North Carolina Administrative Code Title 17 — Revenue
17 NCAC 06B .4004 — Tax Credits
If part of the S corporation's income is earned within and taxed by another state, either to the individual or to the corporation, a resident shareholder is entitled to a tax credit on the individual or the estates and trusts income tax return for the share of the tax paid to the other state. A shareholder claiming the tax credit must attach a schedule to the income tax return reflecting the total amount of tax paid to the State by the S corporation, and explaining how the shareholder's pro rata share of the tax was determined. Nonresident shareholders are not allowed credit for tax paid to another state.
Source: official text