Amends the Illinois Income Tax Act. Makes a technical change in a Section concerning the short title. Senate Floor Amendment No. 1 Deletes reference to: 35 ILCS 5/101 from Ch. 120, par. 1-101 Adds reference to: 35 ILCS 10/5-5 35 ILCS 10/5-15 Replaces everything after the enacting clause. Amends the Economic Development for a Growing Economy Tax Credit Act. Provides that, for Agreements that are executed on or after the effective date of the amendatory Act, "startup taxpayer" means a corporation, partnership, or other entity incorporated or organized no more than 10 years (currently, 5 years) before the filing of an application for an Agreement. Provides that an election to take the credit against withholding payments shall allow the credit to be taken against those payments during the first calendar quarter (currently, year) beginning after the end of the taxable quarter (currently, year) in which the credit is awarded. House Committee Amendment No. 1 Adds reference to: 20 ILCS 655/5.5 from Ch. 67 1/2, par. 609.1 220 ILCS 5/9-222.1A Replaces everything after the enacting clause. Reinserts the provisions of the engrossed bill. Adds provisions amending the Illinois Enterprise Zone Act. Provides that certain businesses that intend to establish a new cultured cell material food production facility at a designated location in Illinois are considered High Impact Businesses. Amends the Public Utilities Act to make conforming changes. House Floor Amendment No. 2 Deletes reference to: 20 ILCS 655/5.5 from Ch. 67 1/2, par. 609.1 35 ILCS 10/5-5 35 ILCS 10/5-15 220 ILCS 5/9-222.1A Adds reference to: New Act 35 ILCS 5/203 from Ch. 120, par. 2-203 Replaces everything after the enacting clause. Creates the Master Development Plan Recognition Act. Provides that certain contributions made by the State or units of local government are considered made pursuant to a master development plan within the meaning of Section 118 of the Internal Revenue Code of 1986. Amends the Illinois Income Tax Act. Creates a deduction for capital contributions that are made pursuant to a master development plan and that are included in the taxpayer's federal taxable income for the taxable year under Section 118 of the Internal Revenue Code. Effective immediately.