Tenn. Code Ann. § 49-5-909: Exemption of benefits from process - Nonassignability

All annuities granted and payable out of the teachers' retirement fund shall be and are exempt from seizure or levy upon attachment, execution, supplemental process and all other process, whether mesne or final. The annuities or any payment of the annuities shall not be subject to sale, assignment or transfer by any beneficiary, and such transfer shall be absolutely void.