I Hold a Green Card in the Bay Area and Want to Sell My Shanghai Home to Buy in Palo Alto. I've Already Paid Tax in China. Will the U.S. Tax It Again, and How Do I Move the Proceeds Legally?

Direct answer

Yes, you report it, and you will most likely owe more. The 20% paid in China usually cancels the regular federal tax on the gain, but it can't touch the 3.8% net investment income tax (NIIT) or California's tax. On a ¥20M sale, that still leaves roughly $169K to $249K owed on the U.S. side.

The proceeds can leave China legally through the emigrant asset transfer: no more than half in the first remittance, all of it within two years. Keep two ledgers, and work them separately. The tax ledger first. The U.S. measures the gain in dollars, converting the purchase price at the exchange rate on the day you bought and the sale price at the rate on the day you sold, and the result can differ from the renminbi gain by more than $100K. The Section 121 home-sale exclusion requires 2 years of use within the 5 years before the sale; three years after you move out of the Shanghai home, it usually no longer applies. Tax paid in China is credited against federal income tax on Form 1116, but not against the 3.8% NIIT, and California neither credits it nor lets you deduct it. While the proceeds sit in a Chinese bank account, both FBAR and Form 8938 apply.

Then the money ledger. The $50,000 annual foreign-exchange quota each person has in China explicitly can't be used to buy property abroad. The lawful route is the emigrant asset transfer. You must already hold U.S. permanent residence and have cancelled your hukou, China's household registration. You apply once, for the full amount, at the foreign-exchange bureau (SAFE) where your hukou was registered. The first remittance is capped at half; one year later you may send half of what remains; after two years, the rest. In MK Bay Area Pulse Q3 2026 (MLSListings data), Palo Alto single-family homes sold in a median 9 days on market. So the order is: move the money first, then start touring. This article covers only Bay Area households holding green cards and filing U.S. returns on worldwide income. It is for decision education and is not legal or tax advice; confirm any action with your attorney and CPA.

Who this article is for

• Green card holders working in the Bay Area who file U.S. returns on worldwide income and own a home in China bought before the green card, which they plan to sell toward a purchase in Palo Alto or Los Altos. In MK Bay Area Pulse Q3 2026 (MLSListings single-family closings across three counties), Palo Alto recorded 103 sales at a median $4,200,000, and Los Altos 72 sales at a median $4,910,150.
• Households that moved to the Bay Area less than 3 years ago and lived in the Shanghai home until they left. You may still be inside the Section 121 window, which is a reason to move the sale up.
• Households settled in the Bay Area for many years whose Shanghai home has sat empty or been rented out, and who need to re-estimate the tax with no home-sale exclusion.
• Sellers whose proceeds have already landed in a Chinese bank account, with no plan yet for reporting the money or moving it out.

Three dimensions that decide the tax and the timeline

One: the gain is measured in dollars, from the day you bought

For tax purposes, a green card holder is a resident alien and reports worldwide income (IRS Publication 519). The gain on a home sold in China is a capital gain, taxed at long-term rates if you held it more than a year. The IRS requires every amount on a return in U.S. dollars, with foreign-currency items converted at the rate in effect when they were received, paid or accrued. Cost converts at the rate on the day you bought, the sale price at the rate on the day you sold, and the difference is the gain the U.S. recognizes.

That can open a real gap between the renminbi and dollar figures. In this article's illustration, a home bought in 2012 for ¥8M (assumed rate 6.3, a cost of about $1.270M) and sold in 2026 for ¥20M (assumed rate 7.1, about $2.817M) shows a dollar gain of about $1.547M. Convert the ¥12M renminbi gain at the sale-date rate instead and you get about $1.690M, overstating it by about $143K. For homes bought before the currency reform of July 21, 2005, when the renminbi was held near 8.28 to the dollar (it was reset to 8.11 that day, PBOC Announcement [2005] No. 16), the effect runs the other way: the dollar gain is larger than the renminbi gain. Nor does the U.S. reset your cost to market value on the day you received the green card. Appreciation before that day is taxed as well.

Then Section 121. Publication 523 requires ownership for 24 months and use as your home for 24 months within the 5 years before the sale, and says nothing about the home having to be in the U.S. For a married couple filing jointly to claim the full $500,000, each spouse must meet the use test. On a timeline, it comes down to one line: three years after you move out of the Shanghai home, the window closes. For families settled in the Bay Area for years, the exclusion usually no longer applies. How gain above the exclusion is taxed is covered in Selling a Long-Held Bay Area Home, the $500K Gain Exclusion Barely Dents It—How Much Tax Is Owed on the Rest? If you rented the home out after moving, the rent belongs on your U.S. return every year. A foreign residence first rented out in 2018 or later is depreciated straight-line over 30 years under ADS. On sale, your cost is reduced by depreciation allowed or allowable; Section 121 can't exclude that portion of the gain, and it is taxed at up to 25% (IRC §1(h)(1)(E)).

Two: how far the tax paid in China reaches

Article 12(1) of the U.S.–China income tax treaty lets the country where real property is located tax gains on its sale. Article 22(2) commits the U.S. to credit income tax paid to China. On your return, that means Form 1116: the 20% individual income tax paid in China on the gain can offset the U.S. federal income tax on that same gain. The credit is capped at the U.S. tax on the foreign income. Any excess carries back 1 year and forward 10, but only against U.S. tax on future foreign income in the same category, which most households will never have.

The credit stops at regular federal income tax, and two layers sit beyond its reach. The first is the 3.8% NIIT, owed by joint filers with MAGI above $250,000. IRS regulations and the Tax Court's 2021 Toulouse decision both hold that the foreign tax credit can't offset it. The Court of Federal Claims had allowed the credit under the U.S.–France (Christensen) and U.S.–Canada (Bruyea) treaties. On August 31, 2026, the Federal Circuit reversed both, holding that treaty credits are bounded by U.S. domestic law, under which the foreign tax credit applies only to Chapter 1 income tax; the NIIT sits in Chapter 2A. Article 22(2) of the U.S.–China treaty itself provides that the U.S. credit is given "in accordance with the provisions of the law of the United States." Budget as though it can't be offset. The second layer is California. The state taxes residents on income from all sources and treats capital gains as ordinary income, at a top marginal rate of 12.3%, plus 1% on taxable income above $1M. The other-state tax credit under R&TC §18001 covers only other U.S. states and territories, and FTB regulations state plainly that "state" does not include a foreign country. Section 17220, in turn, disallows any deduction for foreign income taxes. Tax paid in China reduces your California tax by nothing.

On the China side, gains on property transfers are taxed at 20%. If you can document the original cost, tax is levied on the actual gain; if you can't, the tax bureau assesses it as a percentage of the sale price, and that percentage varies by city. Whether tax assessed this way is fully creditable as a foreign income tax is a question for your CPA under current credit rules. A home owned and lived in for at least five years that is the family's only residence is exempt from individual income tax (Caishui [1999] No. 278), subject to review by the local tax bureau. For the reverse case, someone who has moved back to China and sells a Bay Area home, see I've Moved Back to China, Sold Our Bay Area Home, and Paid the U.S. Tax. Do I Still Owe China Another 20%?

Three: while the money sits in China, and how it gets out

The home itself isn't reported to the U.S. Real estate held directly abroad isn't a financial account for FBAR purposes, nor a specified foreign financial asset for Form 8938. Once the proceeds land in a Chinese bank account, both forms are triggered at once. And on the staged schedule below, the money stays in China across at least three calendar years, every one of which has to be reported.

The standard lawful route for sale proceeds to fund a purchase abroad is the emigrant asset transfer. SAFE's current service guide for the approval, whose requirements are uniform nationwide, sets three conditions. You hold foreign permanent residence. The money comes from lawful property you held in China before obtaining that residence: a Shanghai home bought before the green card qualifies, one bought after doesn't. And the property isn't subject to transfer restrictions imposed by judicial or supervisory authorities. Two items in the application need lead time. The first is proof of settlement abroad. China and the U.S. are both parties to the Apostille Convention, so permanent residence documentation bearing an apostille can stand in for consular legalization. The second is a hukou cancellation certificate from the public security bureau where you were registered before emigrating. Once the hukou is cancelled, your Chinese resident ID card stops working, and from then on you deal with Chinese banks and property registration on your passport; ask in advance how cancellation affects hukou-linked arrangements such as social and medical insurance. You will also submit tax certificates for the sale (Guoshuifa [2005] No. 13), and the amount you apply for is the net figure after tax.

One step in the review is easy to leave out of the plan. The same service guide states that if the applicant or a close relative is a state public servant, a category that includes civil servants, managers at state-owned enterprises and those in management roles at public education, research and healthcare institutions, and the application exceeds ¥1M, SAFE may send an inquiry to the supervisory authorities during review. Large applications that look suspicious may also be checked with public security and judicial authorities. Under the Huifa [2004] No. 118 operating guidelines, the authority receiving an inquiry replies in writing within 10 working days. Families with a parent or spouse in a management role at such an institution should prepare more complete source-of-funds documentation than a typical applicant, and leave room for that step in the timeline.

One illustrative home: how the three tax bills land, with and without Section 121

The core numbers first. The same Shanghai home, sold for ¥20M, shows a dollar gain of about $1.547M. China's individual income tax at 20% of the gain is ¥2.4M, about $338K. That exceeds the regular federal tax, so in both scenarios the regular federal tax after the credit is about $0. What remains on the U.S. side is the NIIT and California tax the credit can't reach: about $169K combined if Section 121 applies, about $249K if it doesn't. Across all three jurisdictions, the totals are about $507K and about $587K.

Table assumptions: married filing jointly, both spouses U.S. tax residents; purchase-date rate 6.3 and sale-date rate 7.1 are assumed values; no mortgage, never rented; China tax at 20% of the gain, excluding VAT, agent fees and other transaction costs and allowable deductions; federal tax roughly at the 20% long-term capital gains rate, with the credit limit taken as roughly equal to the regular federal tax on this gain; California roughly at 12.3%, without the extra 1% above $1M. All amounts are illustrative estimates, not any real transaction or tax bill. Sources: IRS Publications 523 and 514, Instructions for Form 1116, IRC §1411, U.S.–China tax treaty Articles 12 and 22, California R&TC §17041, §17220 and §18001.

What to remember: when China's rate is at least as high as the federal rate, Section 121 does almost nothing at the federal level; its value shows up in the NIIT and California. In this example, meeting it versus not is worth about $80K, roughly the $500K exclusion times 3.8% plus 12.3%. Once China exempts the sale as a five-year, only-home sale, there is no foreign tax left to credit. Without Section 121, the three-way total falls only from about $587K to about $558K: of the roughly $338K saved in China, about $309K reappears as U.S. federal tax. Section 121 also gains weight, with the gap between meeting it and not widening from about $80K to about $180K. Then there is cash flow. The NIIT and California tax are due in dollars by April of the year after the sale, with quarterly estimated payments usually required on a gain this size, and by then half the proceeds may still be in China.

Moving the proceeds: one application, two years to finish

The core numbers first. Article 6 of the Interim Measures for Individuals' Outbound Transfer of Property requires an emigrant asset transfer to be applied for in full, once, and remitted in stages. The first remittance may not exceed half the approved total; one year after it, half of the remainder may follow; after two years, everything left. If the full amount is ¥200,000 or less, it may go out at once with approval. In the example above, net proceeds after tax are ¥17.6M, so the first remittance tops out at ¥8.8M, about $1.24M at 7.1.

Sources: PBOC Announcement [2004] No. 16, Articles 5 and 6; Huifa [2004] No. 118 operating guidelines (the version still on safe.gov.cn retains the procedure for second and later purchases and remittances); SAFE Guizhou Branch service guide for the emigrant asset transfer approval (May 2025), which notes that all requirements are uniform nationwide: acceptance within 5 working days, statutory review within 20 working days, no fee. Local practice follows the current rules of the SAFE branch where your hukou was registered.

What to remember: the first remittance of about $1.24M is roughly 30% of Palo Alto's Q3 2026 median single-family sale price of $4.2M. Buying all cash means waiting the full two years; in the same Pulse quarter, 36.9% of Palo Alto sales were all cash. The other sequence is to use the first remittance as the down payment, finance the rest, and pay the loan down early as the later tranches arrive, after confirming with the lender which source-of-funds documents it needs for money from abroad. And at each conversion, if the renminbi has strengthened against the dollar since the sale date, the currency gain is generally taxable (IRC §988(e)(2) excludes gains of $200 or less per personal transaction), while a loss from a weaker renminbi generally isn't deductible. Have your CPA calculate it tranche by tranche.

While the money sits in China: FBAR and Form 8938 thresholds and penalties

The core numbers first. If your foreign financial accounts total more than $10,000 at any point in the year, you file an FBAR. Married filing jointly and living in the U.S., you also attach Form 8938 if foreign financial assets exceed $100,000 at year-end or $150,000 at any time during the year. Net proceeds of ¥17.6M, about $2.48M, clear both lines many times over.

The FBAR is filed separately through FinCEN's BSA E-Filing System, not with your tax return. It is due April 15, automatically extended to October 15, and each account's maximum balance is converted to dollars at the Treasury's published year-end exchange rate. Form 8938 is attached to Form 1040. Penalties follow the inflation adjustments published in January 2025. A non-willful FBAR violation carries up to $16,536 a year, applied per report, as the Supreme Court confirmed in Bittner in 2023. A willful violation carries up to $165,353 or 50% of the account balance, whichever is greater, per violation. Failing to file Form 8938 costs $10,000, plus up to $50,000 more if you still haven't filed after IRS notice. An underpayment tied to an unreported asset draws a 40% penalty, and the statute of limitations for that year never starts to run.

Set the penalties beside the tax. In this example, the NIIT and California tax due on the U.S. side total $169K to $249K. If the $2.48M account were found to be willfully unreported, the cap on a single penalty would be about $1.24M. A missed filing costs far more than the tax itself.

MK Group in practice: until the money lands, a search can only lose on speed

Why funding comes before touring is illustrated by an April 2026 experience MK Group had in Palo Alto (anonymized; it concerns decision speed and involves no sale in China or remittance). A client with a $10M budget, paying 100% cash, found a benchmark home listed at $10M. The finishes, materials and renovation quality all met expectations, and the client wanted one more night to think it over. By the next morning, the home was in contract with another buyer. One point from the team's debrief applies just as much to readers here: before the next showing, have the inspection, the disclosures and proof of funds ready, so that the time from seeing a home to signing an offer drops from 24 hours to 4 to 6.

That client already had the money and lost by one night. For a buyer with half the proceeds still in China and a year to wait for the second remittance, the gap stretches to a full year: without proof of funds, there is no offer a seller will take seriously. In Pulse Q3 2026, Palo Alto single-family homes sold at a median 107.6% of original list price, and the competition for good homes plays out in the first few days on market.

Once the money and the holding structure are settled, the pace can be fast. In May 2026, MK Group, the team led by Marie Wang (DRE# 02110980) and Kevin Mo (DRE# 02127623), helped a buyer purchasing through a corporate entity lock up a home in Los Altos Hills for about $11M, all cash, in two weeks. The team first settled three questions, whose name the home is bought in, how the money moves and how it will be held, and only then moved toward closing. Touring compresses too. For an entrepreneur family, Marie Wang narrowed MLS and off-market inventory to 4 homes in half an hour, across Menlo Park, Palo Alto, Los Altos Hills and Los Altos. After half a day of showings, the clients could see exactly what separated a $7M home from a $9M one. (They had flown in from Shenzhen to look at Silicon Valley for the first time; no sale in China or remittance was involved, and they made no offer on that visit.)

On this article's timeline, that adds up to three things:

• Touring compresses to half a day; remittances don't. When the two later tranches can go out is set by SAFE's rules, not by the market.
• Work out what the first remittance can do before choosing between all cash and a loan. The funding steps for an all-cash purchase from abroad are laid out in the all-cash offer process for buyers funding from overseas.
• Proof of funds is a complete chain: the sale contract in China, the tax certificates, SAFE's approval and the arrival records in your U.S. account. That chain is what escrow and the lender will examine, and every link's documents need to be kept before the money leaves China.

Common mistakes

Mistake one: "I paid 20% in China, so there's nothing to report in the U.S."

You report, and three things at that. On the Form 1040 for the year of sale, the gain goes in at its dollar value, with Form 1116 attached to claim the credit. If the proceeds sit in a Chinese account and your foreign accounts total more than $10,000 at any point in the year, you file an FBAR separately. Married filing jointly and living in the U.S., you also attach Form 8938 once foreign financial assets pass the thresholds. The credit reaches only regular federal income tax: it can't offset the 3.8% NIIT, and nothing offsets California. In this article's example, even though the ¥2.4M paid in China exceeds the regular federal tax, $169K to $249K is still owed in the U.S.

Mistake two: "Each of us has a $50,000 annual quota; pool the family's and that will cover it"

SAFE's Personal Foreign Exchange Purchase Application Form states that the quota may not be used to buy property abroad, invest in securities, buy life insurance or for other capital-account purposes not yet opened. Converting in relatives' names and consolidating the money with one person is a violation SAFE polices: you are placed on a watch list, lose the quota for that year and the following two, and may face administrative penalties or referral for anti-money-laundering investigation. On the U.S. side, escrow, banks and lenders will all ask about money whose source can't be explained. Proceeds from selling a home in China leave lawfully through the emigrant asset transfer.

Mistake three: "The U.S. doesn't care about appreciation from before I got the green card"

The U.S. has no rule resetting cost to market value on the day you become a tax resident. Your cost is the actual purchase price, converted at the purchase-date rate, and the gain runs from the day you bought to the day you sold. Buy in 2012, receive a green card later, sell in 2026, and the U.S. taxes all 14 years of appreciation; the tax paid in China is then credited on Form 1116.

Mistake four: "China exempted the sale as a five-year, only-home sale, so we kept that money"

When China exempts the sale, there is no foreign tax for the U.S. to credit, and the regular federal tax comes back. In this article's example, with the roughly $338K China tax waived, regular federal tax goes from about $0 back up to about $209K (meeting Section 121) or about $309K (not meeting it). For a household that doesn't meet Section 121, the three-way total falls only from about $587K to about $558K. The exemption is still worth applying for. Just don't build a purchase budget around saving 20%.

Next steps

1. Confirm your Section 121 window. Write down the dates you and your spouse each moved out of the Shanghai home, and check whether your planned closing date is still within 3 years of them. If you're inside the window, move the sale up. If you rented the home out after leaving, pull every year's rental reporting and depreciation records.
2. Gather the purchase records and work out your dollar cost. Convert the purchase contract, the deed-tax receipt and renovation invoices at the purchase-date rate. Before listing, have a tax adviser in China confirm whether tax will be levied on the actual gain or assessed, and whether the five-year, only-home exemption applies; collect the tax certificate after the transfer. You will use that certificate twice: for the SAFE application, and for your U.S. CPA's Form 1116.
3. Sequence the documents before listing. Proof of settlement on your permanent residence documentation with an apostille, the hukou cancellation certificate and the tax certificates come first; then one application for the net amount at the SAFE branch where your hukou was registered. Ask in advance how cancelling your hukou affects your Chinese ID card, bank accounts and social insurance. If you or a close relative is a state public servant, leave time for SAFE's inquiry.
4. Have a CPA carry the U.S. tax for the year of sale all the way through. Regular federal tax after the credit, the NIIT, California tax and the credit carryover should all be calculated, with quarterly estimated payments on a large gain. The FBAR is due each April 15 (automatically extended to October 15), and Form 8938 goes with your Form 1040, every year until the account in China is empty.
5. Start touring after the first remittance lands. Let the amount that arrives decide between all cash and a loan, and have the proof-of-funds chain and a loan preapproval ready. The showings themselves can fit into half a day.

This article is for decision education and is not legal or tax advice. Confirm any action with your attorney, a U.S. CPA and a tax adviser in China. All figures are illustrative estimates under published rules, using assumed exchange rates. SAFE's handling of emigrant asset transfers follows the current rules of the branch where your hukou was registered; FBAR and Form 8938 thresholds and penalties follow the figures FinCEN and the IRS publish for each year.