A second home that you used for personal purposes (i.e., not as a rental property) is a personal asset. As such, loss on the sale of a second home is not tax deductible. However, if you received Form 1099-S, Proceeds from Real Estate Transactions, you should report the transaction on Form 8949 and Schedule D because IRS computers will be looking for your reporting. In column (f) of Form 8949, you should enter adjustment code L to indicate you have the nondeductible loss and enter the amount in column (g), so no gain or loss is shown on the transaction in column (h).
A revenue ruling is the Commissioner’s “official interpretation of the interpretation of the law” and generally is binding on revenue agents and other IRS officials. Taxpayers generally may rely on published revenue rulings in determining the tax treatment of their own transactions that arise out of similar facts and circumstances.