Example. In June of 2003, the Internal Revenue Service (IRS) enters into an installment agreement with the taxpayer to provide for periodic payments of the taxpayer's timely assessed tax liabilities. At the time the installment agreement is entered into, the taxpayer and the IRS execute a written agreement to extend the period of limitations on collection. The extension agreement executed in connection with the installment agreement operates to extend the period of limitations on collection to the date agreed upon in the extension agreement, plus 89 days. Subsequently, and prior to the expiration of the extended period of limitations on collection, the taxpayer files a bankruptcy petition under chapter 7 of the Bankruptcy Code and receives a discharge from bankruptcy a few months later. Assuming the tax is not discharged in the bankruptcy, section 6503(h) of the Internal Revenue Code operates to suspend the running of the previously extended period of limitations on collection for the period of time the IRS is prohibited from collecting due to the bankruptcy proceeding, and for 6 months thereafter. The new expiration date for the IRS to collect the tax is the date agreed upon in the previously executed extension agreement, plus 89 days, plus the period during which the IRS is prohibited from collecting due to the bankruptcy proceeding, plus 6 months.
26 C.F.R. §301.6502-1