One of the most practical ways to reduce your Hong Kong profits tax bill is not to find loopholes — it is to claim every legitimate expense you are actually entitled to. Yet most Hong Kong SMEs underclaim, miss categories they did not know were deductible, or accidentally claim items that get rejected by the IRD.
Under Section 16 of the Inland Revenue Ordinance (Cap. 112), the rule is straightforward: an expense is deductible if it was incurred wholly and exclusively in the production of your assessable profits, and it is not capital in nature. Every dollar deducted from your gross revenue reduces the profits you are taxed on.
This guide covers what you can claim, what you cannot, what records the IRD expects, and how deductions affect your actual tax bill.
Commonly Deductible Expenses
The following categories are deductible for most Hong Kong SMEs, subject to the wholly and exclusively test:
Staff costs:
- Salaries, wages, bonuses, and commissions paid to employees
- Mandatory Provident Fund (MPF) contributions — deductible up to 15% of each employee's total emoluments for regular employer contributions. Special contributions (lump sum top-ups) are deductible at 20% per year spread evenly over 5 years.
- Staff welfare expenses directly related to employment (staff meals during working hours, work-related training, medical subsidies under company policy)
Rent and premises:
- Monthly rent or lease payments for office, warehouse, retail, or production space used exclusively for business
- Rates and government rent attributable to the business premises
- Repairs and maintenance of premises — but not improvements or renovations that enhance the property value (those are capital expenditure)
Utilities and operational costs:
- Electricity, water, gas, and internet used for business purposes
- Telephone and mobile bills — the business portion only; personal use must be apportioned out
- Cleaning, security, and building management fees for business premises
Professional and legal fees:
- Accounting, auditing, and bookkeeping fees
- Legal fees for routine business matters — drafting contracts, debt recovery, regulatory compliance
- Tax filing and advisory fees
- Company secretarial fees
Marketing and advertising:
- Digital advertising (Google, Facebook, Instagram, LinkedIn, Xiaohongshu)
- Website development and hosting costs that are revenue in nature (note: building a new website may be partly capital; ongoing maintenance and hosting is revenue)
- Marketing materials, brochures, packaging design for promotional purposes
- Trade fair and exhibition costs directly related to promoting the business
Business travel:
- Flights, accommodation, and transport for business trips
- Meals during business travel (reasonable amounts)
- Note: daily commuting between home and office is NOT deductible
Client entertainment:
- Partially deductible if directly linked to producing business profits — for example, a client dinner where business is discussed
- The IRD requires clear documentation: who attended, what was discussed, and how it relates to your income-producing activities. A receipt alone is not sufficient.
- Purely social or personal meals are not deductible even if clients are present
Bad debts:
- Specific bad debts that have become irrecoverable during the basis period, where the amount was previously included as trading income
- General provisions for doubtful debts are not deductible — only specific, identifiable bad debts that are proven to be irrecoverable
Interest expenses:
- Interest on business loans used to finance income-producing activities is deductible, subject to specific conditions under Section 16(1)(a) of the IRO
- Interest paid to overseas group companies is generally not deductible unless specific conditions are satisfied
- Interest on loans used for private or capital purposes is not deductible
Approved charitable donations:
- Donations to IRD-approved charities of a public character are deductible, subject to a minimum of HKD 100 per donation and a maximum of 35% of your adjusted assessable profits before donations for the year
Capital allowances — special deductions:
Instead of deducting capital expenditure in one year (which is not allowed), the IRD provides depreciation allowances:
- Computer hardware and software: 100% immediate write-off in the year of purchase — one of the most generous deductions available to SMEs
- Machinery and plant used in manufacturing: 100% immediate write-off
- Other plant and machinery: initial allowance of 60% in year of purchase, plus annual allowance of 10%, 20%, or 30% depending on the asset class
- Renovation and refurbishment of commercial premises: 20% per year over 5 years under Section 16F
R&D expenditure — enhanced deduction:
Qualifying R&D expenditure incurred in Hong Kong is eligible for an enhanced deduction under Section 16B of the IRO:
- 300% deduction on the first HKD 2,000,000 of qualifying expenditure
- 200% deduction on qualifying expenditure above HKD 2,000,000
This is one of the most generous R&D tax incentives in the region. If your business invests in product development, software engineering, or technology innovation conducted in Hong Kong, this deduction is worth actively planning around.
Expenses That Are NOT Deductible
Knowing what to exclude from your deduction claims is as important as knowing what to include. The following are commonly misclassified and will be disallowed — and added back — during tax computation:
Capital expenditure: the cost of buying fixed assets — equipment, machinery, computers, vehicles, leasehold improvements — cannot be deducted in full in the year of purchase. Capital allowances apply instead (see above). Confusing capital and revenue expenditure is the most frequent error in SME tax filings.
Private and domestic expenses: any cost that is personal in nature — home expenses not related to business use, personal meals, personal travel, personal clothing (unless it is a uniform or protective equipment required for work), personal telephone bills — are not deductible.
Profits tax itself: your Hong Kong profits tax bill is not deductible against profits tax. Similarly, foreign income taxes paid are generally not deductible as business expenses in Hong Kong.
Fines and penalties: government fines, IRD penalties, late filing charges, and court-ordered payments are not deductible under any circumstances.
General provisions: a general provision for bad debts or doubtful debts (as opposed to a specific provision for an identifiable irrecoverable debt) is not deductible. The IRD requires you to identify the specific debt and demonstrate it has become irrecoverable.
Pre-commencement expenses: costs incurred before your business commenced operations — such as incorporation fees, initial fit-out, or pre-launch marketing — are generally not deductible as revenue expenses (though some may qualify for capital allowances).
Director's remuneration if not genuinely arm's-length: if a director or shareholder pays themselves an unusually high salary that the IRD considers disproportionate to their role or the company's scale, the excess may be challenged. Reasonable salaries for working directors are deductible; excessive drawings disguised as salary are not.
Entertainment that lacks business substance: client meals or entertainment without documented business purpose will be disallowed if queried. The burden of proof is on you.
Record-Keeping Requirements
The IRD requires all businesses to retain accounting records and supporting documents for a minimum of seven years. This is not optional — failure to maintain adequate records is itself an offence under the IRO, and the absence of records means the IRD can disallow your deductions or issue an estimated assessment.
What you need to keep:
Receipts and invoices: for every business expense claimed, keep the original receipt or invoice showing the vendor name, date, description of goods or services, and amount. For entertainment claims, attach a brief note recording who was present and what business was discussed.
Bank statements: complete monthly bank statements for all business accounts, confirming actual payments were made for the expenses claimed.
Contracts and agreements: tenancy agreements, employment contracts, service agreements, and loan documents supporting major or recurring expenses.
Payroll records: detailed records of every payment to staff including salary slips, MPF contribution statements, and bonus approval documentation.
Fixed asset register: a schedule of all capital assets purchased, showing purchase date, cost, and the capital allowance claimed each year.
Travel and expense records: for business travel and entertainment, keep records of the date, destination, purpose, and attendees for each claim.
Both paper and digital records are acceptable, provided they are complete, accurate, and retrievable. Many SMEs find that cloud-based accounting software (such as Xero or QuickBooks) linked directly to their business bank accounts significantly reduces the effort of record-keeping and makes audit preparation far smoother.
How Deductions Affect Your Profits Tax
Understanding the mechanical impact of deductions on your actual tax bill helps you prioritise which expenses to track carefully.
The basic calculation:
Assessable profits = Gross revenue minus allowable deductions minus capital allowances
Profits tax = Assessable profits × applicable rate (8.25% on first HKD 2,000,000 for corporations; 16.5% above that)
A practical example:
Company A has HKD 3,000,000 in gross revenue and HKD 1,800,000 in deductible expenses (salaries, rent, marketing, professional fees, MPF). Assessable profits = HKD 1,200,000. Tax at 8.25% = HKD 99,000.
Company B has the same HKD 3,000,000 in revenue but only claims HKD 1,400,000 in deductions — missing HKD 400,000 of legitimate expenses (computer equipment at 100% write-off, R&D costs, client entertainment with proper documentation). Assessable profits = HKD 1,600,000. Tax at 8.25% = HKD 132,000.
The difference: HKD 33,000 in additional tax paid — simply from underclaiming legitimate deductions.
Loss carry-forward:
If your total deductible expenses exceed your revenue in a given year, creating an assessed loss, that loss carries forward indefinitely and offsets future profits from the same business. There is no time limit on loss carry-forward in Hong Kong — a loss from year one can offset profits in year five or year ten.
2025/26 one-off tax reduction:
The 2026/27 Budget proposed a 100% one-off reduction in profits tax for the year of assessment 2025/26, subject to a cap of HKD 3,000 per business. This has been confirmed by legislation passed and gazetted on 22 May 2026. The reduction is applied automatically by the IRD to your assessment — you do not need to apply separately. File your return as normal, claim all your deductions correctly, and the reduction will be reflected in your Notice of Assessment.
Need Help Claiming Every Deduction You Are Entitled To?
The difference between a well-prepared set of accounts and a rushed filing is often thousands of dollars in legitimately missed deductions. SMEBro helps Hong Kong SMEs set up clean bookkeeping from day one, so nothing is missed at year-end.
Our services include:
- Accounting and bookkeeping — organised records that capture every deductible expense
- Statutory audit from HKD 1,999/year — by a licensed CPA
- Profits Tax Return preparation and filing — tax computation, deduction optimisation, supplementary forms
- Tax problem handling — IRD queries, estimated assessments, penalty reduction
