422.33  Corporate tax imposed — credit.
  1.  A tax is imposed annually upon each corporation doing business in this state, or deriving income from sources within this state, in an amount computed by applying the following rates of taxation to the net income received by the corporation during the income year:
  a.  On the first twenty-five thousand dollars of taxable income, or any part thereof, the rate of six percent.
  b.  On taxable income between twenty-five thousand dollars and one hundred thousand dollars or any part thereof, the rate of eight percent.
  c.  On taxable income between one hundred thousand dollars and two hundred fifty thousand dollars or any part thereof, the rate of ten percent.
  d.  On taxable income of two hundred fifty thousand dollars or more, the rate of twelve percent.
  “Income from sources within this state” means income from real, tangible, or intangible property located or having a situs in this state.
  1A.  There is imposed upon each corporation exempt from the general business tax on corporations by section 422.34, subsection 2, a tax at the rates in subsection 1 upon the state’s apportioned share computed in accordance with subsections 2 and 3 of the unrelated business income computed in accordance with the Internal Revenue Code and with the adjustments set forth in section 422.35.
  2.  If the trade or business of the corporation is carried on entirely within the state, the tax shall be imposed on the entire net income, but if the trade or business is carried on partly within and partly without the state or if income is derived from sources partly within and partly without the state, or if income is derived from trade or business and sources, all of which are not entirely in the state, the tax shall be imposed only on the portion of the net income reasonably attributable to the trade or business or sources within the state, with the net income attributable to the state to be determined as follows:
  a.  Nonbusiness interest, dividends, rents and royalties, less related expenses, shall be allocated within and without the state in the following manner:
  (1)  Nonbusiness interest, dividends, and royalties from patents and copyrights shall be allocable to this state if the taxpayer’s commercial domicile is in this state.
  (2)  Nonbusiness rents and royalties received from real property located in this state are allocable to this state.
  (3)  Nonbusiness rents and royalties received from tangible personal property are allocable to this state to the extent that the property is utilized in this state; or in their entirety if the taxpayer’s commercial domicile is in this state and the taxpayer is not taxable in the state in which the property is utilized. The extent of utilization of tangible personal property in a state is determined by multiplying the rents and royalties by a fraction, the numerator of which is the number of days of physical location of the property in the state during the rental or royalty period in the taxable year and the denominator of which is the number of days of physical location of the property everywhere during all rental or royalty periods in the taxable year. If the physical location of the property during the rental or royalty period is unknown, or unascertainable by the taxpayer tangible personal property is utilized in the state in which the property was located at the time the rental or royalty payor obtained possession.
  (4)  Nonbusiness capital gains and losses from the sale or other disposition of assets shall be allocated as follows:
  Gains and losses from the sale or other disposition of real property located in this state are allocable to this state.
  Gains and losses from the sale or other disposition of tangible personal property are allocable to this state if the property had a situs in this state at the time of the sale or disposition or if the taxpayer’s commercial domicile is in this state and the taxpayer is not taxable in the state in which the property had a situs.
  Gains and losses from the sale or disposition of intangible personal property are allocable to this state if the taxpayer’s commercial domicile is in this state.
  b.  Net nonbusiness income of the above class having been separately allocated and deducted as above provided, the remaining net business income of the taxpayer shall be allocated and apportioned as follows:
  (1)  Business interest, dividends, rents, and royalties shall be reasonably apportioned within and without the state under rules adopted by the director.
  (2)  Capital gains and losses from the sale or other disposition of assets shall be apportioned to the state based upon the business activity ratio applicable to the year the gain or loss is determined if the corporation determines Iowa taxable income by a sales, gross receipts or other business activity ratio. If the corporation has only allocable income, capital gains and losses from the sale or other disposition of assets shall be allocated in accordance with paragraph “a”, subparagraph (4).
  (3)  Where income is derived from business other than the manufacture or sale of tangible personal property, the income shall be specifically allocated or equitably apportioned within and without the state under rules of the director.
  (4)  Where income is derived from the manufacture or sale of tangible personal property, the part attributable to business within the state shall be in that proportion which the gross sales made within the state bear to the total gross sales.
  (5)  Where income consists of more than one class of income as provided in subparagraphs (1) to (4) of this paragraph, it shall be reasonably apportioned by the business activity ratio provided in rules adopted by the director.
  (6)  The gross sales of the corporation within the state shall be taken to be the gross sales from goods delivered or shipped to a purchaser within the state regardless of the F.O.B. point or other conditions of the sale, excluding deliveries for transportation out of the state.
  For the purpose of this section, the word “sale” shall include exchange, and the word “manufacture” shall include the extraction and recovery of natural resources and all processes of fabricating and curing. The words “tangible personal property” shall be taken to mean corporeal personal property, such as machinery, tools, implements, goods, wares, and merchandise, and shall not be taken to mean money deposits in banks, shares of stock, bonds, notes, credits, or evidence of an interest in property and evidences of debt.
  3.  If any taxpayer believes that the method of allocation and apportionment hereinbefore prescribed, as administered by the director and applied to the taxpayer’s business, has operated or will so operate as to subject the taxpayer to taxation on a greater portion of the taxpayer’s net income than is reasonably attributable to business or sources within the state, the taxpayer shall be entitled to file with the director a statement of the taxpayer’s objections and of such alternative method of allocation and apportionment as the taxpayer believes to be proper under the circumstances with such detail and proof and within such time as the director may reasonably prescribe; and if the director shall conclude that the method of allocation and apportionment theretofore employed is in fact inapplicable and inequitable, the director shall redetermine the taxable income by such other method of allocation and apportionment as seems best calculated to assign to the state for taxation the portion of the income reasonably attributable to business and sources within the state, not exceeding, however, the amount which would be arrived at by application of the statutory rules for apportionment.
  4.  In addition to all taxes imposed under this division, there is imposed upon each corporation doing business within the state the greater of the tax determined in subsection 1, paragraphs “a” through “d” or the state alternative minimum tax equal to sixty percent of the maximum state corporate income tax rate, rounded to the nearest one-tenth of one percent, of the state alternative minimum taxable income of the taxpayer computed under this subsection.
  The state alternative minimum taxable income of a taxpayer is equal to the taxpayer’s state taxable income as computed with the adjustments in section 422.35 and with the following adjustments:
  a.  Add items of tax preference included in federal alternative minimum taxable income under section 57, except subsections (a)(1) and (a)(5), of the Internal Revenue Code, make the adjustments included in federal alternative minimum taxable income under section 56, except subsections (a)(4) and (d), of the Internal Revenue Code, and add losses as required by section 58 of the Internal Revenue Code. In making the adjustment under section 56(c)(1) of the Internal Revenue Code, interest and dividends from federal securities and interest and dividends from state and other political subdivisions and from regulated investment companies exempt from federal income tax under the Internal Revenue Code, net of amortization of any discount or premium, shall be subtracted.
  b.  Apply the allocation and apportionment provisions of subsection 2.
  c.  Subtract an exemption amount of forty thousand dollars. This exemption amount shall be reduced, but not below zero, by an amount equal to twenty-five percent of the amount by which the alternative minimum taxable income of the taxpayer, computed without regard to the exemption amount in this paragraph, exceeds one hundred fifty thousand dollars.
  d.  In the case of a net operating loss computed for a tax year beginning after December 31, 1986, which is carried back or carried forward to the current taxable year, the net operating loss shall be reduced by the amount of items of tax preference and adjustments arising in the tax year which is taken into account in computing the net operating loss in section 422.35, subsection 11. The deduction for a net operating loss for a tax year beginning after December 31, 1986, which is carried back or carried forward to the current taxable year shall not exceed ninety percent of the alternative minimum taxable income determined without regard for the net operating loss deduction.
  5.  a.  The taxes imposed under this division shall be reduced by a state tax credit for increasing research activities in this state equal to the sum of the following:
  (1)  Six and one-half percent of the excess of qualified research expenses during the tax year over the base amount for the tax year based upon the state’s apportioned share of the qualifying expenditures for increasing research activities.
  (2)  Six and one-half percent of the basic research payments determined under section 41(e)(1)(A) of the Internal Revenue Code during the tax year based upon the state’s apportioned share of the qualifying expenditures for increasing research activities.
  The state’s apportioned share of the qualifying expenditures for increasing research activities is a percent equal to the ratio of qualified research expenditures in this state to the total qualified research expenditures.
  b.  In lieu of the credit amount computed in paragraph “a”, subparagraph (1), a corporation may elect to compute the credit amount for qualified research expenses incurred in this state in a manner consistent with the alternative simplified credit described in section 41(c)(5) of the Internal Revenue Code. The taxpayer may make this election regardless of the method used for the taxpayer’s federal income tax. The election made under this paragraph is for the tax year and the taxpayer may use another or the same method for any subsequent year.
  c.  For purposes of the alternate credit computation method in paragraph “b”, the credit percentages applicable to qualified research expenses described in section 41(c)(5)(A) and clause (ii) of section 41(c)(5)(B) of the Internal Revenue Code are four and fifty-five hundredths percent and one and ninety-five hundredths percent, respectively.
  d.  (1)  For purposes of this subsection, “base amount”, “basic research payment”, and “qualified research expense” mean the same as defined for the federal credit for increasing research activities under section 41 of the Internal Revenue Code, except that for the alternative simplified credit such amounts are for research conducted within this state.
  (2)  For purposes of this subsection, “Internal Revenue Code” means the Internal Revenue Code in effect on January 1, 2011.
  e.  Any credit in excess of the tax liability for the taxable year shall be refunded with interest computed under section 422.25. In lieu of claiming a refund, a taxpayer may elect to have the overpayment shown on its final, completed return credited to the tax liability for the following taxable year.
  f.  A corporation which is a primary business or a supporting business in a quality jobs enterprise zone may claim the research activities credit authorized pursuant to section 15A.9, subsection 8, in lieu of the credit computed in paragraph “a” or “b”.
  g.  A corporation which is an eligible business may claim an additional research activities credit authorized pursuant to section 15.335.
  h.  The department shall by February 15 of each year issue an annual report to the general assembly containing the total amount of all claims made by employers under this subsection and the portion of the claims issued as refunds, for all claims processed during the previous calendar year. The report shall contain the name of each claimant for whom a tax credit in excess of five hundred thousand dollars was issued and the amount of the credit received.
  6.  The taxes imposed under this division shall be reduced by a new jobs tax credit. An industry which has entered into an agreement under chapter 260E and which has increased its base employment level by at least ten percent within the time set in the agreement or, in the case of an industry without a base employment level, adds new jobs within the time set in the agreement is entitled to this new jobs tax credit for the tax year selected by the industry. In determining if the industry has increased its base employment level by ten percent or added new jobs, only those new jobs directly resulting from the project covered by the agreement and those directly related to those new jobs shall be counted. The amount of this credit is equal to the product of six percent of the taxable wages upon which an employer is required to contribute to the state unemployment compensation fund, as defined in section 96.19, subsection 37, times the number of new jobs existing in the tax year that directly result from the project covered by the agreement or new jobs that directly result from those new jobs. The tax year chosen by the industry shall either begin or end during the period beginning with the date of the agreement and ending with the date by which the project is to be completed under the agreement. Any credit in excess of the tax liability for the tax year may be credited to the tax liability for the following ten tax years or until depleted in less than the ten years. For purposes of this section, “agreement”, “industry”, “new job” and “project” mean the same as defined in section 260E.2 and “base employment level” means the number of full-time jobs an industry employs at the plant site which is covered by an agreement under chapter 260E on the date of that agreement.
  7.  a.  There is allowed as a credit against the tax determined in subsection 1 for a tax year an amount equal to the minimum tax credit for that tax year.
  The minimum tax credit for a tax year is the excess, if any, of the net minimum tax imposed for all prior tax years beginning on or after January 1, 1987, over the amount allowable as a credit under this subsection for those prior tax years.
  b.  The allowable credit under paragraph “a” for a tax year shall not exceed the excess, if any, of the tax determined in subsection 1 over the state alternative minimum tax as determined in subsection 4.
  The net minimum tax for a tax year is the excess, if any, of the tax determined in subsection 4 for the tax year over the tax determined in subsection 1 for the tax year.
  8.  The taxes imposed under this division shall be reduced by a franchise tax credit. A taxpayer who is a shareholder in a financial institution, as defined in section 581 of the Internal Revenue Code, which has in effect for the tax year an election under subchapter S of the Internal Revenue Code shall compute the amount of the tax credit by recomputing the amount of tax under this division by reducing the taxable income of the taxpayer by the taxpayer’s pro rata share of the items of income and expense of the financial institution. This recomputed tax shall be subtracted from the tax computed under this division and the resulting amount, which shall not exceed the taxpayer’s pro rata share of franchise tax paid by the financial institution, is the amount of the franchise tax credit allowed.
  9.  a.  The taxes imposed under this division shall be reduced by an assistive device tax credit. A small business purchasing, renting, or modifying an assistive device or making workplace modifications for an individual with a disability who is employed or will be employed by the small business is eligible, subject to availability of credits, to receive this assistive device tax credit which is equal to fifty percent of the first five thousand dollars paid during the tax year for the purchase, rental, or modification of the assistive device or for making the workplace modifications. Any credit in excess of the tax liability shall be refunded with interest computed under section 422.25. In lieu of claiming a refund, a taxpayer may elect to have the overpayment shown on the taxpayer’s final, completed return credited to the tax liability for the following tax year. If the small business elects to take the assistive device tax credit, the small business shall not deduct for Iowa tax purposes any amount of the cost of an assistive device or workplace modifications which is deductible for federal income tax purposes.
  b.  To receive the assistive device tax credit, the eligible small business must submit an application to the economic development authority. If the taxpayer meets the criteria for eligibility, the economic development authority shall issue to the taxpayer a certification of entitlement for the assistive device tax credit. However, the combined amount of tax credits that may be approved for a fiscal year under this subsection shall not exceed five hundred thousand dollars. Tax credit certificates shall be issued on an earliest filed basis. The certification shall contain the taxpayer’s name, address, tax identification number, the amount of the credit, and tax year for which the certificate applies. The taxpayer must file the tax credit certificate with the taxpayer’s corporate income tax return in order to claim the tax credit. The economic development authority and department of revenue shall each adopt rules to jointly administer this subsection and shall provide by rule for the method to be used to determine for which fiscal year the tax credits are approved.
  c.  For purposes of this subsection:
  (1)  “Assistive device” means any item, piece of equipment, or product system which is used to increase, maintain, or improve the functional capabilities of an individual with a disability in the workplace or on the job. “Assistive device” does not mean any medical device, surgical device, or organ implanted or transplanted into or attached directly to an individual. “Assistive device” does not include any device for which a certificate of title is issued by the state department of transportation, but does include any item, piece of equipment, or product system otherwise meeting the definition of “assistive device” that is incorporated, attached, or included as a modification in or to such a device issued a certificate of title.
  (2)  “Disability” means the same as defined in section 15.102, except that it does not include alcoholism.
  (3)  “Small business” means a business that either had gross receipts for its preceding tax year of three million dollars or less or employed not more than fourteen full-time employees during its preceding tax year.
  (4)  “Workplace modifications” means physical alterations to the work environment.
  10.  a.  The taxes imposed under this division shall be reduced by a historic preservation and cultural and entertainment district tax credit equal to the amount as computed under chapter 404A for rehabilitating eligible property. Any credit in excess of the tax liability shall be refunded or credited to the following year, as provided in section 404A.4, subsection 3.
  b.  For purposes of this subsection, “eligible property” means the same as used in section 404A.1.
  11.  Reserved.
  11A.  The taxes imposed under this division shall be reduced by an ethanol promotion tax credit for each tax year that the taxpayer is eligible to claim the tax credit under this subsection.
  a.  The taxpayer shall claim the tax credit in the same manner as provided in section 422.11N. The taxpayer may claim the tax credit according to the same requirements, for the same amount, and calculated in the same manner, as provided for the ethanol promotion tax credit pursuant to section 422.11N.
  b.  Any ethanol promotion tax credit which is in excess of the taxpayer’s tax liability shall be refunded or may be shown on the taxpayer’s final, completed return credited to the tax liability for the following tax year in the same manner as provided in section 422.11N.
  c.  This subsection is repealed on January 1, 2021.
  11B.  The taxes imposed under this division shall be reduced by an E-85 gasoline promotion tax credit for each tax year that the taxpayer is eligible to claim the tax credit under this subsection.
  a.  The taxpayer shall claim the tax credit in the same manner as provided in section 422.11O. The taxpayer may claim the tax credit according to the same requirements, for the same amount, and calculated in the same manner, as provided for the E-85 gasoline promotion tax credit pursuant to section 422.11O.
  b.  Any E-85 gasoline promotion tax credit which is in excess of the taxpayer’s tax liability shall be refunded or may be shown on the taxpayer’s final, completed return credited to the tax liability for the following tax year in the same manner as provided in section 422.11O.
  c.  This subsection is repealed on January 1, 2018.
  11C.  The taxes imposed under this division shall be reduced by a biodiesel blended fuel tax credit for each tax year that the taxpayer is eligible to claim the tax credit under this subsection.
  a.  The taxpayer may claim the biodiesel blended fuel tax credit according to the same requirements, for the same amount, and calculated in the same manner, as provided for the biodiesel blended fuel tax credit pursuant to section 422.11P.
  b.  Any biodiesel blended fuel tax credit which is in excess of the taxpayer’s tax liability shall be refunded or may be shown on the taxpayer’s final, completed return credited to the tax liability for the following tax year in the same manner as provided in section 422.11P.
  c.  This subsection is repealed on January 1, 2018.
  11D.  The taxes imposed under this division shall be reduced by an E-15 plus gasoline promotion tax credit for each tax year that the taxpayer is eligible to claim the tax credit under this subsection.
  a.  The taxpayer shall claim the tax credit in the same manner as provided in section 422.11Y. The taxpayer may claim the tax credit according to the same requirements, for the same amount, and calculated in the same manner, as provided for the E-15 plus gasoline promotion tax credit pursuant to section 422.11Y.
  b.  Any E-15 plus gasoline promotion tax credit which is in excess of the taxpayer’s tax liability shall be refunded or may be shown on the taxpayer’s final, completed return credited to the tax liability for the following tax year in the same manner as provided in section 422.11Y.
  c.  This subsection is repealed on January 1, 2018.
  12.  a.  The taxes imposed under this division shall be reduced by an investment tax credit authorized pursuant to section 15E.43 for an investment in a qualifying business or a community-based seed capital fund.
  b.  The taxes imposed under this division shall be reduced by investment tax credits authorized pursuant to sections 15.333, 15A.9, subsection 4, and section 15E.193B, subsection 6.
  13.  The taxes imposed under this division shall be reduced by an innovation fund investment tax credit allowed under section 15E.52.
  14.  The taxes imposed under this division shall be reduced by an endow Iowa tax credit authorized pursuant to section 15E.305.
  15.  Reserved.
  16.  The taxes imposed under this division shall be reduced by tax credits for wind energy production allowed under chapter 476B and for renewable energy allowed under chapter 476C.
  17.  Reserved.
  18.  Reserved.
  19.  The taxes imposed under this division shall be reduced by a corporate tax credit authorized pursuant to section 15.331C for certain sales taxes paid by a third-party developer.
  20.  The taxes imposed under this division shall be reduced by a tax credit authorized pursuant to section 15E.66, if redeemed, for investments in the Iowa fund of funds.
  21.  The taxes imposed under this division shall be reduced by an agricultural assets transfer tax credit as allowed under section 175.37.
  22.  Reserved.
  23.  The taxes imposed under this division shall be reduced by a qualified expenditure tax credit authorized pursuant to section 15.393, subsection 2, paragraph “a”.
  24.  The taxes imposed under this division shall be reduced by an investment tax credit authorized pursuant to section 15.393, subsection 2, paragraph “b”.
  25.  a.  The taxes imposed under this division shall be reduced by a charitable conservation contribution tax credit equal to fifty percent of the fair market value of a qualified real property interest located in the state that is conveyed as an unconditional charitable donation in perpetuity by the taxpayer to a qualified organization exclusively for conservation purposes. The maximum amount of tax credit is one hundred thousand dollars. The amount of the contribution for which the tax credit is claimed shall not be deductible in determining taxable income for state tax purposes.
  b.  For purposes of this section, “conservation purpose”, “qualified organization”, and “qualified real property interest” mean the same as defined for the qualified conservation contribution under section 170(h) of the Internal Revenue Code, except that a conveyance of land for open space for the purpose of fulfilling density requirements to obtain subdivision or building permits shall not be considered a conveyance for a conservation purpose.
  c.  Any credit in excess of the tax liability is not refundable but the excess for the tax year may be credited to the tax liability for the following twenty tax years or until depleted, whichever is the earlier.
  26.  The taxes imposed under this division shall be reduced by a redevelopment tax credit allowed under chapter 15, subchapter II, part 9.
  27.  The taxes imposed under this division shall be reduced by a disaster recovery housing project tax credit allowed under section 16.211.
  28.  The taxes imposed under this division shall be reduced by a school tuition organization tax credit allowed under section 422.11S. The maximum amount of tax credits that may be approved under this subsection for a tax year equals twenty-five percent of the school tuition organization’s tax credits that may be approved pursuant to section 422.11S, subsection 7, for a tax year.
[C35, §6943-f29; C39, §6943.065; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §422.33; 81 Acts, ch 135, §1 – 3; 82 Acts, ch 1023, §12, 13, 30, 31, ch 1234, §1]
83 Acts, ch 179, §14, 15, 22, 25; 83 Acts, ch 207, §90, 93; 85 Acts, ch 32, §81; 85 Acts, ch 230, §7; 86 Acts, ch 1007, §28; 86 Acts, ch 1194, §1; 86 Acts, ch 1236, §8; 86 Acts, ch 1241, §22; 87 Acts, ch 22, §11; 87 Acts, 1st Ex, ch 1, §6, 7; 88 Acts, ch 1028, §33; 88 Acts, ch 1099, §1; 89 Acts, ch 251, §20 – 22; 89 Acts, ch 285, §5; 90 Acts, ch 1171, §5; 90 Acts, ch 1196, §2; 91 Acts, ch 215, §5; 92 Acts, ch 1200, §1, 4; 93 Acts, ch 113, §3; 94 Acts, ch 1165, §19; 94 Acts, ch 1166, §8, 11; 95 Acts, ch 83, §4, 35; 95 Acts, ch 152, §5, 7; 97 Acts, ch 135, §7, 9; 98 Acts, ch 1078, §7, 10; 99 Acts, ch 95, §8, 9, 12, 13; 99 Acts, ch 151, §10, 11, 89; 2000 Acts, ch 1146, §8, 9, 11; 2000 Acts, ch 1194, §12 – 14, 21; 2001 Acts, ch 123, §3, 6; 2001 Acts, ch 127, §8 – 10; 2002 Acts, ch 1006, §8, 13; 2002 Acts, ch 1069, §9, 10, 14; 2002 Acts, ch 1156, §3, 8; 2003 Acts, ch 139, §9, 11, 12; 2003 Acts, ch 145, §286; 2003 Acts, 1st Ex, ch 1, §113, 133; 2003 Acts, 1st Ex, ch 2, §85, 89
[2003 Acts, 1st Ex, ch 1, §113, 133 amendment adding new subsection 15 stricken pursuant to Rants v. Vilsack, 684 N.W.2d 193]
2004 Acts, ch 1073, §18; 2004 Acts, ch 1175, §405, 418; 2005 Acts, ch 24, §8, 10, 11; 2005 Acts, ch 146, §2, 3; 2005 Acts, ch 150, §14, 62, 69; 2005 Acts, ch 160, §2, 14; 2006 Acts, ch 1136, §2; 2006 Acts, ch 1140, §7, 10, 11; 2006 Acts, ch 1142, §42 – 49; 2006 Acts, ch 1158, §29 – 33; 2006 Acts, ch 1159, §26; 2006 Acts, ch 1161, §4, 7; 2006 Acts, ch 1175, §16, 17, 23; 2007 Acts, ch 12, §6 – 8; 2007 Acts, ch 162, §7, 13; 2007 Acts, ch 165, §5, 9; 2008 Acts, ch 1004, §2, 7; 2008 Acts, ch 1011, §7, 9; 2008 Acts, ch 1169, §33 – 35; 2008 Acts, ch 1173, §9; 2008 Acts, ch 1191, §63, 107, 137, 163, 168; 2009 Acts, ch 41, §125; 2009 Acts, ch 100, §34, 35; 2009 Acts, ch 177, §44; 2009 Acts, ch 179, §133, 153, 234; 2010 Acts, ch 1061, §84, 182; 2010 Acts, ch 1138, §12, 16, 22, 26; 2011 Acts, ch 34, §98; 2011 Acts, ch 41, §13, 14, 16; 2011 Acts, ch 113, §19, 22, 23, 29, 33, 34, 36, 39, 40; 2011 Acts, ch 118, §85, 89; 2011 Acts, ch 130, §42, 47
Internal Revenue Code definition is updated regularly; for applicable definition in a prior tax year, refer to Iowa Acts and Code for that year
For provisions relating to availability and calculation of an ethanol blended gasoline tax credit under former subsection 11 in calendar year 2008 for a retail dealer whose tax year ends prior to December 31, 2008, see 2006 Acts, ch 1142, §49 
For provisions relating to availability and calculation of an ethanol promotion tax credit under subsection 11A in calendar year 2020 for a retail dealer whose tax year ends prior to December 31, 2020, see 2006 Acts, ch 1142, §49; 2006 Acts, ch 1175, §17; 2011 Acts, ch 113, §11, 13, 14
Subsection 11B applies retroactively to tax years beginning on or after January 1, 2006; 2006 Acts, ch 1142, §48; for provisions relating to availability and calculation of an E-85 gasoline promotion tax credit in calendar year 2017 for a retail dealer whose tax year ends prior to December 31, 2017, see 2006 Acts, ch 1142, §49; 2011 Acts, ch 113, §20, 22, 23
Subsection 11C applies retroactively to tax years beginning on or after January 1, 2006; 2006 Acts, ch 1142, §48; for provisions relating to requirements for claiming a biodiesel blended fuel tax credit in calendar year 2006 for a retail dealer whose tax year ends before December 31, 2006, and for availability and calculation of the tax credit for calendar year 2011 for a retail dealer whose tax year ends prior to December 31, 2011, see 2006 Acts, ch 1142, §49; 2011 Acts, ch 113, §30, 33, 34; for provisions relating to requirements for claiming a biodiesel blended fuel tax credit in calendar year 2017, for a retail dealer whose tax year ends before December 31, 2017, see 2011 Acts, ch 113, §31, 33, 34
2008 amendment to subsection 11C takes effect January 1, 2009, and applies to tax years beginning on or after that date; 2008 Acts, ch 1169, §34, 35; 2008 Acts, ch 1191, §137 
Continuation of wage-benefits tax credits under former subsection 18 for qualified new jobs in existence on June 30, 2008; 2008 Acts, ch 1191, §168 
Subsection 25 applies retroactively to January 1, 2008, for tax years beginning on or after that date; 2008 Acts, ch 1191, §107 
Subsection 27 takes effect May 12, 2009, and applies to disaster recovery housing project costs incurred on or after that date and before July 1, 2010; 2009 Acts, ch 100, §35; 2010 Acts, ch 1061, §84, 182
Tax credit certificates issued for future tax years for investments made on or before July 1, 2010, under former subsection 13 are valid and may be claimed by a taxpayer after July 1, 2010, in the tax year stated on the certificate; 2010 Acts, ch 1138, §26
2010 amendment striking former subsection 17 applies retroactively to tax years beginning on or after January 1, 2010; 2010 Acts, ch 1138, §16
2011 amendments to subsection 5, paragraphs b, c, and d, take effect April 12, 2011, and apply retroactively to January 1, 2010, for tax years beginning on or after that date; 2011 Acts, ch 41, §14, 16
2011 amendment to subsection 11B takes effect January 1, 2012, and applies to tax years beginning on and after that date; 2011 Acts, ch 113, §22, 23
2011 amendment to subsection 11C takes effect January 1, 2012, and applies to tax years beginning on and after that date; 2011 Acts, ch 113, §33, 34
Subsection 11D takes effect July 1, 2011, and applies to tax years beginning on or after January 1, 2012, and to that part of a retail dealer’s tax year or tax years occurring during that portion of a calendar year beginning on and after July 1, 2011, and ending on December 31, 2011; for provisions relating to requirements for claiming an E-15 plus gasoline promotion tax credit in calendar year 2017 for a retail dealer whose tax year ends before December 31, 2017, and for calculation of the tax credit for a portion of a tax year occurring in calendar year 2011, see 2011 Acts, ch 113, §37, 39, 40
Subsection 13 applies retroactively to January 1, 2011, for tax years beginning and investments made on or after that date; 2011 Acts, ch 130, §47, 71
See Code editor’s note on simple harmonization
Code editor directive applied
Subsection 5, paragraphs b – d amended
Subsection 9, paragraph b amended
Subsection 11B, paragraph c amended
Subsection 11C, paragraph c stricken and former paragraph d amended and redesignated as c
NEW subsections 11D and 13