Alaska Quarterly Estimated Tax Calculator 2025-2026

Calculate your 1040-ES quarterly estimated tax payments for Alaska. Federal tax only—Alaska has no state income tax. Self-employed and gig workers: enter income, expenses, and withholding for instant quarterly amounts and due dates. Safe harbor option—free, no sign-up.

How to Use the Alaska Quarterly Tax Calculator

Enter income and withholding — Self-employment income, business expenses, W-2 wages, and federal withholding.
Choose safe harbor or actual — Safe harbor uses 100% (or 110% if high income) of prior-year tax to avoid underpayment penalties.
Get quarterly amounts — See federal and federal-only quarterly payments. Due dates: April 15, June 15, September 15, January 15.

Pair with our 1099 Tax Calculator for full self-employment tax estimates, or US Tax Calculator for take-home pay.

Quarterly Estimated Tax (1040-ES)

For self-employed and gig workers. Estimate federal and state quarterly payments.

Self-employment income

Business expenses

Other W-2 income

Withholding from W-2

Filing status

State

Use safe harbor (100% of prior year tax)

Tax year

Estimated tax to pay (annual)

$9,213

Per quarter (4 equal payments)

$2,303

Due dates

Q1: April 15, 2026
Q2: June 15, 2026
Q3: September 15, 2026
Q4: January 15, 2027

Quarterly Estimated Tax in Alaska

Alaska has no state income tax, so you only need to pay federal quarterly estimated tax (Form 1040-ES). Self-employed and gig workers in Alaska still owe federal income tax and self-employment tax (Social Security + Medicare) on net profit.

Who Must Pay Quarterly Estimated Taxes?

You generally must pay quarterly estimated taxes if you expect to owe $1,000 or more after withholding and credits. In Alaska, this applies to self-employed individuals, gig workers, partners, S-corp shareholders, and those with significant investment or rental income. Use the safe harbor rule (100% or 110% of prior-year tax in four equal payments) to avoid underpayment penalties.

Quarterly Tax Due Dates 2025–2026

Q1: April 15, 2025
Q2: June 15, 2025
Q3: September 15, 2025
Q4: January 15, 2026

If a due date falls on a weekend or holiday, it moves to the next business day. Farmers and fishermen have different rules—see IRS Publication 505.

Disclaimer: This calculator is for planning only. State rules vary. Consult IRS Publication 505, your state revenue department, or a tax professional for your situation. We do not provide tax advice.