Alaska Form 6150 – Oil & Gas Corporation Net Income Tax Return

Last reviewed: 2025-11-12

Use the Alaska Tax Form Calculator Form alaska: Alaska Form 6150 – Oil & Gas Corporation Net Income Tax Return as a stand alone tax form calculator to quickly calculate specific amounts for your 2026 Alaska state tax return. Alternatively, you can use one of our Combined Federal and State Tax Estimators to quickly calculate your salary, tax, and take-home pay.

Alaska Form 6150 is the state’s primary income tax return for oil and gas corporations operating in Alaska. The form applies to C-corporations engaged in oil and gas production, pipeline transportation or upstream/downstream activities that generate taxable income attributable to Alaska. Because the oil and gas sector has unique tax rules, Form 6150 integrates several specialized schedules, including Schedule F (Alaska Income), Schedule D (Tax Computation), Schedule E (Other Taxes), and Schedule 6300 (Credits).

This calculator mirrors the computational structure of the official 6150 and focuses on the numerical elements only. Corporate identity sections, disclosures, elections and attachments are not included and must be completed on the final state-filed copy. The core goal is to automate computation of taxable income, tax liability, credits applied and final payment or refund.

How to Complete Alaska Form 6150

Use the following guidance to complete the computational lines of Form 6150:

Report Alaska income (Line 1): Enter the Alaska-apportioned income from Schedule F, line 4. This represents income attributable specifically to Alaska under the state’s apportionment rules.
Apply Alaska NOL carryforward (Line 2): If your corporation has unused Alaska NOLs from prior years, enter the amount utilized for the current year. Attach the NOL schedule as required.
Compute taxable income (Line 3): The calculator automatically adds lines 1 and 2.
Enter tax from Schedule D (Line 4): Alaska’s corporate tax for oil and gas businesses is computed using Schedule D. Input the total tax due from that schedule.
Include other taxes (Line 5): Certain oil and gas activities may trigger additional business-specific taxes reported on Schedule E.
Total tax (Line 6): Automatically computed as the sum of lines 4 and 5.
Credits (Lines 7–8): Alaska offers a range of incentive and federal-based credits for oil and gas exploration, development and investment. Enter Schedule 6300 credits and Form 6390 credits.
Net tax (Line 9): Computed automatically by subtracting credits from total tax.
Payments (Line 10): Include estimated tax payments, extension payments and prior-year overpayment credits.
Balance due or refund (Line 11): Automatically computed based on net tax minus payments.

Corporations must attach all supporting schedules, apportionment worksheets and credit certificates when filing their official state return. This calculator provides the numerical framework only.

Alaska Form 6150 — Oil & Gas Corporation Net Income Tax Return
1	Alaska income (loss) from Schedule F, line 4
2	Alaska net operating loss utilized (carryover) – attach schedule
3	Alaska taxable income (loss) before credits. 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	Incentive credits applied against tax (Schedule 6300, line 49)
8	Federal-based credits (Form 6390, line 33)
9	Net Alaska income tax. Subtract lines 7 & 8 from line 6
10	Payments: total estimated tax payments, extension payment, overpayment credited, etc.
11	Balance due (or overpayment) (line 9 minus line 10)

Alaska Oil & Gas Corporation Tax Overview

Oil and gas corporations are subject to Alaska corporate income tax due to substantial economic activity in the state, including exploration, production, pipeline transport and refinement. Alaska uses a combination of industry-specific rules and standard corporate tax provisions, requiring corporations to file specialized schedules that reflect the unique nature of the sector’s production and cost structure.

Form 6150 also interacts with Alaska’s extensive credit system, which includes exploration and development incentives, investment credits, LNG facility credits and various federal-based credits that reduce overall tax liability. Because credits may be limited, carried forward or subject to certification, corporations should rely on accurate documentation and supporting certificates.

The state emphasizes accurate apportionment to ensure that only activity attributable to Alaska is taxed. Corporations operating across states or internationally must maintain detailed apportionment records and ensure that Schedule F is completed correctly, as it forms the basis of taxable income on Form 6150.

Last reviewed: 2025-11-12: If you believe this form requires an update, please contact us.

Additional Resources

Form 6150 plays a central role in the compliance requirements for oil and gas corporations operating in Alaska. Completing it accurately ensures proper calculation of tax liability, correct application of credits and clear alignment with state apportionment rules. Always consult the latest instructions from the Alaska Department of Revenue and maintain copies of all supporting schedules and certificates.

Quick Access Tools

Frequently Asked Questions

Are Alaska unemployment taxes included?

Employer-paid unemployment contributions exist in Alaska, but employees do not have unemployment tax withheld from their paycheck. Alaska operates a unique unemployment insurance system where both the employer and employee may contribute depending on current rate schedules, but employee deductions—if required for a given year—are typically small. Some years the employee rate is 0%. These contributions are not income taxes and do not affect your federal taxable wages.

How can I model long-term savings growth due to Alaska’s 0% income tax?

Because Alaska does not reduce your paycheck through wage-based taxes, the money you save can be invested or contributed to retirement accounts to compound over time. Tools like the Compound Interest Calculator and CAGR Calculator let you project how much faster savings grow when you retain more of your income. Even a modest annual investment of your “tax savings” can build significant wealth due to compounding over many years.

Are there any Alaska-specific rules for claiming dependents on my federal return?

No. Alaska does not maintain a state tax system, so it does not impose additional dependency tests, household requirements, documentation layers, or residency proofs. All federal dependency rules apply normally, including support tests, relationship tests, residency requirements and income limits. The lack of state-level additions makes dependency filing simpler for Alaska households than in most states.

Where can I access the reference page or tool for Form 6100?

A complete overview of the form, instructions and structured calculator logic is available at Alaska Form 6100 Calculator. This provides item-by-item explanations, relevant schedules and state-level guidance for S corporations.

Are there any Alaska state withholdings?

No standard payroll withholdings exist because Alaska does not impose a personal income tax. Employers do not submit state withholding accounts, state returns, or state payroll forms similar to W-4. The only exceptions relate to employer-funded programs such as unemployment insurance, but these do not appear as employee deductions on your paycheck. In most cases your wage slip will include only federal withholding, FICA, Medicare, and any voluntary deductions like health insurance or retirement contributions.

Important Notes

All calculations are estimates for guidance only. Always review your return and consider professional advice when submitting official filings.