SSIC 2025 sub-class
Other Services & Public Administration Verified · 15 Apr 202584229
Defence activities n.e.c.
This sub-class includes defence activities not elsewhere classified.
Level
final
Mapped ISIC codes
1
Source
SingStat
Official data
| Official name | Singapore Standard Industrial Classification (SSIC 2025) |
| Issuing authority | Department of Statistics Singapore (SingStat / DOS) |
| Tax authority | Inland Revenue Authority of Singapore (IRAS) (IRAS) |
| Purpose | Mandatory at ACRA business/company registration; used by IRAS, MOM, EDB, SingStat |
| Active version | SSIC 2025 (15 Apr 2025) |
| Hierarchy level | Sub-class (5-digit) (final leaf) |
| Source | https://www.singstat.gov.sg/standards/standards-and-classifications/ssic |
| Prior versions | SSIC 2020, SSIC 2015 |
When you need this code
ACRA registration
Select this code as principal or secondary SSIC when registering your business entity via BizFile+.
Licensing
Accounting and Corporate Regulatory Authority (ACRA), IRAS may require sector-specific licence. Check with authority.
Tax filing
IRAS uses SSIC for industry profiling. File Form C / C-S / C-S (Lite) via myTax Portal annually.
Banking
Banks may request your registered SSIC for KYC, merchant acquiring, and sector risk assessment.
Hierarchy
Correspondence tables
SSIC 2020
- 84229 — Defence activities n.e.c.
ISIC Rev. 5
- 8422 Defence activities
ISIC crosswalk
Compliance risk score
Compliance risk score
Moderate checks
4 of 6 factors low-risk
- ✅ Verified source ≤90d
- ✅ ISIC mapping available
- ✅ SSIC 2020 migration mapped
- ✅ Full hierarchy chain
- ⚠️ GST registration applicable
- ⚠️ Sector-specific rules?
Step-by-step guide
1. Confirm the activity matches
This sub-class includes defence activities not elsewhere classified.
Examples: •administration of defence-related R&D policies and/or related funds
2. Check ISIC crosswalk
Maps to 1 ISIC Rev. 5 class(es). Verify the international alignment matches your scope.
3. Register via BizFile+
File entity registration with ACRA at https://www.bizfile.gov.sg. Declare this SSIC code as principal or secondary.
4. Apply for sector licences
Accounting and Corporate Regulatory Authority (ACRA), IRAS — check the relevant authority for specific licence requirements and application forms.
Applicable taxes & forms
Corporate income tax
Rate: 17%
75% exemption on first SGD 10,000 + 50% on next SGD 190,000
GST
Rate: 9% (since 1 January 2024)
Threshold: SGD 1,000,000. If registered, InvoiceNow e-invoicing may apply.
Applicable filings
Form C
myTax Portal · Annual (by 30 Nov for paper, 15 Dec e-file)
Full corporate income tax return for companies. Requires audited/unaudited financial statements.
Form C-S
myTax Portal · Annual (by 15 Dec)
Simplified return for companies with revenue ≤ SGD 5M and deriving income taxed at prevailing corporate rate.
Form C-S (Lite)
myTax Portal · Annual (by 15 Dec)
Simplest return for companies with revenue ≤ SGD 200K.
Form F5
myTax Portal · Quarterly
GST return. GST-registered businesses must file within 1 month of quarter end.
Estimated Chargeable Income (ECI)
myTax Portal · Within 3 months of FYE
Compulsory for all companies. IRAS issues Notice of Assessment based on ECI.
Who uses this code
Typical professionals and business operators mapped to the Other Services & Public Administration cluster.
Charity / IPC founder
Sets up charity with Institution of Public Character status.
Typically also needs
MCCY charity registration, Commissioner of Charities compliance, IPC tax-deductible receipt rules.
Trade association executive director
Runs industry association representing member companies.
Typically also needs
ROS registration, Code of Governance for Charities and IPCs if applicable.
Freelance consultant
Provides independent advisory across multiple sectors.
Typically also needs
ACRA sole proprietor, IRAS Form B filing, Medisave contributions as self-employed.
Waste collection contractor
Collects municipal, commercial, and industrial waste.
Typically also needs
NEA waste collector licence, NEA vehicle permit, SCDF for hazardous waste.
Security agency owner
Provides security guards and surveillance monitoring.
Typically also needs
Police security agency licence, MOM employment regulations, WSH for security personnel.
Related codes
Parent class
8422 Defence ActivitiesParent division
84 PUBLIC ADMINISTRATION AND DEFENCEParent section
P PUBLIC ADMINISTRATION AND DEFENCESibling codes
Alphabetical index entries
Frequently asked questions
About this specific SSIC code and the Other Services & Public Administration sector
Can I register this code as a secondary SSIC?
ACRA allows up to two SSIC codes per registered entity: one primary and one secondary. Use the code that best describes the core economic activity first.
What happens if I choose the wrong SSIC code?
Using an incorrect SSIC may delay regulatory approvals, cause incorrect tax treatment, or affect eligibility for grants. Codes can be updated via BizFile+.
Where can I confirm the official definition?
The authoritative source is the SingStat SSIC 2025 detailed definitions workbook. This site mirrors that data but always verify against the original spreadsheet.
What ACRA filing obligations apply?
All registered business entities must file an Annual Return via BizFile+ within 7 months of their Financial Year End. Companies must also file annual tax returns with IRAS.
What is SSIC and why does it matter?
The Singapore Standard Industrial Classification (SSIC) is the national system for categorising business activities. It is mandatory at ACRA registration and is used by IRAS, MOM, and other government agencies for tax, licensing, statistical, and policy purposes.
Do I need to register with this SSIC code?
Every business entity registered with ACRA must select at least one SSIC code that best describes its principal economic activity. You can declare up to two codes — one primary and one secondary — via BizFile+.
What international standard does SSIC map to?
SSIC 2025 is aligned with the UN International Standard Industrial Classification (ISIC) Rev. 5. Each SSIC code maps to one or more ISIC Rev. 5 classes, making Singapore business data internationally comparable.
Can I hold more than one SSIC code at the same time?
Yes. ACRA allows one primary SSIC code and one secondary SSIC code per registered entity. If your business spans multiple distinct activities, choose the code that generates the highest share of revenue as primary.
How do I change my registered SSIC code?
You can update your SSIC code through BizFile+ by filing a "Change in Business Activity" transaction. Changes take effect upon ACRA approval. IRAS and other agencies should also be notified if the change affects tax classification.
Official sources
What to do next
Data source: Department of Statistics Singapore (SingStat / DOS) (https://www.singstat.gov.sg/standards/standards-and-classifications/ssic). The site mirrors official workbook data and adds deterministic cluster mapping and risk scoring. Not the authoritative source — always verify against the original spreadsheet.
Last data refresh: 15 Apr 2025. Classification version: SSIC 2025.
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