Hawaii Form N-288C is the application a nonresident seller files to recover HARPTA withholding that exceeds their actual Hawaii tax on the sale, without waiting until the next tax filing season. Buyers of Hawaii real property from nonresidents must withhold 7.25 percent of the amount realized and send it to the Department of Taxation under Haw. Rev. Stat. ยง 235-68.1Justia. Hawaii Code 235-68 – Withholding of Tax on the Disposition of Real Property by Nonresident Persons That flat percentage is almost always more than the tax you actually owe on the gain, and N-288C is how you get the difference back early.
When to Use N-288C (and When Not To)
Three forms sit in this family, and only one is right for your situation.
Form N-288B is filed before closing. It asks the Department to issue a withholding certificate reducing or waiving the 7.25 percent at the source. It has to reach the Department at least ten working days before the closing date, or it comes back unprocessed.2Hawaii Department of Taxation. Form N-288B Instructions – Application for Withholding Certificate If you missed that window, or if it was denied, or if the full 7.25 percent was simply withheld at closing, N-288C is what you file next.
The other alternative is to skip N-288C and claim the refund directly on your Hawaii income tax return for the year of the sale (Form N-15 for individuals, N-30 for corporations, N-20 for partnerships, N-40 for trusts and estates). The Department actually prefers this when the return is available. N-288C exists for the gap: your sale has closed, the Department has the withholding, and your return either isn’t filable yet or your tax year hasn’t ended.3Hawaii Department of Taxation. Form N-288C Rev. 2025 – Application for Tentative Refund
One thing N-288C does not touch: federal FIRPTA withholding on foreign sellers. That is a separate 15 percent handled by the IRS through Forms 8288 and 8288-B. See the note at the end of this article if that applies to you.
What to Gather Before You Start
Have these in front of you before you fill in anything:4Hawaii Department of Taxation. N-288C Instructions – Application for Tentative Refund of Withholding on Dispositions by Nonresident Persons of Hawaii Real Property Interests
- Notification from the Department of Taxation confirming it received the buyer’s withholding payment. Do not file N-288C before this arrives. Without the matching record on their side, there is nothing for your refund request to attach to.
- A copy of Form N-288A, the Statement of Withholding from closing. This has to be attached to your N-288C, and the name and taxpayer identification number on the two forms must match character-for-character.
- Your Social Security number or Federal Employer Identification Number.
- The Tax Map Key number for the property. It appears on the property tax bill and the closing paperwork.
- The closing settlement statement, showing sales price, commissions, and other costs.
- Records of your adjusted basis: original purchase price plus the cost of capital improvements (new roof, additions, renovations) made while you owned the property.
Filling Out the Form
The form is short. The arithmetic behind it is where mistakes happen.
Enter your identifying information first: name, address, taxpayer ID. Copy them exactly as they appear on the N-288A. A mismatch here is one of the most common reasons an application comes back. Then enter the Tax Map Key number, the closing date, and the gross sales price.
Now compute your actual Hawaii tax liability on the sale. Start with the amount realized, which is generally the sales price but also includes the fair market value of any other property you received and any liabilities the buyer assumed.5State of Hawaii, Department of Taxation. Tax Facts 2010-1 – Understanding HARPTA Subtract your adjusted basis (original cost plus capital improvements). Subtract selling expenses: real estate commissions, escrow fees, legal costs. What is left is your taxable gain.
Compute Hawaii income tax on that gain. If it is less than the amount shown on your N-288A, the difference is your tentative refund. Enter the N-288A withholding figure on the form and attach the N-288A itself.
Keep every receipt and record behind every number you put on the form. The Department can ask for documentation to verify the calculation, and a tentative refund is still subject to review.
Where to Send It
N-288C is mail-only. There is no electronic filing option. Send the completed form, a copy of the N-288A, and any supporting documentation to:
Hawaii Department of Taxation
P.O. Box 1530
Honolulu, Hawaii 96806-1530
Given the amounts involved and the hard filing deadline, certified mail with return receipt is worth the few dollars. It gives you dated proof of delivery if a deadline question ever comes up.
The Deadline That Disqualifies the Form
N-288C will be rejected if it arrives after the due date of your Hawaii income tax return for the year the sale occurred.3Hawaii Department of Taxation. Form N-288C Rev. 2025 – Application for Tentative Refund For most individual nonresidents on a calendar year, that date is April 20 of the following year. Miss it and the form is no longer a path to a refund; you have to claim the overpayment on the annual return instead.
Practically, the right time to file is as soon as you have the Department’s notification that the withholding was received. Sellers who close in January have almost a full year of runway. Sellers who close in November or December have the least and should move quickly.
What Happens After You File
Examiners match the N-288A withholding amount against the Department’s record of the buyer’s payment and review your gain calculation. Processing takes several weeks. If it clears, a refund check goes to the address on the application. If something is off (mismatched taxpayer ID, missing N-288A, math that does not reconcile) the application is delayed or rejected, so verify the identifying fields and the basis and expense figures before you mail.
A Note for Foreign Sellers
If you are a nonresident alien or foreign entity, HARPTA’s 7.25 percent is only one layer. FIRPTA adds a federal withholding of 15 percent, reported on IRS Form 8288.6Internal Revenue Service. FIRPTA Withholding To recover excess federal withholding you file IRS Form 8288-B with the IRS; that is a separate process from N-288C and does not involve the Hawaii Department of Taxation.7Internal Revenue Service. About Form 8288-B – Application for Withholding Certificate for Dispositions by Foreign Persons of U.S. Real Property Interests A U.S. citizen or resident who happens to live in another state is subject to HARPTA but not FIRPTA, and N-288C alone handles the Hawaii refund.