If you're a foreigner working in China, someone has probably told you something about "183 days" โ and then given you slightly wrong advice about what it means. Let me clear that up, because getting this wrong has a real cost, and getting it right is simpler than most people think.
China taxes its residents on worldwide income and its non-residents only on China-source income. Two rules decide which bucket you fall into: the 183-day rule, which determines whether you're a tax resident at all, and the 6-year rule, which determines how far China's reach extends once you are. Together they look like this:
| Your Situation | Tax Status | What Gets Taxed |
|---|---|---|
| In China fewer than 90 days in a year | Non-resident | Only salary for work performed in China, and only the portion paid by a Chinese employer or a foreign employer's China establishment |
| In China 90โ182 days in a year | Non-resident | All China-source salary, including the portion paid by an overseas employer |
| In China 183 days or more, for fewer than 6 cumulative years | Resident | China-source income, plus foreign income โ but with a special exemption that protects most foreign employees' overseas income |
| 183+ days per year for 6 cumulative years, still present in year 7 | Full resident | Worldwide income, no special exemption |
The last line is the one that makes expats nervous. Let's unpack it.
The 183-Day Rule, Explained Without Jargon
The count is per calendar year. Spend 183 days or more in China in 2026, and you're a tax resident for 2026. Fewer than that, and you're a non-resident โ but don't celebrate yet, because even non-residents pay tax on income earned for work performed in China.
Here's the rule of thumb that covers most people:
- If you're paid by a Chinese entity, you pay Chinese tax on your China salary regardless of day count. The 90-day and 183-day thresholds mostly matter for people paid from overseas.
- If you're paid by an overseas entity and have no China payroll, your China tax exposure kicks in once you exceed 90 days in China โ and by 183 days, all of your salary attributable to work days in China is taxable here.
One subtlety that surprises people: "work performed in China" is counted by days physically present and working, not by where your contract says you're employed. Remote workers who spend most of the year in China on a digital-nomad arrangement are technically creating Chinese tax exposure, whether or not their employer has a China entity. That's a conversation more and more HR teams are having, and the answer usually involves structuring payroll properly rather than hoping nobody notices.
The 6-Year Rule and the 30-Day Reset
The 6-year rule applies to foreign individuals who have become Chinese tax residents. The rule says: once you've been a resident for six consecutive years, and you're still present in year seven, China starts taxing your worldwide income โ including income from your home country that previously escaped Chinese tax.
But here's the relief valve that most expats don't know about, and it's the single most useful fact in this article: if you leave China for more than 30 consecutive days in any single year, the six-year clock resets. Leave for a month-long trip home in year five, and your count starts again from zero.
Let me give you a concrete example, because this is where the confusion lives.
Example: Maria, the Marketing Director
Maria is a Portuguese marketing director who has worked in Shanghai since 2021. She earns RMB 90,000 per month, paid by her Chinese subsidiary. She spends about 340 days a year in China, returning to Lisbon for three weeks each summer and two weeks at Christmas โ so each year, her trips home exceed 30 consecutive days.
Her situation: as a Chinese tax resident since 2021, she pays Chinese tax on her full Chinese salary โ which she already does through payroll withholding. Her foreign income โ rental income from an apartment in Lisbon, dividends from a Portuguese brokerage โ remains outside China's reach, because each year's 30+ day trip home resets her six-year count.
Example: David, Who Stayed Too Long
David, a British engineer, arrived in 2019 and loved China so much he stopped going home. In 2020 through 2024, his longest trip abroad was 12 days. He crossed the six-year mark on January 1, 2025 โ and from 2025 onward, as a resident in his seventh year, his worldwide income became taxable in China. His UK rental income and capital gains now need to be declared to the Chinese tax authorities. He can claim a foreign tax credit for UK tax already paid, which prevents double taxation, but the compliance burden is real and he only discovered this when his accountant asked why he hadn't filed a worldwide income return.
The moral of both stories: the six-year clock is not a mystery โ it's a calendar exercise. Track your days out of China. If you want to keep the reset benefit, plan one trip home of more than 30 days per year. It's the cheapest tax planning most expats will ever do.
A 2026 Change You Need to Know About: Dividends Are No Longer Tax-Free
In September 2026, China ended a long-standing exemption that let foreign individuals receive dividends from foreign-invested enterprises without paying Chinese individual income tax. Effective September 1, 2026, those dividends are subject to 20 percent withholding.
If you're a foreign individual shareholder of a Chinese company โ for example, if you hold equity in a WFOE personally rather than through a holding company โ this changes your math. The practical response for most people is to review how they hold their China equity. Holding through a Hong Kong or other offshore holding company may still achieve deferral under the right structure, and foreign tax credits in your home country can offset much of the 20 percent. But the days of treating China dividends as a tax-free cash stream for foreign individuals are over. This is squarely a "talk to your advisor" topic, and it's one of those rare cases where the advice is worth paying for.
What You Should Actually Do, in Plain Terms
- Know your day count. Track your days in China per calendar year and your longest single absence. A simple spreadsheet column for "days out of China" will do.
- Know who pays you. If a Chinese entity pays you, your tax is withheld at source and your main job is making sure the payroll system has your correct tax deductions. If an overseas entity pays you and you spend significant time in China, get professional advice on your structure โ this is not a DIY area.
- Plan the reset. If you're approaching six years as a resident and want to avoid worldwide taxation, schedule a continuous absence of more than 30 days.
- Review your shareholding. If you hold Chinese company equity as an individual, the September 2026 dividend tax change is a good reason to review your holding structure now, not when the first dividend lands.
One closing thought: Chinese tax enforcement has gotten noticeably sharper. The tax authorities now cross-check data across banks, payroll systems, and social insurance records, and the days of quietly under-reporting are mostly over for salaried employees anyway, since tax is withheld at source. The risk isn't the salary โ it's the income you forget about. Know your status, keep your records, and the system is entirely manageable. For a broader overview of how individual income tax works in China, including rates and deductions, see our main Individual Income Tax guide.