Competition Law and Digital Wallet Market Competition

1. Introduction

Digital wallets are electronic payment platforms that allow consumers to store payment credentials or funds and make payments through smartphones, websites, QR codes, NFC, or other digital interfaces. Examples include Paytm Wallet, Amazon Pay, Apple Pay, Google Pay, Samsung Wallet and similar payment applications.

From a competition-law perspective, digital wallets are unusual because they operate simultaneously across several markets:

• payment services;
• mobile operating systems;
• app stores;
• banking and financial services;
• merchant-acquiring services;
• digital advertising;
• e-commerce;
• data and identity services; and
• digital-platform ecosystems.

The central competition-law question is therefore not simply whether one wallet has a large market share. It is whether a wallet operator can use network effects, data, interoperability restrictions, default settings, ecosystem control, exclusivity, tying or self-preferencing to prevent competitors from competing effectively.

In India, this question has become particularly important because the digital-payments ecosystem combines wallets with UPI applications. The CCI has specifically recognised that UPI payment applications constitute a technologically dynamic market and has examined competition between Google Pay, PhonePe, Paytm and other applications.

2. Meaning and Structure of the Digital Wallet Market

A digital wallet can perform several functions:

1. Storage of payment credentials or value
2. Payment initiation
3. Merchant payments
4. Peer-to-peer transfers
5. Online checkout
6. Contactless/NFC payments
7. Loyalty and rewards
8. Credit or buy-now-pay-later services
9. Identity authentication
10. Integration with banking and e-commerce ecosystems

The competitive structure can therefore be represented as:

Consumer → Wallet/App → Payment Infrastructure → Bank/Card Network → Merchant

But modern digital wallets increasingly operate as ecosystems:

Operating System → App Store → Wallet → Payment Network → Merchant → Data → Advertising/E-commerce

This creates opportunities for vertical leverage.

For example, an operating-system provider that owns a wallet may control:

• access to NFC;
• default payment settings;
• app distribution;
• authentication;
• device APIs;
• payment tokens;
• user data.

Consequently, competition may be harmed even where consumers can technically download competing wallets.

3. Relevant Market

The first major competition-law issue is market definition.

Under Indian competition law, Section 2(r) of the Competition Act, 2002 defines the relevant market through the relevant product market and relevant geographic market.

For digital wallets, possible relevant-product markets include:

A. Market for digital wallets

This may include prepaid/mobile-wallet services used for:

• merchant payments;
• peer-to-peer transfers;
• online payments.

B. Market for UPI payment applications

This is narrower than the entire digital-payments market.

The CCI has treated the market for apps facilitating payment through UPI in India as a distinct market. The appellate decision in the Google matter upheld this market definition, rejecting the argument that wallets, cards, net banking and UPI were necessarily interchangeable.

C. Market for mobile-wallet services on a particular operating system

For example:

mobile wallets on iOS devices.

The Apple Pay investigation in Europe illustrates why this can be important. The European Commission's concern was specifically about mobile-wallet competition on iPhones and Apple's control over NFC functionality.

D. Market for payment-processing infrastructure

A wallet may depend upon:

• Visa;
• Mastercard;
• UPI;
• banking rails;
• tokenisation systems;
• authentication infrastructure.

Control over an essential technological input can create a separate competition problem.

4. Why Digital Wallet Markets Have Strong Network Effects

Digital wallets exhibit two-sided or multi-sided network effects.

There are normally at least two groups:

Users ↔ Wallet ↔ Merchants

More users make the wallet more attractive to merchants.

More merchants make the wallet more valuable to consumers.

This produces a positive feedback loop:

More users → more merchants → greater wallet usefulness → more users.

Once a wallet becomes sufficiently large, competitors may find it difficult to attract users.

This is particularly significant where the wallet is connected to:

• e-commerce;
• social media;
• smartphones;
• search engines;
• banking;
• loyalty programmes.

The CCI has recognised the importance of such ecosystem advantages in the UPI environment, noting that Google Pay and PhonePe were backed by substantial adjacent-business ecosystems.

5. Multi-Homing and Switching Costs

In theory, a consumer can install several wallets.

In practice, consumers often prefer one principal payment application.

This creates single-homing or limited multi-homing.

Switching costs can arise from:

• stored payment information;
• transaction history;
• rewards;
• loyalty points;
• merchant preferences;
• authentication settings;
• saved UPI IDs;
• familiarity;
• contacts;
• recurring payments.

Therefore, even where several wallets technically exist, the market may remain highly concentrated.

This is a major competition-law issue because technical interoperability does not necessarily equal effective competition.

6. Data as a Competitive Advantage

Digital wallets generate valuable data concerning:

• purchasing behaviour;
• transaction frequency;
• merchant preferences;
• location;
• spending patterns;
• credit behaviour;
• consumer preferences.

Large amounts of data can create a feedback loop:

More users → more transactions → more data → better targeting/product development → more users.

This can create a data-based barrier to entry.

Competition authorities therefore increasingly examine whether a dominant wallet uses data obtained from one service to advantage another service.

7. Interoperability

Interoperability is one of the most important competition issues.

A wallet should ideally be capable of interacting with relevant:

• payment networks;
• merchants;
• banks;
• authentication systems;
• devices.

A dominant undertaking may restrict interoperability by:

• denying API access;
• restricting NFC access;
• limiting tokenisation;
• preventing alternative payment apps from becoming default;
• imposing discriminatory technical standards.

Such conduct can potentially constitute denial of market access or discriminatory treatment.

8. Default Settings

Default settings are particularly powerful in digital-wallet markets.

Consider a smartphone where:

Wallet A = default
Wallet B = optional

Even if users are technically free to install Wallet B, most users may continue using Wallet A.

Competition law therefore increasingly recognises that choice architecture can affect competitive outcomes.

The relevant question becomes:

Is the consumer genuinely choosing the wallet, or is the platform designing the interface so that its own wallet is overwhelmingly favoured?

9. Self-Preferencing

A platform may own both:

• the infrastructure; and
• the wallet competing on that infrastructure.

This creates a classic self-preferencing problem.

For example:

Platform owns smartphone → controls NFC → owns wallet

It could theoretically provide its wallet with:

• faster authentication;
• better APIs;
• privileged access;
• default status;
• superior payment flows.

Competitors may remain present but compete under inferior technical conditions.

10. Tying and Bundling

A dominant undertaking may tie:

Operating System + Wallet

or:

App Store + Payment Service

or:

E-commerce Platform + Proprietary Wallet.

Tying becomes problematic where the dominant undertaking uses power in one market to foreclose competitors in another.

The relevant competition-law questions include:

1. Are the products separate?
2. Does the undertaking have dominance in the tying market?
3. Are customers effectively compelled to use the tied product?
4. Is competition foreclosed?
5. Is there an objective justification?

11. Exclusivity

Digital-wallet providers may attempt to create exclusive relationships with:

• merchants;
• banks;
• e-commerce platforms;
• device manufacturers;
• payment networks.

Exclusivity may produce efficiencies, but it can also foreclose rivals.

For example:

Wallet A obtains exclusive access to a major merchant network.

If competing wallets cannot obtain comparable access, network effects may strengthen Wallet A's position.

12. Predatory Pricing and Cashback

Digital-wallet companies frequently use:

• cashback;
• discounts;
• coupons;
• promotional credits;
• referral rewards.

Aggressive discounts are not automatically anti-competitive.

Competition law must distinguish:

Legitimate competition

"We offer consumers better prices."

from:

Potential exclusionary conduct

"We deliberately sustain below-cost pricing to eliminate competitors and subsequently exploit consumers."

The difficulty is especially significant in digital markets because companies may initially prioritise user acquisition over profitability.

13. Essential-Facility-Type Problems

Certain payment infrastructure may become indispensable.

For example:

• NFC functionality;
• payment-tokenisation infrastructure;
• app-store access;
• payment APIs;
• interoperability interfaces.

If a dominant undertaking controls such infrastructure, refusing reasonable access may raise an essential-facilities-type competition issue.

However, Indian competition law does not mechanically treat every important technological facility as an "essential facility."

The undertaking's:

• dominance;
• control;
• indispensability;
• ability to supply;
• justification for refusal; and
• impact on competition

must be examined.

14. Six Major Case Laws

Case 1 — Google Pay / Google Play Store — CCI

This is one of the most important Indian digital-payment competition cases.

The CCI examined Google's conduct concerning UPI payment applications on the Play Store.

The Commission identified a relevant market for:

apps facilitating payment through UPI in India.

The CCI found that Google had treated Google Pay differently from competing UPI applications such as PhonePe, Paytm and BHIM in relation to payment-flow technology.

The distinction between intent flow and collect flow was particularly important.

Intent flow provided a more seamless payment experience, whereas collect flow involved additional steps.

The CCI concluded that Google's preferential treatment could provide Google Pay with a competitive advantage and influence consumer choice.

Competition-law principle

This case demonstrates:

• self-preferencing;
• discrimination between competing apps;
• ecosystem leverage;
• technological discrimination;
• network effects;
• leveraging of platform power.

The appellate litigation subsequently upheld the CCI's relevant-market approach concerning UPI payment applications.

Case 2 — Apple Pay — European Commission

The European Commission's Apple Pay investigation is arguably the leading international example of mobile-wallet competition.

The Commission preliminarily considered that Apple held a dominant position concerning mobile wallets on iOS devices and was concerned that Apple restricted competitors' access to the NFC functionality necessary for contactless payments.

Apple Pay had privileged access to the NFC input on iPhones.

The Commission's concern was therefore:

Apple controls the device infrastructure while simultaneously competing through Apple Pay.

In July 2024, the Commission accepted commitments from Apple addressing those concerns, including access for third-party wallet providers to NFC functionality and mechanisms concerning default payment applications.

Competition-law principle

The case illustrates:

• access to technological infrastructure;
• interoperability;
• default settings;
• exclusion of rival wallets;
• leveraging operating-system dominance;
• access to NFC.

Case 3 — WhatsApp Pay / Facebook-JioMart — CCI

The CCI considered the proposed integration of WhatsApp Pay into the JioMart ecosystem.

The case demonstrated how a major digital platform can enter payments by leveraging an existing:

• messaging network;
• consumer base;
• e-commerce platform.

The Commission observed that UPI-based payment applications constituted a dynamic market and considered Google Pay, PhonePe and Paytm among the significant players. It also considered the competitive implications of WhatsApp Pay entering the ecosystem.

Competition-law principle

This case demonstrates the importance of:

• ecosystem entry;
• network effects;
• leveraging;
• adjacent-market expansion;
• conglomerate power.

Importantly, entry by a large technology company is not itself anti-competitive.

Indeed, entry may increase competition.

The legal concern arises where the entrant uses dominance in another market to foreclose existing competitors.

Case 4 — Satyen Narendra Bajaj v PayU Payments Pvt. Ltd.

This is an Indian CCI matter directly involving a payments enterprise.

The complaint concerned alleged anti-competitive conduct involving PayU Payments.

Although the CCI did not establish every allegation as an abuse of dominance, the case is useful for understanding how Indian competition law approaches payment-sector complaints under Section 4.

The case illustrates an important principle:

Merely operating a large digital-payment platform does not establish dominance.

There must be evidence concerning:

• relevant market;
• market power;
• dominance;
• exclusionary conduct;
• competitive effects.

The CCI records the matter as Case No. 23/2019.

Competition-law principle

Market share alone is insufficient.

Competition authorities must establish the relationship between:

market structure + market power + conduct + competitive harm.

Case 5 — OV Loop Inc. v Mastercard Inc.

This United States case is particularly interesting because it involved technology necessary for competing digital wallets.

OV Loop alleged that Mastercard had monopolised aspects of the mobile-payment services market by restricting access to tokenisation technology necessary for a universal digital wallet.

The plaintiff argued that access to Mastercard's technology was necessary to compete with wallets such as Apple Pay and Google Pay.

In 2025, the U.S. District Court for the District of Massachusetts dismissed the antitrust action, finding that the allegations did not adequately establish monopolistic conduct or an actual refusal to deal.

Competition-law principle

The case demonstrates an important limitation:

Not every refusal to provide technology constitutes an antitrust violation.

Competition law must establish the necessary elements of monopolisation or exclusionary conduct.

This is especially relevant to digital wallets because many wallet services depend on payment-network infrastructure.

Case 6 — PayPal / Visa and Mastercard — UK Competition Investigation

A more recent development concerns PayPal's contractual arrangements with Visa and Mastercard relating to the funding and use of the PayPal digital wallet.

In 2026, the UK Financial Conduct Authority informed PayPal of investigations under the Competition Act 1998 concerning certain provisions in PayPal's contractual arrangements with Visa and Mastercard.

This is important because it shows that competition problems may arise not only between competing wallets, but also between:

wallet providers and payment-card networks.

Competition-law principle

The case illustrates the importance of:

• contractual restrictions;
• access to payment networks;
• funding arrangements;
• interoperability;
• vertical restraints.

15. Comparative Case-Law Table

16. Abuse of Dominance Under Indian Competition Law

Section 4 of the Competition Act, 2002 becomes particularly important where a digital-wallet provider has substantial market power.

Potential forms of abuse include:

Section 4(2)(a)

Imposing:

• unfair;
• discriminatory

conditions or prices.

Section 4(2)(b)

Limiting:

• production;
• markets;
• technical development.

Section 4(2)(c)

Denial of market access.

Section 4(2)(d)

Using dominant position in one market to enter or protect another market.

Section 4(2)(e)

Leveraging dominance in one relevant market to enter into or protect another relevant market.

For digital wallets, Sections 4(2)(c), 4(2)(d) and 4(2)(e) can be particularly important.

17. Digital Wallets and Leveraging

Suppose Company A has:

70% of smartphone operating systems

and operates Wallet A.

It restricts competing Wallet B from accessing:

• NFC;
• authentication;
• default-payment functionality.

Company A may effectively transform:

Operating-system dominance → wallet advantage.

This is the classic digital-platform leveraging problem.

The Apple Pay investigation is an excellent illustration of this concern.

18. Digital Wallets and Self-Preferencing

Self-preferencing can occur in several ways.

Example

A smartphone platform displays:

"Pay with Wallet A"

as the first and easiest option.

Wallet B requires:

Settings → Apps → Payment → Select Wallet B.

Even though Wallet B technically remains available, the competitive environment is unequal.

The Google Pay case demonstrates how apparently technical differences in payment-flow design can have competitive effects.

19. Privacy and Competition

Privacy can also have a competition dimension.

A wallet that collects extensive transaction data may obtain an advantage in:

• advertising;
• credit assessment;
• personalised offers;
• merchant targeting;
• fraud detection.

Therefore:

Data advantage → competitive advantage.

However, privacy law and competition law are distinct.

A privacy violation does not automatically establish an antitrust violation.

The competition authority must establish a connection between data practices and competitive harm.

20. Interoperability as a Remedy

Where competition problems arise because a dominant wallet controls infrastructure, authorities may impose interoperability remedies.

Possible remedies include:

1. API access

Competitors receive access to relevant technical interfaces.

2. NFC access

Third-party wallets receive equivalent NFC functionality.

3. Default-choice screens

Users are asked to choose their preferred wallet.

4. Non-discrimination

The infrastructure owner must treat rival wallets objectively.

5. Data portability

Users can transfer relevant information between services.

6. Technical transparency

Changes to APIs and payment infrastructure must follow transparent procedures.

The Apple Pay commitments demonstrate how NFC access and default-payment functionality can be used as competitive remedies.

21. Digital Wallet Competition and UPI in India

India presents a particularly interesting model because UPI is inherently designed around interoperability.

A consumer can generally use different third-party applications to access UPI.

The CCI has recognised applications such as:

• Google Pay;
• PhonePe;
• Paytm;
• BHIM;
• WhatsApp Pay

as third-party applications within the UPI ecosystem.

However, interoperability does not eliminate competition concerns.

Why?

Because applications compete for:

• user acquisition;
• transaction volumes;
• merchant relationships;
• default status;
• data;
• loyalty;
• ecosystem integration.

Thus:

Interoperable infrastructure can coexist with concentrated application-level competition.

22. Market Concentration and Network Effects

A particularly important concern is a winner-takes-most dynamic.

Suppose:

Wallet A → 40 million users

Wallet B → 25 million users

Wallet C → 5 million users

Wallet A may become increasingly attractive to merchants because it has the largest user base.

Merchants then encourage consumers to use Wallet A.

This produces:

User-side network effect + merchant-side network effect.

Eventually, smaller competitors may face substantial barriers even if their technology is equally efficient.

23. Competition Between Wallets and Banks

Banks traditionally controlled payment relationships.

Digital wallets challenge this model.

The competition may therefore occur between:

• banks;
• fintech companies;
• card networks;
• wallets;
• Big Tech platforms.

A Big Tech company can enter payments with millions of existing users without having to build the consumer base from scratch.

This gives it an ecosystem advantage.

Competition authorities should therefore consider whether the company is:

competing on the merits

or

transferring market power from an adjacent market.

24. Digital Wallet Mergers and Acquisitions

Competition law also applies to acquisitions involving wallets.

A large platform might acquire:

• a wallet;
• payment gateway;
• fintech startup;
• merchant-acquiring company;
• payment-tokenisation provider.

Authorities should examine:

Horizontal effects

Does the merger eliminate an existing wallet competitor?

Vertical effects

Does it combine:

wallet + payment infrastructure?

Conglomerate effects

Does it combine:

e-commerce + wallet + advertising + data?

Innovation effects

Could the acquired startup have become an important future competitor?

This last issue is particularly significant in digital markets because current market share may underestimate future competitive significance.

25. Consumer Welfare

The ultimate competition-law assessment should consider consumer welfare.

Relevant factors include:

• lower prices;
• faster payments;
• better security;
• greater innovation;
• more choice;
• privacy;
• reliability;
• interoperability.

A wallet may have a large market share without violating competition law if it gained that position through:

• superior technology;
• better service;
• innovation;
• lower prices.

The problem arises when dominance is maintained through exclusionary conduct rather than competition on the merits.

26. Regulatory Overlap in India

Digital wallets operate under several legal regimes.

Competition Commission of India

Focus:

competition and market power.

Reserve Bank of India

Focus:

payment systems, PPIs, banking and financial stability.

NPCI

Focus:

payment infrastructure and UPI ecosystem.

Data-protection authorities/framework

Focus:

personal-data processing.

Therefore, digital-wallet regulation is inherently multi-regulatory.

A conduct that is acceptable from a payment-safety perspective may nevertheless raise competition concerns.

Conversely, a competition remedy must not compromise:

• cybersecurity;
• fraud prevention;
• financial stability.

27. Emerging Competition Issues

Future competition cases involving digital wallets are likely to involve:

1. AI payments

AI agents may increasingly initiate transactions automatically. Current developments in India are already moving toward agentic payments within the UPI ecosystem.

2. Digital identity

Control over authentication may become a competitive bottleneck.

3. Embedded finance

Wallets may become embedded into:

• social media;
• e-commerce;
• operating systems;
• automobiles;
• smart devices.

4. Tokenisation

Control over token infrastructure may become strategically important.

5. Cross-border wallets

Wallets such as Alipay+ raise questions about:

• interoperability;
• data;
• national security;
• payment access.

6. One-click payments

Convenience-enhancing technologies can also create lock-in. In India, concerns have recently been raised that saved UPI payment preferences could reinforce the position of large payment applications.

28. Key Competition-Law Tests for Digital Wallets

A competition authority should ask:

Step 1 — Define the market

Is the relevant market:

• digital wallets generally?
• UPI applications?
• mobile wallets on a particular OS?
• payment-processing infrastructure?

Step 2 — Establish market power

Examine:

• market share;
• network effects;
• switching costs;
• data;
• ecosystem advantages;
• barriers to entry.

Step 3 — Identify conduct

Look for:

• tying;
• bundling;
• self-preferencing;
• discriminatory access;
• exclusivity;
• refusal to deal;
• predatory pricing;
• data leveraging.

Step 4 — Assess effects

Ask whether the conduct:

• forecloses rivals;
• raises entry barriers;
• reduces innovation;
• reduces consumer choice;
• increases switching costs.

Step 5 — Consider efficiencies

The undertaking may demonstrate:

• security;
• privacy;
• fraud prevention;
• technical necessity;
• interoperability risks.

Step 6 — Select remedy

Possible remedies include:

• behavioural commitments;
• interoperability;
• non-discrimination;
• default-choice mechanisms;
• access obligations;
• structural remedies in exceptional circumstances.

29. Overall Legal Assessment

The central competition problem in digital wallets is not simply concentration.

It is the combination of:

market power + network effects + data + ecosystem control + technical infrastructure + switching costs.

A wallet operator controlling an important digital ecosystem can potentially use that position to disadvantage rival wallets.

The most significant case-law trends demonstrate three different approaches:

Google Pay → concern over discriminatory treatment and platform self-preferencing.

Apple Pay → concern over control of critical device functionality and interoperability.

OV Loop v Mastercard → reminder that technological dependence alone does not automatically establish an antitrust violation.

30. Conclusion

Digital-wallet competition represents a major new frontier of competition law because payment services are increasingly embedded within digital ecosystems rather than operating as standalone financial products.

The principal legal concerns are:

1. Market definition
2. Dominance
3. Network effects
4. Single-homing and switching costs
5. Data advantages
6. Self-preferencing
7. Tying and bundling
8. NFC/API access
9. Interoperability
10. Exclusivity
11. Predatory pricing
12. Denial of market access
13. Leveraging
14. Digital-wallet mergers
15. Control over payment infrastructure

The case law shows that competition authorities are moving beyond traditional market-share analysis toward a more sophisticated examination of ecosystem power and technological control. The Google Pay and Apple Pay matters are especially significant because they demonstrate that a digital-wallet provider can obtain competitive advantages not merely from the quality of its payment product but from control over the underlying digital infrastructure.

For an examination answer, the central proposition can be stated as follows:

Digital-wallet competition is governed not merely by the number of wallets available to consumers, but by whether dominant digital ecosystems provide rival wallets with genuine, non-discriminatory access to the infrastructure, data, interfaces and distribution channels necessary to compete effectively.