Notice Response in Singapore
Answer a notice from a Singapore authority inside the deadline it sets. These are the notice types the research run documented, each with the response the authority actually requires. A deadline the research could not confirm is shown as unconfirmed rather than guessed.
2–10 business days
SGD
What we will need from you
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Notice of Assessment (NOA) - corporate income tax - IRAS assesses the company's tax after the Form C-S/C is filed, or issues an estimated NOA where ECI/return is not filed.
If the company disagrees, it must file a Notice of Objection within 2 months of the date of the NOA (via myTax Portal); tax on an estimated NOA is generally payable within 1 month regardless of objection. (not verified against the authority's own page)
GST assessment / demand for GST - Late filing, non-filing or errors in a GST F5 return, or an audit adjustment.
File/correct the return and pay the assessed GST plus any late-payment penalty; object within the prescribed window if disputing. (not verified against the authority's own page)
ACRA enforcement / late-filing penalty notice - Failure to hold an AGM, file the annual return, appoint a company secretary within 6 months, or maintain/file the RORC.
Rectify the default (make the outstanding filing/appointment) and pay the late-lodgment penalty; directors may face composition or prosecution for continued default.
Trade mark opposition / objection - A third party opposes the mark within the 2-month publication window, or the examiner raises objections during examination.
File a counter-statement / response within the prescribed period via IPOS Digital Hub; a foreign applicant needs a Singapore address for service (or a local agent) to respond.
Patent examiner's written opinion / objection - Search/examination raises a written opinion (e.g. PF13A) with objections to novelty, inventive step or claims.
Respond to the written opinion (amend claims / argue) within the prescribed period; from 1 Apr 2026 excess-claim fees (S$80 per claim over 15) are payable at the response stage.
Cost breakdown
Our fee and the government’s are always separate lines. Government fees are passed through at exactly what the authority charges — we add nothing to them.
| Authority fee, where the notice carries oneonly if it appliesA notice fee depends on the notice and the stage it is answered at, and the research records no single published figure. | Confirmed before payment |
| Comriq professional fee | Fixed fee within 1 business day |
How it runs
You will see these exact stages update in your client portal as we progress.
Notice Reviewed
Notice read, authority and deadline identified.
Position Agreed
Response strategy agreed with you.
Response Filed
Reply submitted to the authority within its deadline.
Indicative guidance — confirmed before payment
Requirements and statutory fees are set by Inland Revenue Authority of Singapore (IRAS) and change without notice. This page is general information, not legal or tax advice. Your engagement letter and quote are the binding documents.