The income tax laws of the United States Internal Revenue Code have been adopted as a local territorial income tax entitled "The Northern Marianas Territorial Income Tax" (NMTIT). The NMTIT mirrors the income tax laws of the U.S. Internal Revenue Code (IRC) in most respects, except where manifestly otherwise required, manifestly inapplicable, or incompatible with the intent of the Covenant or CNMI tax laws. Rebate amounts for non-corporate taxpayers
| NMTIT Liability | Rebate % |
| Not over $1,000 | 90% |
| $1,001 - $2,500 | 70% |
| Over $2,500 | 50% |
Rebate amounts for corporate taxpayers
| NMTIT Liability | Rebate % |
| Not over $20,000 | 90% |
| $20,001 - $100,000 | 70% |
| Over $100,000 | 50% |
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