Personal Income Tax Calculator

About the Personal Income Tax Calculator

The Personal Income Tax Calculator is an online tool for estimating individual income tax in China. It supports four calculation modes: monthly salary estimates, annual comprehensive income, the cumulative withholding method, and annual one-time bonuses. Enter income, social insurance and housing provident fund contributions, additional special deductions, and tax already withheld to estimate taxable income, the applicable tax rate, the quick deduction, estimated tax payable, and take-home income. The annual one-time bonus mode also compares the tax difference between separate taxation and combining the bonus with comprehensive income.

Supported Personal Income Tax Calculation Modes

1. Monthly Salary Tax Estimate

The monthly salary mode is designed for users who want a quick estimate of the income tax and take-home pay associated with their monthly salary. Enter your gross monthly income, monthly social insurance and housing provident fund contributions, and additional special deductions to estimate taxable income, the applicable tax rate, the quick deduction, and estimated monthly tax.

This mode assumes that annual income and all deductions remain the same each month. It estimates average monthly tax using the annual comprehensive income tax rates. It is suitable for quick calculations when income and deductions are relatively stable, but it is not equivalent to the actual cumulative withholding result shown on a payroll statement. To calculate the current month's withholding tax based on actual cumulative income, use the cumulative withholding method.

2. Annual Comprehensive Income Tax Calculation

The annual comprehensive income mode estimates the individual income tax payable on comprehensive income for a tax year. Enter annual income, annual social insurance and housing provident fund contributions, and eligible additional special deductions. The tool calculates annual taxable income after applying the annual basic deduction and other applicable deductions, then estimates annual tax using the annual comprehensive income tax rates.

This mode is suitable when annual income and deductions are known and you want to estimate your annual comprehensive income tax burden, take-home income, or compare different income and deduction scenarios. Actual annual tax reconciliation may also involve other comprehensive income, other legally prescribed deductions, tax already paid through withholding, and other taxable income adjustments.

3. Calculate This Month's Tax Using the Cumulative Withholding Method

The cumulative withholding method estimates the current month's income tax to be withheld during the withholding and prepayment stage for a resident individual's wages and salaries. Unlike a simple monthly estimate, this mode uses cumulative income, cumulative special deductions, cumulative additional special deductions, cumulative basic deductions, and cumulative tax already withheld from the beginning of the current tax year through the selected month.

To calculate the amount, cumulative income is first reduced by cumulative basic deductions, cumulative special deductions, cumulative additional special deductions, and other eligible deductions to obtain cumulative taxable income. The applicable cumulative withholding rate table is then used to calculate cumulative tax payable. Finally, tax already withheld in previous months is subtracted to determine the estimated amount to be withheld for the current month.

Enter the number of cumulative months, cumulative income, cumulative social insurance and housing provident fund contributions, cumulative additional special deductions, and cumulative tax already withheld. The cumulative month count must match the actual month in the current tax year, and cumulative amounts must include the actual figures through that month. If other legally deductible items apply, check and include them as appropriate.

4. Annual One-Time Bonus Tax Calculation

The annual one-time bonus mode estimates individual income tax on an annual one-time bonus that qualifies under the applicable tax policy. When separate taxation is selected, the bonus is divided by 12 to determine the applicable tax bracket and quick deduction using the monthly-equivalent tax brackets. The tax payable on the bonus and the after-tax bonus amount are then calculated.

The tool also lets you enter annual comprehensive income taxable income excluding the current bonus. It compares the incremental tax when the bonus is taxed separately with the additional tax when the bonus is combined with comprehensive income, helping you assess which method is expected to result in lower tax. For this comparison, use annual comprehensive income taxable income after the basic deduction, special deductions, additional special deductions, and other applicable items have already been deducted. Do not deduct them twice.

Separate taxation of an annual one-time bonus is subject to the applicable policy conditions. The current relevant policy has been extended through December 31, 2027. Check the official rules in force at the time of calculation for the applicable scope and any subsequent policy changes.

What Information Is Needed to Calculate Income Tax?

• Gross income: Salary, wages, or annual one-time bonus amounts subject to individual income tax.
• Social insurance and housing provident fund: Eligible special deductions for the employee's actual contributions to basic pension insurance, basic medical insurance, unemployment insurance, and the housing provident fund.
• Additional special deductions: Eligible deductions such as children's education, continuing education, mortgage interest, housing rent, support for elderly dependents, care for children under three, and qualifying serious illness medical expenses.
• Cumulative months: In cumulative withholding mode, the number of months elapsed in the current tax year through the month being calculated.
• Cumulative tax already withheld: Individual income tax actually withheld from the beginning of the current tax year through the previous month.
• Annual comprehensive income taxable income: For the year-end bonus tax comparison, the annual taxable income excluding the current bonus and after the relevant deductions have been applied.

Personal Income Tax Formulas

Monthly Salary Estimate with Equal Monthly Amounts

First calculate monthly taxable income. Then convert it to annual taxable income, determine the applicable tax rate and quick deduction using the annual comprehensive income tax rates, and convert the result into estimated monthly tax. This method assumes that monthly income and deductions remain unchanged throughout the year.

Monthly taxable income = max(0, monthly income - monthly social insurance and housing provident fund contributions - monthly additional special deductions - 5,000 CNY).

Estimated monthly tax = max(0, monthly taxable income × annual applicable tax rate - annual quick deduction ÷ 12).

Annual Comprehensive Income

Annual taxable income = max(0, annual comprehensive income - 60,000 CNY - annual special deductions - annual additional special deductions - other legally prescribed deductions).

Annual tax payable = max(0, annual taxable income × applicable tax rate - quick deduction).

Cumulative Withholding Method

Cumulative taxable income = max(0, cumulative income - 5,000 CNY × cumulative months - cumulative special deductions - cumulative additional special deductions - other legally prescribed cumulative deductions).

Cumulative tax payable = max(0, cumulative taxable income × withholding rate - quick deduction).

Current month's tax to be withheld = max(0, cumulative tax payable - cumulative tax already withheld).

These formulas explain the main calculation logic. Actual calculations must also account for the income category, deduction eligibility, and applicable tax rules.

Separate Taxation of an Annual One-Time Bonus

Monthly-equivalent bonus amount = annual one-time bonus ÷ 12.

Tax payable on bonus = max(0, annual one-time bonus × applicable tax rate - applicable quick deduction).

Comparison with Bonus Combined into Comprehensive Income

Annual taxable income after adding the bonus = annual comprehensive income taxable income excluding the bonus + annual one-time bonus.

Incremental tax from combining the bonus = annual tax payable after adding the bonus - annual tax payable before adding the bonus.

Compare the incremental tax from combining the bonus with the tax calculated under separate bonus taxation to determine which method is expected to result in lower tax under the current inputs. The actual choice should also take annual comprehensive income and other applicable rules into account.

Understanding Your Income Tax Calculation Results

After calculation, the tool displays the relevant tax amounts, take-home income, and calculation details for the selected mode. Different modes use different calculation bases, so interpret the results according to the mode shown.

• Tax payable: The estimated individual income tax due or to be withheld under the selected calculation mode.
• Taxable income: Income remaining after eligible basic, special, and additional special deductions and other applicable deductions. It is used to determine the tax rate.
• Applicable tax rate: The tax rate determined by the bracket containing the taxable income.
• Quick deduction: The quick deduction corresponding to the applicable tax bracket, used to simplify the calculation of progressive tax.
• Take-home income: A reference amount calculated from gross income, actual social insurance and housing provident fund deductions, and estimated individual income tax. Additional special deductions reduce taxable income; they are not cash deductions from wages.
• Effective tax rate: The ratio of estimated individual income tax to the relevant income amount. The denominator depends on the calculation basis of the selected mode.
• Cumulative tax already withheld: In cumulative withholding mode, the individual income tax already withheld before the month being calculated.
• Current month's tax to be withheld: The estimated amount still to be withheld for the current month after subtracting tax withheld in previous months from cumulative tax payable.

How Do Additional Special Deductions Affect Income Tax?

Additional special deductions are tax deductions available under China's individual income tax rules. Eligible deductions reduce taxable income and may therefore lower the amount of individual income tax payable. They are not cash expenses deducted from wages, so they should not be subtracted again as actual payroll deductions when calculating take-home income.

Common additional special deductions include children's education, continuing education, serious illness medical expenses, mortgage interest, housing rent, support for elderly dependents, and care for children under three. Deduction limits, eligibility requirements, and declaration procedures are subject to the current applicable policies.

Should You Tax a Year-End Bonus Separately or Combine It with Comprehensive Income?

An eligible annual one-time bonus may, subject to the applicable policy, be taxed separately or included in the year's comprehensive income. The two methods can produce different tax amounts. Which method is more tax-efficient depends on the bonus amount, other comprehensive income for the year, and applicable deductions.

For separate taxation, the applicable tax bracket is determined by dividing the bonus by 12. When the bonus is combined with comprehensive income, it is added to annual comprehensive income taxable income and the resulting increase in tax is calculated. For a meaningful comparison, focus on the incremental tax attributable to the bonus rather than directly comparing total annual comprehensive income tax with the separately calculated bonus tax.

Who Can Use This Personal Income Tax Calculator?

• Estimate individual income tax and take-home pay for monthly salary.
• Calculate this month's salary withholding tax using cumulative income and deductions.
• Check cumulative withholding tax amounts shown on a payroll statement.
• Estimate annual individual income tax on comprehensive income.
• Calculate tax on an annual one-time bonus under separate taxation.
• Compare the tax difference between separate bonus taxation and combining the bonus with comprehensive income.
• Analyze how social insurance, housing provident fund contributions, and additional special deductions affect income tax.
• Understand the individual income tax rates and quick deductions applicable at different income levels.

Frequently Asked Questions

Which calculation methods does this income tax calculator support?

It supports four modes: equal-monthly-amount salary estimates, annual comprehensive income, the cumulative withholding method, and annual one-time bonuses. The monthly mode provides a quick estimate, while the cumulative withholding mode estimates the current month's salary withholding tax using actual cumulative income and deductions.

What is the difference between a monthly salary estimate and the cumulative withholding method?

The monthly salary estimate assumes that income and deductions are the same every month throughout the year and estimates average monthly tax using the annual tax rates. The cumulative withholding method uses cumulative income, cumulative deductions, and tax already withheld from the beginning of the current tax year through the selected month to calculate the current month's withholding amount. It more closely follows the actual withholding and prepayment process for wages and salaries.

Why does the cumulative withholding method require cumulative tax already withheld?

The current month's withholding amount is calculated by subtracting tax already withheld in previous months from cumulative tax payable through the current month. Without the cumulative amount already withheld, the tool cannot accurately estimate how much tax remains to be withheld for the current month.

Are additional special deductions subtracted again from take-home salary?

No. Additional special deductions reduce taxable income for individual income tax purposes; they are not actual cash deductions from wages. When calculating take-home income, subtract actual social insurance and housing provident fund contributions and estimated individual income tax. Do not subtract additional special deductions again.

Does separate taxation of a year-end bonus always save tax?

No. The result depends on the bonus amount, other annual comprehensive income, and applicable deductions. Use the comparison feature to calculate both the tax on the separately taxed bonus and the incremental tax when it is combined with comprehensive income, then compare the results.

How long is the separate taxation policy for annual one-time bonuses valid?

The current policy has been extended through December 31, 2027. Eligibility conditions and the policy period may change. Always refer to the latest rules issued by the Ministry of Finance and the State Taxation Administration.

Why might take-home income differ from the amount deposited into my bank account?

This tool estimates a reference amount based on the salary income, social insurance and housing provident fund contributions, and estimated individual income tax you enter. Actual payroll deposits may also be affected by other deductions, benefits, allowances, retroactive payments, and the employer's compensation policies.

Can I use the calculated amount as my official tax filing amount?

This tool provides estimates based on user-entered data and applicable calculation rules. It is intended for personal income estimates, payroll checks, and tax-cost comparisons. It does not replace an individual income tax return, calculations in the official tax system, or review by the tax authorities. The actual tax amount is subject to lawful filing and confirmation by the tax authorities.

Usage Instructions and Tax Policy Notice

Before calculating, make sure that your income, cumulative month count, social insurance and housing provident fund contributions, additional special deductions, and cumulative tax already withheld are accurate. Different calculation modes use different tax bases. In particular, distinguish the equal-monthly-amount estimate from the cumulative withholding method. Individual income tax rates, deduction limits, bonus taxation policies, and other rules may change. Check the calculation against the official policies currently in force.