Sales tax and VAT software for WooCommerce

No, and WooCommerce says so directly. Its own answer is that WooCommerce Tax calculates and collects the right amount of tax at checkout, but does not file returns or remit payments to any tax authority on your behalf, and that filing and remittance remain your responsibility. WooCommerce points you to a third-party account for that. Core WooCommerce gives you a taxes report under Analytics, which is a report rather than a return. Commenda files across all 50 states on each state's required frequency, files VAT and GST returns across 70+ countries, tracks remittance per jurisdiction, and files amended returns where a period needs correcting.

Because WooCommerce Tax uses your store address as your tax nexus, and only collects where you have that nexus. WooCommerce's own guidance is that if you need to charge tax in another state, you add a tax rate for that state alongside automated taxes. Its blog puts it more bluntly: WooCommerce Tax is free, but it only supports one store location, and if you operate in multiple countries or states you will need a different tool. So the automated part covers where you are based, and every other jurisdiction is a row you maintain. Commenda calculates on the delivery address in every jurisdiction you are registered in, and tells you when a new one is coming.

Through a plugin you install in WordPress like any other, then an API key and a corporation ID from your Commenda dashboard, both checked when you save them. From then on tax is calculated while the shopper is in the cart and again when the order is created, using the shipping address and falling back to the billing address. The rate applies per line, shipping included, and the order totals update to match. It works with the classic cart and checkout pages and with the newer block based ones. There is no engineering work on your side.

They stay where they are, and while calculation is on, the rate Commenda returns is what applies to each line. Two switches sit in the WordPress admin and they are independent: one enables tax calculation, the other sends completed orders to Commenda. That means you can start by sending orders only, so your real exposure gets measured against every state threshold while your storefront keeps charging exactly what it charges today, then turn calculation on when you are ready. Worth knowing for comparison: WooCommerce documents that enabling its own automated taxes overrides the manual rates you added for your nexus locations, along with their compound and shipping toggles.

In core WooCommerce it is inherited. Shipping tax defaults to the tax class of the products being shipped, and where an order mixes classes, the standard rate wins if any line uses it, otherwise the first class listed does. WooCommerce Tax adds one hard-coded exception: it has enabled shipping tax for Florida by default since version 1.26.0 for stores based there, and the only way to switch that off is a code filter. With Commenda, shipping goes over as its own line under a shipping tax code, so whether it is taxable is decided by the rules of the jurisdiction the order is going to rather than by what is in the basket.

Three separate things, and you maintain all of them. WooCommerce's guide has you create an additional tax class for digital goods and enter a rate row for each of the 27 EU member states, and states that if VAT rates change you need to update them yourself. Collecting and validating a customer's VAT number needs the paid EU VAT Number extension, which WooCommerce notes can no longer validate UK VAT numbers because HMRC now requires each merchant to register an API key. IOSS needs a second paid extension, which produces a report you then submit. Commenda covers VAT, GST, and sales tax across 70+ countries from one platform, including EU VAT with OSS and IOSS.

The order still goes through. If the address is not complete enough to price, the checkout shows a line asking for an address rather than guessing a rate, and it clears itself once the address is filled in. If a calculation fails outright, the order completes on whatever WooCommerce would have charged, so nobody is stuck at payment. Every calculation is logged, and tax calculation can be switched off from the WordPress admin without removing the plugin.