Looking for a reputable payment gateway provider for your online Shopify store in Australia? Payment Express is a strong leader in the market, offering its merchants real time payment processing, PCI DSS compliancy, customizable payment pages and secure data collection. A fully supported payment gateway on Shopify, Payment Express is an excellent choice for merchants who want to accept credit card payments quickly, safely and seamlessly. We guide you through a complete integration process that works for both existing and new accounts.