Questions on InvoiceNow? Join our upcoming webinar!
Thursday, 20 August 2026, 10:00am – 10:30am | Live Online | FREE to AttendUnderstand Singapore's InvoiceNow requirements before your business is required to comply
Is your Singapore business ready for InvoiceNow?
With Singapore’s GST InvoiceNow Requirement being rolled out progressively, GST-registered businesses need to understand when they will be affected, what they need to do, and whether their accounting software is ready.
If you are a Singapore SME, business owner, finance professional or accountant, this guide explains InvoiceNow and GST InvoiceNow in simple, practical terms — including the key requirements, implementation timeline and how accounting software such as Xero can help.
What is InvoiceNow in Singapore?
InvoiceNow is Singapore’s nationwide e-invoicing network, introduced by the Infocomm Media Development Authority (IMDA).
It allows businesses to send and receive structured digital invoices directly between accounting or finance systems through the Peppol network, instead of relying on paper invoices, PDFs or manual data entry.
For Singapore SMEs, InvoiceNow can help businesses:
- Send and receive e-invoices electronically
- Reduce manual data entry and administrative work
- Reduce invoicing errors
- Improve invoice processing efficiency
- Receive invoices directly into accounting software
- Streamline financial and accounting processes
- Prepare for Singapore’s GST InvoiceNow requirements
What is GST InvoiceNow?
The GST InvoiceNow Requirement is a Singapore tax administration initiative by the Inland Revenue Authority of Singapore (IRAS) that uses the InvoiceNow network to transmit invoice data to IRAS.
Under the requirement, GST-registered businesses will progressively be required to transmit invoice data to IRAS using InvoiceNow-Ready Solutions.
The requirement is being implemented in phases and will eventually cover all GST-registered businesses in Singapore.
InvoiceNow vs GST InvoiceNow
- InvoiceNow
Singapore’s nationwide e-invoicing network that enables businesses to send and receive structured e-invoices through the Peppol network. - GST InvoiceNow Requirement
The phased requirement for GST-registered businesses to transmit invoice data to IRAS through the InvoiceNow network.
In simple terms:
- InvoiceNow = the e-invoicing network
- GST InvoiceNow = using that network to transmit invoice data to IRAS
The GST InvoiceNow Requirement is being introduced progressively based on when a business registers for GST and, for existing GST-registered businesses, its annual supplies.
| Implementation Date | Businesses Affected |
|---|---|
| 1 November 2025 | Newly incorporated companies that voluntarily register for GST within 6 months of incorporation |
| 1 April 2026 | Businesses that apply for voluntary GST registration on or after 1 April 2026 |
| 1 April 2028 | New compulsory GST registrants and existing GST-registered businesses with annual supplies of S$200,000 or less |
| 1 April 2029 | Existing GST-registered businesses with annual supplies of S$1 million or less |
| 1 April 2030 | Existing GST-registered businesses with annual supplies of S$4 million or less |
| 1 April 2031 | Existing GST-registered businesses with annual supplies of more than S$4 million |
The implementation dates above are based on the current IRAS requirements. Existing GST-registered businesses were to be informed of their applicable mandatory implementation date by mid-2026.
Is InvoiceNow mandatory in Singapore?
InvoiceNow and the GST InvoiceNow Requirement are related, but they are not exactly the same thing.
Singapore is progressively introducing the GST InvoiceNow Requirement for GST-registered businesses. The requirement began with specific groups in 2025 and 2026 and will expand progressively until all GST-registered businesses are covered by April 2031.
Businesses are also encouraged to adopt InvoiceNow early, before their mandatory implementation date.
This means that Singapore SMEs should not wait until their deadline to start preparing.
How does InvoiceNow work?
InvoiceNow uses the Peppol network to exchange structured electronic invoices between businesses.
A simplified process looks like this:
1. Create an invoice
Create your invoice using an InvoiceNow-ready accounting or invoicing solution.
2. Send the e-invoice
The invoice is transmitted through the InvoiceNow network.
3. Your customer receives it
The e-invoice can flow directly into the customer’s connected accounting or finance system.
4. Invoice data can be transmitted to IRAS
For businesses subject to the GST InvoiceNow Requirement, invoice data is transmitted to IRAS through the InvoiceNow network.
This reduces the need for manual data entry and can make invoicing and accounting processes more efficient.
What do Singapore businesses need to do to prepare?
If your business is affected by GST InvoiceNow, there are several practical steps to consider.
1. Check your GST registration status
Determine whether your business is GST-registered and whether you fall within the current or upcoming implementation phases.
2. Check your accounting software
Your accounting or finance software needs to support the InvoiceNow requirements applicable to your business.
3. Get connected to InvoiceNow
Your business needs to use an InvoiceNow-Ready Solution and connect to the InvoiceNow network.
4. Review your invoicing processes
Consider how invoices are created, sent, received, recorded and transmitted.
5. Prepare your team
Your business and accounting team should understand how InvoiceNow will affect day-to-day invoicing and bookkeeping.
6. Start early
Don’t wait until the mandatory deadline. Early onboarding gives your business time to identify and resolve technical or process issues.
Looking for InvoiceNow-ready accounting software?
Xero Accounting Software for Singapore SMEs
Xero accounting software supports InvoiceNow and connects to the Peppol network, allowing Singapore businesses to send and receive e-invoices directly through their accounting software. Xero also provides tools for managing GST and IRAS-related accounting processes.
With Xero, Singapore SMEs can:
✓ Send and receive e-invoices through InvoiceNow
✓ Connect to the Peppol network
✓ Manage invoices and bills in one accounting platform
✓ Reduce manual data entry
✓ Manage GST transactions
✓ Prepare GST returns
✓ Keep accounting information organised digitally
Get up to 50% PSG funding for Xero
Eligible Singapore businesses may be able to receive up to 50% funding support through the Productivity Solutions Grant (PSG) when adopting Xero through a pre-approved PSG vendor. The PSG supports businesses in adopting digital solutions to improve productivity and business processes.
Still confused about InvoiceNow?
You’re not the only one.
With the GST InvoiceNow Requirement being introduced in phases, many Singapore SMEs, business owners, finance teams and accountants still have questions such as:
“Does my business need to comply?”
“When is my deadline?”
“What exactly needs to be submitted to IRAS?”
“Is my accounting software InvoiceNow-ready?”
“Do I need to change my accounting system?”
“How do I get started?”
Rather than trying to figure it out yourself, join our free live webinar and get your questions answered!
Join Our Free Live InvoiceNow Webinar
InvoiceNow & GST InvoiceNow: What Singapore Businesses Need to Know
Thursday, 20 August 2026
10:00am – 10:30am
Live Online | FREE to Attend
Join our practical 30-minute session to understand Singapore’s InvoiceNow and GST InvoiceNow requirements without the complicated jargon.
In this live webinar, we’ll cover:
✓ What InvoiceNow is and how it works
✓ What the GST InvoiceNow Requirement means
✓ Who needs to comply and when
✓ Key implementation timelines
✓ What Singapore SMEs need to prepare
✓ Accounting software and InvoiceNow readiness
✓ Common InvoiceNow misconceptions
✓ Live Q&A — ask our specialists your questions
Join our webinar for free by clicking on the button below!
Need Help With InvoiceNow?
Not sure whether your business is ready for InvoiceNow or GST InvoiceNow?
Speak to our InvoiceNow specialists to understand the requirements, implementation timelines and what your Singapore business needs to do next. Whether you’re a Singapore SME, business owner, finance professional or accountant, we’re here to help you navigate InvoiceNow with confidence.
Ready to get started with GST InvoiceNow? Contact us at 6515 7906 or enquiry@361dc.com to assess your eligibility and identify the most suitable InvoiceNow grant for your business.
InvoiceNow is Singapore's nationwide e-invoicing network based on the Peppol framework. It enables businesses to exchange structured e-invoices directly between connected accounting and finance systems.
The GST InvoiceNow Requirement is being introduced progressively to GST-registered businesses in Singapore. The mandatory implementation date depends on factors including when the business registered for GST and, for existing GST-registered businesses, its annual supplies.
GST InvoiceNow refers to the requirement for GST-registered businesses to transmit invoice data to IRAS using InvoiceNow-Ready Solutions through the InvoiceNow network.
The GST InvoiceNow Requirement is being progressively extended to all GST-registered businesses, with the current rollout scheduled to reach all existing GST-registered businesses by 1 April 2031.
Yes. Xero connects to the Peppol network and supports InvoiceNow, allowing businesses to send and receive e-invoices through Xero.
Eligible Singapore businesses may receive up to 50% funding support under the Productivity Solutions Grant (PSG) when adopting Xero through a pre-approved PSG vendor, subject to prevailing eligibility criteria and government approval.
Not necessarily. IMDA advises businesses to first check whether their existing accounting or finance solution is InvoiceNow-ready. If it is not, you may need to consider an InvoiceNow-ready solution or another way of connecting to the network.
Join our free live InvoiceNow webinar to learn more about the requirements, implementation timelines and practical considerations and ask your questions during our live Q&A.
