10 Legal Ways to Reduce Your Tax Bill: An Annual Checklist for Professionals

For the tax year of assessment 2025/26, Hong Kong’s Inland Revenue Department (IRD) has signalled a renewed focus on self-employed professionals and small business owners, particularly those with mixed income streams from both employment and consultancy work. The 2025-26 Budget, delivered in February 2025, confirmed a one-off reduction in salaries tax and tax under personal assessment of 100% of the tax payable, capped at HKD 3,000, for the year of assessment 2024/25. This is a notable shift from the previous year’s HKD 3,000 cap, indicating a tighter fiscal environment. Simultaneously, the IRD’s increased data-matching capabilities, including enhanced reporting from financial institutions under the Common Reporting Standard (CRS), mean that under-reported income or over-claimed deductions are now more likely to trigger an enquiry. For the 30-55 year old professional—whether a salaried executive, a sole proprietor, or a director of a small limited company—the window for purely reactive tax planning has closed. The strategic window is now proactive, year-round management of one’s tax profile. This checklist outlines ten legally robust methods to reduce your tax liability for the 2025/26 year of assessment, focusing on the specific allowances, deductions, and structural choices available under the Inland Revenue Ordinance (Cap. 112).

Maximising Personal Allowances and Deductions

The most direct route to reducing your salaries tax liability is to ensure you are claiming every allowance and deduction to which you are legally entitled. The IRD’s own guide (IRSD 112) lists the full inventory, but several key items are frequently under-utilised by professionals.

1. Claiming the Full Home Loan Interest Deduction

For the year of assessment 2025/26, a taxpayer who is the owner-occupier of a domestic property in Hong Kong can claim a deduction for interest paid on a mortgage used to acquire the property. The maximum deduction is HKD 100,000 per year of assessment, and the claim period is for 20 years of assessment, regardless of whether the property changes hands. A key strategic point: this deduction is only available if the property is used as your principal place of residence. If you rent out the property and live elsewhere, the interest is not deductible under salaries tax. However, if you have a mortgage on your main home, ensure your spouse, if they are the co-owner and also a taxpayer, claims their proportionate share. The deduction is not transferable, but it can be split between co-owners in proportion to their beneficial interests.

2. The Voluntary Health Insurance Scheme (VHIS) Deduction

A deduction is available for premiums paid under a certified VHIS policy. For the year of assessment 2025/26, the maximum deduction per insured person is HKD 8,000. This is a per-person cap, not a per-taxpayer cap. A professional can claim the deduction for premiums paid for themselves, their spouse, and their dependents (including parents, grandparents, children, and siblings). The total deduction can be substantial. For a married couple with two children and two elderly parents, each covered by a VHIS policy, the combined deduction can reach HKD 48,000 (6 persons x HKD 8,000), provided the taxpayer is the policyholder and pays the premiums. The policy must be in the name of the person claiming the deduction, and the premiums must be paid directly to the insurer.

3. Mandatory Provident Fund (MPF) Voluntary Contributions

While mandatory MPF contributions by an employee are not deductible (as they are part of the assessable income), voluntary contributions (Voluntary Contributions or Tax Deductible Voluntary Contributions, TVCs) are. Under the MPF System, an employee can make TVCs of up to HKD 60,000 per year of assessment, which are fully deductible from salaries tax. This is a powerful tool for high-income professionals. The deduction is available for contributions made between 1 April and 31 March of the year of assessment. The key constraint: the total of mandatory and voluntary contributions cannot exceed the statutory maximum of HKD 1.2 million per annum for the purposes of the MPF Scheme. For a professional earning HKD 1.5 million per annum, a HKD 60,000 TVC yields a tax saving of up to HKD 10,200 (at the standard rate of 17%) or more depending on their marginal tax rate under the progressive scale.

Structuring Your Income and Business

For professionals who are self-employed or operate through a limited company, the structure of how you earn and receive income has a direct impact on your tax liability. The territorial source principle of Hong Kong taxation remains a critical advantage.

4. The Sole Proprietorship vs. Limited Company Decision

A self-employed professional (e.g., a lawyer, architect, consultant) can operate as a sole proprietor or through a private limited company. The tax implications differ significantly. As a sole proprietor, profits are subject to profits tax at the two-tiered rates: HKD 2 million of assessable profits at 7.5%, and the remainder at 15%. The sole proprietor is also personally liable for the full amount of tax. Through a limited company, the first HKD 2 million of assessable profits are taxed at 8.25%, and the remainder at 16.5%. The company pays the tax. The professional can then draw a salary (subject to salaries tax and MPF) or dividends (not subject to tax in Hong Kong). The optimal structure depends on the level of profit and the need for capital retention. For a professional earning HKD 1.5 million in net profits, the company structure saves approximately HKD 11,250 in tax compared to a sole proprietorship, before considering salary and dividend planning. This is a structural decision that should be made at the start of the tax year.

5. Claiming Deductible Business Expenses (Self-Employed)

A self-employed professional can deduct all expenses wholly, exclusively, and necessarily incurred in the production of chargeable profits. This is a broader scope than the deductions available to an employee. Key deductible items include:

• Office rent and utilities: If you rent a dedicated office space, the full amount is deductible. If you work from home, a portion of your home expenses (e.g., mortgage interest, rates, utilities) can be apportioned and claimed as a business expense. The IRD generally accepts a reasonable apportionment based on floor area or time used.
• Professional subscriptions and continuing education: Fees for professional bodies, seminars, and courses that maintain or improve skills directly related to your profession are deductible.
• Travel and entertainment: Costs of business travel (airfare, hotel, meals) and entertainment of clients (with proper receipts and records of business purpose) are deductible.
• Motor vehicle expenses: If a car is used for business, the proportion of running costs (fuel, insurance, maintenance, depreciation) is deductible. The IRD looks for a logbook to substantiate business mileage.

6. Utilising the Personal Assessment Election

A professional with multiple income sources—salaries tax, profits tax from a sole proprietorship, and property tax from a rental property—can elect for Personal Assessment under Section 41 of the IRO. This aggregates all income and allows for the deduction of all allowances (e.g., married person’s allowance, child allowance, dependent parent allowance) against the total income. It also allows for the offsetting of a business loss against other income. For example, if a professional incurs a loss from a sole proprietorship in a given year, that loss can be set against their salary income, reducing their overall tax bill. The election must be made in writing to the IRD within the specified time limit (generally within the tax return filing period).

Advanced Planning for High Earners

For professionals with total income exceeding HKD 1.5 million or those with significant investment portfolios, more sophisticated planning is required. The interaction between salaries tax and profits tax, and the use of specific exemptions, becomes critical.

7. The Offshore Claim for Professional Services

A professional whose services are performed wholly outside Hong Kong can claim that the income is not subject to Hong Kong profits tax. This is a pure territorial claim. For example, a management consultant who spends 100% of their working days in Singapore or mainland China, advising clients there, can argue that their fees are sourced outside Hong Kong. The IRD applies a rigorous test, examining where the contract was made, where the services were performed, and where the payment was received. A successful claim requires meticulous record-keeping: travel itineraries, client contracts showing the place of performance, and bank statements showing the receipt of funds. This is a high-risk area, and the IRD has successfully challenged many such claims in the District Court and Court of Appeal (e.g., CIR v. Hang Seng Bank Ltd (1991) 3 HKTC 351). It is not a strategy for the faint-hearted.

8. Capital Gains vs. Revenue Profits

Hong Kong does not tax capital gains. For a professional who trades in securities or property, the distinction between a capital gain (not taxable) and a revenue profit (taxable as profits tax) is critical. The IRD and the courts apply a series of badges of trade, including the frequency of transactions, the subject matter, the length of ownership, the intention at acquisition, and the method of financing. A professional who buys and sells shares or property as a sideline can structure their activities to fall within the capital gains exemption. The key is to demonstrate a long-term investment intent, not a trading motive. A single transaction can be a capital gain if it is an isolated investment. A series of transactions, especially if financed with debt and held for short periods, is likely to be treated as a trade. This is a grey area, and professional advice is essential.

9. The Concessionary Tax Rate for Intellectual Property (IP)

For professionals who generate income from patents, copyrights, or trademarks (e.g., a software developer, a writer, a designer), the profits from the licensing or sale of qualifying IP can be taxed at a concessionary rate of 5% under the Intellectual Property (IP) Regime introduced in 2018. This is a significant reduction from the standard 16.5% corporate rate. To qualify, the IP must be a “qualifying IP asset” (patent, copyrighted software, or a qualifying IP right) and the taxpayer must have performed the “qualifying R&D activities” in Hong Kong. The regime is designed to align with the OECD’s modified nexus approach. A professional who develops a software application and licenses it to a company can structure the ownership of the IP and the licensing income to benefit from this 5% rate. This requires careful legal and tax structuring, but the tax saving is substantial.

10. The Use of a Trust for Succession and Income Splitting

A high-net-worth professional can use a trust to hold assets and split income among family members. A Hong Kong trust that is not resident in Hong Kong (i.e., its central management and control is outside Hong Kong) is not subject to Hong Kong profits tax on its income. The trust can receive investment income, rental income, or business profits and distribute them to beneficiaries (e.g., a non-working spouse or adult children) who may be in lower tax brackets. This is a sophisticated planning tool used by family offices. The trust deed must be carefully drafted to ensure the settlor (the professional) does not retain too much control, which could cause the IRD to treat the trust’s income as the settlor’s income under the anti-avoidance provisions (Section 61A of the IRO). The trust must be a genuine arrangement, not a sham.

2025/26 Actionable Takeaways

• Maximise the VHIS deduction: Review your family’s insurance policies and ensure all eligible family members are covered by a VHIS policy in your name, claiming up to HKD 8,000 per person.
• Consider a TVC to your MPF account: Make a voluntary contribution of up to HKD 60,000 before 31 March 2026 to secure a full deduction against your salaries tax.
• Review your business structure: If you are a self-employed professional earning over HKD 1.2 million in net profits, evaluate incorporating a limited company to benefit from the lower two-tiered profits tax rate on the first HKD 2 million of profits.
• Keep a contemporaneous travel log: If you perform services outside Hong Kong, maintain a detailed diary of dates, locations, and client meetings to support a potential offshore claim.
• Elect for Personal Assessment: If you have multiple income sources, file a Personal Assessment election to claim all allowances against your total income.

Disclaimer: 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.