1099-B form Money received was inheritance but used for estate expenses
My mother in law passed away in 2014. At the time, we paid for her funeral. We finally settled her estate in 2021 and received a 1099B from the stocks she had. The 1099B amounts were less than the funeral costs. Is this income taxable? If not, how can I report that when filing my taxes? If the income is taxable, is my cost basis $0, so therefore I am responsible for the total sale amount?