Module9 separates information filing, tax filing and payment
IRAS’s May2026 module covers registration, designated local filing entities, the GloBE Information Return(GIR) or notification, Multinational Enterprise Top-Up Tax(MTT) and Domestic Top-Up Tax(DTT) returns, payment liability and records. Its legal framework is Singapore’s MMT Act2024, MMT Regulations2024 and Administrative Matters Regulations2025. The three filing streams are not interchangeable: a foreign GIR does not eliminate the domestic tax returns.
Who must register and the six-month deadline
Both conditions apply: UPE consolidated annual revenue of at leastEUR750million in at least two of the preceding fourFYs; and at least one SingaporeCE orJV, or anRHE incorporated or registered in Singapore. The UPE registers within six months after the relevantFY-end, subject to an extension allowed by the Comptroller. Designate GFE/DFE during registration. This is not a test of Singapore revenue alone. The module refers registration mechanics to IRAS’s Registration for MTT and DTT webpage.
Multi-parent groups do not escape shared registration liability
EveryUPE in a multi-parent group is liable to register, although the group may administratively appoint one to register. If registration fails, allUPEs of every group in the multi-parent arrangement are liable for the surcharge in equal shares. The group may also decide whichUPE fulfils theDFE-designation obligation. Administrative delegation is not a release of the otherUPEs’ statutory liability.
GFE andDFE must be the same SingaporeCE
GFE files GIR or GIR notification;DFE filesDTT. Both roles must be held by the sameCE. Use a non-excluded SingaporeUPE first; if none, a non-excluded SingaporeIPE that parents all other SingaporeCEs. If neither exists, choose a Singapore legal-personCE or registered Singapore branch of a foreign group company; failing those, a Singapore permanent establishment. Do not designate a securitisation entity unless it is the only SingaporeCE. If no qualifyingCE exists or designation fails, the Comptroller must deemGFE andDFE.
Ordinary versus transition-year filing deadlines
GIR/notification and both domestic returns are due15months afterFYE, or18months for a transition year. A transition year is the earlier firstFY when the group is within any jurisdiction’s qualifiedIIR or qualifiedUTPR law, or liable to registration underSingapore’s MMT Act. A group’s first Singapore year is not automatically its transition year if it was already in-scope elsewhere. Domestic-return extensions are subject to the Comptroller’s allowance.
The31December2025 milestone example
ForFYE31December2025, register by30June2026. If not a transition year, file by31March2027 and pay by30April2027. If a transition year, file by30June2027 and pay by31July2027. These are the module’s exact calendar examples, not a claim that all groups have the sameFYE. The general sequence isFYE+6months registration,+15/18months filing,+16/19months payment.
| FYE31December2025 obligation | OrdinaryFY | TransitionFY |
|---|---|---|
| Register and designate | 30June2026 | 30June2026 |
| GIR/notification andMTT/DTT returns | 31March2027 | 30June2027 |
| MTT/DTT payment | 30April2027 | 31July2027 |
Two examples of transition-year classification
GroupA hasFY1April2025–31March2026 and entities only in jurisdictions implementing GloBE from1January2025 onward. ThatFY is its first covered year, so GIR is due30September2027,18months later. GroupB hasFY1August2025–31July2026 but already falls under jurisdictions that implemented qualified rules before2025. It is not a transition year and GIR is due31October2027,15months later. Implementation elsewhere matters only together with the group actually being within scope.
When a foreign GIR permits a Singapore notification
GIR is the standardised information needed to evaluate GloBE top-up liabilities. GenerallyGFE files it locally. WhereGIR is filed abroad andSingapore has an agreement to receive it, notification replaces theGIR. The module further specifies notification for non-Singapore-headquartered groups where exchange from theUPE or designated foreign filing entity’s jurisdiction is expected; otherwise relevantGIR sections must be filed locally. A foreign filing alone is insufficient without the exchange conditions.
GIR format and authorised digital submission
GIR follows the OECD/Inclusive Framework information-return requirements and PillarTwo GIR XML Schema. A Corppass-authorisedGFE person submitsXML through myTax Portal. Notifications are electronic. The May2026 slides say detailed services will be announced later on IRAS’s site; this article does not invent a menu path or assume those slides describe a completed live service.
Who filesMTT andDTT, including nil returns
EachSingapore parent that is a responsible registered-group member files its ownMTT return; there can be several. The singleDFE files oneDTT return for the group. A nil tax amount still requires a nil return. These domestic returns declare and pay tax and use myTax Portal’s digital service, distinct fromGIR. Failure to file on time, or incorrect/incompleteMTT orDTT returns, can lead to estimated tax and a notice of assessment undersection49.
Payment responsibility and arrears differ
The responsible parent filingMTT pays it and bears itsMTT/interest arrears. DFE normally paysDTT; the group may decide internal cost sharing, but in arrears eachSingaporeCE, connectedSingaporeJV/subsidiary and Singapore-formed/registered/incorporatedRHE is jointly and severally liable forDTT and interest for the relevantFY. An internal allocation does not limit the tax authority to collecting only each entity’s chosen share.
An elected entity’sDTT payment and later departure
Undersection45(1), a group can elect for an eligibleCE,JV orJV subsidiary to pay its attributableDTT instead ofDFE, subject tosection45(3)’s disqualifying conditions. This module refers to those conditions rather than listing them. The elected entity pays its share. If it then leaves the group, the Comptroller may assess the group for the tax attributable to it. The payment election does not eliminate potential group exposure.
Pay within one month of the filing due date
MTT responsible member andDTT DFEmust pay within one month after their return’s filing due date, subject to allowed extension. The trigger is the due date, not an arbitrarily later actual submission date. Pay inSingapore dollars and in full. The source recommendsGIRO and also lists telegraphic transfer andPayNow for amounts belowS$200,000. It does not state that exactlyS$200,000 qualifies for thatPayNow option.
Who retains records and what they must prove
ForMTT, the responsible parent retains records. ForDTT, eachSingaporeCE, connectedSingaporeJV/subsidiary and Singapore-establishedRHE has its own record duty, beyondDFE’s filing duty. Evidence must determine groupMTT/DTT payable,CE/JV/subsidiaryETR and top-up, and verify recomputations. The module points tosection10 of the second-editionMTT/DTT e-Tax Guide for detailed record types; it does not replace that evidence with a return acknowledgement alone.
Five- and ten-year retention start from different reference years
GeneralMTT records run until31December of the fifth year after the year theMTT return is due; DTT until31December of the fifth year after theFY it relates to. Look-back calculations require ten years from those respective starting points. InGroupC’s1February2025–31January2026 non-transitionFY, MTT return due30April2027 gives generalMTT retention31December2032 andDTT31December2031. Extended records run to31December2037 and2036 respectively. Do not apply one identical expiry date to both taxes.
The deferred-tax example explains extended retention
GroupC’s FY2025 covered taxes include deferred-tax expenses outside the regulation46(3)DTL-recapture exception. Retain those expenses, DTL tracking schedules and any evidence supporting simplified recapture methods for the extended ten-year periods. The need arises from later look-back/recomputation, not merely the initial annual calculation. The slides describe obligations as atMay2026; procedural updates should be checked against IRAS’s official implementation material.
Official source
This article independently explains the substantive contents of the official PDF, including the relevant conditions, procedures and annexes. The linked document remains the authoritative source for its original wording, and later changes should be checked separately.
Read the official PDF ↗