What counts as a break for the six-year rule?

[VERIFY: source needed — May 2026] A break is typically defined as a period where you leave mainland China for a continuous period of 30 or more days, or where your total days outside mainland China in a single year exceed a threshold. The specific rules were revised in the 2018 IIT reform — the current definition of a break resets the six-year count. Tax advisers differ on precisely how strictly the rules are enforced; take specialist advice.

Does the six-year rule apply if I live in Hong Kong rather than mainland China?

Hong Kong is a separate tax jurisdiction. Days spent in Hong Kong do not count towards the 183-day mainland China presence test. The six-year rule applies to mainland China residence only.

Does my home country's tax treaty with China affect the six-year rule?

Possibly. Some tax treaties contain provisions that limit the scope of China's taxing rights over foreign residents, which may interact with the six-year rule. This is a technically complex area — specialist advice from a dual-qualified tax adviser (familiar with both your home country tax law and Chinese IIT) is essential before year six.

China's Six-Year Tax Rule for Foreign Residents — Explained

The basic principle

China's IIT law distinguishes between two categories of taxpayer for foreign nationals:

Non-resident: Present in China for fewer than 183 days in a year. Taxed only on China-sourced income for that year.
Resident taxpayer, under six years: Present 183+ days in a year but fewer than six consecutive years of residency. Taxed on China-sourced income.
Resident taxpayer, six years or more: Has been resident in China (183+ days per year) for six consecutive years without a qualifying break. At this point, the IIT law provides that global income — including income from outside China — becomes subject to Chinese IIT.

That third category is the six-year rule in practice. The transition from “taxed on China income” to “taxed on global income” is a substantial change for any expatriate who has significant income streams outside China — rental income from property at home, investment income, overseas business income, or a second salary from a home-country entity.

What “six consecutive years” means

[VERIFY: source needed — May 2026] The six years are counted consecutively from the first tax year in which you are a China tax resident (i.e., the first year you spend 183+ days in mainland China). A year in which you spend fewer than 183 days in China does not count towards the six years — but crucially, does it reset the count?

The pre-2018 rule required a single departure of 30 or more days in a year to reset the counter. The 2018 IIT reform adjusted the break definition, but the practical application of the new rules has been the subject of some discussion among tax professionals — the authoritative STA guidance has been read somewhat differently by different advisers. The general consensus is that a qualifying break still resets the six-year counter, but the definition of a qualifying break has become slightly more rigorous.

The strategic break

Many expatriates on long-term China postings deliberately structure a departure of sufficient length in or around year five to reset the six-year counter. This is legal tax planning — there is nothing improper about managing travel to avoid triggering the global income rule, provided the break is genuine.

What a qualifying break involves in practice:

A continuous absence from mainland China of [VERIFY: source needed — May 2026] 30 or more days within the relevant tax year, or a combination of absences that exceeds the threshold over the year. (The 2018 rules revised this; confirm current rules with a tax adviser before planning.)
The departure must be genuine — not a border-run with immediate return. Tax authorities have discretion to disregard arrangements that are not substantive.
The break resets the year count; you then begin accumulating again from year one of the new cycle.

What triggers the global income charge

Reaching six consecutive years of China residency without a qualifying break means that in the seventh year (and subsequent years until a break occurs), your global income is subject to Chinese IIT. For most expatriates, this means:

Rental income from property in your home country.
Dividends from shares held outside China.
Interest on savings accounts in your home country.
Salary or fees paid by overseas entities for work performed outside China.
Business profits from overseas operations.

The applicable tax rates are the same Chinese IIT rates that apply to the equivalent income type. Relief from double taxation — where the same income is also taxed in your home country — depends on the provisions of your home country's tax treaty with China. Not all treaties provide full relief in all circumstances.

Practical steps before year five

Confirm with a China-experienced tax adviser whether your current China residency pattern has been accumulating years towards the six-year threshold.
Review your global income sources and quantify the potential additional Chinese IIT exposure if the threshold is crossed.
Understand your home country's tax treaty with China and what relief it provides. See the tax treaty by country guide.
If a strategic break is appropriate, plan it with legal and logistical advice — consider the impact on your residence permit, employer status, and any ongoing Chinese social insurance contributions.

The six-year tax rule