Does a cryptocurrency mining facility qualify for Tennessee's qualified data center exemption?

What qualification is worth

The exemption reaches the items that make up most of a mining facility's cost. Industrial machinery is exempt from Tennessee state and local sales and use tax (Tenn. Code Ann. section 67-6-206(a); Sales and Use Tax Manual (August 2026), Industrial Machinery Exemption), and "industrial machinery" includes "any 'computer', 'computer network', 'computer software', or 'computer system', as defined by § 39-14-601, and any peripheral devices ... when such items are used in the operation of a qualified data center," along with "repair parts, repair or installation services, and warranty or service contracts, purchased for such items" (section 67-6-102(50)(K)). The Department's manual notes that warranty and service contracts on industrial machinery used in a qualified data center are an exception to the general rule that a warranty on exempt equipment is taxable.

Public Chapter 1001 (2016) rewrote section 67-6-206(c) to add two more benefits, effective July 1, 2016. No tax applies to cooling equipment or backup power infrastructure sold to or used by a qualified data center. Backup power infrastructure means "backup power generation, battery systems, and related infrastructure," and cooling equipment means "cooling systems, cooling towers, and other temperature control infrastructure," in each case used primarily for and necessary to the operation of the qualified data center (Pub. Ch. 1001 (2016), section 2; Tennessee Department of Revenue, Sales and Use Tax Notice #16-06, Changes in Requirements for a Qualified Data Center (July 2016)). The same subsection taxes electricity sold to or used by a qualified data center at a reduced state rate of 1.5 percent (section 67-6-206(c); Sales and Use Tax Manual (August 2026), Rates and Impositions).

For a mining operation the electricity rate is often the largest benefit, because power is a recurring cost. Electricity is tangible personal property in Tennessee (section 67-6-102(102)(A)), and the general state rate is 7 percent (Sales and Use Tax Manual (August 2026), Rates and Impositions, citing sections 67-6-202 and 67-6-203). No local option tax applies to electric power or energy (Tenn. Code Ann. section 67-6-704; Sales and Use Tax Manual (August 2026), Local Tax Limitations), so the comparison for a business consumer is 7 percent against 1.5 percent of the power bill. The Department's manual directs the utility to report qualified data center electricity sales on the return at the reduced state rate, which means the supplier needs the purchaser's certificate before it can bill at 1.5 percent.

Is a mining facility a "data center"?

The statute asks three things of a data center: a building or buildings; construction, expansion or remodeling; and "high-tech computer systems and related equipment" housed inside. None of those words refers to storing data, processing transactions for customers, hosting websites or any other function. Chapter 6 defines neither "building" nor "high-tech," and the definition does not limit the computer systems to servers or require that they serve third parties. On its text, a building constructed or remodeled to house large numbers of specialized computers running a hashing algorithm meets the definition as well as a building housing storage arrays.

Some states write a function test into their data center exemptions, limiting exempt hardware to equipment used to provide data storage and data management services. Tennessee's definition has no comparable clause, so a mining operator has no such showing to make under section 67-6-102(25).

The words that do carry weight are "newly constructed, expanded, or remodeled." Equipment moved into an existing building without construction, expansion or remodeling does not fit the definition, though a building converted to a mining floor ordinarily needs new electrical service and cooling, which is remodeling.

The Department has not addressed mining in any published ruling located for this article. Its guidance on qualified data centers (Notice #16-06; the Sales and Use Tax Manual; Form RV-F1325001, Application for Qualified Data Center Sales and Use Tax Exemption) restates the statutory tests without discussing the type of computing performed. Its sales and use tax guidance on virtual currency, Revenue Help article SUT-122 (March 27, 2025), states that "[v]irtual currency (e.g., Bitcoin) is intangible property for the purpose of Tennessee taxation." That statement closes the manufacturer's route. The general industrial machinery exemption covers equipment "necessary to, and primarily for, the fabrication or processing of tangible personal property for resale and consumption off the premises" (section 67-6-102(50)(A)(i)). A mining operation produces coin that the Department treats as intangible, so on the text the qualified data center provision is the only industrial machinery category that reaches mining hardware. That conclusion is analysis drawn from the statute and SUT-122, not a Department holding.

Are mining machines "computers"?

Section 67-6-102(50)(K) does not use chapter 6's own definitions of computer and software. It borrows the definitions of "computer," "computer network," "computer software" and "computer system" in section 39-14-601, the definitions section of the criminal code's computer offenses part. Chapter 6 has its own definition, under which a "computer" is "an electronic device that accepts information in digital or similar form and manipulates it for a result based on a sequence of instructions" (section 67-6-102(20)). Hardware built to perform one hashing function repeatedly accepts data in digital form and manipulates it according to instructions, so it fits chapter 6's definition on its words. Whether it also fits the section 39-14-601 definitions that subdivision (50)(K) incorporates is a separate question, and the Department has not addressed single-purpose hardware.

The Department's published applications of the provision involve conventional equipment. Letter Ruling 11-06 (March 15, 2011) treated servers, mainframes, personal computers, networking equipment, computers used for power management and security, software, and related service agreements bought for a qualified data center as industrial machinery, assuming the statutory requirements were met. The ruling applied the earlier thresholds and binds the Department only as to the requesting taxpayer, but it reads the computer categories broadly.

Three further points narrow the question. First, peripheral devices count, and the statute's list ("printers, plotters, external disc drives, modems, and telephone units") is introduced by "including, but not limited to." Second, software counts: subdivision (50)(K) reaches "any" computer software used in the operation of a qualified data center. Third, the electrical gear that feeds the machines is not a computer or peripheral. Transformers, switchgear and distribution equipment can qualify only as backup power infrastructure or cooling equipment under section 67-6-206(c), and on the text primary power distribution is neither, so a mining site's main electrical build appears to fall outside the exemption.

The investment and jobs tests

The thresholds, not the definition, decide most mining cases. Section 67-6-102(86)(A) sets them in these terms:

• Investment. More than $100 million of "required capital investment," meaning "an increase of a business investment in real property, tangible personal property or computer software owned or leased in the state, valued in accordance with generally accepted accounting principles." The investment counts "as of the date of payment or the date the taxpayer enters into a legally binding commitment or contract for purchase or construction."
• Period. An investment period "not to exceed three (3) years," which the commissioner of economic and community development may extend "for a reasonable period, not to exceed four (4) years, for good cause shown." Good cause means a determination by that commissioner "that the capital investment is a result of the exemption for industrial machinery used by a qualified data center."
• Jobs. At least 15 net new "full-time employee jobs" created during the investment period, each "a permanent, rather than seasonal or part-time employment position for at least twelve (12) consecutive months to a person for at least thirty-seven and one-half (37½) hours per week with minimum health care, as described in title 56, chapter 7, part 22."
• Wages. Each of the 15 jobs must pay at least 150 percent of the state's average occupational wage as defined in section 67-4-2004. The Department describes that wage as the average for all industries reported by the Department of Labor and Workforce Development in its most recent census of employment and wages data for the state (Franchise and Excise Tax Manual (June 2026), Job Tax Credit, citing section 67-4-2004(3)).

The 2016 act lowered these thresholds. Before July 1, 2016, a qualified data center needed more than $250 million of investment and at least 25 jobs (Notice #16-06). Older rulings and commentary that quote the higher figures describe superseded law.

Investment is the easier test for a mining facility. Hardware, electrical work and the building itself all count, leased property counts, and a binding purchase contract fixes the date of the investment. One question the statute does not answer is whether hardware bought and then retired within the investment period counts at its full cost, since the measure is an "increase" valued under generally accepted accounting principles.

The jobs test is where most mining plans fall short. A mining floor needs electricians, technicians and security staff, but often in small numbers, and the wage test applies to each of the 15 positions. A hypothetical operator remodels and expands an idle industrial building and installs $160 million of computing hardware, cooling and building improvements over 30 months. It staffs the site with a manager, two electrical engineers and nine technicians. It clears the investment test and fails the jobs test twice: it has 12 positions, not 15, and the technician wages are unlikely to reach 150 percent of the statewide average. If it adds three roles and sets pay so that 15 permanent full-time positions with minimum health care each meet the wage floor for 12 consecutive months, the same building can qualify. The definition never changed; the payroll did.

Who holds the certificate, and whose investment counts

The application is made per location, with a separate application for each qualified data center location, and the Department issues a Qualified Data Center exemption certificate used to buy qualifying items exempt and to buy electricity at the reduced rate (Sales and Use Tax Manual (August 2026), Qualified Data Center). Form RV-F1325001 asks for the applicant's sales tax account, the data center location, the investment period, the investment amount and the number of new jobs, with a description of the investment and jobs attached, and the applicant signs it under penalty of perjury subject to audit.

The statute attaches the tests to "a data center," a building, but measures the investment as "a business investment" and the jobs as positions created during the investment period. It does not say whose investment and whose employees count when the building, the hardware and the workforce sit in different hands. Three common arrangements test that gap:

• Colocation. Where the building operator houses machines owned by its customers, the customers' hardware is not the operator's "business investment," and the customers do not own or lease the building. The statute does not say whether the customers' purchases can be aggregated with the operator's to reach $100 million, or whether a customer can use the operator's certificate.
• Separate owners within a group. Where one affiliate owns the building and another owns the machines, the definition reads as though one business makes the investment. The Department has not said whether affiliated investment is combined.
• Payroll in another entity. Where site staff are employed by an affiliate or a professional employer organization, the statute does not say whether those positions are jobs the data center "creates."

The legislature addressed one related case in 2024. A qualified data center now includes a data center that previously made the required investment and created the 15 jobs and "is transferred to an affiliate, as defined in § 67-4-2004, pursuant to a reorganization under § 368(a) of the Internal Revenue Code" (section 67-6-102(86)(B)), effective May 1, 2024 (Sales and Use Tax Manual (August 2026), Qualified Data Center, citing Pub. Ch. 886 (2024)). The rule protects status already earned in a tax-free reorganization. A transfer outside section 368(a), such as a taxable sale to an affiliate, falls outside subdivision (86)(B), and the statute does not say whether qualification survives it. The safer course is to settle which entity will own the hardware and employ the staff before the investment period begins, and to apply in that entity's name.

What the Department has not said

Four questions have no published answer as of October 14, 2026: whether the Department accepts a mining facility as a data center; whether single-purpose hashing hardware is a "computer" or "computer system" under the section 39-14-601 definitions; whether investment and jobs are aggregated across related or unrelated entities; and what follows when a threshold is missed. On the last, section 67-6-102(86) and the Department's published guidance describe no recapture mechanism for purchases made under a certificate when the investment or jobs later fall short, and this article does not guess at one. An operator that relies on the text without a ruling carries the risk of a contrary reading on audit, and a letter ruling, though binding on the Department only as to the requesting taxpayer and the facts presented, converts an inference into a position the operator can build around.

Practice notes

The analysis for a mining facility runs in a set order. The definitional question comes first and is usually answered by the construction or remodeling plan. The thresholds come second, and the jobs test deserves the closer look, because 15 permanent full-time positions at 150 percent of the state average occupational wage, each with minimum health care, is a payroll commitment many mining plans do not include. The ownership question comes third: one entity owning the hardware, employing the staff and holding the sales tax account removes the aggregation questions the statute leaves open. A taxpayer in this position files Form RV-F1325001 for the location and keeps a schedule tying each capital purchase to its payment or contract date, with payroll records showing each qualifying position's hours, wage, health coverage and 12-month tenure. Where eligibility is doubtful on any open question, a letter ruling request before the first major purchase is the sound sequence, since an adverse audit reading would reach every power bill billed at 1.5 percent. G&G State Tax Group provides sales and use tax incentive eligibility analysis and Department of Revenue ruling requests for data center and other energy-intensive facilities alongside its state and local tax practice.