The IRS is apparently jealous that some banks have profited from the subprime mortgage meltdown, and have gotten into the action- Tax liens are for sale. If a property owning taxpayer fails to pay his taxes the government will secure a lien on their property. This lien allows local municipalities to secure payment when the property changes ownership, or if the taxes remain delinquent for a specified amount of time, the IRS can foreclose on the property and evict the property owner. (See, NYC’s Annual Tax Lien Sale)