Filling Out the Personal Assessment Return: A Walkthrough with Common Pitfalls

For the tax year of assessment 2024/25, which ends on 31 March 2025, the Inland Revenue Department (IRD) is expected to issue Personal Assessment returns to eligible taxpayers starting in April 2025. A significant shift is that the IRD has been progressively digitising its processes, with the 2024/25 tax return cycle seeing a further push towards eTAX filing, including mandatory electronic filing for certain professional firms and a reduction in paper return issuance. This walkthrough addresses the specific mechanics of the Personal Assessment (PA) return (BIR60 form and its schedules), a tool often misunderstood by Hong Kong’s middle-class professionals and small business owners. Many taxpayers who are not in a straightforward salary-only situation—such as those with a mix of salaries tax, property tax, and small profits tax—fail to elect for PA, missing out on a potential tax saving. This article provides a line-by-line guide to completing the PA return correctly, highlighting the most common pitfalls that lead to IRD queries or missed deductions.

Why Personal Assessment Exists and Who Should Elect

The Personal Assessment regime under the Inland Revenue Ordinance (Cap. 112) is not a separate tax but an election allowing an individual to aggregate all assessable income—salaries tax, property tax, and profits tax—into a single net chargeable income. This is governed by Section 41 of the IRO. The primary benefit is that a single set of allowances, deductions, and the progressive marginal tax rates are applied to the total, rather than each income stream being taxed separately under its own regime (e.g., property tax at a flat 15% standard rate). For a taxpayer whose combined marginal rate from separate assessments is higher than the standard rate applied to total income under PA, the election can yield a lower overall tax liability. The election must be made in writing on the tax return (BIR60) or by a separate notice within the specified time limit, typically one month from the date of the return.

The Standard Rate Trap

A common misconception is that Personal Assessment is always beneficial. The IRD will compute tax under PA using the progressive rates (2%, 6%, 10%, 17% on net chargeable income up to the standard rate threshold) and then compare it to the standard rate (currently 15% for 2024/25) applied to the total net assessable income. The taxpayer pays the lower of the two. For a high-income earner with significant property or profits income, the standard rate cap under PA can be higher than the flat 15% under separate property tax, meaning PA might actually increase the tax on that property income. The decision hinges on whether the marginal benefit of aggregating allowances outweighs the loss of the lower flat rate.

Who Should Consider the Election

The election is most advantageous for a taxpayer who:

• Has a single property generating rental income and is claiming mortgage interest deductions (which are only available under PA, not under the flat-rate property tax).
• Has a small sole-proprietorship business with losses in a particular year, which can be offset against salary or property income under PA.
• Has total income that is below the standard rate threshold, meaning the progressive rates will apply, and allowances can be fully utilised.

Completing Part 1: Personal Particulars and Election

The BIR60 form begins with personal details. Accuracy here is critical, as errors can delay processing or trigger a review. The taxpayer’s Hong Kong Identity Card number, correspondence address, and marital status as of 31 March of the year of assessment must be stated. Marital status determines whether a joint election for Personal Assessment is possible (Section 42 of the IRO). If married and not living apart, a joint election must be made by both spouses, and the total income is aggregated. A common pitfall is failing to tick the correct box in Part 1 to indicate the election for PA. This is a separate tick box from the main return; it is not automatic.

Marital Status and Joint Election

If married, the taxpayer must decide whether to elect jointly. The IRD’s practice is that if one spouse has no income, a joint election can still be beneficial because the unused allowances of the non-income spouse (e.g., the married person’s allowance) can be transferred to the working spouse. However, if both spouses have significant income, a joint election may push total income into the standard rate band, eliminating the benefit. The decision requires a calculation of the combined tax under separate assessment versus joint PA. The IRD provides a worksheet in the guide notes, but many taxpayers simply tick the box without running the numbers.

The Election Deadline and Withdrawal

The election must be made on or before the due date of the return. If the return is filed late, the IRD may treat the election as invalid. There is no statutory provision for withdrawing an election after the return is filed, though the IRD may allow it in exceptional circumstances. A taxpayer who realises a mistake should write to the assessor immediately, explaining the error and requesting a withdrawal. The IRD’s practice is generally to allow withdrawal if the return has not yet been assessed.

Completing Part 4: Computing the Personal Assessment

Part 4 is the core of the form, where the taxpayer aggregates income from all sources. The IRD provides a self-computation worksheet. The key lines are:

• Total assessable income from salaries tax (from Part 4.1), property tax (Part 4.2), and profits tax (Part 4.3).
• Total allowable deductions under each category (e.g., MPF contributions, charitable donations, self-education expenses).
• Net assessable income.
• Total allowances (e.g., basic allowance of HKD 132,000 for 2024/25, married person’s allowance of HKD 264,000, child allowance of HKD 130,000 per child).
• Net chargeable income.
• Tax at progressive rates.
• Standard rate tax (15% of net assessable income).
• Tax payable (the lower of the two).

The Property Tax Deduction Pitfall

A major pitfall arises with property tax. Under the separate property tax regime, the standard deduction is 20% of the net assessable value for repairs and outgoings. Under Personal Assessment, the taxpayer can instead claim actual expenses, including mortgage interest. Many taxpayers automatically claim the 20% standard deduction on the property tax schedule (IR 937) and then also try to claim mortgage interest in the PA computation. The IRD will not allow a double deduction. The taxpayer must choose one method for the property income within the PA calculation. The correct approach is to either:

• Use the 20% standard deduction on the property tax schedule and then report the net assessable value in Part 4.2 of the PA return. In this case, no mortgage interest is deductible.
• Or, elect to claim actual expenses, including mortgage interest, on the property tax schedule, and then report the reduced net assessable value in Part 4.2. This is usually more beneficial if mortgage interest is high.

The Loss Offset Mechanism

If a sole proprietorship generates a loss, that loss can be offset against salary or property income under PA. This is a key advantage. The loss is reported in Part 4.3. The IRD will verify the loss against the profits tax return (BIR52) filed by the taxpayer. A common error is trying to offset a loss from a limited company, which is not permitted under PA. Only unincorporated business losses are eligible. The loss can be carried forward indefinitely under Section 19C of the IRO, but under PA, it can only be offset against the same taxpayer’s other income in the same year.

Completing Schedules and Supporting Documents

The BIR60 return requires the taxpayer to attach supporting schedules for each income type. For salaries tax, the employer’s return (IR 56B) is the primary source. For property tax, the IR 937 schedule must be completed. For profits tax, a copy of the BIR52 and financial statements must be attached. The IRD will cross-reference these schedules against the main return. A mismatch, such as a different rental income figure on the IR 937 versus the PA return, will trigger a query.

The MPF Voluntary Contribution Trap

Mandatory Provident Fund (MPF) contributions are deductible up to HKD 18,000 per year for 2024/25 for mandatory contributions. Voluntary contributions (tax-deductible voluntary contributions, or TVCs) are also deductible up to the same limit, but the total deduction for all MPF contributions cannot exceed HKD 18,000. Many taxpayers mistakenly claim both mandatory and voluntary contributions as separate deductions, leading to a disallowance. The IRD’s practice is to allow the deduction for the total of mandatory and TVCs, capped at HKD 18,000. The taxpayer should report the total contributions, and the system will apply the cap.

Charitable Donations

Charitable donations of HKD 100 or more to approved charities are deductible, capped at 35% of assessable income (Sections 16D and 26C of the IRO). A common pitfall is claiming donations made to organisations that are not approved by the IRD. The IRD maintains a list of approved charities. The taxpayer should verify the charity’s status before claiming. Another pitfall is claiming donations in a year when the taxpayer’s total income is low, as the 35% cap is applied to net assessable income, not net chargeable income. If the income is low, the cap may be small, and the donation may not generate a full benefit.

Common Pitfalls and IRD Scrutiny

The IRD’s examination cycle for Personal Assessment returns typically runs 12-18 months from the date of filing. The department has a dedicated unit that reviews returns with unusual features. The most common triggers for a review are:

• A large loss offset from a business.
• A significant increase in mortgage interest deductions.
• A claim for a dependent relative allowance without proper supporting documents.
• A mismatch between the income reported on the PA return and the information from third parties (e.g., employers, tenants, banks).

The Dependent Relative Allowance Trap

The dependent relative allowance (HKD 38,000 for 2024/25) is available for a parent or grandparent who is aged 60 or over, or who is eligible to claim the Government’s Disability Allowance. The relative must be ordinarily resident in Hong Kong. A common pitfall is claiming the allowance for a parent who lives in Mainland China. The IRD’s practice is to disallow the claim unless the parent is physically present in Hong Kong for a significant period during the year. The taxpayer must provide the parent’s Hong Kong address and evidence of residence, such as a rental agreement or utility bill. The IRD may also request a declaration from the parent.

The Self-Education Expenses Trap

Self-education expenses are deductible under Section 12(1)(f) of the IRO, capped at HKD 100,000 for 2024/25. The expense must be for a course or examination that is prescribed by the IRD. A common pitfall is claiming expenses for a course that does not lead to a recognised qualification, such as a hobby class. The IRD’s published list of prescribed courses includes those offered by the University of Hong Kong, the Hong Kong Polytechnic University, and other recognised institutions. The taxpayer should check the course code against the list before claiming. Another pitfall is claiming expenses for a course that is fully reimbursed by the employer. The IRD will disallow the deduction if the employer has already paid for the course.

Actionable Takeaways

1. Run the numbers before electing: Calculate your tax under separate assessments (salaries, property, profits) and under Personal Assessment to confirm that the election actually reduces your total liability.
2. Verify all allowances and deductions against the IRD’s published rates and lists: Double-check the HKD amounts for allowances (e.g., basic allowance of HKD 132,000 for 2024/25) and ensure that charities and courses are on the approved lists.
3. Attach all required schedules and supporting documents: The IRD will cross-reference your BIR60 against your IR 56B, IR 937, and BIR52; any mismatch will trigger a query.
4. Claim mortgage interest only under PA, not under the property tax standard deduction: Choose the method that gives the lower net assessable value for your property income, and do not attempt a double deduction.
5. File on time and keep a copy of the return: The election for Personal Assessment must be made on or before the due date; late filing may invalidate the election.

本文不構成稅務建議。涉及個人稅務情況請諮詢持牌會計師或稅務師。 This does not constitute tax advice. Consult a licensed CPA or tax advisor for your specific situation.