A notice of federal tax lien gets filed by the IRS when you neglect or fail to pay a tax debt. A federal tax lien is the governments legal claim against your property. The lien attaches to all of your property including real estate, bank accounts, financial assets, cars, boats, retirement accounts. Once the lien is filed you wont be able to sell or refinance your home without paying off the value of the lien. If a lien is filed against your business, the lien attaches to all business property including equipment and accounts receivable. If you want to avoid a tax lien you should not ignore notices or letters from the IRS and should attempt some type of settlement or payment arrangements. If you file for bankruptcy a notice of tax lien will usually continue after the bankruptcy.