2 December, 2025
Learn how e-invoicing works in Singapore, upcoming 2025–2026 requirements for GST-registered businesses, and how to get InvoiceNow-ready.
Electronic invoicing, better known as e-invoicing, is becoming an essential part of how businesses in Singapore exchange invoice data. Beyond being a digital upgrade, e-invoicing helps companies reduce manual work, lower errors, accelerate payments, and stay compliant with upcoming changes introduced by IMDA and IRAS.
If you’re new to e-invoicing or wondering whether it will affect your business, this guide walks you through everything:
E-invoicing in Singapore refers to the automatic, system-to-system exchange of invoice data between businesses, using InvoiceNow. It is built on Peppol, a global framework adopted in more than 40 countries.
Instead of sending PDFs, scanning documents, or emailing invoices manually, businesses can send and receive invoices directly between accounting software, in a structured digital format.
While PDFs and email attachments are common today, they still require:
E-invoicing removes all these steps by letting both systems speak the same language.
Singapore’s e-invoicing framework runs on Peppol, a secure global network that standardizes how invoice data is formatted and transmitted.
When you send an e-invoice via a Peppol-ready system:
No email. No attachments. No manual work.
The move toward InvoiceNow is part of Singapore’s national push for a more efficient, secure, and connected digital economy.
Here’s why SMEs, accountants, and finance teams love it.
Manual invoicing increases the chances of:
With e-invoicing, data flows directly from your system to your customer’s system with no manual typing, cutting error rates dramatically.
E-invoices reach your customers instantly. They don’t sit unread in inboxes or get lost in folders.
This speeds up:
For SMEs, improving cash flow is often the biggest advantage.
Because invoices are exchanged securely through verified access points, it becomes significantly harder for scammers to:
This adds an important layer of protection for businesses.
E-invoicing integrates directly with accounting platforms, such as Jaz, so your workflows remain intact. You simply create invoices the way you already do.
Peppol is used in Europe, Australia, New Zealand, Japan, and many more regions.
If your business deals with overseas customers or suppliers, e-invoicing helps you operate on a global standard.
IMDA and IRAS have announced that e-invoicing will be implemented in phases, especially for GST-registered businesses.
These are the latest milestones for adoption:
1 May 2025
Businesses that voluntarily opt in can begin adopting e-invoicing.
1 Nov 2025
Businesses that register for GST voluntarily within 6 months of incorporation will adopt e-invoicing from this date.
1 Apr 2026
All voluntary GST-registered businesses will follow e-invoicing requirements.
While requirements are phased, the direction is clear: E-invoicing will increasingly become the default way to send and receive invoices in Singapore.
For businesses already registered for GST, e-invoicing helps ensure transactions flow smoothly into GST reporting.
Because invoice details are structured and validated, errors in GST reporting are reduced.
No re-typing invoice amounts or GST figures.
E-invoicing lays the foundation for a more connected tax ecosystem in Singapore.
For now, it applies primarily to GST-registered businesses in phases. However, many businesses are choosing to start early to streamline workflows.
You may still do so, but e-invoicing adds a more reliable and automated channel.
No, it works through your accounting system.
No, SMEs benefit greatly because it removes manual work and reduces errors.
Choose an InvoiceNow-Ready Solution Provider.
Most software providers handle this automatically.
Just a quick setup. No coding or technical configuration needed.
Your software will take care of formatting and sending the invoice through the network.
Starting early ensures your workflows are smooth before adoption deadlines come into effect.
At Jaz, we designed a modern accounting platform for SMEs and accounting firms, built with clear workflows, speed, and automation in mind.
With Jaz, you can:
Create an invoice as usual. Jaz handles InvoiceNow and Peppol formatting and transmission.
Incoming e-invoices sync directly to your records.
Structured data = cleaner books, faster GST reporting, fewer adjustments.
Faster processing, fewer backlogs, and clearer audit trails.
E-invoicing is one part of a larger shift toward automated financial workflows. Jaz is built to help you grow into that future.
E-invoicing is transforming how businesses in Singapore exchange invoice data. It brings efficiency, speed, and security, while preparing businesses for a more connected digital economy.
Whether you’re a small business owner, a finance manager, or an accounting firm, the sooner you prepare, the smoother your transition will be.
If you’d like help understanding how e-invoicing fits into your current workflow or want to get InvoiceNow-ready, talk to us — we’ll guide you through everything.
