Does an out-of-state ESCO that resells electric power to Illinois commercial and industrial customers, without delivering or distributing the power itself, owe Illinois sales tax, electricity excise tax, electricity distribution tax, invested capital tax, or the Energy Assistance Charge?

Plain-English summary

An out-of-state energy supply company (ESCO) that had just started selling electric power to commercial and industrial customers in Illinois asked the Department to confirm which of several Illinois utility-related taxes applied to it. The company acts as a retail power reseller between the grid operator (the Independent System Operator) and the end user, but it does not own or operate power lines and does not itself deliver or distribute electricity — that remains the job of the local utility.

The Department's response walks through four separate taxes:

• Sales/Use Tax does not apply to electricity at all, because electricity (like natural gas and water) delivered by wire or pipe is expressly excluded from the Retailers' Occupation Tax Act and the Use Tax Act.
• Electricity Excise Tax (35 ILCS 640) is a tax on the end user's consumption of electricity, collected and remitted by the "delivering supplier" — the last supplier that actually delivers the electricity to the purchaser. If the company isn't delivering electricity as the Act defines that term, it does not incur this tax; the Illinois utility that actually delivers the power does.
• Public Utilities Revenue Act tax on distribution of electricity (35 ILCS 620/2a.1) applies to entities that distribute electricity over facilities they own, lease, or control. If the company doesn't distribute electricity in that sense, it doesn't owe this tax either.
• Energy Assistance Charge (305 ILCS 20/13) is collected by public utilities, electric cooperatives, and municipal utilities that deliver electricity or distribute natural gas in Illinois. Alternative retail electric suppliers are excluded from the definition of "public utility," so a company meeting that definition — and not otherwise a public utility, cooperative, or municipal utility engaged in delivery — is not required to impose the charge.
• Invested Capital Tax (via Form ICT-4) is limited to electric cooperatives, so a non-cooperative ESCO would not be liable for it.

Because the GIL doesn't independently confirm the company's specific facts (whether it truly has no Illinois delivery/distribution role), the Department's answer is conditional: if the company is not delivering or distributing electricity as those terms are defined in the statutes, none of the electricity-specific taxes apply to it, and the Illinois utility that does deliver/distribute the power remains responsible.

What this means for you

ESCOs and other retail power marketers

If you resell electricity in Illinois without owning, leasing, or controlling the wires or distribution facilities used to deliver it, you likely do not owe Electricity Excise Tax, electricity distribution tax under the Public Utilities Revenue Act, or the Energy Assistance Charge — those fall on the entity that actually delivers or distributes the power. But the analysis can change if you lease transmission/distribution equipment from an Illinois utility or otherwise control the delivery facilities, so confirm your exact contractual and physical relationship to the wires before assuming you're out of scope.

Businesses purchasing electricity in Illinois

Sales of electricity delivered by wire are not subject to Illinois Retailers' Occupation (sales) Tax or Use Tax under 35 ILCS 120/2 and 35 ILCS 105/3. Instead, electricity consumption is taxed separately through the Electricity Excise Tax, which your delivering supplier collects and remits on your behalf (or which you self-assess if you qualify as a self-assessing purchaser).

Accountants and tax professionals advising utility-adjacent clients

This GIL is a useful map of which of the four Illinois "utility tax" regimes — Electricity Excise Tax (35 ILCS 640), Public Utilities Revenue Act distribution tax (35 ILCS 620), Invested Capital Tax (limited to electric cooperatives), and the Energy Assistance Charge (305 ILCS 20/13) — actually reaches a given entity. The key threshold question for most of them is whether the client is a "delivering supplier" or is "distributing electricity" as those terms are specifically defined, not merely whether the client sells power.

Common questions

Q: Does an ESCO that resells electricity but doesn't deliver it owe Illinois sales tax?
A: No. Electricity delivered to customers by wire is excluded from tax under both the Retailers' Occupation Tax Act and the Use Tax Act (35 ILCS 120/2; 35 ILCS 105/3), so no Illinois sales/use tax return (ST-1) is required for electricity sales.

Q: Who is responsible for the Electricity Excise Tax (Form RPU-13) if a reseller doesn't deliver the power itself?
A: The tax is collected and remitted by the "delivering supplier" — the last supplier in the chain that actually delivers electricity to the purchaser (35 ILCS 640/2-7, 2-9). If a company doesn't meet that definition, the Illinois utility that actually delivers the electricity handles the tax instead.

Q: When does the Public Utilities Revenue Act's distribution tax apply?
A: It applies to an electric cooperative, electric utility, or alternative retail electric supplier that distributes electricity — meaning it delivers electricity to end users over facilities it owns, leases, or controls (35 ILCS 620/2a.1). A company with no such facilities in Illinois would not incur this tax.

Q: Does the Energy Assistance Charge apply to an alternative retail electric supplier?
A: Generally no. Alternative retail electric suppliers are excluded from the definition of "public utility" under 220 ILCS 5/3-105(a), and the Energy Assistance Charge under 305 ILCS 20/13 is imposed on public utilities, electric cooperatives, and municipal utilities engaged in delivering electricity or distributing natural gas.

Q: Is invested capital tax (Form ICT-4) relevant to a non-cooperative ESCO?
A: No — the ruling states that only electric cooperatives are liable for invested capital tax, so an ESCO that is not organized as an electric cooperative would not use Form ICT-4 for that purpose.

Citations and references

Statutes and regulations:

• 35 ILCS 620 and 35 ILCS 620/2a.1 (Public Utilities Revenue Act; tax on distribution of electricity)
• 35 ILCS 640, 35 ILCS 640/2-3, 2-4, 2-7, 2-7.5, 2-9 (Electricity Excise Tax Law: definitions, imposition, collection, registration)
• 305 ILCS 20/13 (Energy Assistance Charge)
• 35 ILCS 120/2; 35 ILCS 105/3 (sales/use tax exclusion for wire/pipe-delivered electricity, gas, water)
• 86 Ill. Adm. Code 130.101; 86 Ill. Adm. Code 150.101 (Retailers' Occupation Tax and Use Tax regulations)
• 220 ILCS 5/3-105(a); 220 ILCS 5/16-102 (Public Utilities Act definitions of "public utility" and "alternative retail electric supplier")
• 2 Ill. Adm. Code 1200.110 (PLR procedure); 2 Ill. Adm. Code 1200.120 (GIL procedure, non-binding)

Source

• Landing page: https://taxarchive.illinois.gov/research/legal/letter-rulings/sales-tax/2022.html
• Original PDF: https://tax.illinois.gov/content/dam/soi/en/web/taxarchive/research/legal/letter-rulings/sales-tax/2022/st22-0012-gil.pdf

Original ruling text

ST-22-0012 06/21/2022 PUBLIC UTILITY TAXES
This letter discusses the Electricity Excise Tax Law, the Public Utilities Revenue
Law, and the Energy Assistance charge. See 35 ILCS 620, 35 ILCS 640, and
305 ILCS 20. (This is a GIL.)
June 21, 2022
NAME
ADDRESS
Dear NAME:
This letter is in response to your letter in which you requested information. The
Department issues two types of letter rulings. Private Letter Rulings (“PLRs”) are
issued by the Department in response to specific taxpayer inquiries concerning the
application of a tax statute or rule to a particular fact situation. A PLR is binding on the
Department, but only as to the taxpayer who is the subject of the request for ruling and
only to the extent the facts recited in the PLR are correct and complete. Persons
seeking PLRs must comply with the procedures for PLRs found in the Department’s
regulations at 2 Ill. Adm. Code 1200.110. The purpose of a General Information Letter
(“GIL”) is to direct taxpayers to Department regulations or other sources of information
regarding the topic about which they have inquired. A GIL is not a statement of
Department policy and is not binding on the Department. See 2 Ill. Adm. Code
1200.120. You may access our website at www.tax.illinois.gov to review regulations,
letter rulings and other types of information relevant to your inquiry.
The nature of your inquiry and the information you have provided require that we
respond with a GIL. In your letter you have stated and made inquiry as follows:
We have recently started doing business in the State of Illinois including
our first sale and would like to clarify the requirements surrounding sales
tax, invested capital tax, excise tax, and any other applicable tax.
We are an ESCO (Energy Supply Company) a retail provider of
electric power to commercial and industrial customers who seek an
alternate provider besides their current supplier or utility. We do not
deliver power nor maintain power lines as those duties remain with the
local utility company.
We were formed in the state of STATE1 in MONTH YEAR EIN number

-####### and our primary offices are in STATE2. We received our

certificate of registration for the state of Illinois (ID ####-####) on [sic]
MONTH YEAR. Our first customer became active in Illinois in MONTH
and we therefore filed our first return with a dollar amount other than $$ in
MONTH. For the months of MONTH and MONTH we have filed the RPU-

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13 and paid $$$$$ and $$$$$ respectively for the electricity excise tax
related to MONTH and MONTH sales activity.
We have read the guidance on what we believe to be the appropriate
forms to assess for tax purposes but have questions on our
understanding and are asking you to advise on our comprehension.
Once confirmed I believe we will need to alter our registration for the
applicable tax. Below is our current understanding:
There are no sales taxes related to the sale of power as it is not tangible
personal property. Therefore a sales tax return (ST-1) is not applicable.
The RPU-6 Assistance Charges Return for Electricity Distributors is not
applicable as we are not a distributor nor do we collect Assistance
Charges.
The RPU-13, Electricity Excise Tax Return. We have for the past 2
months filed and paid this tax as it was unclear in speaking with
representatives and reading the instructions which state that "if you are in
the business of distributing, supplying, furnishing, or selling electricity for
use or consumption and not for resale.", the RPU-13 must be filed. We
are in the business of supplying electricity however, we do not purchase
electricity for our own use but rather we act a as [sic] retailer between
the Independent System Operator and the large industrial customer,
(the end user). Please can you clarify the requirements here and if the
RPU-13, or other form, may be applicable for us.
The ICT-4 Electricity Distribution and Invested Capital Tax Return is
applicable to us. We believe this is applicable because we have
Invested Capital in our business and a presence in Illinois due to sales
activity. We do not have a physical presence or any employees in
Illinois and we do not distribute electricity.
Please can you confirm that our understanding agrees to yours or
where we might deviate and need to address any requirements for
proper tax reporting in Illinois.
DEPARTMENT RESPONSE:
The Retailers' Occupation Tax Act imposes a tax upon persons engaged in this
State in the business of selling tangible personal property at retail to purchasers for use
or consumption. See 86 Ill. Adm. Code 130.101. Use Tax is imposed on the privilege
of using, in this State, any kind of tangible personal property that is purchased

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anywhere at retail from a retailer. See 86 Ill. Adm. Code 150.101.
comprise what is commonly known as “sales tax” in Illinois.

These taxes

Sales of (1) electricity delivered to customers by wire; (2) natural or artificial gas
that is delivered to customers through pipes, pipelines, or mains; and (3) water that is
delivered to customers through pipes, pipelines, or mains are not subject to tax under
these Acts. 35 ILCS 120/2; 35 ILCS 105/3.
The Electricity Excise Tax Law imposes a tax on the privilege of using in Illinois
electricity purchased for use or consumption and not for resale. 35 ILCS 640/2-4. The
tax is imposed on the user or consumer of electricity and is collected and remitted to the
Department by the delivering supplier. 35 ILCS 640/2-9. The tax upon the user or
consumer of electricity is based upon the amount of kilowatt-hours delivered by the
delivering supplier to the user in this State. The delivering supplier must register with
the Department. 35 ILCS 640/2-7.5.
"Delivering supplier" means any person engaged in the business of
delivering electricity to persons for use or consumption and not for resale,
but not an entity engaged in the practice of resale and redistribution of
electricity within a building prior to January 2, 1957, and who, in any case
where more than one person participates in the delivery of electricity to a
specific purchaser, is the last of the suppliers engaged in delivering the
electricity prior to its receipt by the purchaser.
"Delivering supplier maintaining a place of business in this State", or any
like term, means any delivering supplier having or maintaining within this
State, directly or by a subsidiary, an office, generation facility,
transmission facility, distribution facility, sales office or other place of
business, or any employee, agent or other representative operating within
this State under the authority of such delivering supplier or such delivering
supplier's subsidiary, irrespective of whether such place of business or
agent or other representative is located in this State permanently or
temporarily, or whether such delivering supplier or such delivering
supplier's subsidiary is licensed to do business in this State.
"Purchaser" means any person who acquires electricity for use or
consumption and not for resale, for a valuable consideration. 35 ILCS
640/2-3.
The tax imposed by the Electricity Excise Tax Law shall be collected from the
purchaser by any delivering supplier maintaining a place of business in this State with
respect to the electricity delivered by such delivering supplier to or for the purchaser. 35
ILCS 640/2-7. The delivering supplier is also required to file a return and remit the tax.
35 ILCS 640/2-9. If your Company is not delivering electricity as that term is defined in

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the Act, then it will not incur Electricity Excise Tax. The Illinois utility delivering the
electricity would collect the appropriate amount of Electricity Excise Tax from the
persons (other than self-assessing purchasers) to whom the electricity was delivered for
use or consumption. See also 35 ILCS 640/2-7. Please note that this analysis may be
different if your Company is leasing the transmission or distribution equipment from an
Illinois utility or if it controls the facilities over which the electricity is delivered.
Section 2a.1 of the Public Utilities Revenue Act imposes a tax on the distribution
of electricity in this State. 35 ILCS 620/2a.1. The tax upon the distributors of electricity
is based upon the amount of kilowatt-hours distributed by the taxpayer in this State
during the taxable period. Electric cooperatives that are required to file reports with the
Rural Utilities Service are taxed at a rate equal to 0.8% of such cooperative's invested
capital for the taxable period.
"Distributing electricity" means delivering electric energy to an end user
over facilities owned, leased, or controlled by the taxpayer.
"Taxpayer" for purposes of the tax on the distribution of electricity imposed
by this Act means an electric cooperative, an electric utility, or an
alternative retail electric supplier (other than a person that is an alternative
retail electric supplier solely pursuant to subsection (e) of Section 16-115
of the Public Utilities Act), as those terms are defined in the Public Utilities
Act, engaged in the business of distributing electricity in this State for use
or consumption and not for resale.
If your Company is not distributing electricity as that term is defined in the Act,
then it will not incur electricity distribution tax. The Illinois utility would incur the tax on
the distribution of that electricity. Please note, once again, that this analysis may be
different if your Company is leasing the transmission or distribution equipment from an
Illinois utility or if it controls the facilities over which the electricity is delivered.
Only electric cooperatives are liable for invested capital tax. See Form ICT-4
Electricity Distribution and Invested Capital Return.
The Energy Assistance Charge is a charge collected by each public utility,
electric cooperative, as defined in Section 3.4 of the Electric Supplier Act, and municipal
utility, as referenced in Section 3-105 of the Public Utilities Act, that is engaged in the
delivery of electricity or the distribution of natural gas within the State of Illinois upon
each of its customer accounts. The delivering public utility, municipal electric or gas
utility, or electric or gas cooperative for a self-assessing purchaser remains subject to
the collection of the Energy Assistance Charge. Municipal electric utilities and electric
cooperatives may elect not to assess the Energy Assistance Charge. 305 ILCS 20/13.

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Alternative retail electric suppliers as defined in Article XVI of the Public Utilities
Act are excluded from the definition of “public utility.” 220 ILCS 5/3-105(a). See 220
ILCS 5/16-102 for the definition of “alternative retail electric supplier.”
If your business meets the definition of “alternative retail electric supplier,” is not
a public utility, electric cooperative, or municipal utility as those terms are used in 305
ILCS 20/13, or if it is one of these entities, does not engage in the delivery of electricity
within the State of Illinois, then it is not required to impose the Energy Assistance
Charge.
I hope this information is helpful. If you require additional information, please
visit our website at www.tax.illinois.gov or contact the Department’s Taxpayer
Information Division at (217) 782-3336.
Very truly yours,
Richard S. Wolters
Associate Counsel
RSW:rkn