Business Activity Tax Simplification Act of 2026

sale of, tangible personal property'' and inserting ``a sale or transaction, furnishing information, or covering events, or otherwise gathering information''. (b) Application of Prohibitions to Other Business Activity Taxes.-- Title I of the Act entitled ``An Act relating to the power of the States to impose net income taxes on income derived from interstate commerce, and authorizing studies by congressional committees of matters pertaining thereto'', approved September 14, 1959 (15 U.S.C. 381 et seq.), is amended by adding at the end the following: ``Sec. 105. For taxable periods beginning on or after January 1, 2019, the prohibitions of section 101 that apply with respect to net income taxes shall also apply with respect to each other business activity tax, as defined in section 5(a)(2) of the Business Activity Tax Simplification Act of 2019. A State or political subdivision thereof may not assess or collect any tax which by reason of this section the State or political subdivision may not impose. ``Sec. 106. For purposes of this title-- ``(1) the term `digital good' means any software or other good that is delivered or transferred electronically, including sounds, images, data, facts, or combinations thereof, maintained in digital format, where such software or other good is the true object of the transaction, rather than the activity or service performed to create such software or other good, that results in the delivery to the customer of a complete copy of such software or other good, with the right to use permanently or for a specified period, and includes as an incidental component charges for the delivery or transfer of such software or other good; and ``(2) the term `digital service' means any service that is provided electronically, including but not limited to audio services, data processing, cloud computing, the provision of remote access to or use of a digital good, and includes as an incidental component charges for the electronic provision of the digital service to the customer.''. SEC. 3. MINIMUM JURISDICTIONAL STANDARD FOR STATE AND LOCAL NET INCOME TAXES AND OTHER BUSINESS ACTIVITY TAXES. (a) In General.--No taxing authority of a State shall have power to impose, assess, or collect a net income tax or other business activity tax on any person relating to such person's activities in interstate commerce unless such person has a physical presence in the State during the taxable period with respect to which the tax is imposed. (b) Requirements for Physical Presence.-- (1) In general.--For purposes of subsection (a), a person has a physical presence in a State only if such person's business activities in the State include any of the following during such person's taxable year: (A) Being an individual physically in the State, or assigning one or more employees to be in the State. (B) Using the services of an agent (excluding an employee) to establish or maintain the market in the State if such agent does not perform business services in the State for any other person during such taxable year. (C) The leasing or owning of tangible personal property or of real property in the State. (2) De minimis physical presence.--For purposes of this section, the term ``physical presence'' shall not include-- (A) presence in a State for less than 15 days in a taxable year (or a greater number of days if provided by State law); or (B) presence in a State to conduct limited or transient business activity. (c) Taxable Periods Not Consisting of a Year.--If the taxable period for which the tax is imposed is not a year, then any requirements expressed in days for establishing physical presence under this Act shall be adjusted pro rata accordingly. (d) Minimum Jurisdictional Standard.--This section provides for minimum jurisdictional standards and shall not be construed to modify, affect, or supersede the authority of a State or any other provision of Federal law allowing persons to conduct greater activities without the imposition of tax jurisdiction. (e) Exceptions.-- (1) Domestic business entities and individuals domiciled in, or residents of, the state.--Subsection (a) does not apply with respect to-- (A) a person (other than an individual) that is incorporated or formed under the laws of the State (or domiciled in the State) in which the tax is imposed; or (B) an individual who is domiciled in, or a resident of, the State in which the tax is imposed. (2) Taxation of partners and similar persons.--This section shall not be construed to modify or affect any State business activity tax liability of an owner or beneficiary of an entity that is a partnership, an S corporation (as defined in section 1361 of the Internal Revenue Code of 1986), a limited liability company (classified as a partnership for Federal income tax purposes), a trust, an estate, or any other similar entity if the entity has a physical presence in the State in which the tax is imposed. (3) Preservation of authority.--This section shall not be construed-- (A) to modify, affect, or supersede the authority of a State to enact a law and bring an enforcement action under such law or existing law against a person or entity, including related person or entity, that is engaged in an illegal activity, a sham transaction, or an actual abuse in its business activities in order to ensure a proper reflection of its tax liabilities; or (B) to supersede the authority of a State to require combined reporting. SEC. 4. GROUP RETURNS. If, in computing the net income tax or other business activity tax liability of a person for a taxable year, the net income or other economic results of affiliated persons is taken into account, the portion of such combined or consolidated net income or other economic results that may be subject to tax by the State shall be computed using the methodology that is generally applicable to businesses conducting similar business activities and, if that generally applicable methodology employs an apportionment formula, the denominator or denominators of that formula shall include the aggregate factors of all persons whose net income or other economic results are included in such combined or consolidated net income or other economic results and the numerator or numerators shall include the factors attributable to the State of only those persons that are themselves subject to taxation by the State pursuant to the provisions of this Act and subject to all other legal constraints on State taxation of interstate or foreign commerce. SEC. 5. DEFINITIONS AND EFFECTIVE DATE. (a) Definitions.--For purposes of this Act: (1) Net income tax.--The term ``net income tax'' has the meaning given that term for the purposes of the Act entitled ``An Act relating to the power of the States to impose net income taxes on income derived from interstate commerce, and authorizing studies by congressional committees of matters pertaining thereto'', approved September 14, 1959 (15 U.S.C. 381 et seq.). (2) Other business activity tax.-- (A) In general.--The term ``other business activity tax'' means any tax in the nature of a net income tax or tax measured by the amount of, or economic results of, business or related activity conducted in the State. (B) Exclusion.--The term ``other business activity tax'' does not include a sales tax, a use tax, or a similar transaction tax, imposed on the sale or acquisition of goods or services, whether or not denominated a tax imposed on the privilege of doing business. (3) Person.--The term ``person'' has the meaning given such term by section 1 of title 1 of the United States Code. Each corporation that is a member of a group of affiliated corporations, whether unitary or not, is itself a separate ``person''. (4) State.--The term ``State'' means any of the several States, the District of Columbia, or any territory or possession of the United States, or any political subdivision of any of the foregoing. (5) Tangible personal property.--For purposes of section 3(b)(1)(C), the leasing or owning of tangible personal property does not include the leasing or licensing of computer software. (b) Effective Date.--This Act shall apply with respect to taxable periods beginning on or after January 1, 2026. <all>