subsection and subsection (c) of this Section in the case of a corporation, other than a Subchapter S corporation and except as adjusted by subsection (d‑1), shall be an additional amount equal to 2.85% of such taxpayer's net income for the taxable year, except that beginning on January 1, 1981, and thereafter, the rate of 2.85% specified in this subsection shall be reduced to 2.5%, and in the case of a partnership, trust or a Subchapter S corporation shall be an additional amount equal to 1.5% of such taxpayer's net income for the taxable year.
    (d‑1) Rate reduction for certain foreign insurers. In the case of a foreign insurer, as defined by Section 35A‑5 of the Illinois Insurance Code, whose state or country of domicile imposes on insurers domiciled in Illinois a retaliatory tax (excluding any insurer whose premiums from reinsurance assumed are 50% or more of its total insurance premiums as determined under paragraph (2) of subsection (b) of Section 304, except that for purposes of this determination premiums from reinsurance do not include premiums from inter‑affiliate reinsurance arrangements), beginning with taxable years ending on or after December 31, 1999, the sum of the rates of tax imposed by subsections (b) and (d) shall be reduced (but not increased) to the rate at which the total amount of tax imposed under this Act, net of all credits allowed under this Act, shall equal (i) the total amount of tax that would be imposed on the foreign insurer's net income allocable to Illinois for the taxable year by such foreign insurer's state or country of domicile if that net income were subject to all income taxes and taxes measured by net income imposed by such foreign insurer's state or country of domicile, net of all credits allowed or (ii) a rate of zero if no such tax is imposed on such income by the foreign insurer's state of domicile. For the purposes of this subsection (d‑1), an inter‑affiliate includes a mutual insurer under common management.
        (1) For the purposes of subsection (d‑1), in no event
    shall the sum of the rates of tax imposed by subsections (b) and (d) be reduced below the rate at which the sum of:
            (A) the total amount of tax imposed on such
        foreign insurer under this Act for a taxable year, net of all credits allowed under this Act, plus
            (B) the privilege tax imposed by Section 409 of
        the Illinois Insurance Code, the fire insurance company tax imposed by Section 12 of the Fire Investigation Act, and the fire department taxes imposed under Section 11‑10‑1 of the Illinois Municipal Code,
    equals 1.25% for taxable years ending prior to December
    31, 2003, or 1.75% for taxable years ending on or after December 31, 2003, of the net taxable premiums written for the taxable year, as described by subsection (1) of Section 409 of the Illinois Insurance Code. This paragraph will in no event increase the rates imposed under subsections (b) and (d).
        (2) Any reduction in the rates of tax imposed by this
    subsection shall be applied first against the rates imposed by subsection (b) and only after the tax imposed by subsection (a) net of all credits allowed under this Section other than the credit allowed under subsection (i) has been reduced to zero, against the rates imposed by subsection (d).
    This subsection (d‑1) is exempt from the provisions of Section 250.
    (e) Investment credit. A taxpayer shall be allowed a credit against the Personal Property Tax Replacement Income Tax for investment in qualified property.
        (1) A taxpayer shall be allowed a credit equal to .5%
    of the basis of qualified property placed in service during the taxable year, provided such property is placed in service on or after July 1, 1984. There shall be allowed an additional credit equal to .5% of the basis of qualified property placed in service during the taxable year, provided such property is placed in service on or after July 1, 1986, and the taxpayer's base employment within Illinois has increased by 1% or more over the preceding year as determined by the taxpayer's employment records filed with the Illinois Department of Employment Security. Taxpayers who are new to Illinois shall be deemed to have met the 1% growth in base employment for the first year in which they file employment records with the Illinois Department of Employment Security. The provisions added to this Section by Public Act 85‑1200 (and restored by Public Act 87‑895) shall be construed as declaratory of existing law and not as a new enactment. If, in any year, the increase in base employment within Illinois over the preceding year is less than 1%, the additional credit shall be limited to that percentage times a fraction, the numerator of which is .5% and the denominator of which is 1%, but shall not exceed .5%. The investment credit shall not be allowed to the extent that it would reduce a taxpayer's liability in any tax year below zero, nor may any credit for qualified property be allowed for any year other than the year in which the property was placed in service in Illinois. For tax years ending on or after December 31, 1987, and on or before December 31, 1988, the credit shall be allowed for the tax year in which the property is placed in service, or, if the amount of the credit exceeds the tax liability for that year, whether it exceeds the original liability or the liability as later amended, such excess may be carried forward and applied to the tax liability of the 5 taxable years following the excess credit years if the taxpayer (i) makes investments which cause the creation of a minimum of 2,000 full‑time equivalent jobs in Illinois, (ii) is located in an enterprise zone established pursuant to the Illinois Enterprise Zone Act and (iii) is certified by the Department of Commerce and Community Affairs (now Department of Commerce and Economic Opportunity) as complying with the requirements specified in clause (i) and (ii) by July 1, 1986. The Department of Commerce and Community Affairs (now Department of Commerce and Economic Opportunity) shall notify the Department of Revenue of all such certifications immediately. For tax years ending after December 31, 1988, the credit shall be allowed for the tax year in which the property is placed in service, or, if the amount of the credit exceeds the tax liability for that year, whether it exceeds the original liability or the liability as later amended, such excess may be carried forward and applied to the tax liability of the 5 taxable years following the excess credit years. The credit shall be applied to the earliest year for which there is a liability. If there is credit from more than one tax year that is available to offset a liability, earlier credit shall be applied first.
        (2) The term "qualified property" means property
    which:
            (A) is tangible, whether new or used, including
        buildings and structural components of buildings and signs that are real property, but not including land or improvements to real property that are not a structural component of a building such as landscaping, sewer lines, local access roads, fencing, parking lots, and other appurtenances;
            (B) is depreciable pursuant to Section 167 of the
        Internal Revenue Code, except that "3‑year property" as defined in Section 168(c)(2)(A) of that Code is not eligible for the credit provided by this subsection (e);
            (C) is acquired by purchase as defined in Section
        179(d) of the Internal Revenue Code;
            (D) is used in Illinois by a taxpayer who is
        primarily engaged in manufacturing, or in mining coal or fluorite, or in retailing, or was placed in service on or after July 1, 2006 in a River Edge Redevelopment Zone established pursuant to the River Edge Redevelopment Zone Act; and
            (E) has not previously been used in Illinois in
        such a manner and by such a person as would qualify for the credit provided by this subsection (e) or subsection (f).
        (3) For purposes of this subsection (e),
    "manufacturing" means the material staging and production of tangible personal property by procedures commonly regarded as manufacturing, processing, fabrication, or assembling which changes some existing material into new shapes, new qualities, or new combinations. For purposes of this subsection (e) the term "mining" shall have the same meaning as the term "mining" in Section 613(c) of the Internal Revenue Code. For purposes of this subsection (e), the term "retailing" means the sale of tangible personal property for use or consumption and not for resale, or services rendered in conjunction with the sale of tangible personal property for use or consumption and not for resale. For purposes of this subsection (e), "tangible personal property" has the same meaning as when that term is used in the Retailers' Occupation Tax Act, and, for taxable years ending after December 31, 2008, does not include the generation, transmission, or distribution of electricity.
        (4) The basis of qualified property shall be the
    basis used to compute the depreciation deduction for federal income tax purposes.
        (5) If the basis of the property for federal income
    tax depreciation purposes is increased after it has been placed in service in Illinois by the taxpayer, the amount of such increase shall be deemed property placed in service on the date of such increase in basis.
        (6) The term "placed in service" shall have the same
    meaning as under Section 46 of the Internal Revenue Code.
        (7) If during any taxable year, any property ceases
    to be qualified property in the hands of the taxpayer within 48 months after being placed in service, or the situs of any qualified property is moved outside Illinois within 48 months after being placed in service, the Personal Property Tax Replacement Income Tax for such taxable year shall be increased. Such increase shall be determined by (i) recomputing the investment credit which would have been allowed for the year in which credit for such property was originally allowed by eliminating such property from such computation and, (ii) subtracting such recomputed credit from the amount of credit previously allowed. For the purposes of this paragraph (7), a reduction of the basis of qualified property resulting from a redetermination of the purchase price shall be deemed a disposition of qualified property to the extent of such reduction.
        (8) Unless the investment credit is extended by law,
    the basis of qualified property shall not include costs incurred after December 31, 2013, except for costs incurred pursuant to a binding contract entered into on or before December 31, 2013.
        (9) Each taxable year ending before December 31,
    2000, a partnership may elect to pass through to its partners the credits to which the partnership is entitled under this subsection (e) for the taxable year. A partner may use the credit allocated to him or her under this paragraph only against the tax imposed in subsections (c) and (d) of this Section. If the partnership makes that election, those credits shall be allocated among the partners in the partnership in accordance with the rules set forth in Section 704(b) of the Internal Revenue Code, and the rules promulgated under that Section, and the allocated amount of the credits shall be allowed to the partners for that taxable year. The partnership shall make this election on its Personal Property Tax Replacement Income Tax return for that taxable year. The election to pass through the credits shall be irrevocable.
        For taxable years ending on or after December 31,
    2000, a partner that qualifies its partnership for a subtraction under subparagraph (I) of paragraph (2) of subsection (d) of Section 203 or a shareholder that qualifies a Subchapter S corporation for a subtraction under subparagraph (S) of paragraph (2) of subsection (b) of Section 203 shall be allowed a credit under this subsection (e) equal to its share of the credit earned under this subsection (e) during the taxable year by the partnership or Subchapter S corporation, determined in accordance with the determination of income and distributive share of income under Sections 702 and 704 and Subchapter S of the Internal Revenue Code. This paragraph is exempt from the provisions of Section 250.
    (f) Investment credit; Enterprise Zone; River Edge Redevelopment Zone.
        (1) A taxpayer shall be allowed a credit against the
    tax imposed by subsections (a) and (b) of this Section for investment in qualified property which is placed in service in an Enterprise Zone created pursuant to the Illinois Enterprise Zone Act or, for property placed in service on or after July 1, 2006, a River Edge Redevelopment Zone established pursuant to the River Edge Redevelopment Zone Act. For partners, shareholders of Subchapter S corporations, and owners of limited liability companies, if the liability company is treated as a partnership for purposes of federal and State income taxation, there shall be allowed a credit under this subsection (f) to be determined in accordance with the determination of income and distributive share of income under Sections 702 and 704 and Subchapter S of the Internal Revenue Code. The credit shall be .5% of the basis for such property. The credit shall be available only in the taxable year in which the property is placed in service in the Enterprise Zone or River Edge Redevelopment Zone and shall not be allowed to the extent that it would reduce a taxpayer's liability for the tax imposed by subsections (a) and (b) of this Section to below zero. For tax years ending on or after December 31, 1985, the credit shall be allowed for the tax year in which the property is placed in service, or, if the amount of the credit exceeds the tax liability for that year, whether it exceeds the original liability or the liability as later amended, such excess may be carried forward and applied to the tax liability of the 5 taxable years following the excess credit year. The credit shall be applied to the earliest year for which there is a liability. If there is credit from more than one tax year that is available to offset a liability, the credit accruing first in time shall be applied first.
        (2) The term qualified property means property which:
            (A) is tangible, whether new or used, including
        buildings and structural components of buildings;
            (B) is depreciable pursuant to Section 167 of the
        Internal Revenue Code, except that "3‑year property" as defined in Section 168(c)(2)(A) of that Code is not eligible for the credit provided by this subsection (f);
            (C) is acquired by purchase as defined in Section
        179(d) of the Internal Revenue Code;
            (D) is used in the Enterprise Zone or River Edge
        Redevelopment Zone by the taxpayer; and
            (E) has not been previously used in Illinois in
        such a manner and by such a person as would qualify for the credit provided by this subsection (f) or subsection (e).
        (3) The basis of qualified property shall be the
    basis used to compute the depreciation deduction for federal income tax purposes.
        (4) If the basis of the property for federal income
    tax depreciation purposes is increased after it has been placed in service in the Enterprise Zone or River Edge Redevelopment Zone by the taxpayer, the amount of such increase shall be deemed property placed in service on the date of such increase in basis.
        (5) The term "placed in service" shall have the same
    meaning as under Section 46 of the Internal Revenue Code.
        (6) If during any taxable year, any property ceases
    to be qualified property in the hands of the taxpayer within 48 months after being placed in service, or the situs of any qualified property is moved outside the Enterprise Zone or River Edge Redevelopment Zone within 48 months after being placed in service, the tax imposed under subsections (a) and (b) of this Section for such taxable year shall be increased. Such increase shall be determined by (i) recomputing the investment credit which would have been allowed for the year in which credit for such property was originally allowed by eliminating such property from such computation, and (ii) subtracting such recomputed credit from the amount of credit previously allowed. For the purposes of this paragraph (6), a reduction of the basis of qualified property resulting from a redetermination of the purchase price shall be deemed a disposition of qualified property to the extent of such reduction.
        (7) There shall be allowed an additional credit equal
    to 0.5% of the basis of qualified property placed in service during the taxable year in a River Edge Redevelopment Zone, provided such property is placed in service on or after July 1, 2006, and the taxpayer's base employment within Illinois has increased by 1% or more over the preceding year as determined by the taxpayer's employment records filed with the Illinois Department of Employment Security. Taxpayers who are new to Illinois shall be deemed to have met the 1% growth in base employment for the first year in which they file employment records with the Illinois Department of Employment Security. If, in any year, the increase in base employment within Illinois over the preceding year is less than 1%, the additional credit shall be limited to that percentage times a fraction, the numerator of which is 0.5% and the denominator of which is 1%, but shall not exceed 0.5%.
    (g) Jobs Tax Credit; Enterprise Zone, River Edge Redevelopment Zone, and Foreign Trade Zone or Sub‑Zone.
        (1) A taxpayer conducting a trade or business in an
    enterprise zone or a High Impact Business designated by the Department of Commerce and Economic Opportunity or for taxable years ending on or after December 31, 2006, in a River Edge Redevelopment Zone conducting a trade or business in a federally designated Foreign Trade Zone or Sub‑Zone shall be allowed a credit against the tax imposed by subsections (a) and (b) of this Section in the amount of $500 per eligible employee hired to work in the zone during the taxable year.
        (2) To qualify for the credit:
            (A) the taxpayer must hire 5 or more eligible
        employees to work in an enterprise zone, River Edge Redevelopment Zone, or federally designated Foreign Trade Zone or Sub‑Zone during the taxable year;
            (B) the taxpayer's total employment within the
        enterprise zone, River Edge Redevelopment Zone, or federally designated Foreign Trade Zone or Sub‑Zone must increase by 5 or more full‑time employees beyond the total employed in that zone at the end of the previous tax year for which a jobs tax credit under this Section was taken, or beyond the total employed by the taxpayer as of December 31, 1985, whichever is later; and
            (C) the eligible employees must be employed 180
        consecutive days in order to be deemed hired for purposes of this subsection.
        (3) An "eligible employee" means an employee who is:
            (A) Certified by the Department of Commerce and
        Economic Opportunity as "eligible for services" pursuant to regulations promulgated in accordance with Title II of the Job Training Partnership Act, Training Services for the Disadvantaged or Title III of the Job Training Partnership Act, Employment and Training Assistance for Dislocated Workers Program.
            (B) Hired after the enterprise zone, River Edge
        Redevelopment Zone, or federally designated Foreign Trade Zone or Sub‑Zone was designated or the trade or business was located in that zone, whichever is later.
            (C) Employed in the enterprise zone, River Edge
        Redevelopment Zone, or Foreign Trade Zone or Sub‑Zone. An employee is employed in an enterprise zone or federally designated Foreign Trade Zone or Sub‑Zone if his services are rendered there or it is the base of operations for the services performed.
            (D) A full‑time employee working 30 or more hours
        per week.
        (4) For tax years ending on or after December 31,
    1985 and prior to December 31, 1988, the credit shall be allowed for the tax year in which the eligible employees are hired. For tax years ending on or after December 31, 1988, the credit shall be allowed for the tax year immediately following the tax year in which the eligible employees are hired. If the amount of the credit exceeds the tax liability for that year, whether it exceeds the original liability or the liability as later amended, such excess may be carried forward and applied to the tax liability of the 5 taxable years following the excess credit year. The credit shall be applied to the earliest year for which there is a liability. If there is credit from more than one tax year that is available to offset a liability, earlier credit shall be applied first.
        (5) The Department of Revenue shall promulgate such
    rules and regulations as may be deemed necessary to carry out the purposes of this subsection (g).
        (6) The credit shall be available for eligible
    employees hired on or after January 1, 1986.
    (h) Investment credit; High Impact Business.
        (1) Subject to subsections (b) and (b‑5) of Section
    5.5 of the Illinois Enterprise Zone Act, a taxpayer shall be allowed a credit against the tax imposed by subsections (a) and (b) of this Section for investment in qualified property which is placed in service by a Department of Commerce and Economic Opportunity designated High Impact Business. The credit shall be .5% of the basis for such property. The credit shall not be available (i) until the minimum investments in qualified property set forth in subdivision (a)(3)(A) of Section 5.5 of the Illinois Enterprise Zone Act have been satisfied or (ii) until the time authorized in subsection (b‑5) of the Illinois Enterprise Zone Act for entities designated as High Impact Businesses under subdivisions (a)(3)(B), (a)(3)(C), and (a)(3)(D) of Section 5.5 of the Illinois Enterprise Zone Act, and shall not be allowed to the extent that it would reduce a taxpayer's liability for the tax imposed by subsections (a) and (b) of this Section to below zero. The credit applicable to such investments shall be taken in the taxable year in which such investments have been completed. The credit for additional investments beyond the minimum investment by a designated high impact business authorized under subdivision (a)(3)(A) of Section 5.5 of the Illinois Enterprise Zone Act shall be available only in the taxable year in which the property is placed in service and shall not be allowed to the extent that it would reduce a taxpayer's liability for the tax imposed by subsections (a) and (b) of this Section to below zero. For tax years ending on or after December 31, 1987, the credit shall be allowed for the tax year in which the property is placed in service, or, if the amount of the credit exceeds the tax liability for that year, whether it exceeds the original liability or the liability as later amended, such excess may be carried forward and applied to the tax liability of the 5 taxable years following the excess credit year. The credit shall be applied to the earliest year for which there is a liability. If there is credit from more than one tax year that is available to offset a liability, the credit accruing first in time shall be applied first.
        Changes made in this subdivision (h)(1) by Public Act
    88‑670 restore changes made by Public Act 85‑1182 and reflect existing law.
        (2) The term qualified property means property which:
            (A) is tangible, whether new or used, including
        buildings and structural components of buildings;
            (B) is depreciable pursuant to Section 167 of the
        Internal Revenue Code, except that "3‑year property" as defined in Section 168(c)(2)(A) of that Code is not eligible for the credit provided by this subsection (h);
            (C) is acquired by purchase as defined in Section
        179(d) of the Internal Revenue Code; and
            (D) is not eligible for the Enterprise Zone
        Investment Credit provided by subsection (f) of this Section.
        (3) The basis of qualified property shall be the
    basis used to compute the depreciation deduction for federal income tax purposes.
        (4) If the basis of the property for federal income
    tax depreciation purposes is increased after it has been placed in service in a federally designated Foreign Trade Zone or Sub‑Zone located in Illinois by the taxpayer, the amount of such increase shall be deemed property placed in service on the date of such increase in basis.
        (5) The term "placed in service" shall have the same
    meaning as under Section 46 of the Internal Revenue Code.
        (6) If during any taxable year ending on or before
    December 31, 1996, any property ceases to be qualified property in the hands of the taxpayer within 48 months after being placed in service, or the situs of any qualified property is moved outside Illinois within 48 months after being placed in service, the tax imposed under subsections (a) and (b) of this Section for such taxable year shall be increased. Such increase shall be determined by (i) recomputing the investment credit which would have been allowed for the year in which credit for such property was originally allowed by eliminating such property from such computation, and (ii) subtracting such recomputed credit from the amount of credit previously allowed. For the purposes of this paragraph (6), a reduction of the basis of qualified property resulting from a redetermination of the purchase price shall be deemed a disposition of qualified property to the extent of such reduction.
        (7) Beginning with tax years ending after December
    31, 1996, if a taxpayer qualifies for the credit under this subsection (h) and thereby is granted a tax abatement and the taxpayer relocates its entire facility in violation of the explicit terms and length of the contract under Section 18‑183 of the Property Tax Code, the tax imposed under subsections (a) and (b) of this Section shall be increased for the taxable year in which the taxpayer relocated its facility by an amount equal to the amount of credit received by the taxpayer under this subsection (h).
    (i) Credit for Personal Property Tax Replacement Income Tax. For tax years ending prior to December 31, 2003, a credit shall be allowed against the tax imposed by subsections (a) and (b) of this Section for the tax imposed by subsections (c) and (d) of this Section. This credit shall be computed by multiplying the tax imposed by subsections (c) and (d) of this Section by a fraction, the numerator of which is base income allocable to Illinois and the denominator of which is Illinois base income, and further multiplying the product by the tax rate imposed by subsections (a) and (b) of this Section.
    Any credit earned on or after December 31, 1986 under this subsection which is unused in the year the credit is computed because it exceeds the tax liability imposed by subsections (a) and (b) for that year (whether it exceeds the original liability or the liability as later amended) may be carried forward and applied to the tax liability imposed by subsections (a) and (b) of the 5 taxable years following the excess credit year, provided that no credit may be carried forward to any year ending on or after December 31, 2003. This credit shall be applied first to the earliest year for which there is a liability. If there is a credit under this subsection from more than one tax year that is available to offset a liability the earliest credit arising under this subsection shall be applied first.
    If, during any taxable year ending on or after December 31, 1986, the tax imposed by subsections (c) and (d) of this Section for which a taxpayer has claimed a credit under this subsection (i) is reduced, the amount of credit for such tax shall also be reduced. Such reduction shall be determined by recomputing the credit to take into account the reduced tax imposed by subsections (c) and (d). If any portion of the reduced amount of credit has been carried to a different taxable year, an amended return shall be filed for such taxable year to reduce the amount of credit claimed.
    (j) Training expense credit. Beginning with tax years ending on or after December 31, 1986 and prior to December 31, 2003, a taxpayer shall be allowed a credit against the tax imposed by subsections (a) and (b) under this Section for all amounts paid or accrued, on behalf of all persons employed by the taxpayer in Illinois or Illinois residents employed outside of Illinois by a taxpayer, for educational or vocational training in semi‑technical or technical fields or semi‑skilled or skilled fields, which were deducted from gross income in the computation of taxable income. The credit against the tax imposed by subsections (a) and (b) shall be 1.6% of such training expenses. For partners, shareholders of subchapter S corporations, and owners of limited liability companies, if the liability company is treated as a partnership for purposes of federal and State income taxation, there shall be allowed a credit under this subsection (j) to be determined in accordance with the determination of income and distributive share of income under Sections 702 and 704 and subchapter S of the Internal Revenue Code.
    Any credit allowed under this subsection which is unused in the year the credit is earned may be carried forward to each of the 5 taxable years following the year for which the credit is first computed until it is used. This credit shall be applied first to the earliest year for which there is a liability. If there is a credit under this subsection from more than one tax year that is available to offset a liability the earliest credit arising under this subsection shall be applied first. No carryforward credit may be claimed in any tax year ending on or after December 31, 2003.
    (k) Research and development credit.
    For tax years ending after July 1, 1990 and prior to December 31, 2003, and beginning again for tax years ending on or after December 31, 2004, and ending prior to January 1, 2011, a taxpayer shall be allowed a credit against the tax imposed by subsections (a) and (b) of this Section for increasing research activities in this State. The credit allowed against the tax imposed by subsections (a) and (b) shall be equal to 6 1/2% of the qualifying expenditures for increasing research activities in this State. For partners, shareholders of subchapter S corporations, and owners of limited liability companies, if the liability company is treated as a partnership for purposes of federal and State income taxation, there shall be allowed a credit under this subsection to be determined in accordance with the determination of income and distributive share of income under Sections 702 and 704 and sub