Last verified: May 2026. U.S. tax law affecting non-resident aliens is complex and subject to change. This article provides general educational information only. Consult a CPA or tax attorney licensed to practice U.S. tax law before making any filing decisions.
Foreign investors who own Seattle short-term rental property—including Chinese nationals, Canadian residents, and other non-resident aliens—face a different set of U.S. tax obligations than domestic owners. The consequences of getting this wrong include IRS penalties, withholding on rental income, and a mandatory 15% withholding on the gross sale proceeds of your property.
Key takeaways
- Non-resident alien owners must obtain an Individual Taxpayer Identification Number (ITIN) to file U.S. tax returns on STR income. You cannot file without one.
- Rental income earned by a non-resident alien is subject to a flat 30% withholding tax on gross income—unless you make a "net income election" by filing a return, which allows you to pay tax only on net income at graduated rates.
- FIRPTA (Foreign Investment in Real Property Tax Act) requires buyers to withhold 15% of the gross sale price—not just the net profit—when a non-resident alien sells U.S. real property. This is withheld regardless of whether you made a profit.
- The U.S.–China income tax treaty does not exempt Chinese nationals from FIRPTA withholding on property sales. The treaty provides limited relief on certain passive income categories.
- A U.S.-based CPA who specializes in non-resident alien real estate tax is not optional for this ownership profile. The filings are specialized and the cost of errors is high.
Who is a "non-resident alien" for U.S. tax purposes?
The IRS definition of a non-resident alien is based on residency status, not citizenship. You are a non-resident alien (NRA) for U.S. tax purposes if:
- You are not a U.S. citizen, AND
- You do not meet the "substantial presence test" (present in the U.S. for at least 183 days in the current year, or a weighted formula across three years), AND
- You do not hold a green card (lawful permanent resident status)
A Chinese national who owns Seattle real estate but lives in China and spends fewer than 183 days per year in the U.S. is a non-resident alien for tax purposes. A Chinese American who holds a green card or U.S. citizenship is a resident and files the same way as any U.S. taxpayer.
If your residency status is borderline—you spend significant time in the U.S. on a visa—consult a tax professional before assuming NRA status.
Step 1: Get an ITIN
An Individual Taxpayer Identification Number (ITIN) is a tax processing number issued by the IRS for individuals who are not eligible for a Social Security number (SSN). Non-resident alien property owners who earn U.S.-source income must have an ITIN to file U.S. tax returns.
How to apply:
- Complete IRS Form W-7 (Application for IRS Individual Taxpayer Identification Number).
- Submit with original identification documents (passport) or certified copies, and with a completed U.S. tax return (Form 1040-NR) for the tax year in question.
- Applications can be submitted by mail, at an IRS Taxpayer Assistance Center, or through an IRS-authorized Certifying Acceptance Agent (CAA)—CAAs can certify copies of documents so you don't have to mail out your original passport.
Processing time: 6–11 weeks when filed alongside a tax return; longer during peak seasons. Apply early—missing an ITIN-linked filing deadline generates immediate penalties.
ITIN renewal: ITINs that have not been used on a U.S. federal tax return for three consecutive tax years expire. If your ITIN has expired, you must renew before filing.
Step 2: Understand how your rental income is taxed
For non-resident aliens, U.S.-source rental income is taxed under one of two methods:
Default method (30% flat withholding on gross income): Under default rules, a non-resident alien's U.S.-source rental income is subject to a 30% withholding tax on the gross rental receipts—with absolutely zero deductions allowed for operational expenses. If you earn $60,000 gross from your Seattle STR, the IRS expects $18,000. No deductions for mortgage interest, property tax, management fees, or ongoing maintenance.
This is almost always the wrong financial choice for STR owners with meaningful overhead costs.
Net income election (graduated rates on net income): By filing a U.S. tax return (Form 1040-NR) and making an explicit election under IRC Section 871(d), a non-resident alien can choose to treat rental income as "effectively connected with a U.S. trade or business." This allows you to:
- Deduct all ordinary and necessary rental expenses (mortgage interest, property taxes, management fees, insurance, maintenance, and accelerated cost segregation depreciation)
- Pay tax only on net rental income at the same graduated rates that apply to U.S. residents
- Carry forward net rental losses to offset future rental income
For most non-resident alien Seattle STR owners, this election is significantly more favorable than the default gross withholding method. The election is made on your Form 1040-NR and applies to all U.S. rental property you own.
Withholding by management companies: If you have a U.S.-based property manager, they are technically required to withhold 30% of rental income remitted to you as a non-resident alien and remit it to the IRS on your behalf, unless you provide them with a completed Form W-8ECI certifying that the income is effectively connected income (meaning you've made the net income election). Discuss this with your property manager and CPA before income starts flowing.
Step 3: Understand FIRPTA before you sell
FIRPTA—the Foreign Investment in Real Property Tax Act—is the most financially significant U.S. tax rule for non-resident alien property owners, and the one most commonly misunderstood.
The basic rule: When a non-resident alien sells U.S. real property, the buyer is legally required to withhold 15% of the gross sale price and remit it to the IRS. This is not 15% of the profit or the capital gain—it is 15% of the total gross transaction price.
Example: You sell your Seattle STR for $900,000. The buyer is required to withhold $135,000 (15% of $900,000) at closing and remit it straight to the IRS, regardless of what you originally paid for the property or how much of that $900,000 represents net gain.
The withholding is a payment toward your ultimate tax liability, not a final tax. You file a U.S. tax return (Form 1040-NR) reporting the actual capital gain and the final tax owed. If the withholding exceeds your actual tax liability, you receive a refund. If your actual tax is higher than the withholding, you pay the difference.
When FIRPTA withholding applies:
- Sale of U.S. real property by a non-resident alien: always, unless an exception applies
- Sale of a partnership interest or stock if the entity holds U.S. real property
- Exchange of U.S. real property (with specialized 1031 exchange rules)
FIRPTA exceptions (withholding may be reduced or eliminated):
- Buyer uses property as personal residence and purchase price is $300,000 or less: No FIRPTA withholding required. At $300,001, the full 15% applies.
- Withholding certificate from IRS: You can apply to the IRS for a withholding certificate (Form 8288-B) before closing, asking the IRS to reduce the withholding to an amount closer to the actual expected tax liability. This requires demonstrating your precise gain and expected tax calculation. Processing typically takes 90 days; apply well in advance.
- Property sold at a loss: You can apply for a withholding certificate showing no gain, and therefore prove no withholding is required.
Planning implication: FIRPTA withholding is often a massive cash flow surprise for non-resident sellers—$135,000 withheld at closing on a $900,000 sale is a meaningful sum held by the IRS until your return is processed and a refund issues (which can take 6–12 months). Proactive planning with a CPA reduces this friction significantly.
The U.S.–China tax treaty: what it does and doesn't do
The United States and China have a bilateral income tax treaty that provides certain relief for Chinese nationals with U.S.-source income. However, Chinese STR owners should not overestimate the treaty's scope:
What the treaty provides:
- Reduced withholding rates on certain passive income (dividends, interest) for Chinese residents
- Limited tax exemptions for students, researchers, and certain corporate activities
- A framework for resolving double taxation disputes
What the treaty does not provide:
- Exemption from FIRPTA withholding on property sales. FIRPTA is explicitly carved out of standard treaty provisions.
- General exemption from U.S. rental income tax. Chinese residents with U.S. rental income still owe U.S. tax on that income.
- A substitute for ITIN or standard U.S. filing obligations.
Annual filing obligations for non-resident alien STR owners
Each year you earn U.S.-source rental income as a non-resident alien, your filing obligations include:
| Form | Purpose | Due date |
|---|---|---|
| Form 1040-NR | U.S. Non-Resident Alien Income Tax Return | April 15 (June 15 if no U.S. wages) |
| Schedule E | Supplemental Income and Loss (rental income detail) | Filed alongside 1040-NR |
| Form 8840 | Closer Connection Exception (if applicable) | April 15 |
| FinCEN 114 (FBAR) | Foreign Bank Account Report (if applicable) | April 15 (auto-extension to October 15) |
What URPM recommends for foreign-owner clients
URPM manages Seattle STR properties for non-resident alien owners, including Chinese nationals. Our specialized management services for this ownership profile include:
- Ensuring the property management agreement and remittance structure is compatible with the owner's ITIN and NRA tax filing obligations.
- Providing clean annual income and expense reports in the exact format required for Form 1040-NR preparation.
- Connecting owners with specialized cross-border CPAs who focus on NRA real estate tax in the Pacific Northwest.
- Advising on whether mid-term rental (30+ days, outside Seattle's STR permit requirement) is a more compliant and operationally simpler model for remote non-resident owners.