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       Illinois Department of Revenue                                      Use for tax year ending on or after 
                                                                           December 31, 2023 and before 
       IL-1065-X Instructions                                              December 31, 2024.
                                                                                                                             2023
                                                                            Acknowledgement that the IRS received your amended 
            General Information                                         return is not acceptable proof of federal finalization.
Who must file Form IL-1065-X?                                           If your federal change decreases the tax due to Illinois and 
You should file Form IL-1065-X, Amended Partnership Replacement         you are entitled to a refund or credit carryforward, you must file 
Tax Return, if you are amending a previously filed, processable Form    Form IL-1065-X within two years plus 120 days of federal finalization.
IL-1065, Partnership Replacement Tax Return, for a tax year ending      If your federal change increases the tax due to Illinois, you must 
on or after December 31, 2006. Your change can occur from a state       file Form IL-1065-X and pay any additional tax within 120 days of 
or federal change that affects items used to compute your Illinois net  IRS partial agreement or finalization. In order to avoid late payment 
income, net loss, or credits, such as                                   penalties, you must pay any additional tax to IDOR and attach proof 
• an amendment of your federal income tax return,                       of the federal finalization date, showing the change was reported to 
• an adjustment made by the Internal Revenue Service (IRS), or          Illinois within 120 days of IRS acceptance, or you may be assessed a 
• any other recomputation or redetermination.                           late-payment penalty.
A separate amended return must be filed for each tax year you need          If you fail to notify us of your change by filing Form IL-1065-X, 
to amend.                                                               we may issue a notice of deficiency at any time. Once you file your 
                                                                        change, we may issue a notice of deficiency within two years.
What if I need to change my return before the 
                                                                        What if I am amending my return due to multiple 
extended due date expires?                                              federal adjustments?
If you filed your original Form IL-1065 and a state or federal          If you are amending your original Form IL-1065 due to multiple 
correction or change needs to be made before the extended due           federal adjustments that were finalized on different dates, then 
date expires (see the instructions of your original return), you should you must complete separate amended Illinois returns for each 
file Form IL-1065-X. Due to the automatic extension, any return filed   federal finalization date. For example, if you receive a 2023 return 
after the original return and on or before the extended due date will   adjustment from the IRS on July 10, 2024, then in August 2024, 
be treated as the original return.                                      you amend your U.S. Form 1065 and receive federal finalization on 
If you are filing Form IL-1065-X to change the election on your         October 22, 2024, then you must submit one Form IL-1065-X for the 
original return to treat all income other than compensation as          July 10, 2024, adjustments and a separate Form IL-1065-X for the 
business income, check the box in Step 1, Line F, and provide a         October 22, 2024, adjustments. Failure to file separate amended 
written explanation indicating the change to your election in the       returns for each federal finalization date may result in the denial of 
“Explain the changes on this return” area of your Form IL-1065-X.       the entire claim, a delay in processing, or the assessment of penalty 
                                                                        and interest. 
How long do I have to amend my return?
The amount of time you have to amend your return depends on                 Proof of federal finalization must be attached to your 
whether your Form IL-1065-X is being filed to report a state or federal amended return before the return will be processed.
change.
                                                                        What if my amended return involves unitary 
        If an amended return claiming a credit or refund is filed       filing?
within six months of the expiration of the statute of limitations, then If you are amending your original
the statute of limitations will automatically be extended an additional 
                                                                        • non-unitary Form IL-1065 to be included in an existing unitary 
six months for issuing an assessment of additional tax due.
                                                                          group and are required to file Schedule UB, Combined 
State change - If your change creates or increases the Illinois net       Apportionment for Unitary Business Group, you must file an 
loss for the year, you must file Form IL-1065-X showing the increase      amended Form IL-1065-X, following the line by line instructions 
in order to carry the increased loss amount to another year.              provided for Form IL-1065 and Illinois Schedule UB, for the tax 
If your change decreases the tax due to Illinois and you are entitled     year you are amending. In addition,
to a refund or credit carryforward, you must file Form IL-1065-X          —  any combined return filed by the combined group on 
within                                                                      Form IL-1120 must also be amended to include your 
•   three years after the due date of the return (including                 information, and 
  extensions),                                                            —  each member that filed a separate unitary return must file an 
• three years after the date your original return was filed, or             amended return to include your information.
• one year after the date your Illinois tax was paid, whichever is 
                                                                        • unitary Form IL-1065 to report a state or federal change to 
  latest.
                                                                          your unitary income and are required to file Schedule UB, any 
If your change increases the tax due to Illinois, you should file         combined return filed by the group or separate unitary return 
Form IL-1065-X and pay the tax, penalty, and interest promptly.           may also need to be amended.
Federal change - Do not file this amended return until you 
receive a federal finalization notification from the IRS stating that   What if my amended return involves an Illinois 
they have accepted your change, either by paying a refund, or by        net loss deduction (NLD)?
final assessment, agreement, or judgment. In order to process an        If you have an Illinois NLD carryover from any loss year ending on 
amended return due to a federal change, the Illinois Department         or after December 31, 1986, it is subtracted from and limited to base 
of Revenue (IDOR) requires proof of federal finalization. Proof of      income allocable to Illinois.
federal finalization includes one or more of the following:             To determine your “Illinois net loss” start with your total unmodified 
• a copy of your federal audit report (signed and dated by a            base income and apply all addition and subtraction modifications, 
  federal auditor);                                                     and all allocation and apportionment provisions.
• an IRS account transcript; or
• a federal refund check.
IL-1065-X Instructions (R-04/24)      Printed by the authority of the state of Illinois - electronic only - one copy.                Page 1 of 6

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If you are carrying an Illinois NLD, you must complete and attach For amended tax returns filed on or after
Illinois Schedule NLD, Illinois Net Loss Deduction, and claim the January 1, 2024, a late payment penalty will be assessed for any
deduction on Step 7, Line 48. See Specific Instructions for Step 7, amended return not filed and the resulting liability not paid within
Line 48. 120 days of the federal change. See 35 ILCS 735/3-3(b-25) for more
Do not file Form IL-1065-X to report an Illinois NLD carryforward until information.
after you have filed the loss year Form IL-1065, Form IL-1065-X,
or Form IL-843 (for tax years ending prior to December 31, 2006) What must I attach to my Form IL-1065-X?
reporting the loss. When you file Form IL-1065-X, you must attach a This form must contain a complete explanation of the reasons
completed Illinois Schedule NLD. Failure to attach the correct and for filing the claim or amendment. You must attach proof of the
completed schedule could result in partial or total denial of your federal finalization date and any schedules, forms, breakdowns,
claim. statements, or other documentation required to support your claim. If
If you need more information, visit our website at tax.illinois.gov Form IL-1065-X is submitted without the proper attachments, it may
and see the Schedule NLD instructions, or 86 Ill. Adm Code Sections be partially or totally denied.
100.2050 and 100.2300 through 100.2330. Examples of federal finalization include a copy of one or more of the
Who should sign the return? following items:
Your Form IL-1065-X must be signed by a partner or any other officer • your audit report from the IRS
duly authorized to sign the return. In the case of a bankruptcy, a • your federal record of account verifying your ordinary business
receiver, trustee, or assignee must sign any return required to be income
filed on behalf of the partnership. If you are filing Form IL-1065-X because
If you are operating as a business organized under • you filed an amended federal return and your tax due to Illinois
the Lloyd’s plan of operation, an officer of that plan must sign decreases, you must attach proof of the federal finalization
Form IL-1065-X. date, a copy of that federal return, plus any other related forms,
Any person paid to prepare the return (other than a regular, full-time schedules, or attachments, including a signed and dated copy
employee of the taxpayer, such as a clerk, secretary, or bookkeeper) of any federal report of income tax examination changes, if
must provide a signature, date the return, enter the preparer tax applicable.
identification number (PTIN) issued to them by the Internal Revenue • you filed an amended federal return and your tax due to Illinois
Service, and provide their firm’s name, federal employer identification increases, you must attach proof of the federal finalization
number (FEIN), address, and phone number. date, including a signed and dated copy of any federal report
of income tax examination changes, if applicable, showing
Can a reasonable facsimile be used? the change was reported to Illinois within 120 days of IRS
In general, you must obtain and use forms prescribed by IDOR. acceptance, or you may be assessed a late-payment penalty.
Separate statements not on forms provided or approved by • of a change by the IRS, you must include all copies of the
IDOR will not be accepted and you will be asked for appropriate federal examining officer’s reports, including preliminary, revised,
documentation. Failure to comply with this requirement may corrected, and superseding reports, and a signed and dated
result in failure to file penalties, a delay in the processing of copy of any federal report of income tax examination changes, if
your return, or a delay in the generation of any overpayment. applicable.
Additionally, failure to submit appropriate documentation when
requested may result in a referral to our Audit Bureau for compliance • you copied information incorrectly from your U.S. Form 1065
action. onto your Form IL-1065, you must include a copy of your U.S.
Form 1065.
Partnerships must complete Form IL-1065-X. Do not send a
computer printout with line numbers and dollar amounts attached • of a change in, or audit of, another state’s tax return, you
to a blank copy of the return. Computer generated printouts are must include a copy of the other state’s corrected return or the
not acceptable, even if they are in the same format as IDOR forms. examining officer’s reports.
Computer generated forms from an IDOR-approved software • of a change in the information reported on your Schedule B,
developer are acceptable. Partners’ or Shareholders’ Information, you must include a
corrected Illinois Schedule B.
What are the penalties and interest? • of changes reported on a revised Schedule K-1-P, Partner’s
Penalties — You will owe or Shareholder’s Share of Income, Deductions, Credits, and
• a late-filing penalty if you do not file a processable return by the Recapture, or K-1-T, Beneficiary’s Share of Income and
extended due date; Deductions, (or any equivalent document) you received, you
• a late-payment penalty if you do not pay the tax you owe by the must include a copy of the revised Schedule(s) K-1-P or K-1-T
original due date of the return; (or equivalent document). Do not attach copies of Schedule(s)
• a late-payment penalty for underpayment of estimated tax if K-1-P you issued and which lists your name and FEIN in Step 1
you were required to make estimated tax payments and failed to of Schedule K-1-P.
do so, or failed to pay the required amount by the payment due • of changes, other than those described above, see Form IL-1065
date; Instructions and any schedules for the year you are changing to
determine what attachments you must provide.
• a bad check penalty if your remittance is not honored by your
financial institution; Should I round?
• a cost of collection fee if you do not pay the amount you owe You must round the dollar amounts on Form IL-1065-X to whole-dollar
within 30 days of the date printed on your bill. amounts. To do this, you should drop any amount less than 50 cents
Interest — The interest rate is the federal underpayment rate, which and increase any amount of 50 cents or more to the next higher
is set by the IRS under Internal Revenue Code (IRC) Section 6621. dollar.
For more information about penalties and interest, see
Publication 103, Penalties and Interest for Illinois Taxes.
IL-1065-X Instructions (R-04/24) Page 2 of 6

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Where should I file?                                                     What if I need additional assistance or forms?
Mail your Form IL-1065-X to:                                             •  For assistance, forms, or schedules, visit 
ILLINOIS DEPARTMENT OF REVENUE                                              our website at tax.illinois.gov or scan the 
PO BOX 19016                                                                QR code provided.
SPRINGFIELD IL  62794-9016                                               •  Write us at: 
                                                                            ILLINOIS DEPARTMENT OF REVENUE
                                                                            PO BOX 19001
                                                                            SPRINGFIELD IL  62794-9001 
                                                                         •  Call 1 800 732-8866 or 217 782-3336 (TTY at 1 800 544-5304).
                                                                         •  Visit a taxpayer assistance office - 8:00 a.m. to 5:00 p.m. 
                                                                            (Springfield office) and 8:30 a.m. to 5:00 p.m. (all other offices), 
                                                                            Monday through Friday.

                                                 Specific Instructions
For instructions regarding completion of Steps 1 through 8, refer        J — Enter your North American Industry Classification System 
to the Form IL-1065 Instructions and schedules for the year being        (NAICS) Code. If you are unsure of your code, you can research the 
amended.                                                                 information at www.census.gov/naics/ or www.irs.gov. 
Specific instructions for most of the lines are included. If a specific  K — If you have completed federal Form 8886 or federal 
line is not referenced, follow the instructions on the form.             Schedule M-3, Part II, Line 10, to report a tax shelter and you did 
Enter the tax year you are amending in the space provided at the top     not attach a copy to the original return, check the appropriate box 
of Form IL-1065-X.                                                       and attach a copy of the federal form or schedule to this return. If 
                                                                         you are filing this return because of changes associated with federal 
Step 1: Identify your partnership                                        Form 8886 or federal Schedule M-3, Part II, Line 10, provide a 
A — Type or print your legal business name. If you have a name           detailed explanation in the “Explain the changes on this return” area 
change from your original return, check the corresponding box.           of your Form IL-1065-X. 
B — Type or print your mailing address.                                  L — You must check the box and attach Form IL-4562, Special 
C — Check the box if you are filing this form only to report an          Depreciation, if you are claiming special depreciation addition or 
increased net loss, you have no surcharge for sale of assets by gaming   subtraction modifications on Form IL-1065-X, even if the amounts are 
licensee and no pass-through withholding payments to report on           not changing from your original return.
behalf of your members on your original or amended return, and           M — You must check the box and attach Schedule M, Other 
no overpayment will result. Complete Steps 2 through 5, Step 6, if       Additions and Subtractions (for businesses), if you are claiming other 
applicable, and Step 7, Line 47. Sign the return in Step 10 and leave    addition or subtraction modifications on Form IL-1065-X, even if the 
the rest of the form blank.                                              amounts are not changing from your original return.
D — Check the appropriate box if you are an investment partnership       N — You must check the box and attach Schedule 80/20, 
or publicly-traded partnership. Otherwise, leave this line blank.        Related-Party Expenses, if you are claiming related-party expenses 
E — Check the appropriate box for the reason you are filing              modifications on your Form IL-1065-X, even if the amounts are not 
this return. If you are amending due to a federal change, you must       changing from your original return.
check the appropriate box for partial agreed or finalized, and include   O — Check the box if you are claiming deductions or credits listed 
the date of IRS finalization, which might not be the date the federal    on Illinois Schedule 1299-A,Tax Subtractions and Credits (for 
amended return was filed. Please attach a dated copy of any federal      partnerships and S corporations). You must check the box and 
examining officer’s report. If you do not provide this date or the       attach Illinois Schedule 1299-A and any other required support listed 
required attachments, you may be assessed penalties and interest.        on Schedule 1299-A to your tax return to support any deductions or 
F — If you are filing Form IL-1065-X before the extended due             credits you are claiming or passing to your shareholders.
date, and wish to make the election to treat all income, other than      P — If your business activity is protected under Public Law 
compensation, as business income for this tax year, check this box.      86-272, check this box and complete Steps 1 through 7 of the Form 
If you previously had nonbusiness income on Form IL-1065, Step 5,        IL-1065-X.
Lines 36 and 44, you must reduce these amounts to zero on this           Q — Check this box if you are filing this amended return to report 
Form IL-1065-X. This election must be made by the extended due           changes to your Illinois sales factor numerator due to the inclusion or 
date of the original tax return. Once made, the election is irrevocable. exclusion of throwback sales.
If you are filing Form IL-1065-X after the extended due date of the      R — Check this box if you are filing this amended return to report 
original return and did not make the election on your most recent        changes to your Illinois sales factor numerator due to the inclusion or 
return filed before the extended due date, you cannot check this box.    exclusion of double throwback sales.
G — Check this box if you elect to pay PTE tax in an amount equal        S — If you are attaching Subgroup Schedule to your Schedule UB, 
to 4.95 percent (.0495) of the taxpayer’s calculated net income for      Combined Apportionment for Unitary Business Group check the box. 
the tax year on Line 61.                                                 See Subgroup Schedule Instructions and Schedule UB Instructions 
H — Enter your entire federal employer identification number (FEIN).     for more information.
I — If you are a member of a unitary business group and are              T — Check this box if you are a 52/53 week filer. A 52/53 week 
included on Schedule UB, Combined Apportionment for Unitary              filer is a fiscal filer with a tax year that varies from 52 to 53 weeks 
Business Group, check the box. Enter the entire FEIN of the member       because their tax year ends on the same day of the week instead 
who prepared the Illinois Schedule UB and attach the Schedule UB         of the last day of the month. 
to this return.
IL-1065-X Instructions (R-04/24)                                                                                                     Page 3 of 6

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U — Check this box if you are paying Pass-through Entity (PTE) Line 35 — This is your base income or loss.
Tax and you annualized your income on Form IL-2220. Attach Column A — Enter the amounts from your most recently filed or
Form IL-2220. adjusted return. Do not check a box on Lines A or B to indicate
how your income was reported on your most recently filed or
Explain the changes on this return adjusted return. The check boxes on Lines A and B are used when
The purpose of this area is to allow you to explain what specific reporting your amended base income or loss in column B.
changes you are making to your Illinois tax return. You should Column B — Follow the instructions on the form and check the
include all relevant information, including, but not limited to, changes box on Line A or B that applies to the amount in Column B. You must
made to check one of these boxes and follow the instructions for that line
• specific addition and subtraction modifications, when completing Column B.
• unitary membership or unitary status, Check the box on Line A if
• the business income election, • all of your base income or loss is derived inside Illinois; and
• credit or credit recapture amounts, • you do not have any income or loss to report on Lines 36, 37,
• the Illinois net operating loss deduction, and 44, or 45.
• the federal or other state return that caused changes to the If you check the box on Line A, do not complete Step 6,
Illinois return. Column B. All of your amended base income or loss is allocable
You must provide an explanation for each line item you change. to Illinois. Skip Step 6, Column B, enter the amount from Step 7,
Column B, Line 35 on Step 7, Column B, Line 47, and complete the
If your changes generate an overpayment which you elect to receive
remainder of the return.
as a credit carryforward and you elect to apply that credit to a tax
year other than the year described in the Line 70 instructions, you Check the box on Line B if any of the following apply:
must follow the instructions found under “May I apply my credit to a • your base income or loss is derived inside and outside Illinois;
different tax year?” If you fail to include the required information in • all of your base income or loss is derived outside Illinois; or
your explanation, your election will be considered invalid and we will • you have income or loss to report on Lines 36, 37, 44, or 45.
not apply your credit as you requested. If you check the box on Line B, you must complete all lines of
General Information for Steps 3 through 9 Step 6, Column B. Submitting Form IL-1065-X with an incomplete
Column A — Enter the amounts from your most recently filed or Step 6, Column B, including Lines 40, 41, and 42 may result in a
adjusted return for the year that you are amending. These may be delay in processing your return, further correspondence, and you
figures from your original Form IL-1065 or a previously amended or may be required to submit further information to support your filing.
audited return. See the Specific Instructions for Step 6 for more information.
Unitary filers who are required to file a Schedule UB -
Column B — Enter the correct amount for each line in Column B. You must complete both Step 4 of the Schedule UB and Step 6,
For each line item you change, you must provide an explanation in Column B of the Form IL-1065-X.
the “Explain the changes of this return” area of your Form IL-1065-X.
If you are filing this form only to report an increase in your Step 6: Figure your income allocable to Illinois
Illinois net loss, you have no surcharge for sale of assets by gaming Complete Step 6 only if you originally completed this step, or if
licensee, no pass-through withholding payments to report on behalf you need to make a change that affects your base income or
of your members on your original or amended return, and the loss allocable to Illinois. Refer to Form IL-1065, Step 6, Specific
change will not result in an overpayment, see the instructions for Instructions, for the year being amended.
Step 7, Line 47. You must check the box on Line B and complete Step 6 if any
portion of Step 5, Column B, Line 35, base income or loss, is
Steps 2 and 3: Figure your ordinary income or
derived outside Illinois, or you have any income or loss to report on
loss and Figure your unmodified base income Column B, Lines 36, 37, 44, or 45.
or loss If you do not complete all of Step 6, Column B, Lines 36 through 46,
If you are a member of a unitary group see “What if I am a we may issue a notice and demand proposing 100 percent of income
member of a unitary group?“ in the Form IL-1065 instructions. as being allocated to Illinois, or in the case of a loss return, a notice
Lines 1 through 13 — Refer to your Form IL-1065, indicating none of your loss as being allocated to Illinois.
Steps 2 and 3, Specific Instructions, for the year being amended. Lines 36 and 44 — If you elected to treat all of your income other
Do not apply your Illinois net loss deduction amount in this than compensation as business income on your original tax return,
step. Net Loss Deductions are reported on Step 7, Line 48. you must follow that election by entering zero on Form IL-1065-X,
Lines 36 and 44. If you are filing Form IL-1065-X before the extended
Steps 4 and 5: Figure your income or loss and due date and are making the election to treat all nonbusiness income
Figure your base income or loss as business income, Column B, Lines 36 and 44 should be reduced
If you are a member of a unitary group see “What if I am a to zero.

member of a unitary group?“ in the Form IL-1065 instructions. Step 7: Figure your net income
Lines 15 through 22 and Lines 24 through 33 — List each Line 47 — Follow the instructions on the form. If the amount in
item and the amount on the line provided. You must identify all Column A reflects income and the corrected amount in Column B
subtractions and attach all of the required supporting documentation. reflects a loss, you may be able to carry this loss to other years as an
If you need to make a correction to Line 21 or Line 27, Illinois NLD. See the instructions for Illinois Schedule NLD for more
use the worksheet located in the Schedule B Instructions of the information.
Form IL-1065 Instructions to figure the correct amounts. You
must attach a corrected Illinois Schedule B if there is a change
in the information reported on your most recently filed Illinois
Schedule B.

IL-1065-X Instructions (R-04/24) Page 4 of 6

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If you are filing this form only to report an increase in your Line 60 — Complete this line if you elected to pay PTE tax on your
Illinois net loss, you have no surcharge for sale of assets by gaming calculated base income. The total amount of PTE credit allocated
licensee, no pass-through withholding payments to report on behalf to partners cannot exceed the PTE liability reported and actually
of your members on your original or amended return, and the change paid by the partnership. Follow the instructions on the PTE Income
will not result in an overpayment, check the box in Step 1, Line C, Worksheet in the Form IL-1065 Instructions.
complete Steps 2 through 5, Step 6, if applicable, and Step 7, You must also issue revised Schedule(s) K-1-P to
Line 47. Complete the “Explain the changes on this return” area of your partners if any amounts reported to them on the original
your Form IL-1065-X stating what caused the increase in the Illinois Schedule(s) K-1-P you issued have changed. Mark the top of the
net loss and sign the return in Step 10. Leave the rest of the form revised Schedule(s) K-1-P you issue as “Revised.”
blank. Line 61 — Do not include any PTE tax credit you received on
Line 48 — Enter your Illinois NLD from the Illinois Schedule NLD, Schedule(s) K-1-P or K-1-T on this line. If you complete Line 61, then
Step 1, Line 7 total box. Attach Illinois Schedule NLD to your Line 59a should be blank.
Form IL-1065-X.
Step 9: Figure your refund or balance due
Line 52 — The standard exemption is $1,000 multiplied by a
fraction in which the numerator is your base income allocable to If you are filing this form only to report an increase in your
Illinois and the denominator is your total base income. This figure Illinois net loss, you have no pass-through withholding payments to
cannot be greater than “$1,000.” The standard exemption is $0.00 if report on behalf of your members on your original or amended return,
your unmodified base income amount on Step 3, Line 13 is $250,000 and an overpayment will not result, do not complete this step.
or more. Line 63a — Enter the sum of any overpayment from your prior
If you have a change in your tax year end, and the result is a tax year tax returns that you requested to be applied to this year’s tax
period of less than 12 months, the standard exemption is prorated return. Take into account any correspondence we may have sent
based on the number of days in the short tax year. However, if this is you that changed the amount of your credit carryforward from the
your first or final return, you are allowed to use the full-year standard previous year.
exemption even if it is a short tax year. Line 63b — Enter the sum of the following, not including any
Line 53 — If Line 49 is a loss, enter the amount from Line 49 on penalty and interest previously paid:
Line 53. Do not increase your loss by the exemption allowance on • estimated payments or tax prepayments made during the tax
Line 52. year,
• extension payments,
Step 8: Figure the taxes and pass-through • any tax payments you made with a previously filed
withholding you owe Form IL-1065-X, and
Follow the instructions on the form. Be sure to attach any required • any other payments made prior to the date this amended return
schedules or forms. is filed (e.g., responding to a bill).
Line 55 — See Illinois Schedule 4255, Recapture of Investment Line 63c — Enter the amount you wish to claim of Illinois
Tax Credits, for more information. You must attach Illinois pass-through withholding (including any eligible investment
Schedule 4255 if you have an amount on this line. partnership withholding) payments reported to you by partnerships,
Line 57 — See Form IL-477, Replacement Tax Investment Credits, S corporations, or trusts, on Schedule(s) K-1-P or K-1-T. If you
for more information. You must attach Form IL-477 and any other received more than one Schedule K-1-P or K-1-T, add the amounts
required support listed on Form IL-477 if you have an amount on this you wish to claim from all the schedules and enter the total here.
line. Attach copies of the Schedules K-1-P and K-1-T you received
Line 59a — For partnerships other than those that qualify as from the pass-through entities to your Form IL-1065-X. See
“investment partnerships” as defined in the IITA Section 1501(a) “Definitions to help you complete your Form IL-1065” in the Form
(11.5)(A-5). Complete all sections of Illinois Schedule B and enter IL-1065 instructions for more information.
the amount from Illinois Schedule B, Section A, Line 5 on this line. Partners in an investment partnership may not be eligible to
This is the amount of pass-through withholding payments you owe claim a Schedule K-1-P, Step 7, Line 55 amount reported to them by
on behalf of your members. You must attach a corrected Illinois the investment partnership. See Schedule K-1-P(2) for information
Schedule B if there is a change in the information reported on about when a partner may claim investment partnership withholding
your most recently filed Illinois Schedule B. See “Definitions credit.
to help you complete your Form IL-1065” in the Form IL-1065
instructions for more information. Do not include any pass-through withholding payments
you owe on behalf of your members on this line. Pass-through
Do not include on Line 59a any pass-through withholding withholding payments you owe on behalf of your members are
payments reported to you on Schedule(s) K-1-P or K-1-T. included on Step 8, Line 59a.
Pass-through withholding payment amounts reported to you are
included on Step 9, Line 63c. Line 63d — Enter the amount of any Illinois gambling and sports
wagering winnings withholding shown on Form(s) W-2G. Attach
You must also issue revised Schedule(s) K-1-P to Forms W-2G.
your partners if any amounts reported to them on the original
Schedule(s) K-1-P you issued have changed. Mark the top of the Line 65 — Enter previously paid penalty and interest. Obtain
revised Schedule(s) K-1-P you issue as “Revised.” this information from your MyTax Illinois account. Sign into
mytax.illinois.gov to view or register your account.
Line 59b — Investment partnerships only. Complete this line
if you are an investment partnership and are withholding for your Line 66 — Enter the total amount of any overpayment,
nonresident partners. Complete all sections of Illinois Schedule B credit carryforward, or refund (whether or not you received the
and enter the amount from Illinois Schedule B, Section A, Line 5 on overpayment) reported on your previously filed Form IL-1065 or
this line. See Form IL-1065 instructions for more information. Form IL-1065-X. Do not include any interest that you received.

IL-1065-X Instructions (R-04/24) Page 5 of 6

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Line 70 — Enter the amount of overpayment you elect to be                 Step 10:  Signature, date, and paid preparer’s 
credited forward. Check the box on this line if this is your final return 
and any remaining carryforward is being transferred to another            information
entity. Attach a detailed statement to your return listing the FEIN of    You must sign and date your return. If you do not sign your return, 
the entity receiving the credit carryforward, the date the credit was     it will not be considered filed and you may be subject to a nonfiler 
transferred, and the reason for the transfer.                             penalty.
See Form IL-1065, Step 9, Line 68 instructions for more information.      If you pay someone to prepare your return, the income tax return 
                                                                          preparer must also sign and date the return, enter the preparer tax 
Your credit carryforward will not be applied if you do not file a         identification number (PTIN) issued to them by the Internal Revenue 
processable return.                                                       Service, and provide their firm’s name, FEIN, address, and phone 
If your overpayment accrues interest and you elect to receive your        number. 
• entire overpayment as a credit carryforward, any interest due will      If you want to allow the paid preparer listed in this step to discuss 
  be applied with your credit as an additional credit carryforward.       this return with IDOR, check the box. This authorization will allow 
  We will calculate the amount of interest due and notify you.            your paid preparer to answer any questions that arise during the 
  When you claim your credit carryforward in a future year you            processing of your return, call us with questions about your return, 
  must include this interest amount in the amount claimed.                and receive or respond to notices we send. The authorization will 
• overpayment as both a credit carryforward and a refund, we will         automatically end no later than one year after you file your amended 
  apply the credit as you request and include any interest due with       return. You may revoke the authorization at any time by calling or 
  your refund.                                                            writing us.  
         Your credit carryforward may be reduced by us due to 
corrections we make to your return, or to satisfy any unpaid tax, 
penalty, and interest due for this year or any other year. If we reduce 
your credit carryforward, it may result in a late-payment penalty in a 
subsequent year.
May I apply my credit to a different tax year? 
Yes. If you wish to apply your credit to a tax year other than the one 
described above, you must indicate the tax year to which you wish to 
have the credit apply in the “Explain the changes on this return” area 
of your IL-1065-X.
If you do not follow these instructions, your election will be 
considered invalid and we will apply your credit as indicated under 
“To which tax year will my credit apply?” in the original return 
instructions.
If you submit a valid request, we will apply your credit as you 
requested and notify you. Once made, your election to change the 
tax year to which your credit will apply is irrevocable. 
         You may only apply your credit to tax years occurring after 
the year of the return creating the overpayment. If you request to 
apply more credit than our records show you have available, we 
will apply the maximum amount available and notify you of the 
difference.
Line 71 — Follow the instructions on the form. We will calculate any 
interest that may be due you and include it in your refund check. Any 
refund may be reduced to satisfy any outstanding liability.
We do not currently offer direct deposit as a method for receiving a 
refund from an amended return. Overpayments will be refunded by 
check.
Line 72 — Follow the instructions on the form. This is your amount 
of tax due that must be paid in full if $1 or more. We encourage you 
to let us figure your penalties and interest and send you a bill instead 
of determining these amounts yourself. We will compute any penalty 
and interest due and notify you. For more information see “What are 
the penalties and interest?” in these instructions and Publication 103.
         We will apply all payments against tax first, penalty second, 
and interest third.
If you have a balance due on Line 72, be sure to enter the amount 
you are paying on the top of Page 1 of the Form IL-1065-X.  
Complete a payment voucher, Form IL-1065-X-V, make your check 
or money order payable to “Illinois Department of Revenue”  , and 
attach them to the front of the return or file and pay electronically.

IL-1065-X Instructions (R-04/24)                                                                                                      Page 6 of 6

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