Tax Compass2025 Tax Estimate — Single, Full-Year Hawaii Resident
This estimate covers tax year 2025. The supplied current date is October 19, 2026, so the original filing and payment deadlines have passed. Amounts below are estimates, not a tax return or professional tax advice.
Assumptions
You were single, under age 65, and a full-year Hawaii resident during 2025, with no dependents. Your $68,000 represents taxable W-2 wages, including the amount reported in federal Box 1. You have no other income, income adjustments, credits, estimated payments, or federal or Hawaii income tax withholding.
I assume you qualify for the standard deduction and have no special deductions for qualified tips, overtime, or other items. I cannot verify live IRS or Hawaii guidance in this session; the Hawaii calculation and deadline rules should be checked against the official 2025 instructions before filing.
Income and Federal Tax
Item Amount W-2 wages $68,000 Other income $0 Adjustments to income $0 Federal adjusted gross income (AGI) $68,000 2025 single standard deduction −$15,750 Federal taxable income $52,250
The $15,750 standard deduction reflects the increased amount applicable to 2025.
Federal bracket calculation:
• First $11,925 × 10% = $1,192.50 • Next $36,550 × 12% = $4,386.00 • Remaining $3,775 × 22% = $830.50
Total using the brackets: $6,409.00.
Because taxable income is below $100,000, the IRS tax table generally applies. The $52,250–$52,300 single-filer row produces approximately $6,415 in federal income tax. The balance estimate below uses that amount.
Credits: $0. Self-employment tax: $0, because the income is employee wages. Social Security and Medicare payroll taxes are separate from federal income tax withholding and are not added to this balance estimate.
Hawaii and Local Tax
Assuming Hawaii taxable wages equal federal taxable wages and no state adjustments apply:
Item Amount Hawaii adjusted gross income $68,000 Hawaii single standard deduction −$4,400 Personal exemption −$1,144 Estimated Hawaii taxable income $62,456
Using the 2025 Hawaii single-filer rate schedule:
• First $9,600 × 1.4% = $134.40 • Next $4,800 × 3.2% = $153.60 • Next $4,800 × 5.5% = $264.00 • Next $4,800 × 6.4% = $307.20 • Next $12,000 × 6.8% = $816.00 • Next $12,000 × 7.2% = $864.00 • Remaining $14,456 × 7.6% = $1,098.66
Estimated Hawaii income tax: $3,737.86, rounded to $3,738. Hawaii’s required tax-table lookup may change the final amount slightly.
Hawaii credits: $0 assumed, consistent with your information.
Local individual wage income tax: $0 assumed. Hawaii generally does not impose a county individual income tax on employee wages. I cannot independently verify current state or local rules here. Hawaii general excise tax is not applied to ordinary W-2 wages.
Estimated Balance Due
Federal Hawaii
Income tax $6,415 $3,738 Credits $0 $0 Income tax withholding $0 $0 Estimated payments $0 $0 Estimated unpaid tax $6,415 $3,738
Combined estimated balance due: $10,153, before penalties and interest.
No refund is expected under these assumptions. Actual return calculations may differ by a few dollars because of tax tables and rounding.
Penalties, Interest, and Deadlines
Federal: The original 2025 return and payment deadline was April 15, 2026. A valid filing extension generally moved the filing deadline to October 15, 2026, but did not extend the payment deadline. As of the supplied date, that extended deadline has also passed.
Hawaii: The original deadline was April 20, 2026. Hawaii generally provides an automatic six-month filing extension to October 20, 2026, subject to its conditions. It does not extend the payment deadline. Verify eligibility in the 2025 N-11 instructions; the supplied date is one day before that usual extended deadline.
Because no withholding or estimated payments were reported, an underpayment penalty may apply. Federal prior-year safe-harbor rules or having no prior-year tax liability could affect this penalty; the necessary prior-year information is unavailable. Hawaii has its own rules.
If tax remains unpaid, late-payment penalties and interest may apply. If a required return has not been filed by its applicable deadline, late-filing penalties may also apply. These amounts are excluded from the $10,153 estimate because filing history, prior-year liability, payment dates, and applicable interest calculations are unknown.
Applicable Forms
• Federal Form 1040: individual income tax return. • Form W-2: use the actual federal and Hawaii wage and withholding boxes. • Federal Form 2210: potentially applicable for underpayment of estimated tax; the IRS can often calculate the penalty without this form. • Hawaii Form N-11: full-year resident income tax return. • Hawaii Form N-210: potentially applicable for underpayment of estimated tax. • Federal Form 9465: if requesting an installment agreement by form; an online application may also be available. • Federal Form W-4 and Hawaii Form HW-4: adjust future payroll withholding.
Filing and Payment Steps
- Compare this estimate with the actual W-2. Confirm that federal and Hawaii income tax withholding truly are zero and that state wages equal $68,000.
- Prepare the 2025 federal and Hawaii returns using software or a preparer that supports the final 2025 rules and tax tables.
- If the returns are unfiled, file promptly. Inability to pay the full balance is generally not a reason to delay filing.
- Pay federal tax through IRS Direct Pay or an IRS Online Account, selecting tax year 2025. Pay Hawaii through Hawaii Tax Online. Other options include checks and card payments; card processing fees generally apply.
- If full payment is not possible, pay what you can and request separate federal and Hawaii payment arrangements. Interest and applicable penalties generally continue.
- Review 2026 payroll withholding promptly to reduce the chance of another unpaid balance.
Official Sources
IRS 2025 Form 1040 instructions, deductions, and tax tables: ***
IRS payment options and installment plans: ***
IRS estimated-tax rules: ***
IRS penalties: ***
Hawaii Department of Taxation forms — select tax year 2025 for N-11 instructions, tax tables, and N-210: ***
Hawaii Tax Online: ***
No return has been filed and no payment has been made through this conversation.