If you're an Australian business selling digital products via Stripe, GST is non-negotiable. When do you register? What rate applies? How do you invoice for the ATO? If you've been living under a rock, here's the short version: most businesses over AUD 75k turnover must register for GST (10%), and Stripe Tax auto-calculates it for you. Velocity X builds this in from day one — no guesswork, no manual spreadsheets, no late-night ATO audit panic. Let me walk you through the framework and show how Stripe handles it end-to-end.
GST Basics: When You Need to Register and Why
The Australian Taxation Office (ATO) requires all businesses with annual turnover above AUD 75,000 to register for GST (Goods and Services Tax, 10%). If you're below that threshold, registration is optional — but if you register voluntarily, you can claim input tax credits on business expenses, which often makes it worth it. Once registered, you're assigned an 11-digit ABN (Australian Business Number) and must lodge a Business Activity Statement (BAS) quarterly, declaring sales, purchases, and GST owed.
For digital product sales (SaaS, courses, designs, consulting), GST applies when the customer is in Australia or, for services, when you're physically in Australia and the service is supplied to a non-GST-registered entity overseas. The threshold is the same: if you exceed AUD 75k in a 12-month period, you must register. Stripe can help you track this, but the compliance responsibility stays with you — which is why automating the calculation and invoice generation matters.
ABN Lookup and Stripe Tax Setup
Start by registering with the ATO if you haven't already. Once approved, you'll get your ABN in writing. Head to Stripe Dashboard → Settings → Tax (if you're in AU, it's available by default). Enable Stripe Tax, select "Australia" as your tax jurisdiction, and add your ABN. Stripe Tax automatically determines whether a customer is GST-registered, what their tax ID is, and what rate applies. A local customer with an ABN gets no GST; a consumer gets 10% added. International customers generally pay no GST (unless specific rules apply). Zero manual work — Stripe does the heavy lifting.
Once Stripe Tax is active, every Payment Link and invoice auto-calculates tax based on the customer's billing address and tax status. If they provide an ABN during checkout, Stripe can verify it (optional, adds complexity) and adjust the rate accordingly. For most cases, the address alone is enough — Stripe's rules engine handles the rest.
Invoice PDF Generation and ATO Compliance
When a customer completes a Stripe payment, Stripe automatically generates a tax invoice PDF. This invoice includes your ABN, GST registration declaration, itemised tax line items, and all payment details the ATO expects. Customers receive it via email; you can also access it via the Stripe Dashboard or API. That PDF is ATO-compliant — no further doctoring needed. If your accountant asks for proof of sales, point them to Stripe's invoice list; they're all there, fully documented.
For Velocity X, this is automatic. Every Stripe Payment Link charge triggers an invoice with tax baked in. The customer downloads it; you grab it from Stripe's dashboard at tax time. Your accountant reconciles your BAS using Stripe's monthly report, and you're compliant with zero manual invoice doctoring. This is what a senior operator does — let Stripe handle the tax calculation and PDF generation, and focus on selling.
Handling EU/UK VAT for International Sales
Australia doesn't have an EU tax treaty for digital services, so if an EU customer buys from you, they might be charged VAT (17–27% depending on their country) instead of your local tax. Stripe Tax knows this. When an EU customer with a valid VAT ID checks out, Stripe applies their home country's VAT rate, not GST. For UK customers, post-Brexit rules apply: they're treated like any other international customer, and VAT is applied based on their location. The invoice reflects their local tax, not yours. You report the sale as an export (zero-rated) on your BAS. Stripe's tax engine handles all of that logic — you just enable Stripe Tax and let it run.
One caveat: if you're selling B2B (customer-to-business) to an EU or UK entity with a valid tax number, that transaction is often exempt from VAT entirely. Stripe Tax respects that — it checks the tax ID and applies the right rate automatically. For B2C (business-to-consumer), the customer's location is what matters. Either way, Stripe's engine has the rules built in; you don't have to code them.
Recording Sales and Quarterly BAS Lodgement
Every month or quarter (before your BAS is due), export your Stripe charges from the dashboard or use the API to pull a report. Most accounting software (Xero, QuickBooks, MYOB) has a Stripe integration that auto-syncs; if yours doesn't, a simple script queries Stripe's API and pushes the data to a CSV or your accounting system. Stripe already knows the GST line item; your software should too. When BAS time comes, your accountant logs into your accounting software, verifies the sales and GST figures match Stripe, and lodges. The invoices (and their tax calculations) are the audit trail. No more manual spreadsheets.
// Query Stripe charges with tax data (for BAS reconciliation)
{"\n"}const charges = await stripe.charges.list({"{"}
{"\n"} limit: 100,
{"\n"} created: {"{"}
{"\n"} gte: Math.floor(new Date("2026-01-01") / 1000),
{"\n"} lte: Math.floor(new Date("2026-03-31") / 1000)
{"\n"} {"}"}
{"\n"}{"}"});
{"\n"}charges.data.forEach(c => {"{"}
{"\n"} console.log(ID: ${"{"}c.id{"}"}, Amount: ${"{"}c.amount / 100{"}"}, Tax: ${"{"}c.tax ? c.tax.tax_amount / 100 : 0{"}"});
{"\n"}{"}"});
Push this data to your accounting system quarterly, and your BAS is pre-filled. The ATO expects your BAS within 21 days of quarter-end; having Stripe as your single source of truth speeds up that process and reduces audit risk. Stripe's invoices also serve as proof-of-sale if the ATO ever questions a transaction.
Storing ABN and Tax ID Data Securely
Never store customer ABNs in your own database unless absolutely required. Stripe stores tax IDs (ABN, VAT, etc.) securely on their side and uses them only for tax calculation. If a customer provides their ABN at checkout, Stripe validates and stores it; you don't touch it. If you do need to store it (for reconciliation or compliance reasons), encrypt it at rest and limit access to your accounting/tax team. Treat ABNs and tax IDs like PII — they're sensitive business data, and mishandling can lead to data breach notifications and regulatory headaches.
Frequently Asked Questions
What if my business is under the AUD 75k GST threshold?
You don't have to register for GST, but you can voluntarily register if you want to claim input tax credits on business expenses. Many small businesses register early because the tax credit benefit outweighs the compliance burden. If you don't register, Stripe Tax doesn't apply, and you sell without GST. You also can't claim GST from customers, so your sales are cheaper — which can be a competitive advantage, but you can't claim back your own expenses. Weigh the trade-off with your accountant.
Do I charge GST to customers with a valid ABN?
No. If the customer provides a valid ABN and is GST-registered, GST doesn't apply to the sale (it's a business-to-business transaction). Stripe Tax checks the ABN; if it's valid, the rate goes to 0%. The invoice shows the sale as GST-free. If the ABN is invalid or the customer doesn't provide one, they're treated as a consumer, and 10% GST applies.
How do I verify a customer's ABN?
Stripe Tax has optional ABN verification built in. If you enable it at checkout, customers enter their ABN, and Stripe validates it against the ATO's register. This is optional; many businesses skip it because it adds friction to checkout. Instead, they trust the customer's statement and let Stripe Tax use the address to determine the rate. For high-value B2B sales, verification is worth the friction; for low-value B2C, skip it.
What happens if I make a mistake on a Stripe Tax invoice?
Stripe Tax is designed not to make mistakes — it applies published ATO rules and doesn't allow manual overrides. If a customer or an invoice has a genuine error (wrong address, wrong rate applied), you can issue a credit note in Stripe and create a corrected invoice. Keep both on file; the credit note explains the correction, and the new invoice is audit-ready. For significant errors, notify the ATO; they're lenient if you correct it proactively.
Can I use Stripe Tax if I'm a sole trader?
Yes. Sole traders have ABNs (they're issued automatically) and can register for GST just like any other business. The process is the same — register with the ATO, get your ABN, add it to Stripe Tax, and you're done. Stripe doesn't distinguish between sole traders, partnerships, and companies; GST applies to all of them over the threshold.
What's the difference between a tax invoice and a receipt?
A tax invoice is a formal document required by the ATO if GST is involved. It must include the seller's ABN, the buyer's name/ABN, itemised tax, and GST amount. A receipt is a simpler proof-of-purchase that doesn't have all those details. Stripe's PDF invoices are full tax invoices — they include everything the ATO needs. That's what you send to customers and keep for your records.
The Bottom Line
Australian GST and ABN compliance aren't optional, but they're also not hard — not if Stripe does the heavy lifting. Register with the ATO, add your ABN to Stripe Tax, and let Stripe auto-calculate tax on every sale. Invoices are generated automatically, ATO-compliant, and stored forever in Stripe's dashboard. Your accountant loves it because the source of truth is clear. You love it because you're not manually calculating tax rates or worrying about audit risk. Every tier at Velocity X uses Stripe Tax from day one. Build the product; let Stripe handle the compliance. That's how senior operators think.