| 1978 | ||
| Taxable income of N Corporation: | ||
| U.S. sources | $100,000 | |
| Sources without the U.S.: | ||
| Amount required to be included in N Corporation's gross income under section 951(a) | $80,000 | |
| Foreign income taxes deemed paid by N Corporation under section 960(a)(1) and included in N Corporation's gross income under section 78 ($20,000×$80,000/$80,000) | 20,000 | 100,000 |
| Total taxable income | 200,000 | |
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Code of Federal Regulations
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| U.S. tax payable for 1978: | ||
| U.S. tax before credit ([$200,000× 0.22] [$175,000×0.26]) | 89,500 | |
| Credit: Foreign income taxes of $20,000, but not to exceed overall limitation of $44,750 ($89,500×$100,000/$200,000) | 20,000 | |
| U.S. tax payable | 69,500 | |
| 1979 | ||
| Taxable income of N Corporation, consisting of income from U.S. sources | $25,000 | |
| U.S. tax before credit ($25,000×0.22) | 5,500 | |
| Section 904(a)(2) overall limitation for 1979: | ||
| Limitation for 1979 before increase under section 960(b)(1) ($5,500×$0/$25,000) | 0 | |
| Plus: Increase in overall limitation for 1979 under section 960(b)(1): | ||
| Amount by which 1978 overall limitation was increased by reason of inclusion in N Corporation's gross income under section 951(a) for 1978 ($44,750 − [$41,500 × $0/$100,000]) | $44,750 | |
| Less: Foreign income taxes allowed as a credit for 1978 which were allowable solely by reason of such section 951(a) inclusion ($20,000−$0) | 20,000 | |
| Balance | 24,750 | |
| But: Such balance not to exceed foreign income taxes paid by N Corporation for 1979 with respect to $80,000 distribution excluded under section 959(a)(1) ($10,000 tax withheld) | 10,000 | 10,000 |
| Overall limitation for 1979 | 10,000 | |
| U.S. tax payable for 1979: | ||
| U.S. tax before credit ($25,000×0.22) | 5,500 | |
| Credit: Foreign income taxes of $10,000, but not to exceed overall limitation of $10,000 for 1979 | 10,000 | |
| U.S. tax payable | None | |
| Overpayment of tax for 1979: | ||
| Increase in limitation under section 960(b)(1) for 1979 | 10,000 | |
| Less: Tax imposed for 1979 under chapter 1 of the Code | 5,500 | |
| Excess treated as overpayment | 4,500 | |