The Hidden Costs of BaaS: Licensing, Transaction Fees, and Implementation

The Quote That Looked Too Good to Be True

When Ava, a Brisbane-based PropTech founder, first saw the pitch deck from a Banking-as-a-Service provider, she was thrilled. “Launch embedded rent payments in 90 days,” the headline read. “Platform fee from just $0.10 per user.” She signed the letter of intent within a week.

Six months later, Ava’s finance team was drowning in a spreadsheet they privately called “The Iceberg.” The $0.10 per-user fee was real — but it sat on top of a monthly platform subscription, per-transaction NPP charges, KYC verification pass-throughs, card production costs, and an interchange revenue split she hadn’t fully understood. Her all-in cost per active customer was nearly four times what the original pitch implied.

Ava’s story isn’t unusual. In the 2026 Australian BaaS market, headline pricing is just the tip. For CTOs, Product Leads, and Founders evaluating embedded finance, the difference between a profitable integration and a cash drain often comes down to what’s buried in the commercial schedule — not what’s on the landing page.

This guide pulls the pricing apart, layer by layer. You’ll learn where the real costs sit, how interchange economics work, what “pass-through” actually means in practice, and — most importantly — how to build a financial model that captures the full picture before you sign.

How BaaS Providers Actually Make Their Money

Before you can spot hidden costs, you need to understand the three revenue pillars that virtually every BaaS platform in Australia uses. These aren’t alternative models — most providers layer all three together, and the blend determines your total cost of ownership.

Pillar 1: Monthly Platform Subscriptions — The “Seat at the Table” Fee

Think of this as rent. Whether or not a single customer uses your embedded finance product, you’ll pay a fixed monthly fee for access to the platform’s regulated infrastructure. In the Australian market, access to a deposit account module might cost around USD 10,000 per month, with an additional USD 5,000 if you add a card program on top.

This fee typically covers the provider’s regulatory licensing overhead, core banking infrastructure, sandbox environments, and basic support. It does not usually cover transaction processing, compliance checks, or card production — those come separately.

For early-stage companies, this fixed cost can be a significant burden before product-market fit is proven. For scale-ups processing thousands of transactions daily, it becomes a rounding error. The key question is: at what user volume does this subscription become negligible on a per-customer basis?

Pillar 2: Per-User and Per-Account Fees — The “Growth Tax”

This is the variable layer. As your embedded finance product gains traction, you’ll pay a fee for each active end-user or account on the platform — commonly around 10 cents per customer per month in the Australian market.

It sounds trivial at first glance. But consider a marketplace with 200,000 active wallets: that’s $20,000 per month in per-user fees alone, before a single transaction is processed. The important nuance here is how “active” is defined. Some providers charge for any account that exists; others only charge when the account holds a balance or processes a transaction within the billing period. That distinction can double or halve your cost at scale.

Pillar 3: Transaction-Based Fees — The “Movement of Money” Charge

Every time money moves — an NPP payout, a BECS transfer, or an international wire — a fee is triggered. Local transfers via the New Payments Platform might cost just a few cents per transaction, while international wires can run as high as $30 each.

Interchange Revenue Splits: Where the Real Negotiation Happens

If your BaaS integration includes a branded card program — debit or credit — you need to understand interchange economics. This is where sophisticated operators make or lose significant margin.

Interchange is the fee charged to merchants every time a customer uses your branded card, typically around 2.5% of the transaction value in Australia. That fee doesn’t go to one party — it’s split across a chain.

In a typical arrangement, the fintech partner (that’s you) might retain around 1.5%, while the remaining 1.0% is divided among the BaaS platform, the sponsor bank (the ADI licence holder underwriting the product), and the card network (Visa or Mastercard). The exact split is negotiable and depends on your projected volume, the sponsor bank’s risk appetite, and your bargaining position.

Here’s what catches many founders off guard: interchange revenue is often presented as a revenue stream in the provider’s pitch — “you’ll earn 1.5% on every card swipe.” What they don’t emphasise is that your net interchange revenue must cover your platform subscription, per-user fees, and a portion of your compliance costs just to break even. For a card program to be genuinely accretive, you typically need a minimum monthly card spend per user that many early-stage products simply don’t achieve.

A Quick Interchange Reality Check

Imagine your embedded card program has 10,000 active users, each spending an average of $500 per month. At a 1.5% interchange share, that generates $75,000 per month. Sounds healthy — until you subtract:

• Platform subscription: $15,000/month (deposit accounts + card program)
• Per-user fees: $1,000/month (10,000 users × $0.10)
• KYC pass-throughs for new onboarding: variable
• Fraud monitoring and dispute resolution: variable
• Card production and shipping: variable for physical cards

Your actual net margin is likely closer to $40,000–$50,000 — and that’s before your own operational costs. If average monthly spend drops to $200 per user, the economics can turn negative quickly.

The “Pass-Through” Trap: Costs That Don’t Appear on the Rate Card

Pass-through costs are expenses that the BaaS platform incurs from its own vendors and passes directly to you — usually at cost, sometimes with a margin. These are the items that most frequently surprise businesses during their first quarterly review.

KYC and KYB Verification

Every end-user who opens an account or wallet must be verified against identity databases, sanctions lists, and PEP (Politically Exposed Persons) registers. In Australia, this typically involves integration with the Document Verification Service (DVS) and various credit bureau checks. Individual KYC checks can range from $1 to $5 per verification, while KYB (Know Your Business) checks for commercial accounts are significantly more expensive. If your onboarding funnel has a high drop-off rate, you’re paying for verifications that generate zero revenue.

Card Production and Shipping

Virtual cards are essentially free to issue. Physical cards are not. Production, personalisation, packaging, and postage for a branded debit card in Australia typically costs between $5 and $15 per card. If your product relies on the tangibility of a physical card — as many consumer-facing propositions do — this is a material line item at scale.

ATM Access Fees

If your end-users withdraw cash, the ATM network charges a fee that’s passed through to you. In Australia, where the major ATM networks have largely eliminated direct consumer fees, the cost is absorbed behind the scenes — but it still lands on your BaaS invoice.

Fraud Monitoring and Dispute Resolution

Regulatory Reporting and Audit Support

Real-Time Payments: The NPP Advantage (and Its Cost Profile)

Australia’s payment infrastructure has undergone a definitive shift toward real-time settlement through the New Payments Platform and the ISO 20022 messaging standard. By 2026, instant settlements averaging under 5 seconds are the norm — and the retirement of the legacy Bulk Electronic Clearing System (BECS), scheduled for completion by 2030, has accelerated migration to PayTo for account-to-account payments.

For BaaS integrators, this shift has both cost benefits and cost implications:

The upside: PayTo’s account-to-account rails bypass traditional card networks entirely, which means no interchange fees, no scheme fees, and conversion rates as high as 99.03%. For high-volume, recurring payment use cases — utilities billing, subscription SaaS, insurance premiums — the per-transaction cost of an NPP payment is dramatically lower than a card transaction.

The catch: NPP access through a BaaS provider still carries a per-transaction fee, and the economics are only favourable at volume. Providers like Zepto, which have processed over AUD $612 million in PayTo transactions, have optimised their pricing for high-throughput scenarios. But for a low-volume product just getting started, the minimum monthly commitments or per-transaction floors can erode the theoretical savings.

Putting It All Together: A Cost Comparison Across Leading Providers

To make these abstract pricing layers concrete, here’s a comparative snapshot of what Australian businesses encounter across major providers in 2026. Note that these are indicative figures — actual pricing is negotiated based on volume commitments and use case complexity.

These headline figures are useful for initial comparison, but they represent only the visible layer. The true cost divergence emerges in interchange splits, pass-through charges, and minimum volume commitments — which is why a detailed commercial review is essential before signing any agreement.

The Licensing Question: Build, Borrow, or Bypass?

One of the most significant “hidden” costs of BaaS isn’t a line item on anyone’s invoice — it’s the opportunity cost of the licensing decision itself.

The BaaS model exists precisely to bypass this. By partnering with a licensed sponsor bank — such as Westpac through its 10x Banking platform — non-bank brands can offer regulated financial products under the sponsor’s licence. The trade-off is clear: you avoid the upfront capital and time cost of licensing, but you accept ongoing commercial dependency and the margin compression that comes with sharing revenue across the value chain.

The Middle Path: AFSL Holders with BaaS Infrastructure

There’s a pragmatic middle ground that’s increasingly popular in the 2026 market. Companies that hold their own AFSL — which covers financial advice, dealing, and certain payment activities — can partner with a BaaS provider for the core banking infrastructure (ledger, settlement, card issuance) while retaining greater control over the customer relationship and compliance posture. This approach reduces dependency on the sponsor bank’s risk appetite while still avoiding the full ADI licensing burden.

Building a Realistic BaaS Cost Model: The Four Layers

If Ava — our Brisbane PropTech founder — had built this model before signing her letter of intent, she would have avoided six months of unpleasant surprises. Here’s the framework that every decision-maker should use.

Layer 1: Fixed Infrastructure Costs

Platform subscription, sandbox access, dedicated support tiers, and any minimum monthly commitments. These are payable regardless of user volume and represent your “floor” cost.

Layer 2: Variable Usage Costs

Per-user fees, per-transaction fees (broken down by payment rail — NPP, BECS, international wire, card), and any volume-based tier thresholds that trigger rate changes.

Layer 3: Pass-Through Costs

KYC/KYB verification, card production, ATM fees, fraud monitoring, dispute resolution, and regulatory reporting support. Request an itemised schedule of all pass-throughs during commercial negotiation — if the provider can’t produce one, that’s a red flag.

Layer 4: Revenue Offsets

Interchange revenue share, interest income on held balances (if applicable), and any promotional credits (such as Airwallex’s $100,000 fee waiver for qualifying startups). These offsets reduce your net cost but should never be modelled as guaranteed income — they depend on user behaviour and market conditions.

Model these four layers at three volume scenarios — conservative, expected, and optimistic — across a 24-month horizon. The provider that looks cheapest at 1,000 users may be the most expensive at 100,000.

Your Decision Framework: Five Questions to Ask Before You Sign

Whether you’re Liam, a CTO at a Sydney fintech evaluating your first sponsor bank relationship, or Isabella, a Product Lead at a Melbourne marketplace exploring embedded wallets, these five questions will expose the true cost of any BaaS partnership.

1. “What is my all-in cost per active user at 10,000, 50,000, and 200,000 users?”

Don’t accept a single per-user figure. Demand a blended cost calculation that includes the subscription amortised across your user base, per-user fees, average transaction costs, and estimated pass-throughs. If the provider can’t model this for you in the sales process, their pricing transparency isn’t where it needs to be.

2. “How is ‘active user’ defined for billing purposes?”

An account that exists but holds no balance and processes no transactions should not cost the same as a fully engaged user. Clarify whether billing is based on account creation, account activation, monthly activity, or balance thresholds.

3. “What are the exact pass-through costs, and which vendor provides each service?”

A reputable BaaS provider will disclose their KYC vendor, card manufacturer, fraud monitoring partner, and the associated unit costs. If pass-throughs are described only as “at cost” without itemisation, negotiate for a detailed schedule with caps or at least indicative ranges.

4. “What happens if I need to migrate away?”

5. “What is the interchange split, and at what volume thresholds does it improve?”

Interchange splits are rarely fixed. Most agreements include tiered structures where your share increases as monthly card spend grows. Understand the tiers, negotiate floor rates, and ensure the revenue-sharing model is documented in the commercial schedule — not just discussed verbally.

Why Cost Transparency Matters More in 2026

The Australian embedded finance market was valued at approximately USD 11.51 billion in 2025 and is projected to reach USD 14.86 billion by 2030. That growth is attracting more providers, more competitive pricing, and — importantly — more sophisticated buyers.

Regulatory developments are also pushing toward greater transparency. The expansion of the Consumer Data Right to non-bank lenders from mid-2026 means that the data underpinning financial product decisions is becoming more accessible. AUSTRAC’s AML/CTF reforms, commencing March 2026, are adding compliance costs for all participants — but also creating a clearer playing field where providers can’t hide regulatory risk in opaque pricing.

From Cost Clarity to Confident Action

Understanding the full cost structure of a BaaS partnership is the first step. The next is finding a partner whose commercial model aligns with your business — not one that profits from your confusion.

Corporate Alliance provides Australian businesses with transparent, fully integrated payment infrastructure — including Instant NPP Payments, House Accounts, Sub Accounts, PayID with customised domains, and operation under an AFSL licence. Every cost layer discussed in this guide — from platform fees to pass-throughs — is addressed with clear, itemised pricing from day one.