WonderTax Labs vs SaleMint – Paddle Checkout for WooCommerce

SaleMint – Paddle Checkout for WooCommerce connects your WooCommerce store to Paddle, a merchant-of-record payment platform built for digital products. Paddle handles the checkout, tax calculation, and invoicing, while this plugin keeps your WooCommerce orders fully in sync. Need subscriptions? This free plugin handles one-time payments. For recurring billing, free trials, a Buy Now button, a self-serve customer portal, and one-click invoices, see SaleMint Paddle Pro — it’s a superset of this plugin, so nothing you’re already using changes. Full setup docs: salemint.io/docs/paddle/introduction. How it works When a customer places an order, the plugin opens Paddle’s hosted checkout (modal or full-page). After the customer completes payment, the Paddle transaction ID is captured and attached to the WooCommerce order. The plugin then fetches the authoritative order totals from Paddle — including any tax Paddle applied — and updates the WooCommerce order to match, so your records are always accurate. Key features Classic checkout & WooCommerce Blocks — Works with both the classic WooCommerce checkout and the modern block-based checkout. Modal or full-page checkout — Choose between an overlay modal or a full-page Paddle checkout, configurable from the gateway settings. Sandbox / live mode — Toggle between Paddle’s sandbox environment for testing and the live environment for production, without touching any code. Digital-only enforcement — The Paddle payment option is automatically hidden whenever the cart contains a physical product that requires shipping. This prevents it from appearing for orders Paddle cannot fulfil. Paddle tax categories — Assign a Paddle tax category (e.g. standard, digital-goods, ebooks, SaaS, software) to products, with a configurable store-wide default. Supports all 13 Paddle tax classifications. Coupon sync — WooCommerce coupons applied at checkout are forwarded to Paddle as discounts, so the transaction amount in Paddle always reflects the discounted total. Cart fee sync — Extra fees added to the cart (e.g. handling fees or surcharges) are passed to Paddle as line items and synced back after payment, keeping both records consistent. Automatic order totals sync — After payment, the plugin synchronises WooCommerce order totals — including line-item subtotals, discounts, fees, tax lines, and the grand total — with the values reported by Paddle. An order note is added documenting the sync for auditing purposes. Transaction & invoice ID tracking — The Paddle transaction ID and invoice ID are saved directly to the WooCommerce order and visible on the order detail screen. Transaction URL — A direct link to the Paddle transaction is saved with each order so you can jump straight to the Paddle dashboard from WooCommerce. Refund support — Initiate full or partial refunds from the standard WooCommerce refund interface; the plugin forwards the refund to Paddle automatically. Invoice button on order screen — A one-click button on the admin single-order page lets you open or download the Paddle-generated invoice without leaving WooCommerce. Order-pay page support — Customers can retry a failed or pending payment from the WooCommerce order-pay page; billing details are pre-populated automatically. Light and dark themes — Choose between Paddle’s light and dark checkout UI to match your store’s design. Free vs Pro Everything above is free, forever. SaleMint Paddle Pro is an add-on that layers recurring billing and its supporting tools on top — install it alongside this plugin and every free feature keeps working unchanged. Pro adds: Per-product Paddle tax category override WooCommerce Subscriptions support Signup fee handling Free trial support Auto-renewal via webhook, with HMAC-SHA256 signature verification Early renewal Update payment method from My Account Self-serve customer portal Buy Now button (Gutenberg block and Elementor widget) Customer invoices (View & Generate, cached and auto-regenerated) See the full Pro documentation or get Pro. Requirements PHP 8.1 or higher WordPress 6.0 or higher WooCommerce (latest recommended) A Paddle account with an API key and client-side token External Services This plugin connects to Paddle’s servers to process payments and load the Paddle JavaScript SDK. By using this plugin you agree to Paddle’s terms and privacy policy. Paddle JavaScript SDK The Paddle checkout SDK is loaded from Paddle’s CDN on any page where the payment gateway is active: Production: https://cdn.paddle.com/paddle/v2/paddle.js Sandbox: same URL (environment is set via the client-side token) This script is provided by Paddle.com Inc. and is required to open the hosted checkout modal. Paddle website Paddle Terms of Service Paddle Privacy Policy Paddle REST API The plugin communicates with the Paddle REST API from your server to create transactions and retrieve order details: Production: https://api.paddle.com Sandbox: https://sandbox-api.paddle.com Data sent includes order line items, customer billing information (email, country, postcode), and currency. No data is sent unless a customer initiates checkout.

Automate Your Sales Tax Compliance WonderTax Labs: Audita seamlessly integrates your WooCommerce store with WonderTax Labs for automated sales tax tracking, compliance, and real-time tax calculation at checkout. Features Real-Time Tax Calculation – Accurate sales tax rates calculated during checkout based on customer location Block Checkout Support – Full compatibility with WooCommerce Cart and Checkout Blocks Automatic Order Sync – All orders automatically synced to WonderTax Labs for tax compliance tracking Multi-Jurisdiction Support – Handles complex tax scenarios across all US states and jurisdictions Historical Order Import – Import and analyze past orders for comprehensive tax compliance Secure Integration – Enterprise-grade encryption for all credentials and data transmission Easy Setup – Simple OAuth connection process with minimal configuration How It Works Install & Connect – Install the plugin and connect your store to WonderTax Labs Enable Tax Calculation – Optionally enable real-time tax calculation at checkout Automatic Tracking – All orders are automatically tracked for tax compliance Stay Compliant – WonderTax Labs handles the complexity of multi-state tax compliance Requirements WooCommerce 8.0 or higher PHP 8.0 or higher WordPress 6.0 or higher HTTPS-enabled site WonderTax Labs account (sign up at app.wonder.tax) Privacy & Security This plugin connects to WonderTax Labs (app.wonder.tax) to provide tax calculation and compliance services. When you connect your store: Order data (customer location, product details, amounts) is sent to WonderTax Labs All data is transmitted securely over HTTPS Credentials are encrypted using industry-standard encryption No payment information is transmitted Data is used solely for tax compliance purposes Read our Privacy Policy for more information. External Services This plugin connects to WonderTax Labs (app.wonder.tax) to provide tax calculation and compliance services. Service URL: https://app.wonder.tax Service Documentation: https://app.wonder.tax/integrations/woocommerce/docs Privacy Policy: https://wonder.tax/privacy Terms of Service: https://wonder.tax/tos Data transmitted includes: * Order information (amounts, customer location, product details) * Store information (name, currency, timezone) * No payment or sensitive financial data is transmitted All connections use HTTPS encryption and credentials are stored securely.