2026 official-source estimate
Estimate 2026 Hawaii income tax withholding from the official annualized tables and Form HW-4 elections, plus federal income tax and FICA.
Quick answer
Hawaii: Estimate 2026 Hawaii income tax withholding from the official annualized tables and Form HW-4 elections, plus federal income tax and FICA. This 2026 calculator combines that state treatment with federal withholding and FICA, while showing supported employee-paid programs and known exclusions explicitly.
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Included
Limitations
Enter gross pay for one pay period, federal W-4 adjustments, and the state details shown above. Federal withholding follows Publication 15-T. Hawaii annualizes the paycheck, subtracts $1,144 for each Form HW-4 allowance and the $4,350 extra lump-sum allowance, applies the official 2026 Single or Married annual schedule, and divides the result by the selected number of pay periods before adding Form HW-4 Line 5.
Example: The official Appendix 2 example uses $500 of weekly wages, Single status, and three allowances. Annual wages of $26,000 are reduced by $3,432 of regular allowances and the $4,350 lump-sum allowance; the resulting $497.99 annual tax becomes $9.58 of weekly Hawaii withholding. The calculator does not assume any unentered benefit deduction or invent a tax result.
Weekly, biweekly, semimonthly, and monthly are the supported paycheck frequencies. “Annual salary” is an earnings input and the annual view is a simple period multiplication; neither is an annual payroll-period method. The special Form W-4 adjustment for nonresident aliens is not modeled.
How does Hawaii paycheck withholding work? Hawaii uses a state Form HW-4 and 2026 withholding schedules that are separate from the federal Form W-4. Head of household uses the Single schedule for withholding, and Hawaii does not allow a general “exempt” election.
State paycheck questions
Federal withholding follows Publication 15-T. Hawaii annualizes the paycheck, subtracts $1,144 for each Form HW-4 allowance and the $4,350 extra lump-sum allowance, applies the official 2026 Single or Married annual schedule, and divides the result by the selected number of pay periods before adding Form HW-4 Line 5.
Included in this estimate: Federal income tax withholding; Social Security and Medicare; 2026 Hawaii annualized withholding schedules; Form HW-4 status, allowances, and additional withholding; Certified-disabled not-subject status when it is actually on file.
Not included in this estimate: Nonresident and military-spouse wage-sourcing exceptions; Supplemental-wage and bonus withholding methods; Unentered employer benefits and unsupported deduction treatments; Eligibility advice for certified-disabled status.
Source trail
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