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Accounting and tax ยท Guide

Tax-deductible expenses: what counts

The general rule for deductions in Hong Kong, common deductible and non-deductible items, and special allowances for capital spending.

By DBMS GlobalLast reviewed: 18 October 2026

The answer first

Under Hong Kong profits tax, a business can generally deduct outgoings and expenses incurred in the production of its chargeable profits. Expenses that are private, capital in nature, or unconnected with producing taxable profits are not deductible, unless a specific provision allows them. Good records are what turn a deduction claimed into a deduction accepted.

At a glance

The test
Incurred in producing profits taxable in Hong Kong
Capital spending
Not deducted directly; allowances and specific deductions apply
Not deductible
Private expenses; expenses relating to offshore (non-taxable) profits
Essential
A receipt and a note of business purpose

Usually deductible

ExpenseNotes
Rent and rates for business premisesIncluding management fees
Salaries, MPF and staff benefitsEmployer contributions to recognised schemes, within limits
Professional feesAccounting, audit, company secretarial, legal fees of a revenue nature
Marketing and advertisingIncluding digital marketing
Travel and entertainmentIf for business purposes and properly documented
InterestSubject to specific conditions on the borrowing and the lender
Bad debtsProven bad trade debts previously included as income
RepairsRevenue repairs, not improvements

Usually not deductible

  • Private or domestic expenses of owners and directors.
  • Capital expenditure (except through specific allowances or deductions).
  • Expenses relating to non-taxable income, such as offshore profits.
  • Tax payments and most fines and penalties.
  • Sums recoverable under insurance or indemnity.

Special deductions and allowances

ItemGeneral treatment
Plant and machineryInitial and annual depreciation allowances
Manufacturing machinery and computer hardware and softwareSpecific provisions allow full deduction in the year of purchase, subject to conditions
Building refurbishmentDeduction spread over 5 years
Research and developmentEnhanced deductions for qualifying spending
Purchase of certain intellectual propertySpecific deductions subject to conditions
Please confirmSpecific deductions have detailed conditions and anti-avoidance rules. Confirm eligibility with your tax adviser before relying on them.
Key takeawayKeep the receipt and a note of the business purpose for every significant expense. Without evidence, the Inland Revenue Department can disallow even genuine business costs.

Self-check: where do you stand?

QuestionIf the answer is no
Do you keep receipts for every expense?Use a document-capture routine
Are personal and business expenses separated?Use separate cards and accounts
Are capital purchases recorded as assets?Maintain a fixed asset register
Have you considered R&D or other special deductions?Review eligibility
How DBMS Global can help
  • Bookkeeping that captures and classifies expenses correctly.
  • Tax computations that claim the deductions available.
  • Coordinating with tax specialists on enhanced deductions.

In summary

  • Deductible if incurred in producing taxable profits.
  • Capital and private costs are not deductible directly.
  • Evidence is essential.

Official references

  • Inland Revenue Ordinance (Cap. 112), sections 16 to 17 and related provisions
  • Inland Revenue Department: Departmental Interpretation and Practice Notes, www.ird.gov.hk