Why does Tennessee assess a federally disregarded LLC for franchise and excise tax after it registers for sales tax?

The classification rule: disregarded only under a corporation

The Department's Franchise and Excise Tax Manual (June 2026) states the rule in one sentence: "Businesses disregarded for federal income tax purposes are not disregarded for franchise and excise tax purposes except for LLCs whose single member is a corporation," citing sections 67-4-2007(d) and 67-4-2106(c). The Department's help-center article F&E-3, Filing Requirements for Disregarded Entities, puts the filing consequence directly: a single-member LLC "is required to file a franchise, excise tax return when 1) it is not disregarded for federal income tax purposes or 2) when it is disregarded for federal income tax purposes but its single member is an entity other than an entity that is classified as a corporation." The companion article F&E-4 adds that an LLC "must file a franchise and excise tax return even if it chooses to be ignored as an entity" federally, unless an exemption under section 67-4-2008 applies.

The manual adds that "[t]reatment as a disregarded entity for franchise and excise tax is not an option or an election." Three features of the rule decide most cases.

What counts as a corporation. The manual treats as a corporation an entity formed as a corporation under state law, an entity whose federal classification is a corporation, and an entity that has elected corporate classification on federal Form 8832. Important Notice #13-16, Single Member LLCs: Tax Classification (November 2013), reads "corporation" to mean any entity classified as a corporation for federal income tax purposes, and Important Notice #14-12 (June 2014) applies the same reading to a single-member LLC owned by a real estate investment trust. The manual confirms that an S corporation owner qualifies, because an S corporation is a corporation for this purpose.

Only single-member LLCs. "This rule only applies to SMLLCs. Other pass-through entities, such as LPs and multi-owned LLCs, that may otherwise be disregarded for federal tax purposes and owned by a corporation, are not disregarded" (manual, Chapter 4). A limited partnership wholly owned by a corporation and an affiliate is a separate Tennessee taxpayer. Stacked single-member LLCs disregard upward if a corporation is the single member of the top tier, and a multi-member LLC that is disregarded federally is disregarded for Tennessee purposes only where a "top-down" analysis shows every member disregarding into one corporation.

The LLC's own election. A single-member LLC that elects to be classified as a corporation is not disregarded, "even if its single owner is a corporation." It files its own return.

Where the rule applies, the corporate owner files one return that includes the LLC's activity, and the owner is the taxpayer even if its only Tennessee connection is the LLC. The manual states that a corporation with no activity of its own in Tennessee must register with the Department and file franchise and excise tax returns if it is the single member of a single-member LLC doing business in the state. Where the rule does not apply, the manual advises that the LLC maintain separate-entity records or pro forma federal income tax returns showing its own activity, because the owner's federal return does not separate it out; an LLC owned by an individual reports on Schedule J2 of Form FAE170 from the owner's federal schedules.

How a sales tax registration turns into a franchise and excise assessment

The chain begins with the registration form. The manual states that "[r]egistration for sales tax, business tax, franchise and excise tax and more is accomplished on a single registration application," that the Department "requires a separate registration application for each business entity doing business in this state," and that a person subject to the franchise and excise taxes should register within 15 days of becoming subject (section 67-4-2003(c)). The Sales and Use Tax Manual (August 2026) requires a certificate of registration before a seller conducts business and a certificate "for each business location," a rule it draws from section 67-6-601(a).

For a corporate-owned LLC, the Department's article SUT-18, Sales Tax and Business Tax Filing for Single Member LLCs, says the LLC is disregarded for sales and use tax and business tax as well, and that an LLC making taxable sales from a Tennessee location "should register that location under the consolidated sales/use and business tax accounts of its corporate single member." The same article allows the other path: "If a SMLLC wishes to register for sales/use and business tax separate from its corporate single member, it may do so," with the corporate owner remaining responsible for the tax.

The separate path is where the cascade starts. A registration filed in the LLC's own name, under its own federal employer identification number, presents the Department with an LLC that has a Tennessee location. Under F&E-4, an LLC is a franchise and excise taxpayer by default. The owner's return, meanwhile, reports the LLC's activity under the owner's account, so no return ever arrives under the LLC's. The Department has not published how its registration system decides whether to attach a franchise and excise filing requirement to a newly registered LLC, and nothing reviewed for this article describes that step. The pattern follows from the rules it has published: an LLC registered in its own name, a default rule that LLCs file, and a manual procedure that triggers on a missing return.

That procedure is short. "If a taxpayer does not file a return: [a]n estimated assessment of tax will be posted to the taxpayer's TNTAP account; and [a] Notice of Proposed Assessment will be sent to the taxpayer" (manual, Chapter 5). The estimate "is based on the best information available to the Department, and the taxpayer bears the burden of showing by clear and cogent evidence that the assessment is incorrect," citing section 67-1-113(b). "If unresolved, the assessment will go to the Collection Services Division for collection." The Department's article F&E-15 shows the same mechanism from another angle: where a filer omits the final return box, "the department proceeds as though the taxpayer is still operational and expects additional filings," which can lead to estimated assessments. An open filing requirement produces an estimate for each period until it is closed or satisfied.

Is the assessment wrong, or only the account?

The first task on receiving the notice is classification, because the same notice can mean three different things.

A corporate owner whose return included the LLC. A corporation organized in another state forms a single-member LLC to run a Tennessee sales location, takes no Form 8832 election for the LLC, and files Form FAE170 in its own name reporting the LLC's activity. The LLC registered for sales tax separately. A Notice of Proposed Assessment then arrives addressed to the LLC for a franchise and excise period. Here the liability has been reported and paid; the assessment sits on an account that, under sections 67-4-2007(d) and 67-4-2106(c), should carry no filing requirement. The response is a showing, not a return, and it is the showing the Department's own auditors are told to make: the manual describes an audit that begins with the organizational chart, which the auditor analyzes "to identify disregarded entities that should be included in the franchise and excise tax return of the corporate owner." The file is that chart, the owner's federal classification, confirmation that the LLC made no corporate election, the owner's Tennessee account number, and the owner's filed return for each period on the notice, marked to show where the LLC's activity appears, since federal returns do not separate the parent's reported activity from that of its disregarded entities (manual, Chapter 4).

A noncorporate owner. If, on the same facts, the LLC's single member is instead a holding company organized as a two-member LLC taxed as a partnership, or an individual, or a trust, the LLC is its own franchise and excise taxpayer, and the owner's federal return does not discharge its Tennessee obligation. The assessment is right that a return was due, and the estimate is the Department's figure, not the LLC's. The answer is a filed return for each open period on actual figures, prepared from separate-entity records or a pro forma federal return, which displaces the estimate. The limitations rule makes this urgent: an assessment may be made at any time where no return has been filed (manual, citing section 67-1-1501(b)), so every unfiled year stays open.

Two exemptions under section 67-4-2008 can matter for a noncorporate owner, and both require action. The obligated member entity exemption is available to an LLC, LP or LLP only if all of its direct owners elect to be fully liable for its debts, obligations and liabilities and file that documentation with the Tennessee Secretary of State. The manual states that the documentation must be filed "on or before the first day of the taxable period for which the exemption applies," and that a later filing takes effect only for the following period: "The exemption may not be prorated." An obligated member entity owned directly and solely by individuals is fully exempt; one with an obligated member that itself provides limited liability to its owners, such as a corporation or an LLC, is only partially exempt and files both Form FAE183 and Form FAE170. The family-owned noncorporate entity exemption, which the manual says an individually owned single-member LLC can also claim, depends on family ownership and on at least two-thirds of the entity's activity being passive investment income or that income combined with farming. Neither exemption reaches back to cure past years in which its conditions were not met, and each is claimed on Form FAE183 for the initial and each later period.

A corporate owner that never filed. The third case looks like the first but is not. The LLC is disregarded, but the corporate owner never registered for franchise and excise tax or filed a Tennessee return, because it read disregarded status as meaning no Tennessee filing at all. The assessment is on the wrong account, but the liability is real and belongs to the owner. A response that establishes disregarded status without the owner's returns points the Department at an unfiled corporation whose years are open without limit. The companion problem of when a Tennessee site creates the filing obligation in the first place, including during a construction phase, is the subject of the library's article on construction-phase franchise and excise tax nexus.

Responding to the Notice of Proposed Assessment

The timeline is set by the notice date. The Department's article GEN-17, Notices of Proposed Assessment, states that a taxpayer that disagrees "may request an informal conference within 30 days following the date of the NOPA." Without a request, the proposed assessment becomes final on the 31st day after its date. With a request, it becomes final on the date of the conference decision or, if adjusted, through a written determination of the adjusted amount. The informal conference is conducted by the Department's Administrative Hearing office under section 67-1-1438(b) to (h), and the request must be in writing ("Request an Informal Conference," tn.gov).

The conference is not mandatory. The Department's article IC-1, Informal Conference Overview, states that "[a] taxpayer is not required to request an informal conference to challenge a proposed tax assessment." Its "Request an Informal Conference" page goes further for this fact pattern: "The proposed assessment can usually be resolved quickly without an informal conference if the taxpayer" has "[r]eceived an estimated assessment." The page does not say which office handles that resolution. The practical sequence is a direct response to the notice within the 30 days, with a written conference request filed in the same window as protection if the direct response has not closed the matter before day 31.

Once an assessment is final, the routes narrow. GEN-18, Notices of Assessment, citing section 67-1-1801, states that a taxpayer contesting a final assessment without paying it has 90 days to file suit in chancery court, and that an informal conference is not a prerequisite to suit. The alternative is to pay and claim a refund. Under section 67-1-1802 as the manual describes it, a refund claim must be filed within three years from December 31 of the year of payment, the Department has six months to decide it, and a suit for refund must be filed within one year from the date the claim was filed.

Paying an estimate on a disregarded LLC's account to make the notice stop is a tempting shortcut and a costly one over time. It posts a payment to an account that should not exist; it does not remove the filing requirement that generated the estimate, so the next year's estimate follows; and recovering the payment requires a refund claim inside the three-year window. Closing the account is not a simple fix either. The Department's article TNTAP-12, Closing a Tax Account in TNTAP, routes the closing of a franchise and excise account through a final return marked as a termination or withdrawal, a path built for a taxpayer that stopped doing business, not for an entity that was never a separate taxpayer. No published procedure for a disregarded LLC's account was found, so the request to remove the filing requirement is made to the Department in the response itself, with the owner's account information.

Where the assessment stands, as in the noncorporate-owner case, penalty is the remaining negotiable item. The Commissioner may waive a penalty for good and reasonable cause where the delinquency is not the result of gross negligence or willful disregard of the law; for a return more than 30 days late, the cause must show that the taxpayer did everything it could reasonably be expected to do as an ordinarily intelligent and reasonably prudent business person (Tenn. Code Ann. section 67-1-803(a)(1), (d)(2)). "Interest may not be waived under any circumstances." A petition for waiver is filed in writing, and the manual points to the "Petition for Penalty Waiver" function in TNTAP.

Practice notes

The cascade is easiest to prevent at registration. A corporate-owned single-member LLC that needs a Tennessee sales tax certificate can register its location under the corporate owner's consolidated sales and use and business tax accounts, as SUT-18 describes, and the owner registers for franchise and excise tax in its own name. Where the LLC registers separately, the owner's return is the place to report the LLC's activity, and a notice addressed to the LLC is answered rather than paid. Before any response, the classification question comes first: the identity and federal classification of the single member, any Form 8832 election by the LLC, and, for multi-tier structures, whether every tier disregards into one corporation. An LLC owned by an individual, a partnership or a trust is a franchise and excise taxpayer unless an exemption applies, the obligated member entity exemption only where the members' election was on file by the first day of the period, and its unfiled years remain open without limit. The 30-day window runs from the date on the notice, not from its receipt, and a written conference request filed inside it preserves the protest while a direct response is pending. G&G State Tax Group provides Tennessee franchise and excise tax entity classification analysis and representation on proposed assessments alongside its state and local tax practice.