Chinese taxes for Americans: the 183-day test, the six-year rule and your US return

Here's the deal: live in Shanghai for half the year and China taxes you as a resident, while Uncle Sam taxes you because you're American. Chinese rates are high enough at expat salaries that the foreign tax credit usually wipes out most of the US bill, but you still file both returns.

The short version

• China's 183-day test: foreigners in China for 183 days or more in a calendar year are tax residents; under 183 days, only China-source income is taxed [1].
• The six-year rule: for your first six consecutive resident years, foreign-source income is taxed only if a Chinese entity or person pays or bears it. A trip of more than 30 consecutive days outside China in a year resets the count [1].
• Rates on salary run from 3% to 45%, after a CNY 60,000 standard deduction [2][3].
• Expat allowances (housing, kids' school fees, language lessons, home leave and more) can be tax-free when reimbursed with invoices, through December 31, 2027 [5].
• There's a US–China tax treaty (1984) [7], but no US–China totalization agreement for Social Security [8].

USD conversions use the Federal Reserve H.10 rate of October 30, 2026 (USD 1 = CNY 6.6538), rounded.

Are you a Chinese tax resident?

China doesn't tax by citizenship the way the US does. For a foreigner, it looks at days in China and how many years in a row you've been resident [1]:

The tax year is the calendar year, the same as back home [4].

The six-year rule in plain English

The six-year rule is your friend. For six straight years, China generally leaves alone your US interest, dividends, rental income from your house in Ohio and other foreign income, as long as no Chinese company or person pays it or bears the cost [1].

The clock resets if you spend more than 30 consecutive days outside China during a tax year [1]. A long summer trip home, a month and a day in the States, can restart the count. Many long-term Americans in Shanghai plan one long trip a year for exactly this reason. Keep your travel dates and boarding passes, because your day count is the evidence.

If you stay past six years without a break, China can tax your worldwide income [1]. At that point, your US brokerage account becomes a Chinese tax question too. A US expat tax preparer who also knows Chinese tax can check your situation before year seven.

How China taxes your salary

Wages, plus a few other kinds of income, fall under "comprehensive income." Residents get a standard deduction of CNY 60,000 (about USD 9,020) a year, or CNY 5,000 a month for withholding [3], and the rest is taxed on this scale [2]:

Interest, dividends, rental income and capital gains are generally taxed at a single 20% rate unless the State Council reduces it [2].

Residents can also claim "special additional deductions," such as CNY 2,000 a month per child for education, plus amounts for rent, mortgage interest, elder care and continuing education [3].

Withholding and the annual return

Your employer withholds tax every month, much like a W-2 job back home [4]. Some residents also file an annual reconciliation return between March 1 and June 30 of the following year, and anyone with income from outside China has to report it themselves [4]. Most people file through the IIT app or have their employer's HR team help.

Expat allowances: tax-free through 2027

This is the big one for American packages. Foreign employees can receive eight kinds of fringe benefits tax-free in China, if they're paid as reimbursements, are reasonable, and are backed by official invoices (fapiao) [5]:

• Housing rent
• Children's education
• Language training
• Meals
• Laundry
• Relocation
• Business travel
• Home leave, up to two trips home a year

The Ministry of Finance and State Taxation Administration's Announcement No. 29 of 2023 extended this treatment to December 31, 2027 [5]. Each year you choose either these tax-free benefits or the special additional deductions, not both [5]. For most Americans with a big housing or tuition allowance, the fringe benefits win by a mile.

What happens after 2027? When we checked in November 2026, the published end date was still December 31, 2027, and we didn't find an announcement extending it. China has extended the benefits before, but don't count on it. If your contract runs past 2027, ask your employer how it will handle the allowances if the exemption ends, and whether it will "gross up" your pay to cover the extra tax. The preferential treatment for annual one-time bonuses also runs to the end of 2027 [5].

Social insurance and the missing totalization agreement

Foreigners who hold a China work permit are required to join China's social insurance system [6]. In Shanghai, the employee share is 10.5% of salary, on a monthly base capped at CNY 37,302 (about USD 5,610), as of June 30, 2026 [6]. How strictly this applies to foreigners has varied in practice, so ask HR what your employer does.

China has social security agreements with a dozen countries, including Germany, South Korea, Canada and Japan [6]. The US isn't one of them, and China isn't on the Social Security Administration's list of US totalization partners [8]. What that means for you:

• Working for a Chinese employer: you generally pay into China's system and not into US Social Security, so those years won't earn US credits.
• Sent by a US employer: you may owe US Social Security and Medicare taxes on top of Chinese contributions, with no treaty to stop the double hit.
• Self-employed: US self-employment tax still applies, and no agreement exempts you.

Ask what you can claim back from China's pension account when you leave. See China's social insurance for Americans.

Filing both returns

The US–China income tax treaty dates from 1984 [7]. Like most US treaties, it has a "saving clause" that lets the US tax its own citizens as if the treaty didn't exist, with some exceptions. It has articles for teachers, researchers and students, but whether an American can use them depends on those exceptions, so get a professional opinion before you rely on one.

Here's how the two returns usually fit:

1. File your Chinese taxes first. Your employer's withholding and any annual reconciliation give you the Chinese tax figures you'll need.
2. File your US return (Form 1040). Americans abroad get an automatic two-month extension to file, though interest runs on tax due from April.
3. Choose your US tool: - The foreign tax credit (Form 1116) credits Chinese income tax against US tax on the same income. At Chinese rates, this often leaves little or no US tax on a Shanghai salary. - The foreign earned income exclusion (Form 2555) excludes up to USD 130,000 for 2025 and USD 132,900 for 2026 [9]. It's simpler, but it can leave you with less to work with than the credit.
4. File the FBAR (FinCEN Form 114) if your foreign accounts, including Chinese bank accounts and possibly Alipay or WeChat balances, top USD 10,000 combined at any point in the year. It's due April 15, with an automatic extension to October 15 [10].
5. Check Form 8938 (FATCA) for larger foreign holdings, which has higher thresholds for people living abroad.

Tax-free allowances in China are a trap for the unwary on the US side. A housing allowance that's tax-free in China can still be taxable income on your US return, with no Chinese tax to credit against it. The foreign housing exclusion may help. A US expat tax preparer can check your case.

Compare notes on HR packages and the six-year rule in our community group for Americans in China.

Sources

1. PwC Worldwide Tax Summaries: China, residence (reviewed July 22, 2026)
2. PwC Worldwide Tax Summaries: China, taxes on personal income (reviewed July 22, 2026)
3. PwC Worldwide Tax Summaries: China, deductions (reviewed July 22, 2026)
4. PwC Worldwide Tax Summaries: China, tax administration (reviewed July 22, 2026)
5. China Briefing: China's IIT preferential policy for expatriates extended to end of 2027 (August 31, 2023)
6. PwC Worldwide Tax Summaries: China, other taxes (reviewed July 22, 2026)
7. IRS: China tax treaty documents
8. Social Security Administration: US international Social Security agreements
9. IRS: Figuring the foreign earned income exclusion
10. IRS: Report of Foreign Bank and Financial Accounts (FBAR)

Keep reading

• China's social insurance for Americans
• Banking in China as an American
• Foreign earned income exclusion vs foreign tax credit
• FBAR: reporting your foreign bank accounts