InvoiceNow e-invoicing
Business document exchange for InvoiceNow — and beyond.
Send and receive e-invoices over Singapore's InvoiceNow (Peppol) network — without replacing your accounting system.
The problem
InvoiceNow is coming. PDFs won't cut it.
IRAS is phasing in InvoiceNow for GST-registered businesses. Emailing PDFs is not a compliance strategy — but replacing your systems shouldn't be the answer either.
Who it's for
Singapore SMEs, accounting firms and businesses invoicing government agencies.
What it does today
Built, shipped, working.
Peppol in & out
Invoices, credit notes, purchase orders and responses over InvoiceNow via an accredited access point.
GST done right
GST rates and validation, foreign currency, and IRAS submission built in.
Connect any system
A public API connects your ERP, POS or CRM through a single integration.
For firms & partners
Multi-tenant hub for accounting firms, white-label branding and bulk client import.
IRAS InvoiceNow timeline
InvoiceNow is coming for every GST-registered business.
Source: IRAS GST InvoiceNow requirement. Check iras.gov.sg for the latest dates that apply to you.
- 1 Nov 2025New companiesVoluntary GST registrants within 6 months of incorporation
- 1 Apr 2026All new voluntary registrantsEvery new voluntary GST registration
- 1 Apr 2028New compulsory + smallNew compulsory registrants; existing ≤ S$200k supplies
- 2029 → 2031Everyone elseExisting GST-registered businesses, by revenue band
Security & data
Built to be trusted with your records.
- InvoiceNow (Peppol) via accredited access point
- IRAS submission
- UEN auto-fill from ACRA
- Public API
- IMDA IRSP accreditation in progress
Roadmap
Where it's going.
- NowPeppol send/receive, GST, IRAS submission, APILive
- NextCollie connector — AI drafts, a person approvesIn progress
- NextIMDA IRSP accreditationIn progress
- LaterArchive to xDocs automaticallyRoadmap
Part of the ecosystem
HeyInvoice works with the rest of your stack.
InvoiceNow / Peppol
LiveSend and receive through an accredited access point
ERP · POS · CRM
LiveThrough the HeyInvoice public API, or an integration our team builds
Collie
In progressAI drafts invoices from POs; a person approves before anything is sent
xDocs
RoadmapEvery exchanged document archived as a record
FAQ
Questions, answered.
When does InvoiceNow become mandatory?
IRAS is phasing it in for GST-registered businesses: new voluntary registrants from 1 April 2026, then new compulsory registrants and existing businesses by revenue band from 2028 to 2031.
Do I need to change my accounting software?
No. HeyInvoice connects to what you use today through its API, and lets you send compliant e-invoices from the web portal.
How much does HeyInvoice cost?
Current plans are published at einvoice.heysheep.sg. Accounting firms can also join the partner programme to manage InvoiceNow for their clients.
Get InvoiceNow-ready.
Thirty minutes, your documents, real answers. A senior engineer replies within one business day.