| | Tax Policy Center | Publications |
 | | On the other hand, some tax scholars maintain that the property of horizontal equity is not really an independent principle of tax fairness, but instead is subordinate to the concept of vertical equity, which holds that people with different incomes should pay different amounts of tax (Kaplow 1989). |
 | | As Musgrave (1990) notes, however, horizontal equity can lay claim to being an independent standard of tax equity because it is consistent with a number of different underlying conceptions of tax fairness, although application of the vertical equity standard will differ. |
 | | It might seem that horizontal equity is violated because both taxpayers have the same measured income, even though Taxpayer B will pay $2,100 on his or her interest income, while Taxpayer A owes no tax on his or her tax-exempt interest. |
| www.taxpolicycenter.org /publications/template.cfm?PubID=8524 (1396 words) |