A credit is allowed for foreign income taxes paid or accrued. The financing is limited certain part of U.S. tax due to foreign source income. It isn't refundable, but any excess credit can be carried to other years to reduce tax. After 26 years when there is any balance left unpaid, then the debt is understood. However, this unpaid balance is known as taxable income as per the Internal Revenue Service. What's interesting is the fact that loan is forgiven after different times depending on sec...