Alaska Tax Tables
Alaska Tax Tables provide a complete reference of how state income tax is calculated for each supported year. These tables summarise the official rules issued by the Alaska Department of Revenue and present them in a clear structure that matches the calculations used in our Alaska Tax Calculator. They are useful for checking withholdings, estimating liability, reviewing historical tax years and understanding how state policy shapes taxable income.
Quick Access Tools
Tax Years
Select a tax year to view the official Alaska tax rates and rules used in our calculators. Each page shows the brackets or flat tax rate, deduction amounts, credit structures, withholding guidance and any year-specific updates published by the Alaska Department of Revenue. You can also access the matching Alaska Tax Calculator for precise calculations for that year.
How Alaska Calculates Income Tax
Alaska uses a progressive tax system where income is divided into brackets and each portion is taxed at its marginal rate. These rules determine how wages and other taxable income are assessed for Alaska returns, with updated tables released each year to reflect legislation and inflation changes. For a broader explanation of how tax tables work, see our Tax Tables guide.
What Is Contained in the Alaska Tax Tables?
Each tax-year page provides a structured summary of the components Alaska uses to calculate individual income tax. While details vary by year, the state tax tables generally include the following elements:
- Retirement income rules including partial or full exemptions for pensions or Social Security.
Together, these elements provide a transparent breakdown of how Alaska calculates tax for each year. This structure helps taxpayers review year-to-year changes, employers validate payroll withholding and financial planners analyse how Alaska’s rules differ from federal requirements. All values shown in our Alaska Tax Tables match the official figures published by the state.
Frequently Asked Questions
What apportionment formula does Form 6000 use, and how is Alaska-source income calculated?
Alaska uses an apportionment system to ensure corporations pay tax only on income attributable to the state. Most industries follow the traditional three-factor formula—property, payroll and sales—with a sales-factor emphasis depending on the industry. Oil and gas corporations use a special apportionment method reflecting pipeline transportation and production values. Apportionment requires corporations to track total everywhere-income and Alaska-specific income, then compute an Alaska apportionment percentage. That percentage is applied to federal taxable income (after Alaska-specific modifications) to determine Alaska-source income reported on Form 6000.
How does Alaska determine whether estimated payments were sufficient?
Alaska follows a safe-harbor system similar to federal rules but applied to state corporate tax. Corporations must pay the lesser of: (1) 100% of the prior year’s Alaska tax liability (if a full 12-month return existed), or (2) 80% of the current year’s expected tax liability. If payments fall below these levels for any installment period, the corporation is considered underpaid. Form 6220 evaluates each quarter independently, meaning a single late or underfunded payment can trigger penalties even if later installments are correct.
Why does my paycheck still show federal withholding even though Alaska has no tax?
Federal income tax applies in all U.S. states, including those with no state income tax. Alaska eliminates only the state layer, not federal obligations. Your employer must still calculate federal withholding using your W-4 selections, taxable wages, pay frequency and benefit deductions. Many new residents mistakenly assume federal withholding disappears when they move to a no-income-tax state, but the federal system operates entirely independently of state-level rules.
Are there special payroll rules for oil-field workers in Alaska?
Oil-field workers in Alaska are subject only to federal tax and FICA withholding. Alaska imposes no wages-based tax regardless of industry. That said, some oil-field employers may operate in multiple states, and travel-based taxation may apply when working outside Alaska. In those cases, the employee may owe nonresident tax to the other state. Within Alaska, however, no income tax applies, and payroll is handled entirely under federal rules.
If Alaska has no income tax, why do some employers still collect deductions from my paycheck?
Employer deductions shown on your paystub—such as health insurance premiums, retirement contributions, union dues or garnishments—are not state taxes. These amounts are typically pre-tax benefits, voluntary deductions, or federal payroll obligations. Alaska residents sometimes mistake employer-specific deductions for state withholding, but because Alaska does not levy income tax, any line item labeled generically as “withholding” or “tax” aside from Federal, Social Security and Medicare may simply be employer terminology or benefit-related. It’s always wise to review employer paystub codes if anything appears unclear.
Important Notes
All calculations are estimates for guidance only. Always review your return and consider professional advice when submitting official filings.