IMDA Accredited Solution · Singapore

InvoiceNow and GST InvoiceNow, built into your workshop system

Webmax is certified for Singapore’s national e-invoicing framework. Send invoices to trading partners over the Peppol network and submit GST invoice data to IRAS, all from the system you already use.

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Accreditation & Network

IMDA Accredited

Approved InvoiceNow solution provider

Peppol Network

Global open standard for B2B e-invoicing

IRAS GST Compliant

GST invoice data sent directly to IRAS

STEP 1

Webmax system

Create and issue invoices as usual

STEP 2

Peppol network

Secure, structured e-invoice delivery

STEP 3

Trading partner

Receives your invoice instantly

STEP 4

IRAS

GST data submitted automatically

Understanding e-invoicing

What is InvoiceNow?

InvoiceNow is Singapore’s nationwide e-invoicing network, launched by the Infocomm Media Development Authority (IMDA) in 2019. Businesses of any size can send and receive invoices in a standard digital format, directly between their accounting or finance systems, with no manual handling.

The network runs on Peppol, an open international standard. Singapore was the first country outside Europe to use Peppol for private-sector B2B invoicing, and IMDA became the Peppol Authority in May 2018, responsible for certifying Access Point providers.

Invoices travel from your system, through the secure Peppol network, to your customer’s system. At the same time, the GST invoice data reaches IRAS in real time.

Did you know? Singapore was the first non-European country to join the Peppol network for business-to-business e-invoicing — part of the country’s broader Smart Nation and digital economy initiative.

Benefits

Why switch to InvoiceNow?

E-invoicing saves time and cost for your workshop, makes life easier for your

customers and suppliers, and keeps your GST records clean.

Faster Invoice Processing

Invoices move from system to system instantly. No re-typing, email attachments or postal delays, so you get paid sooner.

Secure by design

Every invoice travels over the Peppol standard, which reduces the risk of fraud, interception and tampering.

Lower running costs

Cut printing, postage and manual processing, along with the cost of fixing errors, so your team can focus on customers.

Simplified GST Compliance

With GST InvoiceNow, invoice data goes to IRAS when you issue the invoice. Expect shorter GST audits and faster refunds.

Better cash flow

Quicker delivery means quicker payment. Fewer disputes over lost or incorrect invoices keep your receivables moving.

Ready for the future

Peppol is used worldwide and growing. Your invoicing already follows the same standard as your international partners.

Government timetable

GST InvoiceNow: key dates

IRAS and IMDA are rolling out GST InvoiceNow in phases for all GST-registered businesses. Here is the schedule.

1 November 2025

Mandatory — New Voluntary GST Registrants

Companies that register for GST voluntarily within 6 months of incorporation date.

1 April 2026

Mandatory — All New Voluntary GST Registrants

All new voluntary GST registrants regardless of incorporation date or business structure.

1 April 2028

Mandatory — New Compulsory Registrants & Existing Businesses ≤ S$200,000

All new compulsory GST registrants. Existing GST-registered businesses with total annual supplies ≤ S$200,000.

1 April 2029

Mandatory — Existing Businesses ≤ S$1 million

Existing GST-registered businesses with total annual supplies ≤ S$1,000,000.

1 April 2030

Mandatory — Existing Businesses ≤ S$4 million

Existing GST-registered businesses with total annual supplies ≤ S$4,000,000.

1 April 2031

Mandatory — Existing Businesses > S$4 million

Existing GST-registered businesses with total annual supplies > S$4,000,000.

ℹ️ The final phase deadline has been extended to April 2031, as announced at the Committee of Supply 2026. Start early to enjoy the benefits before your deadline.

Webmax solution

Webmax ERP is InvoiceNow & GST InvoiceNow Ready

As an IMDA-accredited InvoiceNow solution provider, Webmax’s integrated ERP system has been certified to meet IMDA’s technical standards. Your business can comply with Singapore’s e-invoicing requirements without changing how you work.

Peppol document exchange

Invoices and business documents are converted to the Peppol standard and sent straight to your partners’ systems. No emailing, no attachments, no re-keying.

Automatic GST submission to IRAS

When you issue an invoice, the GST data goes to IRAS at the same moment, in real time and with no extra effort.

Full audit trail and logs

Every transmission is logged with acknowledgements and status updates, so you always know where an invoice stands and you are ready for audits.

No change to your workflow

Create invoices exactly as you do today. Webmax handles Peppol delivery and IRAS submission in the background.

Ready for every phase

Whether the rules already apply to you or you are preparing for a later phase, Webmax keeps you ready well ahead of each deadline.

Get InvoiceNow-ready today

Already a Webmax customer? Contact your account manager to switch on InvoiceNow and GST InvoiceNow. New to Webmax? Talk to us about getting your workshop compliant with minimal effort.

Contact us for support

FAQs

WebMax E-Invoicing(InvoiceNow) FAQ

What is InvoiceNow?

InvoiceNow is a digital invoicing service that enables businesses to send invoices directly from one accounting or finance system to another in a structured digital format.

It operates through the Nationwide E-Delivery Network, which is based on the Peppol network. This allows invoice information to be transmitted electronically and can also support seamless e-payment solutions such as PayNow.

A PDF e-invoice is commonly sent to the recipient by email. Although this is a digital process, the recipient still needs to manually enter the invoice information into their own accounting or accounts payable system.

InvoiceNow provides a more automated solution. Invoice data can be transmitted directly from the supplier’s system to the buyer’s system in a structured format, reducing the need for manual data entry. It can also support a more seamless payment process.

You can activate InvoiceNow through a Peppol-ready solution that is certified by IMDA, such as Webmax.

Webmax can help businesses connect to the InvoiceNow network and send and receive e-invoices electronically.

Most Access Points (APs) and Solution Providers (SPs) may charge transaction fees for sending and receiving InvoiceNow e-invoices.

As there are many APs and SPs available in the market, pricing remains competitive, and some providers may offer InvoiceNow features at no additional cost. Some providers offer a limited number of free e-invoices for small businesses, while others include InvoiceNow transactions as part of their existing software packages.

Some providers may also use tiered pricing, where the cost per transaction becomes lower as the transaction volume increases.

Additional charges may apply for value-added services, such as converting PDF invoices into the InvoiceNow Peppol format.

Overall, e-invoicing can help businesses reduce manual processing, improve efficiency and minimise administrative work, which may help offset the associated costs.

You can check whether your suppliers, customers and business partners are registered on the Peppol network.

For Singapore-registered businesses, you can search using the company’s name or UEN number.

When searching by UEN number, remember to include “0195:SGUEN” before the UEN number.

For example:

0195:SGUEN + UEN Number

This allows you to check whether the business is registered as a Peppol-ready participant.

No. Once an e-invoice has been finalised and sent through the InvoiceNow network, it cannot be recalled or retrieved.

The process is similar to sending an email — once the invoice has been transmitted to the recipient, there is no function to recall it.

If an invoice contains incorrect information, the supplier can issue a credit note referencing the original invoice to cancel or adjust the incorrect transaction.

Alternatively, the supplier may ask the recipient to reject or disregard the incorrect invoice and then issue a new, corrected invoice.

Under the current arrangement, the government does not directly access or monitor the contents of your invoices simply because they are sent through InvoiceNow.

Invoices are transmitted directly between the sender’s and recipient’s Access Point providers.

The central directory maintained by SGNIC contains the necessary business registration information to help Access Points identify and route invoices to the correct recipient.

The directory is used for routing purposes and does not mean that the government has direct access to the contents of your business invoices.

Is your business InvoiceNow-ready?

Phase 2 has been in effect since 1 April 2026. Don’t wait for your own deadline. Get ahead with Webmax’s IMDA-accredited solution.

Talk to our team