China Tax Filing Guide 2026 — Annual IIT Reconciliation, Monthly Withholding, E-Portal
China's Individual Income Tax (IIT) system requires monthly withholding by employers and an annual reconciliation (1 Jan – 30 Mar) through the 自然人电子税务局 (Individual E-Tax Portal). Special additional deductions significantly reduce taxable income.
Overview of China's IIT System
China's Individual Income Tax (个人所得税) operates as a hybrid system combining monthly withholding (预扣预缴) by employers with an annual reconciliation (年度汇算清缴). For employment income (综合所得 — comprehensive income), the employer withholds IIT each month using the cumulative withholding method (累计预扣法). At year-end, the employee reconciles their total annual income, deductions, and tax paid through the 自然人电子税务局 (Individual E-Tax Portal), filing between 1 January and 30 March of the following year. The seven-bracket progressive rate applies: 3%, 10%, 20%, 25%, 30%, 35%, and 45%. The basic deduction is 5,000 CNY/month (60,000 CNY/year). Special additional deductions (专项附加扣除) for housing, education, healthcare, and elderly care further reduce taxable income. Foreigners may also claim additional allowances for housing, education, and travel expenses under certain conditions. Special rules for foreign employees →
Monthly Withholding by Employers
Employers must withhold IIT from each employee's salary monthly and remit it to the tax authorities by the 15th of the following month. The withholding uses the cumulative withholding method: each month, the employer calculates the employee's cumulative taxable income year-to-date, applies the progressive tax rate to the cumulative amount, subtracts the tax already withheld in prior months, and withholds the difference. For example, an employee earning 20,000 CNY/month with standard deductions of 5,000 CNY/month and special additional deductions of 2,000 CNY/month has monthly taxable income of 13,000 CNY — but the cumulative method means the tax rate increases as the year progresses. January's tax is lower (13,000 × 3% = 390 CNY), while December's tax may be higher as cumulative income pushes into higher brackets. The cumulative method ensures that the total tax withheld over the year closely approximates the final annual liability, minimising the reconciliation adjustment. Employers are responsible for accurate withholding — errors can result in penalties. Employees should verify their withholding amounts each month through the employer's payslip or the e-tax portal.
Annual IIT Reconciliation (年度汇算清缴)
The annual reconciliation period runs from 1 January to 30 March of the following year (for the prior calendar year). Employees must file through the 自然人电子税务局 portal (available as a web platform at etax.chinatax.gov.cn and as a mobile app). The reconciliation aggregates: (1) Employment income (工资薪金). (2) Service income (劳务报酬). (3) Royalty income (稿酬). (4) Author's remuneration (特许权使用费所得). Other income categories (business income, investment income, rental income, etc.) are taxed separately on a schedule or transaction basis and are not included in the comprehensive income reconciliation. The portal automatically populates income and withholding data from employers and financial institutions. The taxpayer reviews the data, adds or modifies special additional deductions, and submits the return. If too much tax was withheld, a refund is issued (typically within 30 days). If too little was withheld, the balance must be paid by 30 March. Late filing penalties are 0.05% per day on unpaid tax, plus potential fines of 50-500% of the underpaid amount for wilful evasion.
Special Additional Deductions (专项附加扣除)
Introduced in the 2018 IIT reform and expanded in 2023-2025, special additional deductions significantly reduce taxable income for specific expenses. The deductions for 2026 are: Children's education (子女教育) — 1,000 CNY/month per child (2,000/month from 2023 for children under 3 or in education). Continuing education (继续教育) — 400 CNY/month or 3,600 CNY/year for professional qualifications. Medical expenses (大病医疗) — deduction for out-of-pocket medical expenses exceeding 15,000 CNY (capped at 80,000 CNY). Housing loan interest (住房贷款利息) — 1,000 CNY/month for first-home mortgage interest. Housing rent (住房租金) — 800-1,500 CNY/month depending on city tier. Elderly care (赡养老人) — 2,000 CNY/month (up to 3,000 CNY from 2023 for single-child households) for supporting parents aged 60+. Infant care (3岁以下婴幼儿照护) — 1,000 CNY/month per child (increased to 2,000 CNY/month from 2023). Personal pension (个人养老金) contributions — up to 12,000 CNY/year deduction. These deductions can be claimed through the employer (for monthly withholding adjustments) or directly in the annual reconciliation.
The 自然人电子税务局 (Individual E-Tax Portal)
The 自然人电子税务局 (Natural Person Electronic Tax Bureau) is the central online platform for IIT filing, available at etax.chinatax.gov.cn and as a mobile app ("个人所得税" app). Key features: (1) Income and tax history — automatically populated from employers and financial institutions. (2) Deduction management — add or modify special additional deductions. (3) Annual reconciliation filing — guided step-by-step filing. (4) Refund processing — direct deposit to a Chinese bank account (refunds typically processed within 7-30 days). (5) Tax payment — pay any balance due via bank transfer, Alipay, or WeChat Pay. (6) Foreigner-specific module — for claiming treaty benefits, allowances, and the 6-year rule exemption. The portal supports both Chinese and English interfaces. Foreigners need to register using their passport number or Foreigner's Permanent Residence ID. Biometric verification (facial recognition) is required for the mobile app registration. The portal has significantly improved user experience since its launch in 2019, with most taxpayers completing the process in 10-20 minutes.
Filing for Foreigners
Foreign employees in China must also file annual IIT reconciliations if they are tax residents (183+ days in China). Key considerations: (1) Treaty benefits — claim the 183-day exemption under the applicable double taxation treaty through the portal (self-declaration with supporting documents). (2) Foreign housing and education allowances — under transitional rules (ending 2027), foreign employees may deduct housing rent, language training, and children's education expenses (subject to reasonable amounts and supporting receipts). (3) 6-year rule exemption — foreign residents with fewer than 6 consecutive years of residency can claim exemption on foreign-source income. (4) Social insurance deduction — employee social insurance and HPF contributions are deductible. (5) Bilateral social security agreements — if exempt from Chinese social insurance under an agreement, no deduction is available. Foreigners should ensure their passport is registered with the tax bureau and linked to their e-tax account. Tax professionals are recommended for complex cross-border filings.
Penalties and Common Mistakes
Common errors in IIT filing include: (1) Failing to report all employers (multiple jobs must be combined in the annual reconciliation). (2) Missing special additional deductions (many taxpayers fail to claim eligible deductions). (3) Incorrect housing fund deduction (deduction is only for actual contributions, not the employer's portion). (4) Treaty benefits claimed without proper documentation (the tax bureau may request the residence certificate retrospectively). (5) Late filing (penalties of 0.05% per day). (6) Not reporting foreign-source income after the 6-year threshold (risk of fraud penalties). The tax authorities are increasingly using data matching between employer-reported income, bank records, and CRS data. Voluntary disclosure of errors before an audit typically results in reduced penalties. For 2026, the tax authorities have announced a focus on verifying high-income earners' filings and cross-border income reporting.