Hawaii paycheck calculator

The official method, step by step

• Pay is annualized, then reduced by the Form W-4 amount for your filing status ($8,600, or $12,900 if married filing jointly) unless the Step 2 box is checked.
• Federal income tax comes from the IRS 2026 Annual Percentage Method table for that status, divided back to one paycheck.
• Social security is 6.2% of wages until the year's wages reach $184,500.
• Medicare is 1.45% of all wages, plus 0.9% on wages over $200,000 in the year.
• A pre-tax 401(k) lowers federal income tax wages, not social security or Medicare wages.
• Hawaii income tax follows the annualized method in the 2026 withholding tables: annual pay less $1,144 for each HW-4 allowance and a $4,350 extra lump sum allowance, taxed from 1.4% to 7.9% on the single or married schedule, and divided over the pay periods.

What this leaves out

• HW-4 additional withholding (the pay stub generator handles it)
• Benefits, garnishments and other after-tax deductions
• W-4 Step 3 credits and Step 4 entries (the pay stub generator handles them)

Sources: Hawaii Department of Taxation, Appendix 2: Income Tax Withholding Tables for Tax Year 2026, Part 1 annualized method ($1,144 per HW-4 allowance, $4,350 extra lump sum allowance; 1.40% to 7.90%); IRS Publication 15-T (2026), Federal Income Tax Withholding Methods: Worksheet 1A and the Annual Percentage Method Tables; IRS Publication 15 (2026), (Circular E) Employer's Tax Guide: social security and Medicare tax, Additional Medicare Tax.