The Inland Revenue Ordinance is one of Hong Kong's Ordinances. It regulates the inland revenue of Hong Kong. Most commonly used sections Interpretation IRO Section.2 Interpretation of some terms using in the ordinance. Property tax IRO Section.5 Charge of property tax IRO Section.5B Ascertainment of assessable value IRO Section.7C Rental Bad debts (irrecoverable & recovered) Salaries tax IRO Section.8 Charge of salaries tax IRO Section.9 Definition of income from employment Profit tax IRD Rules 5 Charge of Profit tax in respect of non-resident IRO Section.14 Charge of profits tax IRO Section.15 Certain amounts deemed trading receipts IRO Section.16 Ascertainment of chargeable profits IRO Section.17 Deductions not allowed Tax computation IRO Section.18 Basis for computing profits IRO Section.18F Adjustment of assessable profits IRO Section.19 Treatment of losses IRO Section.20 Liability of certain non-resident persons IRO Section.20A Consignment Tax IRO Section.22 Assessment of partnerships IRO Section.24 Clubs, trade associations, etc. IRO Section.25 Deduction of property tax from profits tax Any person's HK property tax payable can be set off by the same HK profit tax payable. IRO Section.26A Exclusion of certain profits from tax IRO Section.26B Concessionary deductions, general provisions IRO Section.26C Approved charitable donations IRO Section.26D Elderly residential care expenses IRO Section.26E Home loan interest IRO Section.26G Contributions to recognized retirement schemes IRO Section.27 Allowances, general provisions IRO Section.28 Basic allowance IRO Section.29 Married person's allowance IRO Section.30 Dependent parent allowance IRO Section.31 Child allowance IRO Section.32 Single parent allowance IRO Section.34 Initial and annual allowances, industrial buildings and structures IRO Section.35 Balancing allowances and charges, buildings and structures IRO Section.37 Initial and annual allowances, machinery or plant IRO Section.38 Balancing allowances and charges, machinery or plant IRO Section.41 Election for personal assessment Tax administration IRO Section.51 Returns and information to be furnished IRO Section.51C Business records to be kept IRO Section.51D Rent records to be kept IRO Section.56A Joint owners and co-owners IRO Section.88 Exemption of charitable bodies IRO Section.88A Advance rulings See also List of Hong Kong legislation External links Inland Revenue Ordinance Cap.112 (online) Taxation in Hong Kong Hong Kong legislation