Portal / manual upload
Operator-driven
- Suitable for very low volumes with simple document types.
- Useful for pilot programmes before ERP integration.
- Requires duplicate entry from ERP to portal.
- Hard to scale across branches and automated billing.
Singapore e-invoicing
- InvoiceNow Ready
- Peppol Network
- Singapore-Registered
InvoiceNow & Peppol Integration Singapore
Secure middleware that connects your ERP, accounting, or custom software to Singapore's InvoiceNow and Peppol e-invoice networks — without manual re-entry or fragile spreadsheet bridges.
Portal vs API integration
InvoiceNow Portal vs. Integrated Middleware
Low-volume businesses may start on portal workflows. Enterprises with ERP, POS, or multi-entity billing need API-grade integration so finance never re-keys data.
API Middleware Integration
Native to your systems
- Invoices composed once in ERP or billing engine, transmitted automatically.
- Validation and error handling inside your operational stack.
- Scales to thousands of B2B documents with audit trails.
- Supports Peppol routing, status callbacks, and reconciliation dashboards.
The definition
What is Custom InvoiceNow / Peppol Integration?
Singapore's InvoiceNow initiative and the Peppol network require structured electronic invoices — not PDF email attachments. Custom integration embeds that compliance inside the software your teams already use.
- Native ERP embedding
Invoices are generated, validated, and transmitted from your ERP, accounting, or billing system — staff do not switch to a separate portal for routine B2B traffic.
- Schema mapping
We map your customer master data, tax codes, line items, and references to Peppol/InvoiceNow field requirements with versioned transformation rules.
- Security & observability
OAuth credentials, payload signing where required, retry queues, and operator dashboards so finance and IT see every submission outcome.
Enterprise ERP
Data emission
API Middleware
Digital signing…
UBL 2.1 Ready
InvoiceNow / Peppol
Network waiting… Delivered · Accepted
Document Types We Support
Middleware engineered for the document mix Singapore B2B programmes actually produce — not only standard tax invoices.
Tax Invoices
B2B invoices with GST metadata, buyer identifiers, and line-level classifications for Peppol routing.
Credit Notes
Linked credit adjustments with references to original invoice identifiers for audit-friendly reversals.
Debit Notes
Upward adjustments and supplementary charges with correct tax treatment and buyer routing.
Self-Billed & Complex Cases
Programmes with self-billing, consolidated billing, or multi-entity recharge mapped to your finance policy.
Platforms We Integrate With
Our middleware bridges InvoiceNow/Peppol to the systems Singapore enterprises already run.
Xero SAP Microsoft Dynamics 365 Oracle NetSuite Odoo AutoCount Custom ERP Industry POS Infor Sage Epicor Acumatica Workday IFS
Feature Portal / generic SaaS Custom middleware
Workflow fit Portal-centric Embedded in ERP
Complex entity rules Limited Fully supported
Audit & logging Vendor-dependent Your dashboards
Peppol routing logic Basic Programme-specific
Long-term cost at scale Per-seat / per-doc fees Maintenance-based
The Xantec advantage
Why Choose Custom Middleware?
SaaS portals can work for pilots, but enterprises with ERP investments need custom InvoiceNow integration that respects existing approval matrices, multi-branch logic, and data residency expectations.
Custom middleware keeps sensitive finance payloads inside infrastructure you control, with transformation rules owned by your team — not locked inside a generic portal's workflow.
Our Integration Process
A disciplined delivery path from discovery to production — with sandbox validation before live Peppol traffic.
01
Discovery & Mapping
We document your invoice types, GST treatment, buyer identifiers, and ERP fields against Peppol/InvoiceNow requirements.
02
Middleware Build
Transformations, APIs, and admin tools implemented with staging environments mirroring production entities.
03
Sandbox & UAT
Finance and IT validate sample payloads, error handling, and reconciliation reports before go-live.
04
Go-Live & Support
Controlled cutover with monitoring, runbooks, and support options for network or schema changes.
Singapore e-invoicing
What is InvoiceNow & Peppol?
Singapore is moving GST-registered businesses toward structured e-invoicing through the InvoiceNow initiative, using the international Peppol network for B2B document exchange. Instead of emailing PDFs, suppliers and buyers exchange machine-readable invoices that finance systems can ingest automatically.
For enterprises, the operational goal is the same: compose once, route correctly, reconcile fast. Middleware makes that possible when your billing engine is SAP, Xero, AutoCount, or bespoke software — not a standalone portal.
Beyond PDF attachments
Compliant e-invoices carry structured buyer/seller identifiers, tax breakdowns, and line metadata that Peppol access points and buyer systems validate automatically.
Network routing
Peppol routes documents to the correct recipient access point using standard identifiers — critical when your customer base spans Singapore government and enterprise buyers.
Compliance context
Singapore E-Invoicing Roadmap
01
InvoiceNow adoption
GST-registered businesses are encouraged to receive invoices electronically via InvoiceNow — reducing manual processing and improving GST reconciliation.
02
Peppol for B2B
Large buyers and government suppliers increasingly expect Peppol-ready invoices. Integration early avoids last-minute portal scrambles.
Planning tip
Map your top 20 B2B buyers and billing scenarios first. Integration scope depends on document types, approval workflows, and whether invoices originate in ERP or a custom billing engine.
Start discovery before your next ERP upgrade or fiscal year close
Middleware capabilities
What Our InvoiceNow Middleware Delivers
Translation, validation, and observability between your systems and Singapore e-invoice networks.
No manual re-entry
Extract invoice data from ERP or billing jobs and transmit automatically — finance reviews exceptions, not every document.
Validation before send
Schema and business-rule checks catch missing buyer IDs or tax errors before payloads hit the network.
Status & reconciliation
Track delivery, acceptance, and failures with dashboards finance and IT can audit during month-end.
Why Xantec
Why Xantec for InvoiceNow Integration?
Singapore-registered agency · Engineering hub in Johor Bahru · Since 2006
Custom-first engineering
We map your real ERP entities and approval flows — not force-fit a generic portal workflow.
Cross-system experience
InvoiceNow programmes often touch Xero, AutoCount, and custom billing — we integrate the full chain.
Operational support
Runbooks, monitoring, and staged rollouts so network or schema updates do not surprise finance at month-end.
2006
Engineering since
SG + JB
Delivery model
0%
Middleware uptime target
Funding & scope
Implementation Scope & Singapore Grants
InvoiceNow middleware is an enterprise integration programme — pricing follows discovery outcomes: document types, entities, ERP surfaces, and reconciliation requirements.
Singapore SMEs may offset digital projects through programmes such as EDG and PSG. See our Singapore grants hub and speak with us before submission so technical scope matches grant narratives.
Enterprise Development Grant (EDG)
Innovation and capability building for qualifying Singapore enterprises modernising finance integrations.
Productivity Solutions Grant (PSG)
Pre-approved IT solutions and implementation support for eligible SMEs — subject to IMDA terms at application time.
InvoiceNow & Peppol FAQ
What is the difference between InvoiceNow and Peppol?
InvoiceNow is Singapore's initiative for GST-registered businesses to exchange e-invoices. Peppol is the international network and standards stack many InvoiceNow flows use for B2B routing. Our middleware handles the technical mapping for both.
Can you integrate with Xero or AutoCount?
Yes. We commonly connect Xero or AutoCount as the finance source (or destination) alongside Peppol transmission — see our dedicated Xero and AutoCount integration pages for related middleware patterns.
Do we have to replace our ERP?
No. The goal is to embed compliance in systems you already run. Custom middleware translates ERP data to network-ready payloads.
How do you handle rejected invoices?
Failed validations surface in an exception queue with human-readable reasons and links back to source documents — finance fixes master data or lines, then resubmits without re-keying from scratch.
What is a realistic timeline?
Pilot integrations with one ERP and a bounded document set can move quickly after discovery. Multi-entity or legacy extraction logic needs longer — we quote after a technical audit.
Explore Related Services
Ready for InvoiceNow Compliance?
Share your ERP landscape, B2B volumes, and target go-live window. We will propose a phased integration plan with sandbox milestones.