Payment Response (Hong Kong)

A Payment Response in Hong Kong commences or advances proceedings by stating the claim and the relief sought.

Hong Kong stands apart from many comparable jurisdictions in having no statutory security of payment regime. Australia enacted the Building and Construction Industry Security of Payment Act in each state and territory; Singapore has its Building and Construction Industry Security of Payment Act (Cap. 30B); the United Kingdom has the Housing Grants, Construction and Regeneration Act 1996 with its statutory right to adjudication. Hong Kong has none of these. The Construction Industry Council (CIC) has advocated for security of payment legislation for over a decade, and the Development Bureau has conducted consultations, but as of 2026 no legislation has been enacted. All payment rights — including the right to receive a payment response and the timeline for doing so — are governed entirely by the construction contract and common law principles applied by the Court of First Instance and the Court of Appeal.

For private building works, the dominant standard form is the HKIA Standard Form of Building Contract (Private Edition, With Quantities), published jointly by the Hong Kong Institute of Architects (HKIA), the Hong Kong Institute of Surveyors (HKIS), and the Hong Kong Institution of Engineers (HKIE). Under this form, the architect issues an interim certificate — effectively the payment response — within 14 days of the contractor's monthly interim application. The interim certificate states the amount the architect has assessed as due; the employer must then pay within 14 days of the certificate, making the total cycle 28 days from application to payment. For government building and civil engineering works, the Government of the Hong Kong SAR General Conditions of Contract for Building Works (GCC) and the General Conditions of Contract for Civil Engineering Works govern the certification process, with the engineer acting as certifier.

All amounts in Hong Kong construction contracts are expressed in Hong Kong Dollars (HKD). Hong Kong levies no Goods and Services Tax (GST) or Value Added Tax (VAT), so construction payment claims and responses require no tax adjustment. Section 20 of the Arbitration Ordinance (Cap. 609) gives the arbitral tribunal power to award interest on unpaid certified amounts. Section 49 of the High Court Ordinance (Cap. 4) provides equivalent power in litigation before the Court of First Instance. The Hong Kong International Arbitration Centre (HKIAC) administers construction arbitrations under its Domestic Arbitration Rules and its Administered Arbitration Rules for international disputes. Section 3 of the Limitation Ordinance (Cap. 347) imposes a six-year limitation period on claims under construction contracts, running from the date of breach.

Forms-legal.com provides a professionally drafted Hong Kong Payment Response template covering HKIA Standard Form interim certificate requirements, retention release calculations, and Section-referenced adjustment reasoning compliant with the Arbitration Ordinance (Cap. 609) and the High Court Ordinance (Cap. 4).

A Payment Response is required each time the contractor submits a payment claim under the construction contract. The frequency depends on the payment provisions in the contract — monthly interim applications are standard under both the HKIA Standard Form and the Government GCC.

Interim payment applications during construction: Every month throughout the construction period, the contractor submits an interim payment application documenting the value of work completed, variations, materials on site, and other contract sums. The contract administrator must respond by issuing an interim certificate — the payment response — within the contractual certification period (14 days under the HKIA Standard Form). Failure to respond within the required period may constitute a breach by the employer and, in contracts with deemed certification provisions, may trigger automatic certification of the contractor's claimed amount.

Variation account responses: Where the contractor submits a standalone variation account for approved additional works under the HKIA Standard Form, the contract administrator — whether an architect registered with the HKIA, an engineer registered with the HKIE, or a quantity surveyor registered with the HKIS — should respond with an assessment of the fair valuation of those variations under Section 32 of the standard form valuation rules. Delays in responding to variation accounts prolong the final account process and increase the risk of disputed amounts crystallising into formal claims.

Practical completion certificate response: At practical completion, the contract administrator issues a completion certificate and an interim certificate releasing the first moiety of retention. The payment response at this stage must clearly state the retention release calculation and the net amount certified.

Final account certification: At the conclusion of the project, after the defects liability period, the contract administrator certifies the final account — a thorough settlement of all amounts due under the contract. The final certificate is the most important payment response in the project lifecycle, as it discharges all contractual obligations subject to any outstanding disputes.

Claims and loss-and-expense responses: Where the contractor submits a claim for prolongation costs, disruption, or other loss and expense under the contract, the contract administrator must respond with an assessment. The response should address each head of claim with reasons, providing the contractor with a clear basis for evaluating whether to accept the assessment or pursue the contract's dispute resolution mechanism — mediation under the Hong Kong Mediation Ordinance (Cap. 620) or arbitration under the HKIAC Domestic Arbitration Rules.

A Hong Kong Payment Response must contain the following elements to be contractually effective and to provide the contractor with adequate information to assess and, if necessary, challenge the certified amount.

Project and contract identification: Full project name, address, and description; contract reference number; names of the employer, contractor, and contract administrator as they appear in the executed construction contract; the HKIA registration number or HKIE membership details of the contract administrator; and the project's Authorised Person (AP) details where the contract relates to works under Section 4 of the Buildings Ordinance (Cap. 123).

Claim reference: The sequential number and date of the contractor's payment claim to which this response relates. The payment response should address each item in the contractor's claim, even if some items are rejected or deferred.

Certification date and payment due date: The date the certificate is issued and the date by which the employer must pay the certified amount. Under the HKIA Standard Form, payment is due within 14 days of the certificate. The payment due date should be stated explicitly to avoid disputes about the commencement of any interest obligation.

Certified gross amount: The total gross value of work certified to date — the cumulative value of all work properly executed from commencement to the end of the claim period. This figure should be broken down by: measured works (valued by reference to the Bills of Quantities or Schedule of Rates); variations (valued in accordance with the contract variation provisions — fair rates, daywork, or agreed lump sums); daywork (supported by signed daywork sheets); materials on site (if the contract provides for payment for materials delivered but not yet incorporated); and any other contract sums.

Reasons for any difference from claimed amount: Where the certified amount differs from the contractor's claimed amount — whether because the contract administrator disagrees with the valuation of particular items, has not yet assessed certain variations, or has applied different measurement principles — the certificate must clearly identify each area of difference and state the reasons. Without reasons, the contractor cannot evaluate the certification or decide whether to raise a formal dispute.

Adjustments and deductions: All adjustments applied to the gross certified amount must be separately identified and quantified. Standard deductions include: retention deduction (typically 10% of the gross amount, reducing to 5% after practical completion, subject to the retention limit in the contract appendix); liquidated damages (if the contractor is in culpable delay and the contract administrator has issued a non-completion certificate under the HKIA Standard Form); back-charges and contra-charges (the cost of work the employer has carried out due to the contractor's default); and set-off for defective works not rectified by the contractor.

Retention calculation: The running total of retention held — gross retention deducted to date, less any retention previously released. At practical completion, the first moiety release amount should be separately stated. The retention held should cross-reference to the retention trust obligations under the contract.

Net amount certified for payment: The net amount payable by the employer — gross certified amount less all deductions and less previous payments. This is the amount the employer must pay within the contractual payment period. All amounts are expressed in HKD with no GST or VAT component.

Contract administrator's signature: The architect's or engineer's signature, professional seal, and HKIA or HKIE registration number. For government contracts, the engineer's certification must comply with government financial regulations and may require countersignature by a departmental officer. The forms-legal.com Payment Response (Hong Kong) template covers the mandatory elements under Arbitration Ordinance (Cap. 609).