How do I integrate with Singapore accounting software?

Apideck's Unified Accounting API lets you integrate with 8+ Singapore accounting platforms through a single API. Sign up, enable the connectors you need, and use one standardized data model to read and write invoices, payments, contacts, and more.

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Singapore accounting integrations

Q: What accounting software is popular in Singapore?

The most popular accounting platforms in Singapore include Xero, QuickBooks, Zoho Books, FreshBooks, NetSuite. Singapore is a major fintech hub in Southeast Asia. Xero and QuickBooks are popular for SMB accounting. Many global SaaS platforms have their APAC headquarters here.

Singapore is a major fintech hub in Southeast Asia. Xero and QuickBooks are popular for SMB accounting. Many global SaaS platforms have their APAC headquarters here.

8 supported accounting platforms + 6 on the radar

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Singapore accounting software market

Where the major platforms sit and which Apideck supports today. Figures are company-reported unless marked as an estimate.

Nov 2025 to Apr 2031

Phased rollout window for Singapore mandatory GST InvoiceNow reporting to all GST-registered businesses

IRAS

Xero, Jaz, Financio

Platforms directly accredited as InvoiceNow solution providers, with QuickBooks Online, Zoho Books and others connecting via partner integrations

Digital Perpetual, Xero vs QuickBooks Online for Singapore SMEs

Platform	Singapore market position	Apideck	Source
Xero	IMDA-accredited InvoiceNow Ready Solution provider, widely used among Singapore SMEs	Supported	Digital Perpetual
QuickBooks Online	Connects to InvoiceNow via partner integrations rather than direct IMDA accreditation	Supported	Digital Perpetual
Zoho Books	Popular with Singapore SMEs and supports InvoiceNow-compliant e-invoicing workflows	Supported	Digital Perpetual
AutoCount	Malaysia and Singapore-founded accounting software popular with SME retailers and F&B operators	On the radar	AutoCount
Osome	Singapore-based accounting-as-a-service platform combining software with outsourced bookkeeping for SMEs	On the radar	Osome

Subscriber and customer counts are the best available public indicators and may include accountant-managed multi-entity accounts; they are not a direct count of distinct businesses. Estimates are marked accordingly.

Singapore accounting compliance requirements

Singapore GST-registered businesses report to IRAS on a regular filing cycle and are being phased onto InvoiceNow, the Peppol-based national e-invoicing network, which will transmit invoice data directly to IRAS for near real-time GST reporting.

GST reporting to IRAS

GST-registered businesses must file returns and account for tax on standard-rated supplies to the Inland Revenue Authority of Singapore.

IRAS

GST InvoiceNow phased mandate

From November 2025 newly incorporated voluntary GST registrants must use InvoiceNow, expanding from April 2026 to all new voluntary registrants and by phases through April 2031 to every GST-registered business.

IRAS

Peppol-based 5-corner model

InvoiceNow runs on the Peppol interoperability framework and now includes a 5-corner model that routes invoice data to IRAS alongside the buyer and seller.

Avalara

SME funding support

IRAS and government partners fund InvoiceNow-ready solutions for SMEs, with support of up to SGD 1,000 available and free access to ready solutions until March 2031.

IRAS