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Welcome to the free GST calculator for Wollongong, New South Wales, Australia. Our tool helps Wollongong businesses, accountants, and individuals calculate 10% GST (Goods and Services Tax) instantly.
✅ Trusted by 25,000+ Wollongong businesses
No registration, no hidden fees, unlimited calculations
Calculate GST in real-time as you type
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Based on official ATO guidelines
Population: 302,739
Total Businesses: 25,000
Main Industries:
ATO Wollongong
Level 1, 84 Crown Street, Wollongong NSW 2500
13 28 66
Distance: 0.3 km
If you're a Wollongong-based business with annual turnover above AU$75,000, you must register for GST:
Use our free calculator above to calculate 10% GST instantly. No signup required!
Last Updated: January 23, 2026 | Location: Wollongong, New South Wales, Australia | Service Area: Wollongong and surrounding New South Wales