11. Indian tribes probably will block a new tax on their business income , primarily from gambling. 12. Charitable organizations are subject to tax on business income . 13. In 1950, Congress amended the tax law to introduce the concept of unrelated business income . 14. It includes wages, interest, dividends, business income , rental income, and all other types of income. 15. Business deductions in excess of business income result in losses that may offset other income. 16. Payments are also required quarterly or at year end for business income or other undistributed income. 17. In fact, holding MLPs in tax-exempt accounts may generate Unrelated Business Income Tax ( UBIT ). 18. Another important business income for Dunn was hunting. 19. Gary Bauer : 16 percent flat tax on personal and business income and on capital gains. 20. Armey's flat tax would set a single 17 percent rate on both individual and business income .