Individual Income Tax (IIT) is a crucial component of enterprise HR management and financial accounting. As withholding agents, enterprises' lawful withholding and remittance of IIT is not only a legal obligation but also关系到员工的切身利益. Since the implementation of the new IIT law in 2019, the comprehensive annual reconciliation system has been fully implemented, placing higher demands on enterprise IIT management. This article systematically introduces IIT calculation methods and filing procedures.
IIT Overview
Individual Income Tax is levied on various incomes obtained by natural persons (individuals). Residents in China (with domicile or who have lived in China for 183+ days cumulatively in a tax year) must pay IIT on income obtained within China. Non-residents pay IIT only on income obtained within China.
IIT taxable scope includes: wages and salaries, labor service remuneration, author's remuneration, royalties, business income, interest/dividends, property leasing, property transfer, and occasional income.
Tax Rate Structure
- Comprehensive income: 3% to 45% super progressive rates
- Business income: 5% to 35% super progressive rates
- Interest, dividends, property leasing, transfer, occasional: 20% flat rate
IIT Calculation Method
Wage and salary income is the most common IIT taxable item, calculated using the cumulative预扣 method.
Calculating Taxable Income
For residents receiving wages and salaries, the annual taxable income equals annual income minus 60,000 RMB (standard deduction) minus special deductions, special additional deductions, and other legally determined deductions.
Formula: Taxable Income = Annual Income - 60,000 - Special Deductions - Special Additional Deductions - Other Deductions
Special Additional Deductions
Since the 2019 IIT reform, seven items of special additional deductions are available:
- Children's education: 2,000 RMB/month per child
- Continuing education: 400 RMB/month for degrees; 3,600 for professional certifications
- Serious illness medical: Up to 80,000 RMB annually beyond 15,000 RMB threshold
- Housing loan interest: 1,000 RMB/month for first home loans
- Housing rent: 800-1,500 RMB/month based on city tier
- Elderly care: 3,000 RMB/month for single child; shared among siblings
- Infant care: 2,000 RMB/month per child under 3 years
Practical Tips
Special additional deduction information must be reported by employees on the "Personal Income Tax" APP. Enterprises obtain this data through the自然人电子税务局 (扣缴端) before withholding.
Cumulative预扣 Calculation
Since 2019, residents receiving wages and salaries use the cumulative预扣 method for预扣税 calculation.
Formula
Current Period预扣预缴 Tax = (Cumulative预扣预缴 Taxable Income ×预扣 Rate - Quick Deduction) - Already预扣预缴 Tax
Calculation Example
Employee with monthly salary of 20,000 RMB, monthly social insurance of 2,000 RMB, one child in primary school:
January Calculation
- Cumulative income: 20,000
- Cumulative deduction: 5,000
- Cumulative special deduction: 2,000
- Cumulative special additional: 2,000
- Cumulative预扣预缴 taxable income: 11,000
- Tax rate: 3%, quick deduction: 0
- 预扣预缴 tax: 330 RMB
Filing Procedures
Filing Deadline
Withholding agents must file the "Individual Income Tax预扣申报表" and complete full-month full-amount预扣申报 by the 15th day of the following month.
Filing Steps
- Personnel information collection: Initial setup of employee basic information
- Special additional deduction download: Obtain employee-reported deductions
- Wage/salary filing: Enter monthly income, deductions, etc.
- Tax payment: Complete tax payment online
Annual Reconciliation
Annual reconciliation is a system mandated by IIT law to help taxpayers fully enjoy reform benefits and handle refunds/payments lawfully.
Who Must File
Residents who received comprehensive income during a tax year must file annual reconciliation between March 1 and June 30 of the following year. However, those with annual comprehensive income not exceeding 120,000 RMB, or with additional tax not exceeding 400 RMB, are exempt.
Filing Methods
- Self-filing: Via "Personal Income Tax" APP or web portal
- Employer assistance: Authorize employer to handle (by April 30)
- Professional代理: Entrust professional institutions
Common Questions
Year-End Bonus Taxation
Per government regulations, year-end bonuses can choose:
- Separate calculation: Bonus ÷ 12 to determine rate, calculated separately
- Combined with comprehensive income: Added to annual income for combined calculation
Tax-saving tip: Lower-income employees (below rate跳档 points) benefit from separate calculation; higher-income employees benefit from combined calculation.
Layoff Compensation
Compensation within 3x the local average annual wage is exempt from IIT; amounts exceeding this are taxed separately using the comprehensive income tax rate table.
Important Reminder
Withholding agents who fail to file on time or fail to complete full-month full-amount预扣申报 face fines of up to 10,000 RMB under the Tax Collection and Management Law.
Summary
IIT withholding and remittance is an important daily function of enterprise HR and financial management. Enterprises should establish comprehensive IIT management systems, designate responsible personnel, stay updated on policy changes, and ensure lawful fulfillment of withholding obligations.
Huaxin Yongan's experienced finance team provides comprehensive HR/finance outsourcing services including wage accounting, IIT filing, and year-end bonus tax planning. Contact us for professional support.