Tenn. Code Ann. § 67-5-1607

In the event that in the year a reappraisal program is completed, the values established in such reappraisal program are turned over to the county after October 1 of such year, no penalty and interest shall be added until five (5) months following the tax roll completion date as evidenced by written notification from the assessor of property to the trustee, specifically stating the date the tax roll was delivered to the trustee.