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Profit Tax Computation

Detailed breakdown of your Hong Kong profit tax calculation.

Hong KongProfits TaxTax Period: April 1 – March 31 (Assessment Year)
Statutory source alignment verified for April 1 – March 31 (Assessment Year) by Finsiva Research & Methodology (Statutory Research)
Statutory Rule & Definition• Verified for April 1 – March 31 (Assessment Year)

Hong Kong Profit Tax Computation: Under statutory guidelines established by Inland Revenue Department (IRD), detailed breakdown of your hong kong profit tax calculation. Calculations for April 1 – March 31 (Assessment Year) determine precise marginal brackets, statutory rate percentages, allowable deductions, and net post-tax retained amounts.

Calculator Input

Your calculation results will appear here.

Enter your details above and click Calculate to see your estimated tax.

Statutory Profit Tax Computation & Capital Allowances

The Hong Kong Profit Tax Computation Calculator generates a statutory corporate and commercial tax calculation breakdown under the two-tiered regime. Computing the initial 8.25% tier (first HK$2M) and standard 16.5% tier, it reconciles accounting profits with tax adjustments, commercial depreciation allowances, and Section 16 allowable deductions.

In Hong Kong, accounting profits shown on audited financial statements do not equate to taxable profit. Under Section 16 and Section 17 of the Inland Revenue Ordinance (Cap. 112), accounting depreciation must be added back and replaced with statutory Depreciation Allowances under Part VI. Non-deductible expenses (such as capital improvements and non-business outgoings) are disallowed, while non-taxable capital gains and offshore-sourced profits are excluded to arrive at final Assessable Profit.

Corporate Profit Tax Reconciliation Bridge (Form BIR51) Audited Profit Net Accounting Profit per CPA Add Backs + Accounting Depr + Non-Deductibles Tax Deductions - Capital Allowances - Offshore Profits Two Tiers 8.25% ≤ $2M 16.5% Balance

Example Calculation

HK$1,500,000 Assessable Profits, Unincorporated, 2025/26

Assessable Profits:1500000
Business Type:unincorporated
Year of Assessment:2025/26

Result

Assessable Profits:HK$1,500,000.00
Profits Tax:HK$225,000.00
Effective Rate:15%

Unincorporated rate 15% on full amount.

Calculation Methodology

Profit Tax Computation

Corporations: 8.25% on first $2M, remainder 16.5%. Unincorporated: 15%.

How profits tax is calculated

How to Use the Profit Tax Computation Breakdown

Understanding Results

Taxable Income: Income subject to tax after deductions.
Tax Amount: Total tax liability.
Effective Rate: Tax as a percentage of your total income.
Take-Home Pay: Income after tax.

Tax Adjustment & Capital Allowances Formula

Statutory reconciliation bridge required for Form BIR51 submission:

Assessable Profits = Net Accounting Profit + Non-Allowable Expenses + Book Depreciation - Tax Depreciation Allowances - Offshore Profits - Capital Gains

Tax Depreciation on Plant & Machinery (Part VI IRO):

Initial Allowance: 60% of qualifying cost in year of acquisition

Annual Allowance: 10%, 20%, or 30% reducing-balance on pooling balance

Two-Tiered Calculation: (First HK$2,000,000 × 8.25%) + (Excess × 16.50%)

Example Calculation

Let's say you have an annual income of HK$300,000.

After applying the Hong Kong profits tax rules and deductions, your estimated tax liability and take-home pay will be calculated automatically by the tool above. Try entering your own values to see personalized results.

Profit Tax Computation Benchmark Scenarios

Scenario A: Boutique Firm with IT Equipment (HK$1,200,000 Profit)

Input: Accounting profit HK$1,300,000; bought HK$100,000 computers.
Section 16G Write-Off: 100% full immediate deduction on IT hardware (-HK$100k).
Assessable Profit: HK$1,200,000.
Tax @ 8.25%: HK$99,000.

Scenario B: Trading Company with Plant Machinery (HK$4,500,000 Profit)

Input: Assessable profit after capital allowances HK$4,500,000.
Tier 1 Tax: HK$2,000,000 × 8.25% = HK$165,000.
Tier 2 Tax: HK$2,500,000 × 16.5% = HK$412,500.
Total Profits Tax: HK$577,500 (Effective Rate: 12.83%).

Scenario C: Regional Group with Offshore Sourcing Claim (HK$8,000,000 Total Profit)

Input: HK$8M profit, HK$3M substantiated offshore profit.
Onshore Assessable Profit: HK$5,000,000.
Two-Tiered Tax: (HK$2M × 8.25%) + (HK$3M × 16.5%) = HK$660,000.
Offshore Savings: Saves HK$495,000 under territorial principle.

Audited Accounts & IRD Penalties

Statutory requirements under Companies Ordinance and IRO:

  • Certified CPA Audit: Every Hong Kong incorporated company must submit audited financial statements and tax computations signed by an independent CPA with Form BIR51.
  • Commercial Building Allowances (CBA): Capital expenditure on commercial buildings qualifies for an annual allowance of 4% of construction cost under Section 33A.
  • Late Filing Penalties: Late return submission results in compound penal tax under Section 80(2) or court prosecution.

Tax Slabs

Hong Kong Profits Tax slabs vary based on income level and taxpayer profile. Use this calculator to determine your exact liability under current rules.

Common Mistakes

  • Not updating inputs for the correct tax year.
  • Using incorrect residency or employment status.
  • Forgetting to account for all income sources.
  • Not considering eligible deductions and reliefs.

Frequently Asked Questions

Why must accounting depreciation be added back in profits tax computations?
The IRO does not recognize commercial book depreciation rates. Book depreciation is added back and replaced by statutory initial and annual capital allowances under Part VI.
What is the Initial Allowance for plant and machinery?
Section 37 grants an immediate Initial Allowance equal to 60% of the qualifying capital expenditure on plant and machinery in the year of purchase.
Can computer hardware and software be written off immediately?
Yes. Section 16G allows a 100% immediate full write-off for qualifying computer hardware and software in the Year of Assessment in which it was acquired.
What expenses are strictly disallowed under Section 17?
Disallowed expenses include domestic or private expenses, capital expenditure, income taxes paid, and expenses not incurred in the production of assessable profits.
How are offshore profits deducted on the tax computation sheet?
Offshore profits substantiated under the territorial principle are deducted from accounting profits as non-assessable income, subject to FSIE compliance rules.
Can commercial losses be used to reduce personal salaries tax?
Only if the sole proprietor or partner elects for Personal Assessment (PA), which allows business losses to offset employment and rental income.

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Related Country

Official Government Resources

Always verify tax calculations with the latest information from official government sources.

Educational Disclaimer

This calculator is provided for informational and educational purposes only. It does not constitute legal, financial, or tax advice. Tax laws are complex and subject to change. Always consult a qualified tax professional or your local tax authority for advice specific to your circumstances.

Finsiva Financial Editorial Board
Finsiva Financial Editorial Board
Financial Content & Tax Research

Finsiva researches tax rules and calculation parameters using official government sources and reviews financial content for accuracy, methodology, and statutory changes.