In this guide · 7 sections
- 01How government buying works on GeBIZ
- 02Step by step: GeBIZ Trading Partner registration
- 03IT setup for bidding: accounts, email and documents
- 04Getting paid: Vendors@Gov and InvoiceNow
- 05Do government tenders require Cyber Essentials or Cyber Trust?
- 06Do it yourself or get help?
- 07Frequently asked questions
Short answer
Set up Corppass, assign the GeBIZ e-service to staff who will bid, then sign up as a GeBIZ Trading Partner; the first account is free. Bill agencies via Vendors@Gov or InvoiceNow. Check each tender for security requirements such as CSA's Cyber Essentials or Cyber Trust mark.
How government buying works on GeBIZ
GeBIZ is the Singapore government's e-procurement portal. Ministries, departments and statutory boards buy on their own, but under central Ministry of Finance rules. GeBIZ's guide to Singapore government procurement explains the three routes by value: small value purchases bought directly, Quotations for mid-sized purchases, and Tenders (open, selective or limited) above that. Quotation and tender notices are posted on GeBIZ, and agencies publish a list of indicative opportunities for the financial year.
GeBIZ's FAQ is clear on one point people often miss: to respond to electronic tenders, quotations and qualifications, you must first register as a GeBIZ Trading Partner. Registration is not a business licence; you still need your normal ACRA registration.
Step by step: GeBIZ Trading Partner registration
These steps are for a Singapore business with a UEN. Individuals and overseas suppliers follow slightly different routes on GeBIZ's getting started page.
Set up Corppass
GeBIZ's FAQ says business entities must be registered with Corppass to register as a Trading Partner. Your Corppass Admin (often a director) sets it up at corppass.gov.sg.
Assign the GeBIZ e-service
The Corppass Admin assigns the GeBIZ e-service to each person who will bid. See our Corppass setup and roles guide.
Sign up on GeBIZ
The assigned person logs in with Singpass through "Log in for Companies" and completes the Trading Partner e-registration form. GeBIZ says local applications are approved immediately and the authorised representative is told by email.
Choose your procurement categories
Select the goods and services you supply, so relevant opportunities reach you. Subscribe to alerts or RSS feeds for those categories.
Set up Vendors@Gov for billing
Vendors@Gov is the government's billing portal. Access is through Corppass, with the Vendors@Gov digital service assigned to finance staff.
- First authorised representative (bidding) accountFree
- Each additional authorised representative accountIncluding GSTS$280 a year
- Non-Bidding Representative account (admin or finance tasks)Including GSTS$70 a year
Typical small businessFree (one bidder)
Source: GeBIZ FAQ, Trading Partner Billing, checked 19 October 2026. Fees are non-refundable.
IT setup for bidding: accounts, email and documents
Tenders have hard closing times and are submitted online, so small IT gaps cause missed bids. Set these up before your first quotation.
Before your first bid
Getting paid: Vendors@Gov and InvoiceNow
Government agencies are billed electronically. Vendors@Gov describes itself as the portal for government vendors to submit e-invoices to ministries and statutory boards, and it uses Corppass login.
InvoiceNow, Singapore's Peppol e-invoicing network, is the other route. IMDA's InvoiceNow page records that government procurement was connected to Peppol in 2020, and that in 2023 the Government announced plans to make InvoiceNow the default channel for public procurement in the next few years. If your accounting software is InvoiceNow-ready, you can send invoices straight from it instead of retyping them in a portal.
InvoiceNow is also becoming a GST requirement in phases: IMDA lists the GST InvoiceNow Requirement for new voluntary GST registrants from 2025 and 2026, and for remaining GST-registered businesses progressively by April 2031. Setting it up once covers both. Our InvoiceNow setup guide explains the steps.
Do government tenders require Cyber Essentials or Cyber Trust?
Not as a general rule for registering on GeBIZ. Requirements are set per tender, so read the tender's specifications and conditions of contract. That said, cybersecurity expectations for government vendors are rising, especially where a supplier will access government data or systems.
| Situation | What applies | Source |
|---|---|---|
| Registering on GeBIZ | Corppass and registration; no CSA mark required by GeBIZ's FAQ | GeBIZ FAQ |
| A tender asks for a mark | Follow the tender: often Cyber Essentials, Cyber Trust or ISO 27001 | The tender documents |
| Licensed cybersecurity service providers (pen testing, managed SOC) | Cyber Trust Promoter (Tier 3) needed; grace period to 31 December 2026 | CSA, 2 March 2026 |
| Vendors with access to sensitive government data or systems | CSA said in April 2025 it was assessing whether to require marks before bidding | MDDI speech, 15 April 2025 |
In an April 2025 speech, the Senior Minister of State said CSA was assessing measures for vendors given access to sensitive government data or systems, including possibly requiring Cyber Essentials or Cyber Trust before they could bid. CSA's 2 March 2026 announcement then required licensed providers of penetration testing and managed security operations centre services to hold the Cyber Trust mark. If you supply IT or handle data for agencies, getting Cyber Essentials now is a sensible step even where a tender doesn't demand it.
Do it yourself or get help?
Corppass and GeBIZ registration are owner jobs that take an hour or two with the right Singpass access. The IT work around them, secure email, InvoiceNow and any cybersecurity mark a tender asks for, is where help speeds things up.
Our InvoiceNow (Peppol) Setup (S$190) connects your accounting software so you can invoice agencies directly. Our CSA Cyber Essentials Readiness (from S$990) prepares you for the mark, and a Security Health Check (S$290) is a quick baseline before you answer a tender's security questions.
Frequently asked questions
Yes for the first account. GeBIZ's FAQ says the first authorised representative account is free, and each additional authorised representative account costs S$280 a year including GST. A Non-Bidding Representative account for admin or finance tasks costs S$70 a year. Subscription fees are non-refundable.
Yes, if you are a business entity. GeBIZ's FAQ says business entities, local or overseas, must be registered with Corppass to register as a GeBIZ Trading Partner. Your Corppass Admin assigns the GeBIZ e-service to the staff who will bid. Individuals without a UEN register using Singpass instead.
For local suppliers, GeBIZ says applications are approved immediately upon successful submission, and the authorised representative is informed by email. Overseas suppliers need a Corppass account for foreign entities first. Allow extra time for setting up Corppass itself if your company doesn't have it yet.
Not to register on GeBIZ. Requirements are set per tender, so check the specifications. Some tenders ask for cybersecurity certification, and CSA now requires licensed penetration testing and managed SOC providers to hold Cyber Trust Tier 3. CSA has said it is assessing requirements for vendors with access to sensitive government data.
Submit e-invoices through Vendors@Gov, logging in with Corppass, or send them through InvoiceNow from InvoiceNow-ready accounting software. IMDA says government procurement has been connected to InvoiceNow since 2020, and the Government plans to make InvoiceNow the default channel for public procurement.