Every year between October and April, millions of taxpayers in Hong Kong receive the familiar green envelope from the Inland Revenue Department (IRD). Inside is your Tax Demand Note, formally known as a tax assessment.
For many people, the instinct is simple: check the amount, pay, move on. In practice, that approach often leads to overpaying tax, missing deductions, or locking yourself into an incorrect assessment. Before you pay, here’s what you should understand and review.
In this guide:
What is a Hong Kong Tax Demand Note?
A Tax Demand Note sets out:
- Final tax payable for the previous year of assessment, and
- Provisional tax for the upcoming year, calculated based on last year’s income.
The total amount is usually split into two instalments, commonly due in January and April.
While the document looks final, it is not always correct, and in many cases, it can still be reviewed, adjusted, or challenged.
How the IRD Calculates Your Assessment
In most cases, the IRD issues your assessment based on the tax return you filed earlier in the year. However, discrepancies often arise under two common scenarios:
1. Estimated Assessments
If you failed to submit a tax return, the IRD may issue an Estimated Assessment. These are often significantly higher than the actual tax payable.
Important: You generally cannot object to an estimated amount directly. The correct approach is to file the outstanding tax return so the assessment can be revised.
2. Additional Assessments
The IRD has the authority to issue additional assessments (generally within six years) if it believes tax was underpaid.
What You Should Check Immediately
Do not assume the figures are correct. Once you receive the note, you have a limited window to review it properly.
Key items to verify:
- Income figures: Do they match your Employer’s Return or actual business income?
- Deductions: Were MPF contributions, charitable donations, and home loan interest correctly applied?
- Allowances: Are you receiving all entitled allowances, such as:
- Married Person’s Allowance
- Child Allowance
- Dependent Parent or Grandparent Allowance
- Tax reductions: Has any applicable one-off government tax relief been included?
Many taxpayers miss legitimate deductions simply because they are unaware of them, especially after changes in personal or employment circumstances.
Understanding Final Tax vs. Provisional Tax
Your Tax Demand Note usually combines two separate obligations:
- Final Tax: The balance payable for the year just ended.
- Provisional Tax: An advance payment for the current year, estimated using last year’s income.
Typical instalment structure:
- January instalment: Final tax + 75% of provisional tax
- April instalment: Remaining 25% of provisional tax
This structure often creates cash-flow pressure, especially if your income has fallen.
Income Dropped? You May Apply for a Provisional Tax Holdover
If your income for the current year is expected to be at least 10% lower than the previous year, or if you have ceased employment or business, you may apply for a holdover of provisional tax.
Key points to note:
- Your projected income must generally be below 90% of the prior year
- Applications must be submitted:
- 28 days before the payment due date, or
- 14 days after the issue date of the demand note (whichever is later)
Poorly prepared holdover applications are often rejected. Clear projections and proper justification matter.
What If the Assessment Is Wrong?
If you disagree with the assessment, you must file a formal objection.
Objection rules:
- Deadline: Within one month from the date of the assessment
- Grounds: Must be specific, technical, and supported by tax law
- Late objections: Rarely accepted unless there is a valid reason (e.g. illness or absence from Hong Kong)
A simple statement such as “the tax is too high” is not a valid objection. Once the deadline passes without a proper objection, the assessment becomes final and conclusive.
Payment Methods and Late Payment Consequences
If the assessment is correct and no objection or holdover applies, payment must be made on time.
Payment options include:
- FPS (QR code on the demand note)
- PPS
- ATM or internet banking
- e-Cheque
Late payment penalties:
- Immediate 5% surcharge after the due date
- Additional 10% surcharge if unpaid after six months (calculated on the total outstanding amount)
In cases of financial difficulty, instalment payment plans may be requested, though surcharges typically still apply.
Don’t Pay First. Review First.
A Tax Demand Note is not just a bill. It is also a final checkpoint to ensure:
- The calculation is correct
- You are not overpaying provisional tax
- You are not missing deductions or allowances
- You are taking action within statutory deadlines
Mistakes at this stage can be costly and irreversible.
How Monx Can Help
At Monx, we support individuals, founders, and businesses with practical, compliant tax reviews, including:
- Tax Demand Note reviews
- Objection drafting and submission
- Provisional tax holdover applications
- Ongoing Hong Kong tax advisory and planning
If you’ve received a Tax Demand Note and are unsure whether the amount is correct, or whether action should be taken before payment, our team can guide you clearly and efficiently.
