DIGITAL AD TAX ACT

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104TH GENERAL ASSEMBLY
State of Illinois
2025 and 2026
SB3353

Introduced 2/4/2026, by Sen. Robert Peters

SYNOPSIS AS INTRODUCED:

New Act

Creates the Digital Advertising Tax Act. Imposes a tax on the portion
of a person's annual gross revenue that is derived from digital
advertising services in the State if the person's total revenue derived
from digital advertising in the State exceeds $150,000,000. Provides that
the tax is imposed at the rate of 10% of the annual gross revenues derived
from digital advertising services in the State. Effective immediately.
LRB104 19853 HLH 33303 b

A BILL FOR

SB3353
LRB104 19853 HLH 33303 b
1

AN ACT concerning revenue.

2

Be it enacted by the People of the State of Illinois,
3
represented in the General Assembly:

4

Section 1.
Short title.
This Act may be cited as the
5
Digital Advertising Tax Act.

6

Section 2.
Findings and intent.
The General Assembly finds
7
and declares the following:
8

(1) Many goods and services that have been
9

traditionally subject to Illinois State and local use and
10

occupation taxes have avoided taxation in the digital era.
11

Many digital transactions are harder to bring into the
12

sales tax base because, instead of paying a monetary fee,
13

customers sometimes barter their personal information for
14

access to digital platforms. This personal information is
15

in turn sold for use in targeted advertisements on digital
16

platforms.
17

(2) The value of the consumption provided by digital
18

platforms is typically greater as the size of the network
19

is greater. The General Assembly finds that the
20

consumption value provided by networks of a small size is
21

negligible, especially when compared to the compliance
22

burden that would be imposed on smaller digital platforms.

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LRB104 19853 HLH 33303 b
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Section 3.
Definitions.
As used in this Act:
2

"Annual gross revenue" means income or revenue from all
3
sources, before any expenses or taxes, computed according to
4
generally accepted accounting principles.
5

"Assessable base" means the annual gross revenue derived
6
from digital advertising services in the State during the
7
taxable year.
8

"Department" means the Department of Revenue.
9

"Digital advertising services" means advertising services
10
on a digital interface, including advertisements in the form
11
of banner advertising, search engine advertising, interstitial
12
advertising, and other comparable advertising services that
13
use personal information about the people to whom the ads are
14
being served.
15

"Digital interface" means any software that a user is able
16
to access, including a website, part of a website, or an
17
application.
18

"Eligible taxpayer" means a person whose annual gross
19
revenues from digital advertising in the State for the taxable
20
year exceeds $150,000,000.
21

"Person" means any natural individual, firm, partnership,
22
association, corporation, limited liability company, or trust;
23
any receiver, executor, trustee, guardian, or other
24
representative appointed by order of any court; or any other
25
entity. Unless expressly provided otherwise, the term "person"
26
does not include a governmental entity or a unit or

SB3353
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LRB104 19853 HLH 33303 b
1
instrumentality of a government entity.
2

"User" means an individual or any other person who
3
accesses a digital interface with a device.

4

Section 4.
Tax imposed.
5

(a) A tax is imposed on the portion of each eligible
6
taxpayer's annual gross revenue that is derived from digital
7
advertising services in the State.
8

(b) For the purposes of this Act, the portion of the annual
9
gross revenue that is derived from digital advertising
10
services in the State shall be determined using an
11
apportionment factor. The apportionment factor is a fraction,
12
the numerator of which is the annual gross revenues of a person
13
derived from digital advertising in the State during the
14
taxable year and the denominator of which is the annual gross
15
revenues of a person derived from digital advertising in the
16
entire United States during the taxable year.
17

(c) The Department shall adopt rules that determine the
18
location from which revenues from digital advertising services
19
are derived.

20

Section 5.
Tax rate.
The rate of the tax imposed under this
21
Act is 10% of the eligible taxpayer's assessable base.

22

Section 6.
Returns.
23

(a) Each eligible taxpayer shall complete and file a

SB3353
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LRB104 19853 HLH 33303 b
1
return with the Department on or before April 15 of the year
2
after the taxable year in which the tax is incurred.
3

(b) A person that reasonably expects that the person's
4
annual gross revenues derived from digital advertising
5
services in the State will exceed $150,000,000 shall complete
6
and file with the Department a declaration of estimated tax on
7
or before April 15 of that year.
8

A person who is required to file a declaration of
9
estimated tax under this subsection for a taxable year shall
10
complete and file with the Department a quarterly estimated
11
tax return on or before June 15, September 15, and December 15
12
of that year.
13

(c) A person who is required to file a return under this
14
Section shall file with the return an attachment that provides
15
to the Department any information that the Department requires
16
to determine the person's annual gross revenues derived from
17
digital advertising services in the State.
18

(d) A person required to file a return under this Section
19
shall maintain records of digital advertising services
20
provided in the State and the basis for the calculation of the
21
digital advertising tax owed.
22

(e) The chief executive officer, proprietor, owner, or
23
highest-ranking manager of an eligible taxpayer shall sign,
24
under penalty of perjury, annual and quarterly returns to
25
certify the accuracy of the information contained in the
26
return. The forms for annual and quarterly returns prescribed

SB3353
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LRB104 19853 HLH 33303 b
1
by the Department shall include a warning that the person is
2
signing the return under penalty of perjury.

3

Section 7.
Tax payment.
4

(a) Except as provided in subsection (b) of this Section,
5
each eligible taxpayer who is required to file a return under
6
Section 6 of this Act shall pay the tax under this Act with the
7
return that covers the period for which the tax is due.
8

(b) Any person who is required to file estimated digital
9
advertising tax returns under paragraph (2) of subsection (b)
10
of Section 6 of this Act shall pay:
11

(1) at least 25% of the estimated digital advertising
12

tax shown on the declaration or amended declaration for
13

the taxable year:
14

(A) with the declaration or amended declaration
15

that covers the year; and
16

(B) with each quarterly return for that year; and
17

(2) any unpaid digital advertising tax for the year
18

shown on the person's return that covers that year with
19

the return.

20

Section 8.
Collection.
The Department shall collect the
21
tax imposed by this Act. Money collected, after deducting
22
amounts necessary for administration and enforcement by the
23
Department, shall be paid into the General Revenue Fund.

SB3353
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LRB104 19853 HLH 33303 b
1

Section 9.
Penalties.
When the amount due is under $300,
2
any person subject to the provisions of this Act who fails to
3
file a return, or who violates any other provision of Section 6
4
or Section 7 of this Act, or who fails to keep books and
5
records as required by this Act, or who files a fraudulent
6
return, or who willfully violates any rule or regulation of
7
the Department for the administration and enforcement of the
8
provisions of this Act, or any officer or agent of a
9
corporation or manager, member, or agent of a limited
10
liability company subject to this Act who signs a fraudulent
11
return filed on behalf of such corporation or limited
12
liability company, or any accountant or other agent who
13
knowingly enters false information on the return of any
14
taxpayer under this Act is guilty of a Class 4 felony.
15

When the amount due is $300 or more, any person subject to
16
the provisions of this Act who fails to file a return, or who
17
violates any other provision of Section 6 or Section 7 of this
18
Act, or who fails to keep books and records as required by this
19
Act, or who files a fraudulent return, or who willfully
20
violates any rule or regulation of the Department for the
21
administration and enforcement of the provisions of this Act,
22
or any officer or agent of a corporation or manager, member, or
23
agent of a limited liability company subject to this Act who
24
signs a fraudulent return filed on behalf of such corporation
25
or limited liability company, or any accountant or other agent
26
who knowingly enters false information on the return of any

SB3353
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LRB104 19853 HLH 33303 b
1
taxpayer under this Act is guilty of a Class 3 felony.
2
A prosecution for any act in violation of this Section may be
3
commenced at any time within 3 years of the commission of that
4
Act.

5

Section 99.
Effective date.
This Act takes effect upon
6
becoming law.

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