Tax Compliance Services in Singapore
Singapore tax filing, fully handled.
Corporate tax, GST, IR21 tax clearance, property tax, stamp duty and withholding tax — prepared, filed and tracked by HeySara’s IRAS-experienced tax team, so nothing slips past a deadline. Every service below links to a full guide covering eligibility, documents, step-by-step filing and penalties.
- 17% Flat corporate tax
- 9% Current GST rate
- 30 Nov Form C / C-S due
- $1M GST reg. threshold
- 5 yrs IRAS record-keeping
What we file
Every tax obligation your company faces, in one place
FORM C / C-S / ECI
Corporate Tax Filing
GST Registration & Filing
Tax Clearance for Leaving Staff
Property Tax Advisory
Stamp Duty for Shares
S45
Withholding Tax
Tax withheld on royalties, interest, services, rental and director’s fees paid to non-resident individuals and companies.
Need accounting too?
A tax calendar with two kinds of deadlines
Fixed annual dates
- 31 January — Property tax payable for the year, based on Annual Value as at 1 Jan.
- 30 November — Form C or Form C-S due for the preceding Year of Assessment — no extensions granted.
- Ongoing, per notice — IRAS enforcement actions (Notice of Assessment, composition fees) begin the day after a missed deadline.
Trigger-based deadlines
- 3 months after the financial year-end — file ECI, unless your company qualifies for the ECI waiver.
- Quarterly — GST-registered businesses e-file Form 5 within one month of every calendar quarter’s end, even if “NIL”.
- 1 month before a work pass holder leaves your company or Singapore — file Form IR21 and withhold final pay.
14 / 30 days after a share transfer document is signed (in / outside Singapore) — stamp duty falls due. - By the 15th of the second month after paying a non-resident — withholding tax is due to IRAS.
Corporate Tax Filing
| Service | Fee |
|---|---|
| Waiver of Form C for dormant companies | $200 |
| Small Business (Revenue < SGD 5 million) | From SGD 500 |
| Large Business (Revenue > SGD 5 million) | From SGD 1,000 |
| Sole proprietorship / partnership tax filing | $300 – $400 |
| Other ad-hoc tax services (e.g. personal income tax) | From $300 |
| Capital allowance / S14N R&R claims (add-on) | +$50 – $150 |
Note: Actual fee for corporate tax filing is dependent on the number and complexity of tax adjustments required.
GST Services
Service | Fee |
Voluntary GST registration | $500 |
Compulsory GST registration | $500 |
GST exemption application | $500 |
Quarterly GST submission | From $300 per quarter |
Assistance with IRAS audits & investigations | From $300/hr |
GST deregistration | $500 |
Note: Fees exclude GST where applicable. For bookkeeping and financial statement packages, see our Accounting & Bookkeeping page. IR21, property tax, stamp duty and withholding tax are quoted per engagement — WhatsApp us for a fixed price.
Why HeySara
Tax filing that doesn't rely on you remembering a date
ACRA-registered agents
Deadline reminders, not surprises
One team, full picture
Straightforward pricing
Let's get your tax filing off your desk.
Frequently asked questions
Common questions about Singapore tax filing
Most companies file Form C, Form C-S, or Form C-S (Lite), depending on annual revenue and whether you’re claiming any tax reliefs. We confirm which one applies before filing.
Estimated Chargeable Income (ECI) is due within 3 months of your financial year-end. Your full Form C or Form C-S return is due by 30 November of the following year — there are no extensions on this date.
Registration is compulsory once your taxable turnover exceeds $1 million in a 12-month period. Below that, you can register voluntarily — useful if you want to claim input tax on business expenses, but it commits you to staying registered for at least 2 years.
9%, effective since 1 January 2024. This is charged on standard-rated supplies and remitted to IRAS on a quarterly basis.
IRAS can issue an estimated Notice of Assessment, offer to compound the offence for a fee, or in continued non-compliance, summon company directors to Court. Late corporate tax filings and late GST filings are both treated as offences under their respective Acts.
Only for non-citizen employees (including PRs, in some situations) who resign, are posted overseas, or leave Singapore for more than 3 months. Singapore citizens and several lower-income or short-term non-resident categories are exempt.
No — the rate depends on your property’s Annual Value and whether it’s owner-occupied, rented out, or used commercially. Rates have been revised more than once in recent years, so we check the current bracket before advising on your specific bill.
Yes — but under Singapore law, company directors remain personally responsible for the accuracy and timeliness of what’s filed, even when the preparation work is outsourced.
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