I remember the quiet after closing the office lights for the last time in a busy year. There was relief, and also a knot of worry about paperwork left behind. This guide speaks to that mix of feeling.
It will explain, step by step, what a dormant company means and what still must be filed. You will learn how the registry and the tax authority split duties and why both views matter to directors and secretaries.
The guide previews practical actions: checking dormancy status, filing a nil return if needed, using IRAS digital services, and applying for a waiver when eligible. It also flags the risk of missed deadlines and penalties, and notes what changes when the business restarts.
Key Takeaways
- Understand what makes a company inactive and what filings remain mandatory.
- Know the split between the corporate registry and the tax authority.
- Learn how to file a nil return and when to seek a filing waiver.
- Keep clear records and meet the year-end deadline to avoid penalties.
- This guide is aimed at directors, secretaries and owners pausing trade but keeping options open.
Understanding what “dormant” means in practice
Start by separating the two official definitions: one used by the corporate registry and one used by the revenue authority.
ACRA’s practical test
ACRA treats a company as dormant when there are no accounting transactions in the financial year. Small compliance payments do not automatically break that status.
Permitted maintenance activities that usually do not end dormancy include paying a company secretary, appointing auditors, keeping a registered office and statutory registers, and settling modest statutory fees.
IRAS’s income-based view
IRAS looks at business activity and income across the entire basis period. If the company carries on business or earns income in that period, it won’t qualify as inactive for income purposes.
Why this matters: the registry definition shapes annual returns and basic accounting records, while the revenue perspective decides whether you must file income returns or a nil submission.
Mapping the basis period is essential. A short spell of activity or a single receipt in a given year can change the form you must submit and whether financial statements or statements tax computations are needed.
In short: classify the company correctly to reduce rejected filings, queries from a regulatory authority, or later adjustments.
Ongoing compliance even when your company is dormant
Even when trading pauses, a company still needs basic housekeeping to stay legally sound. Dormancy cuts routine tasks, but it does not remove core corporate maintenance obligations with the accounting corporate regulatory body.
Annual filings with the Accounting and Corporate Regulatory Authority
Keep the company’s status current and meet filing windows on time. ACRA recognises inactivity while still requiring annual returns and records to be accurate.
Maintaining a company secretary, registers, and the registered office
Legally, a company must have a company secretary (usually appointed within six months) and a registered office address.
Statutory registers and minute books should be kept up to date. These are routine compliance costs rather than trading expenses.
- Use a simple compliance calendar: financial year end, ACRA filing dates and annual filing deadlines.
- Ensure the secretary retains resolutions and statements to prove no activity if the regulatory authority queries status.
- Good housekeeping makes later filings or a waiver application clearer and faster.
tax obligations for dormant companies singapore: what you must file (and by when)
Start by knowing exactly which corporate return you must submit even when there is no trading activity.
What to file: Each company will normally submit either Form C-S, Form C-S (Lite) or Form C depending on its profile and allowable concessions. Even where there is no assessable income, a nil income tax return is required unless a waiver has been granted.
Nil filing explained: A nil filing declares no business receipts and no taxable income for the basis period. It satisfies the legal duty to lodge an annual return while recording that the company had no chargeable income.
Key date: File the chosen form by 30 November each year. Missing this date can trigger queries or penalties, so diarise the deadline well ahead of your financial year end.
Financial statements and statements tax computations: When using IRAS’s “File Form for Dormant Company” digital service, you generally do not attach financial statements through that route. The main exception is where the company ceased during the period or had earlier activity. In that case, IRAS may require financial statements and statements tax computations up to the cessation date.
Directors should keep proof of the cessation date, evidence of no income, and clear records of any investments and their income (if any). That documentation helps reconcile ACRA’s dormancy view with IRAS’s income-based assessment and avoids late follow-ups.
How to file your dormant company tax return via IRAS myTax Portal
Use IRAS’s dedicated portal to declare no business receipts and complete the annual return with minimal fuss.
Pre-filing checklist
Before you begin: confirm you have CorpPass access as an Approver for Corporate Tax (Filing and Applications).
Ensure Singpass is available and note the company’s Unique Entity Number. Keep documents ready to show no business activity or income.
Using the online service
Log into myTax and choose the “File Form for Dormant Company” digital service. The form is designed for a straightforward nil submission.
Expect a short sequence of questions and simple confirmations only. If you use form c-s where applicable, follow the prompts and complete the form in one session.
Timing, acknowledgements and records
Set aside at least five minutes. After 15 minutes idle the portal prompts; if no reply within two minutes it logs you out.
“Complete the filing, then save the instant acknowledgement.”
Download or screenshot the receipt and keep a copy with annual compliance files. A clear audit trail helps if IRAS queries filings or when you apply for a waiver or strike-off.
How to apply to IRAS for a waiver from filing Form C-S/Form C
If you want to stop annual form submissions while the company stays inactive, a waiver from IRAS may be appropriate.
When a waiver is the right objective: apply if the company will remain a dormant company and you want to end recurring Form C-S or Form C filing requirements.
Qualifying checklist
- The company must be a dormant company and have lodged all required forms up to the cessation date.
- No intention to restart business within the next 2 years must be confirmed.
- No investments that produce income; if investments exist, they must generate no dividends, rental or interest.
- If previously registered for Goods Services Tax, deregistration must be completed before you apply.
How to apply and timing
Use the digital route at mytax.iras.gov.sg via “Apply for Waiver / File last Form C-S / C (Dormant/ Striking Off)”.
Hardcopy applications have not been accepted since 1 Oct 2021. After you submit the application, IRAS allows 21 days to file any outstanding or advance years and to attach financial statements and statements tax computations where needed.
Outcome and special cases
Electronic applications are usually processed within two months. Retrieve the outcome letter under “View Corporate Tax Notices/ Letters” in myTax.
If you set email notice preference you will get a notification in 1–3 working days; otherwise a paper letter is sent to the registered address.
“File any outstanding returns and attach supporting accounts within 21 days or the application may be rejected.”
When a written application is allowed
IRAS accepts a written application only where the sole director is deceased or bankrupt. Include the company name, UEN, the cessation date (dd/mm/yyyy), confirmations on no business or income, and the required financial statements and tax computations for outstanding years.
Handling tricky scenarios: cessation dates, financial years, and advance Years of Assessment
Stopping trading in mid-year often creates multiple filing windows that directors must map carefully.
How the timing works: the company’s financial year end sets the basis period. The basis period then maps to a specific Year of Assessment (YA). Mistakes in this mapping cause incorrect nil submissions and late queries.
Mapping financial year end to basis period and Year of Assessment
Simple method to map dates:
- Identify the financial year end (FYE).
- Confirm the basis period start and end that align with that FYE.
- Find which YA the basis period maps to (YA is the year after the basis period end).
If the business ceased partway through a financial year, treat the cessation date as a cut‑off. That cut often creates a need to file for the final full basis period and for the partial period up to cessation.
Worked example (IRAS guidance made plain)
Company B has a 31 Dec FYE and stopped trading on 31 Mar 2025. It therefore must file:
| FYE / Basis period | Basis period dates | Year of Assessment (YA) |
|---|---|---|
| Full year | 1 Jan 2024 – 31 Dec 2024 | YA 2025 |
| Partial year to cessation | 1 Jan 2025 – 31 Mar 2025 | YA 2026 |
| Waiver application effect | Waiver filed Aug 2025 opens 21‑day window | Allows filing the advance YA 2026 Form C‑S/Form C |
Advance YA explained: if you apply for a waiver, IRAS gives a 21‑day period to file an advance YA return and any required financial statements or statements tax computations. Without that window you may be limited to standard YA filing channels.
“Keep a clear copy of board minutes, cessation evidence and myTax acknowledgements to support your timeline.”
Compliance tip: if any income arose after the cessation date — including investment receipts — revisit the status and filing approach before submitting a return or an application.
Need help with forms or the waiver workflow? See the linked terms and guidance on our site: waiver and filing guidance.
When your dormant company restarts: notifying IRAS and getting back into regular filing
When activity restarts, the company’s reporting status must be updated promptly to reflect the change.
Trigger to exit dormancy: the moment the company recommences business activity or receives income, the compliance view changes and you must act.
Notification deadline and required details
You must notify IRAS within one month of the recommencement date or the date income is first received, whichever is earlier.
- Prepare the company name and UEN, a valid email and contact number, and the effective date of recommencement.
- If principal activity has changed, attach an updated ACRA business profile to keep records aligned.
What may be claimed once active
A company cannot claim capital allowances or deduct expenses in a year when it is inactive. Claims resume when the company is genuinely trading again.
Unused trade losses from earlier active years may be offset against later income if the shareholding test is met. Check ownership changes before relying on these reliefs.
| Notification item | What to include | Deadline |
|---|---|---|
| Basic details | Company name, UEN, contact email and phone | Within 1 month |
| Dates | Recommencement date or first income date | Within 1 month |
| Activity update | New principal activity and ACRA profile if changed | With notification |
“Failure to inform IRAS is an offence and may lead to enforcement action against the company and directors.”
Next step: after notification, switch from dormant-only submissions to regular annual filing and complete the appropriate income tax return or Form C-S when due.
Conclusion
Finish by confirming status, saving receipts and noting key dates in a simple calendar.
Summary: A dormant company still has ongoing obligations and must be classified correctly under both the registry and revenue views. Keep clear proof that no income arose and keep records of any cessation date.
Unless a waiver is granted, most dormant companies lodge a nil corporate income return by the annual deadline and retain the acknowledgement as evidence.
Watch common pitfalls: mismatch of basis periods and YA mapping, missing the 21‑day window after a waiver application, and delayed notification when the business restarts.
Checklist: confirm status, confirm filings to cessation, apply or file correctly, and notify IRAS within one month of recommencement.
FAQ
What does “dormant” mean under ACRA and IRAS?
Which transactions do not break dormancy under ACRA?
Why does the dormancy definition matter for filings and computations?
What ongoing compliance is required even when a company is dormant?
Which corporate income tax return should a dormant company file?
What does “nil filing” mean and when is it due?
Do I still submit financial statements to IRAS if I use the dormant-company digital service?
When are financial statements and tax computations still required?
What do I need before filing a dormant-company return on the IRAS myTax Portal?
How does the “File Form for Dormant Company” digital service work?
Can IRAS grant a waiver from filing Form C-S or Form C?
What about GST and waiver applications?
How do I apply for a waiver and what is the digital route?
What is the 21-day rule after applying for a waiver?
How long does IRAS take to process waiver applications and how will I receive the outcome?
Are there situations where a written application is still needed?
How do financial year ends, basis periods and Years of Assessment tie together when a company ceases?
Can you give a simple worked example of cessation and filing?
When must I notify IRAS if the dormant company restarts?
What information must I provide when notifying recommencement?
What reliefs or claims are available when a dormant company restarts?
What compliance risks exist if I fail to inform IRAS about changes?
Dean Cheong, CEO of VOffice, is a Singapore-based specialist in scaling B2B businesses. His work centers on optimizing sales operations, launching effective go-to-market strategies, and leveraging CRM tools to drive consistent revenue expansion. With a foundation in business banking and finance from Nanyang Technological University, Dean brings both strategic insight and real-world execution to every engagement.