Relating to taxation; prescribing an effective date; providing for revenue raising that requires approval by a three-fifths majority.

Imposes 0.7 percent commercial activity tax, applicable to all persons other than excluded persons, to be measured by gross receipts. Allows for exclusion amount of $1 million per year of gross receipts that is not subject to tax. Defines excluded persons exempt from tax. Enacts administrative provisions for commercial activity tax. Repeals corporate excise and income taxes. Includes provision for situsing of gross receipts to state. Defines terms. Requires person who engages in business in this state to register with Department of Revenue. Increases earned income tax credit against personal income taxes and doubles standard deduction for personal income taxpayers that claim standard deduction on federal return. Takes effect only if constitutional amendment proposed by House Joint Resolution 4 (2017) is approved by people at next regular general election. Takes effect on effective date of constitutional amendment proposed by House Joint Resolution 4 (2017).