what are tax attributes? 1.amounts of cancelled debt that would be deductible. 2. the basis of certain assets, tax credits, carryovers, or transactions that have value but must be reduced due to discharge of a taxpayers debt. 3. restructured mortgage payments that reduce the principal balance of a home loan for insolvent taxpayers. 4. student loan debt cancellation (that is exempt from income) for recent graduates of medical and dental school who agree to work in rural or blighted urban areas. ???