By Tony Kawaguchi, REALTOR (RS-66616) · Updated November 4, 2026
If you sell Oahu property as a Hawaii nonresident, the buyer generally must withhold 7.25 percent of the amount realized under HARPTA, unless an exception or approved certificate applies. This includes Americans living on the mainland. FIRPTA generally adds 15 percent for a foreign person for federal tax purposes, subject to exceptions and reduced rates. Withholding is based on the amount realized, generally the sale price, not your profit. Here's the process from listing to a possible refund.
Before you list: which rule applies to you
HARPTA turns on residency. Under HRS 235-68, a resident seller avoids withholding by signing Form N-289. Everyone else gets 7.25 percent withheld unless an exception applies. Hawaii's Department of Taxation says a buyer has to withhold even from a known resident who doesn't hand over the N-289.
FIRPTA turns on federal tax status, not simply living overseas. A U.S. citizen abroad is not a foreign person for FIRPTA; a noncitizen's federal tax residency also matters. For example, assuming a Hawaii-nonresident foreign seller, an investment buyer and no exceptions or certificates, a $1,000,000 sale produces $72,500 in HARPTA withholding and $150,000 in FIRPTA withholding. At that same price, a qualifying buyer-residence purchase has 10 percent FIRPTA withholding, or $100,000. Your mortgage payoff does not reduce the withholding base.
Confirm Hawaii residency and federal tax status with your tax adviser before listing, so the escrow estimate accounts for applicable withholding.
Co-owners get split up. If one spouse is a resident and the other isn't, the withholding applies only to the nonresident's share. Spouses are treated as owning 50 percent each.
The exceptions are narrow. On the Hawaii side, you skip withholding if the home was your principal residence for the year before the sale and the price is $300,000 or less, or if the sale qualifies for nonrecognition, such as a fully qualifying 1031 exchange that qualifies for nonrecognition; taking no cash alone does not establish eligibility. In an exchange, any recognized gain takes the N-289 exemption off the table. Federally, a foreign seller avoids FIRPTA withholding when the buyer is an individual buying the home as a residence for $300,000 or less. Above $300,000 through $1 million, a qualifying buyer-residence purchase has a 10 percent rate. The federal residence-use test generally requires use by the buyer or a family member for at least 50 percent of the days anyone uses the property in each of the first two 12-month periods after transfer; vacant days do not count.
Once you're in escrow, the clock gets short
Start early. Form N-288B provides Hawaii certificate relief based on no gain or insufficient proceeds after qualifying obligations; a small positive gain alone is not a general reduction ground. A seller relying on the $250,000 or $500,000 principal-residence gain exclusion may apply only if the exclusion covers the entire gain. File at least 10 working days before transfer; the state cannot approve the certificate after transfer. Filing alone does not suspend withholding: an approved certificate is needed. Gather purchase closing records, improvement receipts and depreciation schedules for your tax preparer.
FIRPTA has its own certificate application, Form 8288-B. The IRS normally acts within 90 days after receiving a complete application. If submitted on or before transfer, withholding is still required, but remittance can generally wait until 20 days after the IRS mails its certificate or denial. This federal deferral does not extend Hawaii's deadline. A foreign seller seeking an ITIN solely for this sale generally needs a binding sales contract before applying; another valid reason for an ITIN may allow an earlier application.
Bring your CPA and escrow officer into the conversation early. For the rest of the selling process, my seller's guide walks through the steps.
Closing day and the 20-day window
At closing, escrow generally holds the withholding out of your proceeds. The buyer remains responsible and, usually through escrow, must file and remit the Hawaii portion with Forms N-288 and N-288A by the 20th day after transfer. Federal Forms 8288 and 8288-A and payment are generally due by the 20th day after transfer too, subject to the federal certificate rules above. These are not 20-working-day deadlines. Have escrow or your preparer confirm exact due dates. Keep your N-288A and IRS-stamped 8288-A for the applicable withholding credits.
Getting your money back
HARPTA is an estimated payment toward Hawaii income tax, not a separate tax. File the Hawaii return for the year of sale to reconcile withholding with actual liability; a refund is due only if payment exceeds what you owe. Form N-288C offers a possible tentative refund, but wait for the state's acknowledgment that it received the withholding. Generally, use the annual return once available, although N-288C may still be filed if your tax year has not ended; it is rejected after the annual return's due date. It requires a valid taxpayer ID and does not allow carryforward losses, net operating losses, suspended passive losses or the Section 121 home-sale exclusion in its calculation. You must still file the annual return. FIRPTA is reconciled on the applicable federal return. Neither system guarantees a refund or payment date. For gain and depreciation basics, see my capital gains post.
FAQ
I'm a U.S. citizen living in California. Does HARPTA really apply to me?
Yes, if you are a Hawaii nonresident. HARPTA is about Hawaii residency, not citizenship. As a U.S. citizen, you are not a foreign person for FIRPTA. HARPTA's 7.25 percent generally applies unless an exception or approved certificate provides relief.
Can I get the withholding lowered after closing?
A Hawaii N-288B certificate cannot be approved after transfer; apply at least 10 working days beforehand. After closing, review eligibility for an N-288C tentative refund or claim the withholding credit on the annual return. N-288C has timing and calculation restrictions and does not replace the annual return.
Does a 1031 exchange skip HARPTA?
A fully qualifying nonrecognition transfer can use the N-289 exemption. If any gain is recognized, that exemption is unavailable and normal 7.25 percent withholding generally applies unless another exception or approved certificate provides relief. Coordinate the exchange with your tax adviser and escrow before closing.
This post is general information, not legal, tax, insurance or financing advice.
Sources: Hawaii Department of Taxation, Tax Facts 2010-1, Understanding HARPTA (Rev. April 2025); Hawaii Revised Statutes 235-68; Form N-288 and instructions (Rev. 2025); N-288B instructions; N-288C and instructions; IRS, FIRPTA withholding; IRS, Exceptions from FIRPTA withholding; IRS, Instructions for Forms 8288 and 8288-A.
Tony Kawaguchi, REALTOR (RS-66616), The Kawaguchi Group, eXp Realty (RB-21841). Selling in Hawaii since 2005.
If you own on Oahu and live somewhere else, call me at (808) 201-3577 or reach me through my contact page before you set a listing date.