Below we provide the Tennessee child support office phone number and online website. The Child Support Enforcement agency in Tennessee can help you establish and enforce a child support order as well as help establish paternity, collect unpaid child support payments and locate non-custodial parents. If you are looking to collect child support payments then contact the child support office in TN below, where you can file a complaint. The age of emancipation in Tennessee is 18. The TN statute of limitation is 10 years. Please note this site is for informational purposes only, do not use for legal advice.