Slug: top-5-baas-platforms-in-australia-features-fees-and-flexibility-compared

Meta Description: Compare Westpac, Airwallex, Zepto, CBA, and more. Analyze NPP integration, pricing models, and API quality to choose your ideal BaaS partner.

Top 5 BaaS Platforms in Australia: Features, Fees, and Flexibility Compared

When the Bank Says “No” but Your Customers Say “Now”

Twelve months ago, Liam ran a thriving SaaS platform in Melbourne that helped small hospitality venues manage their bookings and supplier payments. His customers loved the product — but they kept asking for the same thing: “Can we just pay our suppliers directly from your app?”

Liam’s first instinct was to approach his bank. After three months of meetings, compliance questionnaires, and a quote for custom integration that ran into six figures, he was no closer to launching. His competitors, meanwhile, had already embedded real-time payment features and were winning deals he used to close in his sleep.

Liam’s story isn’t unusual. Across Australia in 2026, thousands of businesses — from e-commerce marketplaces to PropTech startups — are discovering that the traditional path to offering financial services is too slow, too expensive, and too rigid. The solution? Banking-as-a-Service (BaaS): the ability to plug regulated banking capabilities directly into your existing platform using APIs, without needing to become a bank yourself.

But here’s the challenge Liam faced next — and the one you’re likely facing right now: which BaaS platform is actually right for your business?

Why Choosing the Right BaaS Partner Is a Strategic Decision, Not a Procurement Task

Selecting a BaaS provider isn’t like choosing accounting software. You’re essentially choosing the regulated financial backbone that will sit underneath your product. Get it wrong, and you face integration delays, unexpected compliance costs, or — worst case — a partner that can’t scale with you as your customer base grows.

In Australia’s 2026 landscape, three forces make this decision particularly high-stakes:

The Five Platforms Shaping Australian BaaS in 2026

Let’s examine each provider through the lens that matters most: what they do best, what they cost, and who they’re built for.

Westpac (10x Banking): Institutional-Grade Infrastructure for Scale

Think of Westpac’s BaaS platform as the aircraft carrier of the Australian market. Built in partnership with 10x Banking and hosted on AWS, it’s designed for organisations that need enterprise-level reliability, multi-tenant architecture, and the regulatory cover of one of Australia’s “Big Four” banks.

Core capability: Westpac’s platform runs on 10x’s SuperCore — a cloud-native core banking engine that centralises transaction and customer data into a single unified model. This means real-time regulatory reporting, advanced analytics, and the ability to onboard multiple distinct brands (each with their own customer base) onto a shared, secure infrastructure.

Speed to market: Partners can launch products like personalised savings accounts in minutes using no-code configuration tools. The platform itself was built in an 18-month timeframe and supports partners including SocietyOne, Flare, and Afterpay.

Pricing model: Westpac’s BaaS offering operates on an enterprise engagement model. Pricing is bespoke, typically involving platform access fees and per-account charges negotiated based on projected volume. The Westpac Business One account itself carries no monthly fee for direct customers.

Best for: Established fintechs, neobanks, and large platforms that need the credibility and regulatory shield of an ADI sponsor bank, and have the transaction volume to justify an enterprise-tier partnership.

Key consideration: This is not a self-serve, sign-up-today platform. Organisations need dedicated technical resources for integration and should expect a relationship-driven onboarding process.

Airwallex: The Global Payments Engine for Cross-Border Businesses

If Westpac is the aircraft carrier, Airwallex is the high-speed catamaran — built for agility across international waters. Originally founded in Melbourne, Airwallex now processes over USD 223 billion in annualised transaction volume and provides an all-in-one platform for managing international payments, multi-currency accounts, and corporate cards.

Core capability: Airwallex’s standout feature is its ability to create local currency accounts in over 60 markets programmatically. Their “like-for-like” settlement means businesses can receive, hold, and pay out in the same currency — eliminating the forced FX conversions that silently erode margins for importers and marketplace operators.

Speed to market: Airwallex offers API-first onboarding with comprehensive developer documentation and sandbox environments. For venture-backed startups, their Startup Program provides up to $100,000 in fee waivers, alongside ecosystem perks from partners including Google Cloud.

Pricing model: Monthly account fees range from $0 to $29 depending on the plan. FX rates are set at the interbank rate plus a transparent fee. There’s no charge for setting up local currency accounts. This transparent, low-entry-cost model is designed for high-growth companies scaling internationally.

Key consideration: Airwallex excels at global payments and multi-currency management, but if your primary need is domestic A2A payments via NPP/PayTo, a specialist like Zepto may be more focused.

Zepto: The Real-Time A2A Payments Specialist

Zepto doesn’t try to be everything to everyone. Instead, it has carved out a powerful niche as Australia’s leading infrastructure provider for account-to-account (A2A) payments — connecting businesses directly to both the legacy BECS framework and the instant NPP rails through a single API.

Core capability: Zepto has been instrumental in driving PayTo adoption in Australia, processing over 1 million PayTo transactions totalling AUD $612.20 million by mid-2025. Its infrastructure delivers 99.03% conversion rates and significantly lower processing costs compared to traditional card networks. Zepto also sits on the Australia Payments Plus (AP+) Management Committee, giving it direct influence over the country’s core payment scheme strategy.

Speed to market: Zepto’s API is focused and well-documented, making integration straightforward for developers who need to embed payment initiation and reconciliation into existing platforms. The scope is narrower than a full-stack BaaS provider, which means faster integration for payment-specific use cases.

Pricing model: Zepto operates on a transaction-based fee model. Costs are tied to payment volume and type (BECS vs. NPP). For high-volume sectors like utilities, insurance, and wagering — where real-time settlement directly impacts cash flow management — this model is highly competitive against card-based alternatives.

Best for: Businesses in high-volume, payment-intensive sectors (utilities, insurance, wagering, B2B invoicing) where real-time settlement, automated reconciliation, and low per-transaction costs are more valuable than a broad financial product suite.

Commonwealth Bank (CBA): Data-Driven Open Banking and Security Leadership

CBA approaches BaaS differently from the other providers on this list. Rather than offering a white-label banking-in-a-box platform, CBA’s 2026 strategy leans heavily into the Consumer Data Right (CDR) and developer-accessible APIs — positioning itself as the infrastructure layer for accredited third parties that want to build data-enriched financial experiences.

Core capability: The CommBank Developer portal provides Public APIs for product details and Consumer APIs for accredited data recipients to access transaction history, account balances, and other customer data (with consent). CBA has also invested heavily in AI-powered security: using real-time generative AI from H2O.ai, the bank has reduced customer scam losses by 76% from its 2022 peak — protecting its 16 million customers and, by extension, any partner that leverages its infrastructure.

Speed to market: CDR-based integrations require accreditation as a data recipient, which introduces a compliance timeline. However, once accredited, developers can access a rich dataset that enables use cases like automated creditworthiness assessments and cross-institutional financial dashboards.

Pricing model: CBA’s direct business accounts (like Smart Access) carry fees from $0 to $10 per month. API access for CDR-accredited parties operates under the regulatory framework rather than a commercial fee model. FX rates follow a daily margin-plus-fee structure.

Best for: Accredited data recipients, financial comparison platforms, personal finance management apps, and organisations building products that depend on deep consumer financial data rather than white-label account or card issuance.

Key consideration: CBA’s offering is data-first, not product-first. If you need to issue branded cards or create deposit accounts under your own brand, CBA’s current developer offering isn’t the right fit. But if your competitive advantage depends on understanding your customers’ full financial picture, CBA’s CDR-integrated infrastructure is unmatched among the Big Four.

Zeller: The Integrated Terminal-and-Account Solution for Australian SMBs

Zeller rounds out this comparison as a provider built specifically for Australian small and medium businesses that want a unified financial operating system — combining payment acceptance, a transaction account, and business tools in one place, with no monthly fees.

Core capability: Zeller offers an integrated EFTPOS terminal paired with a business transaction account. Funds from card payments settle directly into the Zeller account, eliminating the settlement delays common with traditional merchant acquiring. The platform is AUD-only, designed purely for domestic commerce.

Speed to market: Zeller’s proposition is turnkey — businesses can order a terminal and open an account online, with minimal onboarding friction. This is the fastest path to a unified payments-and-banking setup for a small business, though it’s not an API-first BaaS platform in the traditional sense.

Pricing model: No monthly fees. Revenue comes from payment processing fees on terminal transactions. There are no FX capabilities, as the platform is designed exclusively for domestic AUD transactions.

Best for: Australian SMBs — particularly retail, hospitality, and services businesses — that need a simple, integrated payment and banking experience without cross-border complexity or API-driven embedded finance.

Key consideration: Zeller is not a BaaS platform in the API-infrastructure sense. You won’t be embedding Zeller’s banking capabilities into your own software product. It’s included here because business owners comparing financial service options in Australia frequently encounter Zeller alongside the other providers, and understanding where it fits (and where it doesn’t) prevents costly misalignment.

Side-by-Side: Features, Fees, and Flexibility at a Glance

Criteria	Westpac (10x)	Airwallex	Zepto	CBA	Zeller
Primary Strength	Institutional-scale BaaS with ADI backing	Global multi-currency payments & wallets	Real-time A2A payments (NPP/PayTo)	CDR data access & AI-driven security	Integrated terminal + account for SMBs
Regulatory Model	ADI (Sponsor Bank)	EMI / AFSL	AFSL / NPPA	ADI (Full Stack)	AFSL
NPP/PayTo Integration	Yes (via SuperCore)	Limited (focus on global rails)	Yes (core speciality)	Yes (internal infrastructure)	No (card-based settlement)
Multi-Currency Support	Limited	60+ markets	No (AUD-focused)	Yes (via traditional FX)	No (AUD only)
Monthly Fee	Bespoke (enterprise)	$0–$29	Transaction-based	$0–$10	$0
API Quality & DX	Enterprise-grade; partner-managed	Excellent; self-serve sandbox	Focused; well-documented	CDR-standard; public & consumer APIs	Minimal (not API-first)
Card Issuance	Yes (via partners)	Yes (virtual & physical)	No	Yes (traditional)	Yes (Zeller-branded)
Ideal Business Profile	Neobanks, large fintechs	Global SaaS, marketplaces	High-volume domestic payments	Data-driven financial apps	Local retail & hospitality SMBs

Your Decision Framework: Five Questions to Find Your Ideal BaaS Partner

Comparison tables are useful, but they don’t make decisions. The right BaaS partner depends entirely on your specific business model, growth trajectory, and technical requirements. Use the following framework to narrow your options.

Question 1: Are You Embedding Financial Services Into Your Own Product, or Running a Business That Needs Better Banking?

This is the fundamental fork in the road. If you’re a platform builder — like Liam from our opening story — who wants to offer payment, account, or card features within your software for your end users, you need a true BaaS provider with robust APIs (Westpac/10x, Airwallex, or Zepto). If you’re a business owner looking for a better day-to-day financial operating system, Zeller or a direct relationship with CBA may be more appropriate.

Example: Olivia runs a property management platform in Brisbane. She wants her landlord clients to receive rental payments instantly, reconciled automatically within her app. She needs Zepto’s A2A infrastructure or Westpac’s BaaS APIs — not Zeller’s integrated terminal.

Question 2: Is Your Payment Volume Primarily Domestic or International?

This single question eliminates half the field for most businesses. If you’re moving money across borders — paying overseas suppliers, collecting from international customers, or managing multi-currency treasury — Airwallex is purpose-built for this. If your flows are predominantly domestic AUD, Zepto’s NPP/PayTo integration will deliver faster settlement at lower cost than routing through card networks.

Example: Ethan operates a fashion marketplace connecting Australian designers with buyers in Southeast Asia. He collects in SGD, MYR, and THB, and pays designers in AUD. Airwallex’s like-for-like settlement eliminates the FX conversion drag that was costing him thousands each month.

Question 3: How Critical Is Regulatory Cover to Your Business Model?

If your product involves holding customer deposits, issuing cards, or facilitating lending, you need a partner that provides ADI-level regulatory cover. Westpac’s BaaS platform offers this — your end customers’ funds are held under Westpac’s banking licence, and the compliance infrastructure (KYC, AML, APRA reporting) is managed at the platform level. This is the “regulatory liability shield” that allows non-bank brands to offer bank-grade products without obtaining their own ADI licence.

Question 4: Does Your Competitive Advantage Depend on Consumer Financial Data?

If your value proposition is helping consumers or businesses make better financial decisions — comparing products, consolidating accounts, or automating switching — then CBA’s CDR-integrated APIs are your starting point. The expanding Consumer Data Right means accredited recipients can now access transaction data across institutions, enabling products that weren’t possible even two years ago.

Example: Noah is building a personal finance app that automatically identifies when a customer is overpaying on their home loan and suggests better alternatives. He needs CDR data from multiple banks, not a white-label card programme. CBA’s developer portal — combined with CDR accreditation — gives him the data pipes he needs.

Question 5: What’s Your Integration Timeline and Technical Capacity?

Be honest about your team’s resources. Westpac’s enterprise-tier platform delivers maximum capability, but requires dedicated integration effort and a relationship-driven onboarding process. Airwallex and Zepto offer self-serve API access with sandbox environments that let developers start building immediately. Zeller requires almost no technical integration at all.

Example: Charlotte is a solo founder with a two-person dev team. She needs to add supplier payments to her procurement platform within 60 days. She doesn’t have the bandwidth for an enterprise BaaS negotiation. Zepto’s focused API and clear documentation get her live faster than any enterprise engagement could.

Beyond the Sticker Price: Costs That Don’t Appear on the Pricing Page

Every BaaS platform quotes monthly fees and transaction rates. But the true cost of a partnership includes several line items that only become visible after you’ve signed.

Pass-through costs are charges your BaaS provider incurs from their own vendors and passes directly to you. These commonly include KYC and KYB verification fees (charged per onboarding check), physical card production and shipping costs, ATM withdrawal fees for your end users, and fraud monitoring and dispute resolution services.

Interchange revenue splits are relevant if your product involves card-based payments. The typical interchange fee of approximately 2.5% per transaction is divided between the fintech partner (often around 1.5%), the BaaS platform, the sponsor bank, and the card networks. Understanding how your provider structures this split — and whether it improves at higher volumes — is critical to your unit economics.

Integration and maintenance costs include the developer time required for initial integration, ongoing API version management, and compliance updates as regulations evolve. Platforms with better developer documentation and more stable APIs reduce these costs significantly over time.

From Comparison to Action: Implementing the Right Solution for Your Business

You’ve now seen the landscape. You understand what each platform offers, where they excel, and where the hidden costs sit. The next step is mapping these capabilities to your specific business requirements — and that’s where expert guidance makes the difference between a smooth launch and months of costly iteration.

Corporate Alliance specialises in helping Australian businesses navigate exactly this decision. As an AFSL licence holder with deep expertise in payment infrastructure, Corporate Alliance offers Instant NPP Payments, House Accounts, Sub Accounts, and PayID with customised domains — the building blocks that turn your BaaS strategy from a plan into a live, revenue-generating capability.

Whether you’re a platform builder like Liam embedding payments into your SaaS product, a marketplace like Ethan’s managing multi-currency flows, or an SMB looking for a smarter financial operating system, Corporate Alliance can help you evaluate your options and implement the right solution.

The Bottom Line: Match the Platform to Your Business Model, Not Your Budget

The most expensive BaaS mistake isn’t choosing a platform with high fees — it’s choosing one that doesn’t align with your business architecture. A marketplace that picks a domestic-only provider will hit a wall the moment it expands internationally. A neobank that chooses a payments specialist without ADI backing will find itself unable to offer the deposit products its customers expect.

Australia’s BaaS ecosystem in 2026 is mature enough to offer genuine choice, but that choice demands clarity about what you’re building, who you’re building it for, and how fast you need to move. Use the decision framework above, understand the true cost structure, and — when you’re ready — engage a partner who can help you execute with confidence.