Mortgage Boot consists of liabilities assumed or given up by the taxpayer. The taxpayer pays mortgage boot when he assumes or places debt on the replacement property. The taxpayer receives mortgage boot when he is relieved of debt on the relinquished property. If the taxpayer does not acquire debt that is equal to or greater than the debt that was paid off, they are considered to be relieved of debt. The debt relief portion is taxable, unless offset when netted against other boot in the transaction.