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SB1180 • 2026

DOR; income tax forms; conformity

SB1180 - DOR; income tax forms; conformity

Taxes
Passed Legislature

This bill passed both chambers and reached final enrollment, even if later executive action is not shown here.

Sponsor
J.D. Mesnard
Last action
2026-06-12
Official status
Sent to governor
Effective date
Not listed

Plain English Breakdown

Using official source text because the generated explanation was unavailable or could not be confirmed against the official bill text.

DOR; income tax forms; conformity

SB1180 - 572R - Senate Fact Sheet Assigned to FIN����������������������������������������������������������������������������������������������������������� AS PASSED BY HOUSE ARIZONA STATE SENATE Fifty-Seventh Legislature, Second Regular Session AMENDED FACT SHEET FOR S.B.

What This Bill Does

  • SB1180 - 572R - Senate Fact Sheet Assigned to FIN����������������������������������������������������������������������������������������������������������� AS PASSED BY HOUSE ARIZONA STATE SENATE Fifty-Seventh Legislature, Second Regular Session AMENDED FACT SHEET FOR S.B.
  • 1180 income tax forms; conformity Purpose Requires the Arizona Department of Revenue (ADOR), when prescribing income tax forms and instructions, to assume that the Legislature will enact an amendment to state law that results in conformity to the provisions of the U.S.
  • Internal Revenue Code (U.S.
  • IRC), but only to the extent those provisions affect federal adjusted gross income (FAGI) or federal taxable income and implements the provisions relating to itemized deductions.

Limits and Unknowns

  • This entry is temporarily using official source text because the generated explanation could not be confirmed against the official bill text during the last sync.

Amendments

These notes stay tied to the official amendment files and metadata from the legislature.

Plain English: VINCE PEREZ 6/11/2026 (602) 926-3848 ARIZONA HOUSE OF REPRESENTATIVES FLOOR AMENDMENT EXPLANATION 57th Legislature, 2nd Regular Session Majority Research Staff SB 1180: DOR; income tax forms; conformity OLSON SUBSTITUTE FLOOR AMENDMENT 1.

  • VINCE PEREZ 6/11/2026 (602) 926-3848 ARIZONA HOUSE OF REPRESENTATIVES FLOOR AMENDMENT EXPLANATION 57th Legislature, 2nd Regular Session Majority Research Staff SB 1180: DOR; income tax forms; conformity OLSON SUBSTITUTE FLOOR AMENDMENT 1.
  • Requires the Department of Revenue (DOR) to supplement the income tax forms and instructions if nonconformity occurs and provides deadlines for when they are to be published.
  • 2.
  • Includes a citation to the itemized deduction statute for DOR to consider when prescribing the forms and instructions.

Plain English: Fifty-seventh Legislature Ways & Means Second Regular Session S.B.

  • Fifty-seventh Legislature Ways & Means Second Regular Session S.B.
  • 1180 PROPOSED HOUSE OF REPRESENTATIVES AMENDMENTS TO S.B.
  • 1180 (Reference to Senate engrossed bill) The bill as proposed to be amended is reprinted as follows: 1 Section 1.
  • Title 43, chapter 3, article 2, Arizona Revised 2 Statutes, is amended by adding section 43-329, to read: 3 43-329.
  • This amendment summary is using official source text because generated interpretation was skipped for this run.

Plain English: Fifty-seventh Legislature Second Regular Session COMMITTEE ON WAYS & MEANS HOUSE OF REPRESENTATIVES AMENDMENTS TO S.B.

  • Fifty-seventh Legislature Second Regular Session COMMITTEE ON WAYS & MEANS HOUSE OF REPRESENTATIVES AMENDMENTS TO S.B.
  • 1180 (Reference to Senate engrossed bill) The bill as proposed to be amended is reprinted as follows: 1 Section 1.
  • Title 43, chapter 3, article 2, Arizona Revised 2 Statutes, is amended by adding section 43-329, to read: 3 43-329.
  • Returns; form and instruction preparation; conformity 4 and nonconformity assumption; definitions 5 A.

Plain English: Amendment explanation prepared by Molly Graver 02/23/2026 Bill Number: S.B.

  • Amendment explanation prepared by Molly Graver 02/23/2026 Bill Number: S.B.
  • 1180 Mesnard Floor Amendment Reference to: printed bill Amendment drafted by: Leg.Council FLOOR AMENDMENT EXPLANATION • Specifies that the Arizona Department of Revenue, when updating the annual tax forms and instructions, must assume that the Legislature will conform to the U.S.
  • Internal Revenue Code, but only to the extent those provisions affect federal adjusted gross income or federal taxable income.
  • Fifty-seventh Legislature Mesnard Second Regular Session S.B.

Bill History

  1. 2026-06-12 Arizona State Legislature

    Sent to governor

  2. 2026-06-12 Senate

    Senate passed

  3. 2026-06-12 Senate

    Senate passed

  4. 2026-06-12 Senate

    Transmitted to Senate

  5. 2026-06-12 House

    House third read passed

  6. 2026-06-11 House

    House committee of the whole

  7. 2026-03-31 House

    House minority caucus

  8. 2026-03-31 House

    House majority caucus

  9. 2026-03-03 House

    House second read

  10. 2026-03-02 House

    House Rules: C&P

  11. 2026-03-02 House

    House Ways & Means: DPA

  12. 2026-03-02 House

    House first read

  13. 2026-02-24 House

    Transmitted to House

  14. 2026-02-24 Senate

    Senate third read passed

  15. 2026-02-24 Senate

    Senate committee of the whole

  16. 2026-02-10 Senate

    Senate minority caucus

  17. 2026-02-10 Senate

    Senate majority caucus

  18. 2026-02-09 Senate

    Senate consent calendar

  19. 2026-01-21 Senate

    Senate second read

  20. 2026-01-20 Senate

    Senate Rules: PFC

  21. 2026-01-20 Senate

    Senate Finance: DP

  22. 2026-01-20 Senate

    Senate first read

Official Summary Text

SB1180 - 572R - Senate Fact Sheet

Assigned to
FIN����������������������������������������������������������������������������������������������������������� AS
PASSED BY HOUSE

ARIZONA STATE SENATE

Fifty-Seventh
Legislature, Second Regular Session

AMENDED

FACT SHEET FOR
S.B. 1180

income tax forms;
conformity

Purpose

Requires the
Arizona Department of Revenue (ADOR), when prescribing income tax forms and
instructions, to assume that the Legislature will enact an amendment to state
law that results in conformity to the provisions of the U.S. Internal Revenue
Code (U.S. IRC), but only to the extent those provisions affect federal
adjusted gross income (FAGI) or federal taxable income and implements the
provisions relating to itemized deductions. Prescribes a timeline for ADOR to
supplement the annual tax forms and instructions when nonconformity occurs for
a taxable year.

Background

The Arizona
Legislature periodically updates the statutory definition of the U.S. IRC to
include any federal provisions that became effective in the preceding calendar
year as a means of paralleling the computation of Arizona income tax and other
statutory references throughout the Arizona Revised Statutes to the amended
U.S. IRC. Tax conformity with the U.S. IRC is deemed necessary because the
calculation of Arizona corporate income tax liability begins with federal
taxable income. Similarly, FAGI is the starting point for individual income tax
assessment.

Conformity
means
an amendment to
A.R.S. � 43-105
that results in adoption of
the definition of the U.S. IRC for the taxable year.
Nonconformity
means
either: 1) conformity plus another amendment that does not conform to specific
provisions of the U.S. IRC as statutorily defined for the taxable year; or 2)
no amendment to the definition of U.S. IRC for the taxable year (
A.R.S. � 43-107
).

By adopting the
income tax statutes, the Legislature declared its intent to adopt the
provisions of the U.S. IRC relating to FAGI and federal taxable income, subject
only to modifications contained in state law (
A.R.S. � 43-102
).

All tax returns
required by state law must be in a form that is prescribed by ADOR and ADOR
must prepare blank return forms and furnish the forms on request (
A.R.S. � 43-323
).

There is no
anticipated fiscal impact to the state General Fund associated with this
legislation.

Provisions

1.

Requires ADOR, when prescribing income tax forms and instructions, to
assume that the Legislature will enact an amendment to state law that results
in conformity to the provisions of the U.S. IRC, but only to the extent those
provisions affect FAGI or federal taxable income and implement provisions
relating to itemized deductions.

2.

Stipulates
that, if the Legislature enacts nonconformity, ADOR must supplement the
published forms and instructions related to the nonconformity using the following
prescribed timeline:

a)

for nonconformity due to an additional amendment beyond adopting the
definition of U.S. IRC that is enacted by February 15 of the year following the
close of the relevant taxable year, the supplemental forms must be published as
quickly as practicable;

b)

for nonconformity due to an additional amendment beyond adopting the
definition of U.S. IRC that is enacted on or after February 16 of the year
following the close of the relevant taxable year, the supplemental forms must
be published by January 1 of the second year following the close of that
taxable year; or

c)

for
nonconformity due to no amendment to the definition of U.S. IRC, the
supplemental forms must be published by July 15 of the second year following
the close of that taxable year.

3.

Defines terms.

4.

Contains a statement of legislative intent.

5.

Makes technical and conforming changes.

6.

Becomes effective on the general effective date.

Amendments Adopted by
Committee of the Whole

�

Specifies that ADOR, when updating the annual tax forms and
instructions, must assume that the Legislature will conform to the U.S. IRC,
but only to the extent those provisions affect federal adjusted gross income or
federal taxable income.

Amendments Adopted by the
House of Representatives

1.

Prescribes a timeline for ADOR to supplement the annual tax forms and
instructions when nonconformity occurs for a taxable year.

2.

Specifies that ADOR, when updating the annual tax forms and
instructions, must assume that the Legislature will conform to the U.S. IRC,
but only to the extent those provisions affect federal adjusted gross income or
federal taxable income and implement provisions relating to itemized deductions.

3.

Adds a statement of legislative intent.

4.

Makes technical and conforming changes.

Senate Action
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House
Action

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Prepared by Senate Research

June 12, 2026

MG/hk

Current Bill Text

Read the full stored bill text
SB1180 - 572R - H Ver

House Engrossed
Senate Bill

DOR; income tax
forms; conformity

State of Arizona

Senate

Fifty-seventh Legislature

Second Regular Session

2026

SENATE BILL 1180

AN
ACT

amending section 43-107, Arizona
Revised Statutes; amending title 43, chapter 3, article 2, Arizona Revised
Statutes, by adding section 43-329; relating to income tax returns.

(TEXT OF BILL BEGINS ON NEXT PAGE)

Be it
enacted by the Legislature of the State of Arizona:

Section 1. Section 43-107, Arizona Revised
Statutes, is amended to read:

START_STATUTE
43-107.

Nonconformity in application of internal revenue code; abatement
of penalties and interest; form and instruction preparation; definitions

A. Notwithstanding
sections 42-1123 and 42-1125,
no
interest or
penalty may
not
be assessed on a nonconformity deficiency
if all of the following are true for a taxable year:

1. The taxpayer filed a return and paid the taxes
due, relying on the department's published forms and instructions.

2. Conformity does not occur.

3. The department supplements
its

the
published forms and instructions related to
nonconformity and requires the taxpayer to file an amended return.

4.
By the extended due date of the
next taxable year's return

ON OR BEFORE THE EXTENDED
RETURN DUE DATE FOR THE SECOND YEAR FOLLOWING THE CLOSE OF THAT TAXABLE YEAR
,
the taxpayer amends
its

the taxpayer's
return
to report the nonconformity deficiency and pays the additional tax in the
manner prescribed by the department.

B. IF NONCONFORMITY
OCCURS FOR A TAXABLE YEAR, THE DEPARTMENT SHALL SUPPLEMENT THE PUBLISHED FORMS
AND INSTRUCTIONS RELATING TO NONCONFORMITY AS FOLLOWS:

1. For nonconformity as
prescribed by subsection D, paragraph 2, subdivision (
a
) of this section enacted on or
before FEBRUARY 15 of the year following the close of that taxable year, the
supplemental forms and instructions shall be published as quickly as
practicable.

2. For nonconformity as
prescribed by subsection D, paragraph 2, subdivision (
a
) of this section enacted from and
after FEBRUARY 15 of the year following the close of that taxable year, the
supplemental forms and instructions shall be published on or before January 1
of the second year following the close of that taxable year.

3. For nonconformity as
prescribed by subsection D, paragraph 2, subdivision (
b
) of this section, the
supplemental forms and instructions shall be published on or before July 15 of
the second year following the close of that taxable year.

B.
C.
Notwithstanding section 42-1123,
the department shall not pay interest on refunds resulting from an amended
return related to nonconformity unless the refund is paid more than sixty days
after the due date set forth in subsection A, paragraph 4 of this section or
filing date, whichever is later.

C.

D.
For
the purposes of this section:

1. "Conformity" means an amendment to
section 43-105 that results in adoption of the definition of the internal
revenue code for the taxable year.

2. "Nonconformity" means either:

(a) Conformity plus another amendment to this title
that does not conform to specific provisions of the internal revenue code as
defined in section 43-105 for the taxable year.

(b) No amendment to section 43-105 for the
taxable year.
END_STATUTE

Sec. 2. Title 43, chapter 3, article 2, Arizona
Revised Statutes, is amended by adding section 43-329, to read:

START_STATUTE
43-329.

Returns; form and instruction preparation; conformity assumption;
definitions

A. Pursuant to section
43-102, for the purposes of prescribing the forms and instructions
required for a taxpayer to file a return pursuant to this title, the department
shall assume that the legislature will enact an amendment to section 43-105
that results in conformity to the provisions of the internal revenue code
, but only to the
extent those provisions
affect federal adjusted gross income
or federal taxable
income AND IMPLEMENT SECTION 43-1042
. �If the legislature enacts
nonconformity, the department shall supplement the published forms and
instructions related to the nonconformity
pursuant to section 43-107
.

B. For the purposes of
this section, "conformity" and "nonconformity" have the
same meanings prescribed in section 43-107.
END_STATUTE

Sec. 3.
Legislative intent

It is the intent of the legislature to
establish a consistent conformity cycle that:

1. Provides taxpayers and
tax professionals with timely and reliable tax forms and instructions.

2. Allows the legislature
sufficient opportunity to review and determine whether federal tax law changes
should be adopted for Arizona income tax purposes.

3. Reduces administrative
burdens on the department of revenue.

4. Minimizes midyear
revisions to income tax forms, filing requirements, software programming and
taxpayer guidance.

5. Preserves the
legislature's authority to adopt, reject or modify federal income tax law
changes while providing certainty regarding the taxable year to which such
changes apply.