Jonathan Bird Web Design & Development
  1. Integrations
  2. Westpac PayWay Integration
WP Payments

Westpac PayWay Integration

Tokenised cards, recurring billing, and direct debit with production-tested handling for PayWay’s less common API flows.

PayWay is not Stripe. The documentation is thinner, the developer experience is dated, and most agencies will try to talk you out of it because they have never shipped it. Sometimes that advice is right and you should move. Often it is not: your merchant rates, your bank relationship, or your finance team's existing processes make PayWay the sensible choice, and what you actually need is someone who has already done the work. We have shipped PayWay in production, including tokenised card storage and recurring billing.

Proven in production

Westpac PayWay in production, alongside Stripe and Braintree. If your bank relationship points at PayWay, that should not mean settling for a worse build.

Capabilities

What we build with Westpac PayWay

The Westpac PayWay integration work our senior team most often takes on.

Card Payments & Tokenisation

Card payments through the PayWay REST API with tokenised storage, so you can charge a returning customer without ever holding their card number. This is the right way to keep PCI scope small, and it is not the default if nobody sets it up deliberately.

Recurring Billing

Scheduled and recurring payments against stored tokens, with proper handling of declines, retries, and expiring cards. Recurring billing that silently stops collecting is worse than no recurring billing, because nobody notices for a month.

Direct Debit & Batch Payments

Direct debit from bank accounts and batch payment files, which are still how a lot of Australian B2B and membership billing actually happens. Unglamorous, well suited to PayWay, and genuinely useful when your customers are not paying by card.

Reliability & Reconciliation

Idempotent payment requests so a network timeout does not double-charge a customer, plus reconciliation against your settlement reports. Payment code is the one place where "probably fine" is not good enough.

Migration To or From PayWay

Moving onto PayWay from another gateway, or off it onto Stripe. Either direction, the tricky part is stored cards: tokens are gateway-specific and generally cannot simply be exported, so the migration has to be planned around re-collecting or re-tokenising without annoying your customers.

Someone Who Has Actually Shipped It

The honest advantage here is unglamorous: we have already worked out PayWay's quirks on someone else's clock. You are not paying us to learn a poorly documented API on your project.

How it works

A Westpac PayWay integration built to last

The same approach behind every integration we deliver, from the first conversation to the years of maintenance that follow.

01

Scope & map

We define the data, events, responsibilities, source of truth, and failure cases across Westpac PayWay and the systems around it.

02

Build for failure

We design around real failure modes with appropriate retries, idempotent writes, validation, and reconciliation so a temporary outage does not become silent data loss.

03

Test & reconcile

We test representative data in a safe environment, verify each data path, and reconcile the expected outcomes before go-live.

04

Monitor & maintain

Monitoring and alerting start at launch. Our senior team keeps the project context and remains responsible for changes, incidents, and long-term operation.

Straight advice

The simplest reliable integration usually wins.

The right design depends on volume, timing, ownership and what must happen when either system is unavailable.

Not every sync needs to be real-time

Scheduled or event-driven updates can be safer, cheaper and easier to recover.

Choose a source of truth

Each field and business rule needs one accountable owner across the connected systems.

Design the failure path

Retries, logs, alerts and reconciliation are part of the integration—not optional support work.

The Difference

PayWay benefits from prior production experience.

PayWay’s thinner documentation and less common implementation path make discovery, error handling, and testing especially important. Our team has already shipped it in production.

A common shortcut

The implementation relies on assumptions around undocumented edges.

  • Pushes you onto Stripe by default, because it is the gateway they know, not because it is the right call for your bank relationship.

  • Bolts tokenisation on as an afterthought, or stores card details directly, quietly dragging your whole system into PCI scope.

  • Recurring billing that silently stops collecting when cards expire or declines pile up, and nobody notices for a month.

Our senior-team model

Has already shipped it in production.

  • A straight answer on whether PayWay actually suits you, from someone who has shipped both and gains nothing from steering you either way.

  • Tokenised storage from the start, so you charge returning customers without ever holding a card number and your PCI scope stays small.

  • Declines, retries, and expiring cards handled deliberately, with reconciliation against your settlement reports so a stalled collection surfaces the same day.

“ Digital Bird has had a huge influence on our business providing many solutions besides just a fantastic reliable website. Jonathan is great to work with and has a solution to every challenge. Jonathan also has the ability to “dumb it down” and provide timely advice and assistance if something goes astray. With Jonathan we have in excess of 99% uptime on all three websites. ”

Jeff Ross · Director, Impact Office Supplies
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FAQ

Common Westpac PayWay Integration Questions

Common questions our team is asked about integrating Westpac PayWay.
If you have a free choice, Stripe is usually the better developer experience and supports more payment methods. But the choice is often not free. If your merchant rates through Westpac are materially better, if your finance team already reconciles against Westpac settlement reports, or if your bank relationship makes PayWay the path of least resistance, then PayWay is a perfectly reasonable decision and worth building properly. We have shipped both and will give you a straight answer rather than the one that suits us.
Yes, through tokenisation. The card is stored with Westpac and your system holds only a token, which you use for subsequent charges. This is the correct approach: you get one-click repeat purchases and recurring billing without ever holding card numbers yourself, which keeps your PCI DSS scope dramatically smaller.
Yes to both. Recurring card payments run against stored tokens, and PayWay also handles direct debit from bank accounts, which remains common for Australian B2B, membership, and subscription billing where customers do not want to pay by card. The engineering care goes into handling declines, expiring cards, and retries so that collections do not quietly stop.
Yes, but stored cards are the catch. Payment tokens are specific to the gateway that issued them, so they generally cannot simply be exported from one to the other. That means a migration has to be planned around either re-collecting card details from customers or arranging a card migration through the providers. It is very doable, but it is the part that needs planning rather than the part you discover in week three.

Discuss your Westpac PayWay integration

Led by more than 15 years of commercial experience, our senior team helps Australian organisations ship websites that are fast, secure, accessible and built for the long term.

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