From January 1 until February 1, and until the bill is filed to collect delinquent taxes, delinquent taxes may be received at the office of the county trustee who shall, at the same time, collect the penalties and interest.
Payment of tax after return of delinquent tax list
Tenn. Code Ann. § 67-5-2008, under Delinquent Taxes.
Tenn. Code Ann. § 67-5-2008