SPI or MPI under Singapore's PSA 2019? Understand the thresholds, capital requirements, and compliance obligations to choose the right MAS payment licence tier.

If you are setting up a payment services business in Singapore, one of the first regulatory decisions you face is which licence tier to apply for: the Standard Payment Institution (SPI) or the Major Payment Institution (MPI) under the Payment Services Act 2019 (PSA).

The two tiers are not interchangeable. One is capped by transaction volume; the other is not. They carry different capital requirements, different security deposit obligations, and different safeguarding mechanics. Choosing the wrong tier at the outset — or treating the SPI as a cost-saving shortcut — creates regulatory friction that is difficult and expensive to unwind mid-operation.

This article sets out the key differences between the SPI and MPI tiers, explains when each applies, and provides a structured framework for making the right decision before you file your application with MAS.

The PSA 2019 Licensing Framework

The Payment Services Act 2019 governs payment services in Singapore on an activities-based model. Rather than licensing a business type, MAS licenses specific payment activities. There are seven regulated activities under the PSA:

• Account issuance service
• Domestic money transfer service
• Cross-border money transfer service
• Merchant acquisition service
• E-money issuance service
• Digital payment token (DPT) service
• Money-changing service

The PSA establishes three licence classes to cover these activities: the Money-Changing Licence (restricted to physical currency exchange), the Standard Payment Institution, and the Major Payment Institution. The SPI and MPI both cover the same six non-money-changing activities. The difference lies in scale and the obligations that attach to it.

The PSA has been in force since 28 January 2020. The Payment Services (Amendment) Act 2021 expanded the scope of regulated activities — including cross-border money transfer and DPT services — with those amendments commencing in tranches from 4 April 2024. Any operator providing regulated payment services in Singapore, including offshore-incorporated entities with a Singapore-facing user base, must hold the appropriate licence.

Standard Payment Institution: Scope and Limits

The SPI licence permits an operator to carry on any one or more of the six non-money-changing regulated activities, subject to hard transaction-value caps set out in the PSA. The thresholds are:

• SGD 3 million in monthly transaction value for any single regulated activity (averaged over 12 months)
• SGD 6 million in aggregate monthly transaction value across two or more regulated activities (averaged over 12 months)
• SGD 5 million in outstanding e-money issued at any time, with a separate SGD 5,000 cap on the e-money balance held for any single individual

The SPI requires a minimum base capital of SGD 100,000 on a continuing basis. There is no security deposit obligation at the SPI tier. The AML/CFT framework under MAS Notice PSN01 applies to specified payment services, and Notice PSN02 applies if the firm carries on a DPT service. Safeguarding obligations under PSN05 and PSN07 apply at a scale calibrated to the operator’s activity.

Breaching any of these thresholds is a supervisory event.

An SPI that crosses any cap is required to either upgrade to an MPI licence or implement a MAS-accepted remediation plan. The SPI is an appropriate starting point for an operator whose projected volumes sit clearly below the caps and who has a mapped upgrade path to MPI. It is not a permanent alternative for a business with material growth ambitions.

Major Payment Institution: Scope and Obligations

The MPI licence permits an operator to carry on any one or more of the six non-money-changing regulated activities at unrestricted scale. There are no monthly transaction-value caps at the MPI tier. This makes it the standard licence class for cross-border remittance operators, multi-currency e-wallet providers, merchant acquirers, and DPT service providers with material monthly volumes.

The MPI carries higher regulatory obligations than the SPI:

• Base capital: SGD 250,000, maintained on a continuing basis and reported quarterly to MAS
• Security deposit: SGD 100,000 lodged with MAS where projected monthly transaction value is below SGD 6 million; SGD 200,000 where it is SGD 6 million or above. The deposit is held in addition to base capital, in cash or bank-guarantee form, and is released on cessation of the licence subject to outstanding obligations.
• Safeguarding of customer money: MPIs carrying on e-money issuance must safeguard the float under MAS Notice PSN07. MPIs carrying on account issuance, domestic money transfer, cross-border money transfer, or merchant acquisition must safeguard customer money under MAS Notice PSN05. Three options are available: a full-liability undertaking from a safeguarding institution, a bank guarantee, or a trust account maintained with a safeguarding institution.
• AML/CFT compliance: PSN01 for specified payment services. PSN02 if the firm carries on a DPT service, including the Travel Rule for transfers of SGD 1,500 or more.
• Governance: At least one executive director who is a Singapore Citizen, Permanent Resident, or Employment Pass holder, and another director who is a Singapore Citizen or Permanent Resident. All directors, controllers, the CEO, and the AML/CFT compliance officer are subject to MAS fit-and-proper assessment.
• Technology risk management: The application file must document the production technology stack, data-residency posture, disaster-recovery arrangements, third-party dependency map, and operational resilience plan, aligned with the MAS Notice on Technology Risk Management.

The safeguarding arrangement is the single largest operational build for an MPI. It must be in place at the point of commencing regulated operations — not after the licence has been issued. Operators who plan to establish the safeguarding account after approval misread MAS’s expectations and typically encounter significant delays during the pre-application review.

SPI vs MPI: Side-by-Side Comparison

How to Choose the Right Tier

The practical starting point is your projected transaction volume over the first 12 months of operation. But volume alone is not the only variable. The following questions structure the decision:

1. What regulated activities will you carry on? List every payment service you intend to offer under the PSA. The licence must cover all of them at the point of application. Adding activities after licensing requires a separate variation application.
2. Do your projected monthly volumes exceed the SPI caps? If any single activity is projected to exceed SGD 3 million per month, or your aggregate across two or more activities is projected to exceed SGD 6 million per month, you must apply for an MPI. There is no discretion here — the threshold is statutory.
3. What is your growth trajectory within the first 18 months? If your 12-month projections sit below the SPI caps but you expect to cross them within 18 months, applying at MPI from the outset is more efficient. An SPI-to-MPI upgrade requires a separate licence variation application, additional capital, and a security deposit — all mid-operation, when regulatory friction is most costly.
4. Are you offering DPT services? DPT operators with material volumes should apply at MPI from the start. The compliance infrastructure required for DPT services — Travel Rule obligations, asset segregation, external auditor assessment, and technology risk management — is substantively the same whether you hold an SPI or MPI. The incremental cost of MPI capital and security deposit is recovered quickly against the cost of upgrading mid-stream.
5. Do you require institutional counterparty credibility? An MPI licence carries greater weight with institutional partners, correspondent banks, and offshore regulators than an SPI. For operators targeting institutional clients, payment infrastructure partnerships, or cross-border regulatory recognition, the MPI tier is the standard expectation.

In practice, the SPI is the right starting tier for a genuinely pre-commercial or early-stage operator with conservative volume projections and a clear upgrade timeline mapped into the business plan. For most founders with real commercial ambitions in Singapore’s payment services market, the MPI is the appropriate first licence.

What Changed in 2024: New Application Requirements

MAS revised the Guidelines on Licensing for Payment Service Providers (PS-G01) on 26 July 2024, with the changes taking effect from 26 August 2024. These revisions affect all new SPI and MPI applicants, and operators who were preparing applications under the previous guidelines need to account for them.

The key changes are:

• Mandatory legal opinion: All new SPI and MPI applicants must now submit an independent legal opinion as part of their application. The opinion must assess how the proposed services and products constitute regulated payment services under the PSA, analyse fund flows, and identify any applicable exemptions. It must be issued by a law firm with PSA advisory experience in Singapore.
• Independent external auditor assessment for DPT: Applicants seeking to carry on DPT services must additionally submit an independent external auditor assessment covering their AML/CFT policies, procedures, and controls, as well as consumer protection obligations.
• Case-on-hold process: MAS introduced a formal case-on-hold procedure. Applications assessed as insufficiently ready for review may be placed on hold for up to six months. This is a significant change from previous practice, where applicants could expect a question loop regardless of preparation quality. A held application can materially extend the timeline and increase advisory costs.

The practical effect is that the application file must be near-complete before lodgement. The pre-application meeting with MAS — where the operator presents the business model, volume projections, technology stack, safeguarding arrangement, and AML/CFT framework — is now the substantive submission. The formal lodgement follows as documentary confirmation. Operators who skip the pre-application engagement and lodge directly risk both a held application and a significantly longer timeline.

Common Mistakes When Choosing a Tier

Several recurring errors appear in SPI and MPI applications. Understanding them in advance prevents avoidable delays and costs.

• Choosing SPI to reduce upfront cost. The capital and security deposit difference between SPI and MPI is real but modest. The cost of upgrading from SPI to MPI mid-operation — including a new variation application, additional capital injection, security deposit lodgement, updated compliance documentation, and the associated legal fees — typically exceeds the initial saving. If your volumes are likely to cross the SPI thresholds within 18 months, apply at MPI from the start.
• Treating the safeguarding requirement as post-licence setup. MAS expects the safeguarding arrangement — trust account, bank guarantee, or institutional undertaking — to be identified and documented at the pre-application stage, not established after the licence is issued. Applicants who cannot demonstrate a credible safeguarding plan during the review are likely to have their application placed on hold.
• Assuming offshore incorporation exempts you from the PSA. The PSA’s jurisdiction extends to any operator providing regulated payment services in Singapore by way of business, regardless of where the entity is incorporated. A digital interface marketed to Singapore residents in Singapore Dollars is a Singapore-facing operation. MAS has coordinated with overseas regulators on cross-border enforcement and has issued public warnings against unlicensed cross-border remittance and DPT activity.
• Under-resourcing the application file. Since August 2024, the legal opinion, technology risk management documentation, AML/CFT framework, and fit-and-proper files for all key personnel must all be in near-final form before lodgement. A thin or incomplete file is a case-on-hold trigger. The quality of the pre-application engagement — and the documentation supporting it — is the single largest determinant of application timeline.

Frequently Asked Questions

Can I upgrade from an SPI to an MPI after my business grows?

Yes. An SPI holder can apply to MAS to vary its licence to the MPI tier. However, the variation application requires a substantive new submission — including updated capital evidence, security deposit arrangements, and compliance documentation. It is not an administrative step. If your volume projections point toward the MPI thresholds within 12 to 18 months of launch, applying at MPI from the outset is more cost-effective.

Does the SPI tier have lower AML/CFT requirements than MPI?

No. Both tiers follow the same notices for the same activities: PSN01 for specified payment services, PSN02 for DPT. The AML/CFT obligations are structurally the same across both tiers. The practical cost difference between SPI and MPI sits at the capital, security deposit, and safeguarding lines — not at compliance.

Does a DPT service provider need an MPI licence?

Not necessarily. A DPT service provider can hold either an SPI or an MPI, depending on transaction volumes. However, for DPT operators with material volumes or institutional client ambitions, the MPI is the standard operating tier. Additionally, since 30 June 2025, Singapore-incorporated entities providing digital token services to overseas clients must hold a Digital Token Service Provider (DTSP) licence under the Financial Services and Markets Act 2022, separate from the PSA framework.

How long does an MPI application take?

For a well-prepared applicant, the indicative timeline from MAS pre-application engagement to licence-in-principle runs 12 months or more, with no firm upper bound. Complex business models — multi-corridor cross-border transfers, DPT services at scale, or novel technology stacks — tend toward the longer end. Application preparation quality is the primary variable within the applicant’s control.

Is a physical office in Singapore required?

Yes. Both SPI and MPI applicants must be incorporated in Singapore or registered as a foreign company branch in Singapore with a permanent place of business. MAS has scrutinised the substance of local presence more closely since the 2024 Guidelines revision. A registered address without genuine operational presence does not satisfy this requirement.

Choosing the Right Tier Before You Apply

The SPI and MPI are not interchangeable options on a sliding scale — they reflect two different operating profiles. The SPI is a structured starting point for sub-threshold operators with a defined growth plan. The MPI is the standard licence for any operator with material transaction volumes, DPT services, or institutional counterparty requirements.

The 2024 amendments to the MAS licensing guidelines have raised the bar for all new applications. A legal opinion is now mandatory. A case-on-hold process is now in place. And the pre-application engagement with MAS has become, in effect, the substantive licence review. Getting the tier selection and the pre-application file right before lodgement is no longer optional — it directly determines your timeline and your probability of first-pass approval.

For operators building payment infrastructure in Singapore — whether in cross-border remittance, e-money, merchant acquiring, or DPT and VASP services — the licensing decision is one part of a broader regulatory and operational setup. It connects directly to your corporate structure, your banking and EMI relationships, and your AML and compliance framework. Each of these needs to be aligned before your first MAS pre-application meeting.