Singapore GST Rules for Construction Services Explained

May 20, 2026

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Singapore's Inland Revenue Authority (IRAS) has published updated guidelines on how Goods and Services Tax (GST) applies to construction services and the industry. IRAS first published these guidelines in 2013 and has revised them on several occasions, most recently in July and September 2024. In general, the guidelines focus on practical situations commonly encountered by contractors, subcontractors, and developers.

The Scope of GST Guidelines

The GST guidelines for construction services confirm that GST applies to all construction services carried out in Singapore, regardless of whether the work relates to residential or commercial properties. Additionally, the IRAS explained that the time-of-supply rules, particularly how GST should be accounted for on progress payments and retention sums, are common payment structures in construction contracts.

Furthermore, the guidelines address several industry-specific GST issues, including the treatment of counter-supplies and compensation payments, as well as the distinction between security deposits and advance payments. Also, they clarify the GST implications of worker dormitory rentals and explain the difference between reimbursements and disbursements, which determines whether GST must be charged.

Finally, with these guidelines, IRAS clarified the conditions businesses must meet to claim input tax credits and highlighted common GST reporting mistakes to help construction businesses improve compliance and avoid errors. As part of the latest updates, the IRAS revised contract information details, which is an important change for taxable persons operating in the industry.

Conclusion

The IRAS GST guidance as a whole is important for construction companies and those engaged in construction services, as it clarifies the general GST rules applicable in the sector and provides numerous practical examples. While the latest updates might not be groundbreaking, unlike previous ones that revised examples, included details on GST on compensation received for suspension of work, and included other editorial changes, the provided contact details are valuable for taxable persons.

Source: Inland Revenue Authority of Singapore (IRAS)

Does GST apply to all construction services in Singapore?

Yes, GST applies to all construction services carried out in Singapore, regardless of whether they relate to residential or commercial properties. The IRAS guidelines make it clear that the nature of the property does not change GST applicability.

How are progress payments treated under GST rules?

Progress payments in construction contracts are subject to time-of-supply rules. This means GST must be accounted for based on how and when these payments are made under the contract structure.

What is the GST treatment of retention sums?

Retention sums are also addressed under the time-of-supply rules. GST must be properly accounted for in line with how these sums are treated within construction payment arrangements.

How are compensation payments and counter-supplies treated for GST?

The IRAS guidelines explain that construction-related GST rules include specific treatment for counter-supplies and compensation payments, helping businesses determine when GST should be charged.

What is the difference between security deposits and advance payments for GST?

Security deposits and advance payments are treated differently for GST purposes. The guidelines clarify how to distinguish between them so businesses can apply GST correctly depending on the nature of the payment.

What do the IRAS guidelines say about input tax credits and compliance?

The guidelines set out the conditions businesses must meet to claim input tax credits and also highlight common reporting mistakes. This helps construction companies improve compliance and avoid GST errors.

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