Tax lists are compiled by civil districts, so they can be used to track the movements of an individual both within a county and between counties. Cathy L’Altrelli has an article in Ansearchin News, Vol 66 No 1 2019, entitled “Asbells, Intermarried Families & Neighbors: Migration from Lawrence Co., TN in the 1830’s”, that is an excellent example of using tax lists to trace family migration. James L. Douthat has also published a series 1836 Tennessee Civil Districts and Tax Lists, by county, that includes the 1835 law establishing the civil districts, a description of the layout of the districts in the county (along with a map), and tax lists by districts for the years 1836 – 1839, where available.
Ancestry.com has a database containing many of the Tennessee tax lists: “Tennessee, Early Tax List Records, 1783-1895.” This database is also available to Tennessee residents through TEL