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Alaska Corporation Net Income Tax Return Instructions

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Alaska Oil and Gas Corporation Net Income Tax Return - Form 6100 (2019)

For calendar year 2019 or the taxable year beginning , 2019, ending , 20____

EIN

NAICS Code

Contact Person

Name

Title

Mailing Address

Check if new address

Contact Email Address

City

State

Zip Code

Contact Telephone Number

Contact Fax Number

Return Information (check applicable boxes)

If amended return box above is checked, then check the following boxes, if applicable:

I declare, under penalty of perjury, that I have examined this return, including accompanying schedules and statements, and to the best of my knowledge and belief, it is true, correct, and complete. Declaration of preparer (other than taxpayer) is based on all information of which preparer has any knowledge.

Officer’s Signature

Date

Title

Preparer’s Signature

Date

Preparer Firm’s Name

Preparer’s SSN or PTIN

Preparer Firm’s Address

EIN

Phone

City

State

Zip Code

Schedule A – Net Income Tax Summary

1. Alaska income (loss) from Schedule G, line 11

2. Alaska net operating loss utilized: carryover ()

3. Alaska taxable income. Add lines 1–2

4. Alaska income tax from Schedule D, line 2

5. Other taxes from Schedule E, line 7

6. Total tax. Add lines 4–5

7. Alaska incentive credits applied against tax from Form 6300, line 49

8. Federal-based credits from Form 6390, line 33

9. Net Alaska income tax

10. Payments from Page 3, Schedule C

11. Alaska credit for prior year minimum tax

12. Alaska incentive credits claimed as refund from Form 6300, line 38

13. Tax due (overpaid)

14. Penalty for underpayment of estimated tax

15. Total amount due (overpaid)

16. Overpayment credited to 2020 estimated tax

17. Refund

Schedule B – Alaska Taxpayer Information

1. Alaska consolidated returns only: list all corporations with nexus in Alaska included in this return.

2. Common parent of federal consolidated group

EIN

Name

Address

City

State

Zip Code

3. First return / successor to previously existing business

EIN

Name

Address

City

State

Zip Code

4. Prior year return if different from page 1

EIN

Name

Reason

Schedule C – Tax Payment Record

Estimated Payments

First Date

First Amount

Second Date

Second Amount

Third Date

Third Amount

Fourth Date

Fourth Amount

Summary

Schedule D – Alaska Tax Computation

1. Alaska taxable income from Schedule A, line 3

2. Tax

Schedule E – Other Taxes

1. Base Erosion and Anti-Abuse Tax (BEAT)

2. Apportionment factor

3. Multiply line 1 by line 2

4. Personal Holding Company tax

5. Tax on early cessation of operations – LNG storage facility

6. Other taxes

7. Add lines 3–6

Schedule G – Computation of Alaska Income

1. Federal taxable income (loss)

2e. Total adjustments for combined reporting

3j. Total additions

4. Total

5k. Total subtractions

6. Apportionable business income (loss)

7. Apportionment factor

8. Income apportioned to Alaska

9. Non-business income (loss) net of expenses allocable to Alaska

10a. Alaska capital and Section 1231 gain (loss)

10b. Alaska charitable contribution deduction

10c. Alaska dividends-received deduction

11. Alaska taxable income (loss) before net operating loss

Schedule I – Apportionment Factor

Schedule J – Alaska Capital and Section 1231 Gains and Losses

1. Current Section 1231 gains and (losses)

2. Alaska net non-recaptured Section 1231 losses from prior years

3. If line 1C is a gain, subtract line 2 from line 1C

4. If line 1C is a gain, lesser of line 1C or line 2

5. Total current STCG/(L)

9. Alaska capital loss carryover utilized / carryback utilized

20. Add lines 17–19

Schedule K – Charitable Contribution Deduction

1. Current charitable contributions

2. Education credit contributions

3. Subtract line 2 from line 1

4. Apportionment factor

5. Current Alaska charitable contributions

6. Alaska charitable contribution carryover

7. Add lines 5–6

8. Taxable income for deduction limitation purposes

9. Multiply line 8 by 10%

10. Alaska charitable contribution deduction

Schedule L – Alaska Dividends-Received Deduction (DRD)

1. Dividend income included in combined income

2a. Intercompany dividends

2b. Section 78 gross-up dividends

2c. Dividends subtracted as non-business income

2d. Total dividends not eligible for DRD

3. Total dividends eligible for DRD

4. Apportionment factor

5. Apportioned dividends

6. Dividends allocable to Alaska

7. Total dividends included in taxable income

8a. Dividends qualifying for 100% deduction

8b. Dividends qualifying for 65% deduction

8c. Dividends qualifying for 50% deduction

8d. Dividends qualifying for 26.7% deduction

8e. Dividends qualifying for 23.3% deduction

8f. Other, if applicable

9. Tentative dividends-received deduction

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Overview of the Alaska Corporation Net Income Tax Return Instructions

The Alaska Corporation Net Income Tax Return Instructions explain how incorporated businesses subject to Alaska corporate net income tax calculate taxable net income, complete the state return, and meet filing requirements. The instructions cover required schedules, adjustments to federal taxable income, allowable subtractions and credits, payment options, and documentation to attach. They also summarize filing formats accepted by the Alaska Department of Revenue, rules for fiscal-year filers, and procedures for amending previously filed returns. Use the instructions to reduce errors, support audit readiness, and confirm deadlines and payment calculations under state law.

Why these instructions matter for compliant filing

Accurate use of the instructions reduces errors that can trigger penalties, interest, or audits and clarifies required attachments and computations under Alaska tax law.

Why these instructions matter for compliant filing

Who typically prepares and reviews these instructions

Typical preparers include corporate tax managers, CPAs, and in-house accounting teams responsible for state tax compliance.

  • Corporate tax departments and controllers ensuring state-level return accuracy and payment reconciliation.
  • External CPAs and tax preparers preparing and signing returns on behalf of corporate filers.
  • In-house legal or tax counsel reviewing nexus, apportionment, and unusual adjustments for audit defensibility.

Reviewers often include controllers, tax counsel, and external accountants who verify computations, credits, and supporting schedules before filing.

Step-by-step completion process

Follow these four steps in order to prepare, verify, and submit the Alaska corporate net income tax return properly.

  • 01
    Assemble records: Gather federal return, schedules, and supporting documents.
  • 02
    Compute adjustments: Apply Alaska-specific additions and subtractions per instructions.
  • 03
    Complete forms: Fill the state return, schedules, and payment voucher accurately.
  • 04
    File and retain: Submit via accepted method and keep copies for retention period.

Digital workflow configuration for e-filing and review

Set up document and reviewer workflows so computations, attachments, and approvals move smoothly before submission.

Field Configuration
Document repository Secure cloud storage with versioning
Reviewer roles Assign preparer, reviewer, approver permissions
Approval routing Sequential approvals with email notifications
Audit logging Enable timestamped audit trails for changes

Where and how to submit the completed return

Know the accepted submission channels and required attachments before you file to avoid processing delays.

  • Alaska Department of Revenue: Primary recipient for state corporate returns.
  • Electronic filing: Use the Department's e-file portal if available.
  • Paper filing: Mail signed return and attachments to the address in instructions.
  • Payment methods: Pay by ACH, electronic funds transfer, or check as allowed.

Technical considerations for eSubmission and signatures

Ensure your signing and submission platform supports required formats and capture of audit data before e-submitting state tax returns.

  • File formats: PDF and XML accepted
  • Authentication: Email or stronger MFA
  • Audit trail: Timestamp and IP capture

Key filing timelines and extension options

Observe federal and state filing deadlines and any Alaska-specific due dates for calendar- and fiscal-year corporations.

Regular due date:

Due with federal corporate return; April 15 for calendar-year corporations

Extension filings:

File state extension to match federal extension deadlines

Estimated payments:

Quarterly estimates required to avoid underpayment penalties

Amended returns:

File promptly when corrections are necessary

Payment deadlines:

Payments due with the return unless extension permits otherwise

Filing milestones from preparation to confirmation

Track these sequential milestones to confirm the return is prepared, transmitted, and accepted by the state.

01

Prepare records

Complete computations and compile schedules before review.

02

Internal review

Tax and finance sign-off on numbers and attachments.

03

Transmit return

File electronically or mail the signed return.

04

Confirm acceptance

Obtain departmental acknowledgment or proof of mailing.

Common mistakes to avoid when preparing the state return

  • Using inconsistent entity names between federal and state filings, which can delay processing and require amendments.
  • Failing to apply Alaska-specific adjustments, causing understated tax or inaccurate credit claims that invite audits.
  • Omitting required supporting schedules or backup documentation that the Department of Revenue expects with the filed return.
  • Misreporting taxable period or using incorrect fiscal year dates, creating filing mismatches and potential penalty exposure.

Penalties and audit risks associated with incorrect returns

Late filing: Penalties plus interest
Late payment: Interest accrues on unpaid tax
Underpayment: Estimated payment penalties possible
Accuracy penalty: Civil penalties for incorrect returns
Audit risk: Increased examination likelihood
Civil fraud: Severe penalties if intentional

Required information and key fields at a glance

Entity Name: Registered corporate name
EIN: Employer Identification Number
Tax Year: Covered reporting period
Federal Income: Federal taxable income amount
Adjustments: State additions and subtractions
Signature: Authorized officer signature

Key components included in professional instructions

A complete instruction set organizes line-by-line guidance, schedules, payment options, and support contacts to aid accurate completion and filing.

Line-by-line guidance

Detailed explanations for each form line, including calculation steps, references to federal lines, and examples to illustrate complex adjustments.

Required schedules

Descriptions of schedules that must be attached, including apportionment schedules, credits, and supporting worksheets with sample completed pages.

Payment instructions

Accepted payment methods, estimated payment schedules, voucher completion, and information on ACH or electronic fund transfer procedures.

Amendments and corrections

Procedures for filing amended returns, deadlines for adjustments, and how to report carrybacks or carryforwards when applicable.

Penalty guidance

Summary of potential penalties and interest for late filing, underpayment, and accuracy issues, including references to state statutes where applicable.

Contact resources

Department contact numbers, mailing addresses, and guidance on when to consult a tax professional for complex or audit-related questions.

Real-world filing scenarios and how instructions apply

These short examples illustrate typical situations a filer may encounter and how the instructions help resolve them.

Single-state calendar-year corporation

A mid-size retail corporation with operations solely in Alaska follows instructions to reconcile federal taxable income to state net income

  • The company applies standard subtractions for tax-exempt federal interest
  • Using the instructions reduced follow-up requests from the revenue department and ensured timely acceptance with supporting schedules attached.

Multi-state apportionment case

A manufacturing corporation with sales in multiple states uses the apportionment schedule for proper allocation

  • The filer applies the statutory apportionment formula
  • Clear examples in the instructions guided calculation of the Alaska portion, avoiding double counting and minimizing audit adjustments.

Frequently asked questions and common resolution steps

Answers to typical questions about completing, signing, and submitting the Alaska corporate net income tax return, plus guidance on next steps if issues arise.


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