Construction Progress Claim Assessment in Singapore.

Progress payments support cash flow while construction work is being carried out. For a contractor, the claim should present a clear and supportable valuation. For an employer or contract administrator, the assessment should recognise work properly completed without paying ahead of actual progress or outside the contract.

Start with the contract and claim period

Confirm the contract, valuation date, claim period and pricing documents before reviewing quantities. The contract may state how work is to be valued, which supporting documents are required and how retention, materials, variations and previous certificates are treated.

The current submission should also reconcile with the previous claim. A cumulative format is often useful because it shows total work to date, less amounts previously certified, leaving the amount due for the current period.

Check that the claim is complete

A well-organised claim allows the reviewer to trace each amount back to a contract item or an identified change. Useful information commonly includes:

• A claim summary and detailed valuation
• The contract sum or accepted pricing schedule
• Measured quantities or percentage-complete calculations
• Progress photographs and relevant inspection records
• Delivery records for materials claimed
• A variation register with instruction references
• Previous claims, certificates and payments
• Any applicable retention and recovery calculations

Assess measured work completed

For measured items, compare the claimed quantity with drawings, site measurements, inspection records and actual progress. The assessment should use the measurement and pricing rules in the contract. Where an item is partly complete, the percentage should reflect the value of the work actually incorporated rather than a broad estimate of activity on site.

Care is needed with work that will later be concealed. Agreeing records and measurements before closure reduces disagreement in subsequent valuations and at final account.

Review preliminaries and time-related items

Preliminaries may include fixed charges, time-related charges and activity-related items. They should not automatically be valued using the overall percentage of construction completed. Fixed items can be assessed when the relevant obligation is satisfied, while time-related items may depend on the elapsed contract period and the contractual treatment of delay or extension of time.

Verify materials on and off site

Materials may be eligible for payment only when specified contractual conditions are met. Confirm quantities, ownership, storage, insurance, identification and whether the materials are properly protected and intended for the project. Supplier invoices alone may not prove that every contractual requirement has been satisfied.

Off-site materials generally require closer review because they have not yet been incorporated into the works and may be outside the employer's control.

Keep variations separate and traceable

List each variation with its instruction, submitted amount, assessment status and amount included in the current claim. Avoid merging unapproved changes into measured contract work. A clear register makes it easier to distinguish instructed work, potential changes and disputed entitlement.

For valuation principles and supporting records, see the related guide to construction variation claim assessment.

Apply retention and other adjustments correctly

The assessment should show retention, previous certificates, advance-payment recovery and other contractual adjustments separately. This creates a transparent path from gross valuation to the net amount assessed for the period. Taxes should also be presented consistently with the contract and invoicing requirements.

Record the basis of assessment

Where the claimed and assessed amounts differ, provide a concise reason. Examples include unsupported quantity, work not completed by the valuation date, material not delivered, rate under review or variation instruction not provided. A reasoned assessment gives both parties a practical list of items to resolve before the next cycle.

Common progress claim problems

• Claiming forecast work rather than completed work
• Using unsupported percentages for lump-sum items
• Repeating previously claimed quantities
• Including variations without a clear reference or valuation
• Claiming materials without delivery or ownership records
• Applying retention inconsistently
• Failing to reconcile the claim with previous certificates
• Submitting a total without a traceable calculation

How an independent quantity surveyor can help

An independent quantity surveyor can measure work, review rates, reconcile variations, inspect supporting records and prepare a structured recommendation. Regular assessments also improve the cost report by connecting certified progress with the forecast final cost and the developing construction final account.