Inland Revenue Authority of Singapore

What Inland Revenue Authority of Singapore does

The Inland Revenue Authority of Singapore (IRAS) is the Singapore Government's main tax administration authority, established as a statutory board under the Ministry of Finance. It administers and enforces income tax, Goods and Services Tax (GST), property tax, stamp duty, withholding tax, international tax agreements, and various government disbursement schemes, serving individual taxpayers, corporate entities, employers, GST-registered businesses, and property owners across Singapore.

IRAS operates a comprehensive digital tax administration ecosystem anchored by the myTax Portal — a Singpass- and Corppass-authenticated portal enabling filing, payment, and secure correspondence. Core technology platforms include the Peppol-based GST InvoiceNow e-invoicing network (currently covering over 63,000 GST-registered businesses, expanding to an additional 90,000 by April 2031), Seamless Filing integrated with accounting software, the Auto Inclusion Scheme (AIS) for employment income reporting, and AI-enhanced audit and fraud detection systems. In 2025, IRAS audited over 1,300 businesses claiming GST refunds and recovered more than S$100 million in taxes and penalties. Supporting digital services include the IRAS Bot chatbot, GIRO instalment payment plans, tax calculators, and the Voluntary Disclosure Programme.

IRAS is a non-commercial government entity with no revenue-generating business model. All digital services are provided free of charge to taxpayers, and the organisation is funded through government budget allocation. Distribution is exclusively domestic through the myTax Portal, the official IRAS website, tax agent partnerships, accounting and payroll software developer integration programmes, and joint enforcement coordination with the Singapore Police Force. Its "customers" — over 300,000 companies and millions of individuals — are legally mandated users rather than paying clients, and revenue concentration risk is structurally non-applicable.

Name

Inland Revenue Authority of Singapore

Legal name

Inland Revenue Authority of Singapore

Website

https://iras.gov.sg

Company type

Private

Founded year

1992

Operating status

Operating

Headcount range

1,001–5,000 employees

Ownership category

akta.pro rank

Product category

Tax Administration Services

akta.pro primary industry

Revenue Systems, E-Filing & Digital Tax Administration (BPAIADAO)

akta.pro secondary industries

Excise, VAT/Sales Tax & Indirect Tax Administration (BPAIADAH), Withholding & Payroll Tax Administration (BPAIADAI), Taxpayer Registration, Identity & Account Management (BPAIADAB), Tax Return Filing, Processing & Assessment (BPAIADAC)

Keywords

• Tax administration services
• Government revenue collection
• Tax compliance enforcement
• Digital tax filing portal
• Gst e-invoicing network

Headquarters

HQ city

Singapore

HQ country

Singapore

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Personnel, Technology or R&D, Operations, Infrastructure

Revenue model

1. Tax Revenue Administration: IRAS is a statutory board of the Singapore government that administers and collects taxes on behalf of the government. As a regulatory body, it does not generate commercial revenue but facilitates government tax collection including income tax, GST, property tax, stamp duty, withholding tax, and other taxes.

Go-to-market motion1 record

Distribution channels4 records

Marketing channels7 records

Core offering

IRAS administers Singapore's tax system by collecting and enforcing income tax, GST, property tax, stamp duty, withholding tax, and international tax obligations through its myTax Portal digital ecosystem. The agency's core functions include tax registration, return filing, payment processing, voluntary disclosure programs, and audit/investigation enforcement with AI-driven fraud detection capabilities. IRAS also administers government disbursement schemes and operates the mandatory GST InvoiceNow e-invoicing network based on the Peppol international standard.

Product overview

IRAS operates as Singapore's primary tax collection authority, offering a unified platform of digital services centred on the myTax Portal for all taxpayer segments. The product portfolio encompasses core tax filing and compliance services (Corporate Income Tax, Individual Income Tax, GST, Property Tax, Stamp Duty, Withholding Tax, International Tax, and Pillar 2 Top-up Taxes), government disbursement schemes, and the mandatory GST InvoiceNow e-invoicing system based on the Peppol international standard. Supporting digital services include myTax Mail (secure correspondence), tax calculators, the IRAS Bot (automated assistance), GIRO payment plans (up to 12 interest-free instalments), Auto Inclusion Scheme (AIS) for employment income, and Seamless Filing from Software for corporate tax. The architecture is organized by taxpayer type (employees, employers, companies, tax agents, property owners) with shared digital infrastructure underlying all services.

Differentiator

Problem solved

Functional benefit

Brands

• myTax Portal: IRAS's secured, personalised digital portal for taxpayers to view and manage tax transactions with IRAS online

Products and services

• myTax Portal A secured, personalised digital portal that enables taxpayers to view and manage all tax transactions with IRAS, including filing returns, paying taxes, viewing notices, and accessing secure correspondence. Accessible via Singpass for individuals and Corppass for businesses and tax agents.
• GST InvoiceNow Singapore's mandatory e-invoicing system requiring GST-registered businesses to transmit invoice data directly to IRAS via the Peppol international standard network. Currently covers over 63,000 businesses with mandatory rollout expanding progressively from April 2028 to April 2031.
• Corporate Tax Filing Statutory tax filing and compliance services covering corporate income tax filings including Estimated Chargeable Income (ECI), Form C-S, Form C-S (Lite), and Form C submissions for over 300,000 companies in Singapore.
• Individual Income Tax Services Tax filing and compliance services for individuals including employment income, self-employed persons, pensioners, platform workers, and various tax relief schemes administered during the annual Tax Season.
• GST Administration Goods and Services Tax services including registration for businesses above the S$1 million turnover threshold, filing returns, claiming input tax, the GST InvoiceNow e-invoicing mandate, and compliance programmes such as Assisted Compliance Assurance Programme (ACAP) and Assisted Self-help Kit (ASK).
• Property Tax Services Property tax administration including annual valuations, tax rate calculations, objection processes, and digital services for HDB flat owners, private residential property owners, commercial property owners, and property professionals.
• Stamp Duty Services Digital stamp duty services for property transactions, share transfers, and other stampable documents including e-stamping and online duty calculations for buyers, sellers, and professionals.
• International Tax Services Services covering double taxation agreements, Common Reporting Standard (CRS), Foreign Account Tax Compliance Act (FATCA), Crypto-Asset Reporting Framework (CARF), transfer pricing, and mutual agreement procedures.
• Pillar 2 Top-up Taxes Implementation of Global Anti-Base Erosion (GloBE) Rules and Domestic Top-up Tax (DTT) for multinational enterprise groups operating in Singapore.
• Withholding Tax Services Services for withholding tax obligations on payments to non-residents including directors, professionals, public entertainers, and Supplementary Retirement Scheme (SRS) withdrawals.
• Government Disbursement Schemes Administration of government schemes including Enterprise Innovation Scheme, Progressive Wage Credit Scheme, Senior Employment Credit, and SkillsFuture Enterprise Credit on behalf of the Singapore Government.
• Voluntary Disclosure Programme (VDP) Programme enabling taxpayers to voluntarily disclose errors in their tax returns to qualify for reduced or waived penalties under specific qualifying conditions.
• Tax Agent e-Services Dedicated digital services for tax agents including access to client tax matters, seamless filing from software, External Value Network connectivity, and direct filing capabilities on behalf of their clients.
• Auto Inclusion Scheme (AIS) A digital service for employers to automatically include employment income in their employees' income tax submissions, streamlining employment income reporting.
• GIRO Payment Plan Automatic tax payment deduction service offering up to 12 interest-free monthly instalments for flexible tax payment options for individual taxpayers.
• IRAS Bot An automated chatbot digital service available on the IRAS website to assist taxpayers with general enquiries and navigation of tax services.
• Seamless Filing from Software Corporate tax filing approach enabling companies to prepare and file Form C-S and Form C-S (Lite) directly from supported accounting software, reducing manual data entry and supporting External Value Network (EVN) integration.
• Tax Calculators Interactive online tools provided by IRAS for taxpayers to calculate property tax, income tax, stamp duty, and other tax obligations.

Quantifiable outcome

• Over S$100 million recovered in taxes and penalties from 1,300+ GST audit cases in 2025
• +2 more outcomes

Named customers6 records

Segments5 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Nine partnerships are on record, tiered core and minor.

• Singapore Police Force (SPF) - Commercial Affairs DepartmentcoreOthers · 3 July 2026IRAS conducts joint investigations with the SPF Commercial Affairs Department on cases involving tax evasion combined with money laundering offences, sharing intelligence and enforcement resources to pursue criminal prosecution.
• Infocomm Media Development Authority (IMDA)coreStrategic or Co-development PartnerIMDA introduced the InvoiceNow e-invoicing system in 2019 based on the Peppol international standard, with IRAS as the recipient of invoice data from all GST-registered businesses transmitting data via the network.
• Corppass (Government Digital Identity)coreTechnology or IntegrationIRAS uses Corppass as the business digital identity system for company and tax agent authentication on myTax Portal, enabling secure access to government digital services.
• Singpass (National Digital Identity)coreTechnology or IntegrationIRAS uses Singpass for individual taxpayer authentication on myTax Portal, enabling secure access to personal tax filing and management services.
• Singapore Business Federation (SBF)minorGTM or Marketing PartnerIRAS and SBF jointly administered grant programs including JGI payouts and SGUP-CA programme. In one case, two executives of RH Kingsmen allegedly defrauded both IRAS and SBF of more than $98,000 through fraudulent grant claims.
• Accountancy and Tax Software DeveloperscoreTechnology or IntegrationIRAS partners with software developers through the #SeamlessFilingFromSoftware programme, External Value Network (EVN), IRAS Accounting Software Register Plus (ASR+), and IRAS Digital Integration Incentive (DII) to enable integrated tax filing directly from accounting software.
• Tax AgentscoreChannel Partner/ Reseller/ DistributorIRAS maintains a structured partnership with tax agents through the Tax Agent e-Services portal, providing accreditation, training, digital tools, and direct filing capabilities on behalf of their clients.
• Inland Revenue Department of PhilippinesminorStrategic or Co-development PartnerPhilippines and Singapore are negotiating an update to their nearly 50-year-old Double Taxation Agreement to modernize it and reflect current economic realities, aiming to boost bilateral trade, investment, and job creation.
• OECD and International Tax AuthoritiescoreStrategic or Co-development PartnerIRAS participates in OECD initiatives including the Pillar 2/GloBE Rules implementation, International Compliance Assurance Programme (ICAP), Common Reporting Standard (CRS), Crypto-Asset Reporting Framework (CARF), and Foreign Account Tax Compliance Act (FATCA), enabling exchange of tax information with counterpart tax authorities globally.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• United States Internal Revenue Service (IRS): The IRS administers U.S. federal income, employment, and estate/gift taxes with extensive digital services, third-party data integration (FATCA, CRS counterpart reporting), and large-scale enforcement — a benchmark peer for IRAS's evolving AI-driven audit and fraud capabilities.
• Canada Revenue Agency (CRA): CRA administers Canadian income tax, GST/HST, payroll, and international tax obligations under a single agency — directly comparable to IRAS on multi-tax-type administration, digital portals (My Account), and data-driven compliance programs.
• HM Revenue & Customs (HMRC): HMRC is the UK's tax authority with comparable statutory monopoly and digital-first myTax-equivalent services (personal tax account, Making Tax Digital). It is the closest functional peer to IRAS in terms of mandate, digital portal architecture, and breadth of tax administration.
• Inland Revenue Board of Malaysia (HASiL/LHDN): Malaysia's federal tax authority administers income tax, sales/service tax (indirect tax), and withholding tax with a digital filing portal — a near regional twin to IRAS in tax-type coverage and Southeast Asian statutory-board context.
• Japan National Tax Agency (NTA): Japan's NTA administers national income tax, consumption tax (indirect), and withholding tax — comparable to IRAS on multi-tax-type mandate, e-filing systems (e-Tax), and large taxpayer base administration.
• Inland Revenue Authority of New Zealand (IR): New Zealand's IR administers income tax, GST, and employer withholding under a single agency model similar to IRAS, with comparable digital myIR portal and direct-to-taxpayer online filing services. Useful peer for assessing end-to-end digital tax administration maturity.
• Bureau of Internal Revenue (BIR), Philippines: Philippines' BIR administers income tax, VAT, and withholding tax nationwide — comparable Southeast Asian peer to IRAS, and an active bilateral DTA negotiation partner noted in IRAS's international tax services.
• Australian Taxation Office (ATO): The ATO operates Australia's federal tax system (income tax, GST, superannuation) with sophisticated analytics, AI-led compliance, and a digital myTax-equivalent — serving as a regional comparable for IRAS's data-driven enforcement and digital services strategy.
• Hong Kong Inland Revenue Department (IRD): Hong Kong's IRD administers profits tax, salaries tax, and stamp duty with a digital eTAX portal — comparable to IRAS on statutory enforcement authority and tax-filer self-service, but typically has a narrower indirect-tax scope.

Broad incumbents

• European Commission DG TAXUD: DG TAXUD oversees EU-wide tax policy, VAT systems, and customs — relevant broader comparable to IRAS on indirect tax administration, cross-border information exchange, and digital compliance infrastructure (VIES, e-invoicing directives).

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/iras_sg
• YouTubeyoutube.com/channel/UCVWvCzqueXUdrT7VdnrnpaQ
• Facebookfacebook.com/irassg
• LinkedInlinkedin.com/company/iras
• Instagraminstagram.com/irassg
• TikToktiktok.com/@irassg

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Inland Revenue Authority of Singapore