All income is taxable unless the law specifically excludes it, but as you might have guessed, there's more to it than that. With that in mind, let's take a closer look at taxable vs. nontaxable income.
Social Security benefits include monthly retirement, survivor, and disability benefits; they do not include Supplemental Security Income (SSI) payments, which are not taxable.
Generally, debt that is forgiven or canceled by a lender is considered taxable income by the IRS and must be included as income on your tax return. When that debt is forgiven, negotiated down (when you pay less than you owe), or canceled you will receive a Form 1099-C, Cancellation of Debt, from your financial institution or credit union. Form 1099-C shows the amount of canceled or forgiven debt that was reported to the IRS. Creditors who forgive $600 or more of debt are required to issue this form.