Best alternatives for Tax Rex ‑ Sales Tax Automation Shopify app in 2026 [Updated]
PickYourApp Review Team
6 min read
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Nov 08, 2025
Handle tax compliance and documentation effortlessly with specialized Shopify apps for sales tax automation, GST/VAT management, and professional invoice generation. From US sales tax filing to EU/UK compliance, these apps help merchants generate tax-compliant invoices, manage multiple tax rates, automate returns, and create detailed reports. Whether you need GST solutions for India, VAT handling for Europe, or state-by-state tax management for the US, these tools simplify complex tax requirements while ensuring accuracy and compliance.
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#1. Download GST-ready invoices. Get useful sales reports with all necessary data for GSTR-3B and GSTR-1
Generate professional GST invoices directly from your Shopify orders without importing data to external software. The app automatically creates GST-ready invoices and sends them to customers via email download links. Calculate GST accurately based on your fulfillment locations - perfect for businesses shipping from multiple warehouses with different GST numbers. Choose from 4 customizable invoice templates to match your brand with your logo, legal details and business information. Create e-Invoice JSON files and get comprehensive sales reports containing essential data for GSTR-3B and GSTR-1 tax returns. This GST invoice solution helps Indian businesses maintain tax compliance while saving time on invoice management.Install from Shopify App Store
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#2. Create, print, and send feature-rich invoices, packing slips, refunds, and other essential documents
Generate professional PDF invoices, packing slips, refunds, and other business documents with Oxilayer's intuitive app. The built-in drag & drop editor makes it simple to customize ready-made templates with your brand elements - no coding required. Set up automated workflows to deliver documents directly through email, customer accounts, and checkout. The app integrates seamlessly with Shopify Flow and admin features, helping you manage tax compliance and document delivery. Whether you run a small boutique or large enterprise store, Oxilayer adapts to your needs with flexible template options and automated document processing.Install from Shopify App Store
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#3. Drive Sales With an Automated Affiliate Platform to Manage Influencer & Referral Marketing Programs
Simple Affiliate makes managing your affiliate marketing program straightforward and efficient. Affiliates can create accounts and log in directly through your store, making registration seamless. The platform helps you convert customers into active affiliates with customizable commission structures based on products, categories, and discount codes. Track sales, manage unlimited affiliates and groups, handle referrals, and process commissions automatically or manually. The system includes automated tax form handling and consolidated 1099 reporting. With easy setup and dedicated support, you can quickly launch an affiliate program that matches your brand's needs. Monitor performance, set flexible reward rules, and grow your sales through affiliate partnerships - all from one central dashboard.Install from Shopify App Store
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#4. The sales tax filing partner for your brand, handling registration, filing, and multi-channel nexus.
TaxCloud provides comprehensive sales tax automation for Shopify merchants, specializing in registration, filing, and multi-channel nexus management. As a certified Streamlined Sales Tax (SST) service provider, we help businesses save on tax filing costs across 24 member states. Our solution features daily order synchronization, ensuring precise and timely tax filings. The U.S.-based support team guides merchants through every aspect of sales tax compliance, from initial setup to ongoing management. With automated nexus tracking, state-specific compliance alerts, and seamless TIC mapping using Shopify categories, TaxCloud delivers reliable sales tax management for multi-channel sellers. We make switching tax providers straightforward and ensure your records remain audit-ready.Install from Shopify App Store
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#5. Invoicing app with order printer and invoice generator for tax invoices & professional pdf invoices.
Vify Order Printer is an invoice generator that helps you create, customize, and download professional PDF invoices, packing slips, refunds, and B2B invoices in multiple languages and currencies. This order printer app lets you bulk print invoices and automatically deliver them to customers, staff, or B2B partners. Customize invoice templates by showing or hiding information on PDF files. Customers can download invoices anytime through the Customer Portal. The app automatically captures and displays VAT numbers on B2B invoices, supports different invoice styles, and provides near-24/7 assistance for smooth document workflows in growing stores worldwide.Install from Shopify App Store
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#6. Professional invoicing that goes beyond order printing.
Sufio delivers professional invoicing that's built for modern Shopify businesses, going well beyond basic order printing. This smart invoicing solution automatically creates and sends compliant invoices, credit notes, and receipts across all major regions. Perfect for global merchants, it offers complete multi-language and multi-currency support, while meeting complex B2B invoicing requirements. The app handles emerging e-invoicing regulations and creates legally compliant documents in multiple languages. With Sufio's automated reminders and Shopify's official recommendation for B2B transactions, you'll have everything needed for professional, compliant invoicing in one place.Install from Shopify App Store
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#7. Simple Invoice is a modern and minimalistic invoicing application that offers unique features.
Simple Invoice delivers modern, minimalistic invoicing that focuses on what truly matters for your Shopify store. This clean, user-friendly app creates professional invoices while removing unnecessary complexity. Set up takes less than a minute, and you can manage everything directly from your Shopify dashboard. The app supports multiple currencies and languages, letting you create country-compliant invoices for your international customers. Whether you need to send invoices automatically or manually, generate quotes, or process drafts, Simple Invoice handles it efficiently. Plus, all your documents - from invoices to packing slips - can be securely stored in the cloud for easy access. With its straightforward approach and essential features, Simple Invoice helps you maintain professional billing while keeping your invoice process clean and uncomplicated.Install from Shopify App Store
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#8. Show tax includes prices and tax excludes prices for all your products and set tax rules you need.
This dual price display app helps stores serve both B2B and B2C customers by showing tax-inclusive and tax-exclusive prices throughout your shop. Display both pricing options on your homepage, product catalog, search results, and product detail pages. Create custom tax rules based on specific countries, products, or customer tags, each with adjustable tax rates. Customize how prices appear with flexible design options and size ratios to match your store's theme. Choose to show both prices simultaneously or select tax-included/excluded only, giving you complete control over price presentation for different customer segments. The app makes it simple to implement clear, consistent pricing that works for all your customers, whether they're businesses or individual buyers.Install from Shopify App Store
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#9. We create GST Invoices for your clients and precise reports for your accountants/CA.
Generate professional GST invoices and reports that meet India's tax compliance requirements. This app helps you create accurate GST documentation for both B2B and B2C transactions, with built-in support for GSTR1 and GSTR3B reporting. Access preset GST reports, automated e-invoicing for B2B sales, and customizable reporting options that your accountant or CA needs. The app includes features like advanced packing slips, refund management, and automated invoice emails to customers. Download bulk reports easily and stay compliant with Indian GST regulations. Set up takes just minutes, letting you quickly start creating GST-compliant invoices for your clients.Install from Shopify App Store
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#10. TSE | RKSV | Switzerland: Compliant POS for DACH 🇩🇪🇦🇹🇨🇭. Z-report, cashbook, accounting.
OpenFiskal provides essential fiscalization services for Shopify POS merchants operating in Germany, Austria, and Switzerland. The platform ensures full compliance with KassenSichV and RKSV regulations through real-time receipt signing with QR codes for TSE and RKSV requirements. Compatible with all Shopify printers, the system handles sales, refunds, and exchanges while maintaining secure documentation. Merchants benefit from automated Z-reports for simplified bookkeeping, comprehensive cash book management with CSV exports, and specialized exports for tax audits including DSFinV-K and DEP7 formats. For Austrian businesses, the platform includes FinanzOnline integration for required receipt reporting. Personal support is available to help merchants maintain compliance and manage their POS operations effectively.Install from Shopify App Store