Sec 43-1071. Credit for income taxes paid to other states; definitions

A. Subject to the following conditions, residents shall be allowed a credit against the taxes imposed by this chapter for net income taxes imposed by and paid to another state or country on income taxable under this chapter:

1. The credit shall be allowed only for taxes paid to the other state or country on income that is derived from sources within that state or country and that is taxable under its laws irrespective of the residence or domicile of the recipient.

2. The credit shall not be allowed if the other state or country allows residents of this state a credit against the taxes imposed by that state or country for taxes paid or payable under this chapter.

3. The credit shall not exceed the proportion of the tax payable under this chapter as the income subject to tax in the other state or country and also taxable under this title bears to the taxpayer's entire income on which the tax is imposed by this chapter.

B. If any taxes paid to another state or country for which a taxpayer has been allowed a credit under this section are at any time credited or refunded to the taxpayer:

1. The taxpayer shall immediately report that fact to the department.

2. A tax equal to the credit allowed for the taxes credited or refunded by the other state or country is due and payable from the taxpayer on notice and demand from the department.

3. Interest shall be added to and collected as a part of the tax at the rate determined pursuant to section 42-1123 from the date the credit was allowed under this chapter to the date of the notice and demand.

4. If the tax and interest are not paid within ten days from the date of notice and demand, there shall be collected as a part of the tax interest on the unpaid amount of tax and interest at the rate of twelve per cent a year from the date of the notice and demand until the amount is paid.

C. The credit against the taxes imposed by this chapter for net income taxes paid to another state or country shall not be allowed to any taxpayer or any class of taxpayers if the allowances of the credit will result in any invalid or illegal discrimination against another taxpayer or another class of taxpayers.

D. For taxable years beginning on or after January 1, 2002 and subject to the following conditions, a resident of this state, who is also considered to be a resident of another state under the laws of the other state, is allowed a credit against the taxes imposed by this title for net income taxes imposed by and paid to that state on income taxable under this title as follows:

1. The credit is allowed only if the other state taxes the income to the resident of this state and does not allow the taxpayer a credit against taxes imposed by that state on that income for taxes paid or payable on that income under this title.

2. The credit is allowed only for the proportion of the taxes paid to the other state as the income taxable under this title and also subject to tax in the other state bears to the entire income on which the taxes paid to the other state are imposed.

3. The credit may not exceed the proportion of the tax payable under this title as the income taxable under this title and also subject to tax in the other state bears to the entire income taxable under this title.

4. For the purpose of the credit allowed under this subsection, "income taxable under this title and also subject to tax in the other state" means income that would be sourced to the other state if the other state were imposing its income tax on the taxpayer as if the taxpayer was a nonresident of that other state.

E. For the purposes of this section, net income taxes imposed by another country include taxes that qualify for a credit under sections 901 and 903 of the internal revenue code and the regulations under those sections.

F. For the purposes of this section:

1. "Entire income on which the other state's or country's tax is imposed" means the other state's or country's income computed under the equivalent of section 43-1094 but does not include any exemption allowable under the equivalent of section 43-1023.

2. "Entire income on which the tax is imposed by this chapter" means Arizona adjusted gross income as defined and computed under section 43-1001 but does not include any exemption allowed under section 43-1023.

3. "Income subject to tax in the other state or country and also taxable under this title" means the portion of income that is included in entire income on which the tax is imposed by this chapter that is also included in the entire income on which the other state's or country's tax is imposed. The taxpayer shall increase or reduce the portion of income that is included in the entire income on which the tax is imposed by this chapter by any related additions under section 43-1021 and by any related subtractions under section 43-1022. The taxpayer shall increase or reduce the portion of income that is included in the entire income on which the other state's or country's tax is imposed by any related additions and subtractions under the other state's equivalent of sections 43-1021 and 43-1022, as applicable.

4. "Tax payable under this chapter" means the income tax imposed by this state on the taxpayer's taxable income as defined under section 43-1001 minus any tax credit amount claimed for the taxable year under this article but not including the credit amount allowed under this section.