Comparison · L6
ACRA vs IRAS vs MOM: What Each Singapore Regulator Does
ACRA owns corporate registration and AGM/AR filing; IRAS owns income tax, GST, and withholding tax; MOM owns work passes and employment-side rules including foreign worker quotas.
Top 5
- ACRA — Accounting and Corporate Regulatory Authority. Maintains the corporate registry; receives Annual Returns and AGM filings via BizFile; administers the Companies Act 1967, LLP Act 2005, and Business Names Registration Act 2014.
- IRAS — Inland Revenue Authority of Singapore. Administers the Income Tax Act 1947, the GST Act, withholding tax, stamp duty, and various tax incentive schemes; issues Notices of Assessment and Certificates of Residence.
- MOM — Ministry of Manpower. Administers Employment Pass, S Pass, Work Permit, EntrePass, and the COMPASS framework; oversees employment law, Employment Act, foreign worker levies, and workplace safety.
- EDB and Enterprise Singapore are statutory boards that complement these regulators on incentive and ecosystem programmes (Tech.Pass, Startup SG, etc.) rather than as primary tax/employment regulators.
- MAS administers fund tax incentives (13O / 13U) and financial-services licences but does not regulate non-financial business operations broadly.
Side-by-side comparison
| Domain | ACRA | IRAS | MOM | |
|---|---|---|---|---|
| Corporate registration / incorporation | Yes — primary registrar | No | No | |
| Annual Return / AGM filing | Yes — BizFile | No | No | |
| Income tax (corporate and personal) | No | Yes — primary regulator | No | |
| GST registration and filing | No | Yes — primary regulator | No | |
| Withholding tax | No | Yes — primary regulator | No | |
| Work passes (EP / S Pass / WP / EntrePass) | No | No | Yes — primary regulator | |
| COMPASS framework | No | No | Yes — primary regulator | |
| Foreign worker levy and quota | No | No | Yes — primary regulator | |
| CPF (Central Provident Fund) | No | No (administered by CPF Board) | Employment-side rules; CPF Board is the primary CPF regulator |
Methodology
Detailed analysis
Accounting and Corporate Regulatory Authority — Corporate Registry
Best for: Incorporation, business registration, Annual Return filing, AGM compliance, change of corporate particulars, business profile retrieval, and statutory filings under Companies Act / LLP Act / Business Names Registration Act.
Pros
- Single online channel (BizFile) for nearly all corporate filings — incorporations, AR, change of director, change of registered office.
- Pre-filled fields in BizFile reduce filing errors year-on-year.
- Corporate registry is publicly accessible — third parties can verify counterparties via Bizfile profile lookups.
Cons
- Persistent late filing escalates from financial penalty to director-level enforcement to ultimate striking off.
- AGM and AR deadlines (6 months and 7 months after FYE) require year-round compliance discipline.
- BizFile changes affect filing flows; users need to track ACRA notifications.
Cost: Engagement scope and pricing scoped per case during the strategy call.
Source: ACRA — Setting up a Local Companyverified 2026-05-02
Inland Revenue Authority of Singapore — Tax Administration
Best for: Corporate income tax, personal income tax, GST registration and filing, withholding tax filings, stamp duty, Certificates of Residence, tax exemption scheme applications, Auto-Inclusion Scheme participation.
Pros
- Central role in the Singapore tax framework — single counterparty for income tax, GST, WHT, and most tax incentives.
- IRAS published e-Tax Guides give the authoritative interpretation of the legislation.
- Auto-Inclusion Scheme reduces friction in employee tax filing for participating employers.
Cons
- Tax filing deadlines are non-discretionary — 30 November for corporate income tax (Form C-S/C); 18 April e-filing or 15 April paper filing for personal income tax.
- GST filing (quarterly by default) adds compliance burden once registered.
- WHT filing is due 15th of second month after payment — easy to miss without calendar discipline.
Cost: Engagement scope and pricing scoped per case during the strategy call.
Source: IRAS — Corporate Income Taxverified 2026-05-02
Ministry of Manpower — Workforce and Employment Administration
Best for: All work pass applications and renewals, COMPASS framework compliance, foreign worker levy and quota management, employment law (Employment Act), workplace safety and health, foreign domestic worker matters.
Pros
- Single portal for work pass applications and renewals (MOM EP Online, S Pass System, EntrePass channel).
- Published frameworks for each pass type with clear eligibility and renewal criteria.
- COMPASS introduced points-based transparency for EP applications since 1 September 2023.
Cons
- Sector-specific rules (construction, manufacturing, services) make Work Permit hiring complex.
- Foreign worker quota and Dependency Ratio Ceiling cap hiring at scale.
- Pass renewal review increasingly substantive — past pattern is no longer sufficient predictor.
Cost: Engagement scope and pricing scoped per case during the strategy call.
Source: MOM — Passes and Permitsverified 2026-05-02
Decision framework
Need to register a new company or update corporate particulars?
ACRA via BizFile.
Need to file corporate or personal income tax, register for GST, or apply for a tax incentive?
IRAS via myTax Portal or e-Services.
Need to apply for or renew a work pass, manage foreign worker levy, or review COMPASS positioning?
MOM via the relevant pass-specific online channel.
Need to apply for fund tax incentives (13O / 13U) or financial services licensing?
MAS — separate regulator from the three above; administers the financial-services framework.
Frequently asked questions
- Where do CPF contributions sit in this regulator map?
- CPF is administered by the CPF Board, a separate statutory board. MOM owns the broader employment-side rules and intersects with CPF Board on employer CPF obligations. CPF reporting and contribution submissions go through CPF Board channels.
- When does ACRA share information with IRAS or MOM?
- Government agencies share data under approved frameworks for compliance and administrative purposes. ACRA-filed financial statements are visible to IRAS for tax assessment; MOM cross-references ACRA records when validating employer information for pass applications.
- Which regulator handles the registration of a sole proprietorship?
- ACRA. Sole proprietorships register under the Business Names Registration Act 2014 administered by ACRA. The owner files personal income tax with IRAS based on the sole proprietorship's profits.
- Which regulator owns Auto-Inclusion Scheme (AIS) for employment income?
- IRAS administers AIS as part of personal income tax administration. Employers participating in AIS submit employee income data electronically to IRAS who pre-fills the employee's tax return.
- What if I get conflicting guidance from different regulators?
- Each regulator administers its own legislation; their remits do not produce direct conflicts. Where a single transaction touches multiple regulators (for example, ESOP touches IRAS for tax and ACRA for share-issue filing), each regulator's rules apply independently. Conflicting interpretations should be resolved with both regulators rather than relying on one alone.
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