My elderly parents listed me on their mortgage as a protection. They recently sold their home and I had no dealings with the money they received. Must I claim it?

[Critter-3]

Were you also on the deed ?    Did the closing company issue you a 1099-S at closing ?

[Hal_Al]

Simple answer: No.

Paying off a mortgage is not a tax reporting event.  Sale of  a person's primary home is usually  a tax free event (if the rules are followed).  Taxation "follows the money" ("I had no dealings with the money they received").

Only if your name and SS# were on the form 1099-S, issued at closing, do you have anything to report (claim). Even then, nothing is taxable to you.