ITQ vs ITT: Understanding Singapore Public Tender Thresholds & Rules

Singapore Government Procurement Regulatory Tiers

Public procurement in Singapore is governed by the Government Procurement Act and international agreements such as the WTO Agreement on Government Procurement (WTO-GPA). Public sector spending is divided into three statutory tiers based on estimated procurement value: Small Value Purchases (up to S$6,000), Invitation to Quote (S$6,001 to S$90,000), and Invitation to Tender (exceeding S$90,000).

What is an ITQ (Invitation to Quote)?

An ITQ applies to procurement with an estimated contract value up to S$90,000. It is designed to be streamlined and agile. Government agencies must invite quotations through GeBIZ and obtain at least three competitive quotations whenever possible. Submission deadlines are typically tight—often 7 to 14 calendar days from publication. Because ITQs rarely require high financial grading or onerous performance bonds, they represent the ideal entry point for emerging Singapore SMEs.

What is an ITT (Invitation to Tender)?

For contracts with an estimated value exceeding S$90,000, public sector agencies must issue a formal Invitation to Tender (ITT). Tenders must be open for bidding for at least 14 to 21 calendar days (and up to 40 days for WTO-GPA covered tenders). ITTs involve rigorous evaluation criteria, two-envelope submission processes (separating technical proposals from commercial price bids), and strict qualification requirements such as BCA contractor registration or EPPU financial grading.

Strategic Decision Matrix for Bidders

When prioritizing where to invest bidding effort, consider your company track record. New vendors should focus on winning 3 to 5 ITQs to establish satisfactory performance credentials with public agencies. Once you hold established government references, use historical award benchmarks on GetBizAlert to identify ITTs where incumbent suppliers are vulnerable or where contract values justify the extended tender preparation cycle.