If you have more than one 1099-C for personal debt, add the numbers from each one together and enter the totals. (Click the screenshot below to enlarge it for reference.)
Note: Only add the two 1099-Cs together if they are both for the same kind of debt, i.e, personal debt. You cannot add a 1099-C for cancellation of debt on you main home to a 1099-C for cancellation of another type of debt.
How do I enter a 1099-C?
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