Verifactu invoicing for your WooCommerce

Finseed has an official plugin for WordPress and WooCommerce: “Finseed: Facturas Verifactu para WooCommerce”. You install it easily from your WordPress dashboard, link it to your Finseed account with a connection token, and from there your store issues Verifactu invoices automatically. You don’t need to touch any code or set up an API: the plugin detects your orders and Finseed handles the entire fiscal side.

The plugin is published in the official WordPress.org directory, with the security review and verified updates that implies. Not every Verifactu module on the market goes through that scrutiny: some are only distributed from their maker’s own website. See the installation guide.

No, and that matters for your legal protection. The plugin does not issue the invoice: it only tells us a new order exists. Finseed generates and signs the Verifactu invoice and sends it to the AEAT, outside your WordPress.

Under Verifactu, the software that generates invoices (the SIF) takes on strict legal obligations, including a declaración responsable filed with the AEAT. With Finseed, we are the SIF, and that responsibility is ours, not yours. A plugin that generates invoices inside your WordPress makes you the integrator of the billing system, with the obligations that come with it.

No. Finseed covers the full cycle with a single plugin: ordinary and simplified invoices, credit notes, the NIF field at checkout, and sending the invoice to the customer. Issuing credit notes isn’t optional: the law requires them whenever there’s a refund. Some Verifactu modules only issue them if you also buy a paid plugin from another maker; with Finseed they’re included, including for partial refunds. If you currently use a PDF invoicing plugin, we recommend disabling it once you activate Finseed to avoid duplicate numbering; our invoices already include everything you need. See how it works.

In Spain there is no such thing as an “official homologation” for Verifactu software: no vendor can show you an AEAT homologation certificate, no matter what their website says. What the law requires is a declaración responsable (statement of compliance) from the software maker (RD 1007/2023), and ours is public: you can download it and send it to your accountant. We are also colaboradores sociales de la AEAT, the official status that lets us submit invoices to the tax agency on our clients’ behalf. If your accountant asks for “the certificate”, send them these two references: it’s exactly what they need to see.

No, never, not even when you go live. As colaboradores sociales de la AEAT, we sign and submit your billing records with our own certificate. You only sign an authorization when you sign up, and you're ready to invoice. This is a real practical difference: other systems ask you to install your own digital certificate on their platform or process a separate authorization with the AEAT.

Yes. If you build or maintain WooCommerce stores for clients, you can manage several companies from Finseed, and we run a partner program for agencies and freelancers. Setup is the same as for your own store (plugin plus connection token), and the free test mode lets you validate the integration on each project before going live. Check the partner terms.

Every refund you process in WooCommerce automatically generates its credit note and reports it to the AEAT, without you doing anything. This includes partial refunds: if a customer returns 1 of 3 items from an order, the credit note reflects exactly that part, with each line’s tax correctly distributed. Partial refunds are the case that causes the most trouble in e-commerce invoicing, which is why we treat it as a first-class case, not a premium feature. More on credit notes.

Finseed classifies every sale automatically: standard Spanish VAT in its different rates, IGIC for the Canary Islands and IPSI for Ceuta and Melilla, intra-EU B2B sales exempt with VAT number validation against VIES, the OSS scheme for B2C sales within the EU, and exports outside the EU. We validate your customers’ NIF against the AEAT census before issuing, and if an operation arrives misclassified we block it before sending it to the tax agency, instead of sending an incorrect invoice. A sale of goods from mainland Spain to the Canary Islands charged with VAT, instead of exempt as an export, is a wrongly issued invoice: this is exactly the kind of mistake Finseed exists to prevent. See the supported tax types.

Yes. Finseed automatically decides between a simplified and a full invoice based on the customer’s data, and keeps a separate numbering series for each type, as the regulation requires. On classic checkout, the NIF field only appears as required when the order needs a full invoice, so you don’t add friction to private purchases or lose conversion. On block checkout, that same smart behavior is available from WooCommerce 10.1 onward (on earlier versions the field is visible to everyone, though optional). How the checkout behaves.

Yes. You can correct an invoice (for a refund, an amount error or a data change), fix the customer’s name or NIF after it was issued, and void invoices, all from Finseed, always leaving the trail Verifactu requires: under Verifactu, an invoice already sent to the AEAT is never deleted, it’s corrected with the matching document, and Finseed picks the right mechanism for each case (credit note, correction or void). Your numbering always stays correlative. How to void an invoice.

In the header of every invoice we issue, at the legally required size, with the AEAT verification link. Your customers can scan it to confirm the invoice was reported to the tax agency. You don't have to configure anything: it's included on every invoice type, including simplified invoices and credit notes.

You choose which order status triggers invoicing (for example “Completed” or “Shipped”). Once an order reaches that status, the invoice is issued, reported to the AEAT and emailed to the customer with your store’s branding, automatically. Your customers can also download their invoices from the customer portal whenever they need them, without writing to you to ask. Configure your order statuses.

The plugin works with WordPress 4.7 or later and WooCommerce 3.5 or later (PHP 7.4+), including stores running HPOS (high-performance order storage) and both classic checkout and block checkout; the NIF field on block checkout requires WooCommerce 8.6 or later, and its automatic hide-when-not-needed behavior requires WooCommerce 10.1 or later. It’s compatible with multilingual stores running WPML and with WooCommerce Subscriptions. If you run a non-standard setup, write to us and we’ll review it with you. See the full technical requirements.

Yes, with all of them. Finseed connects to your WooCommerce orders, not your payments, so it doesn't matter whether you charge with Redsys, Stripe, PayPal, Bizum, bank transfer or cash on delivery: once the order reaches the status you chose, the invoice is issued the same way.

You can issue standalone invoices from Finseed without needing a WooCommerce order, with the same controlled numbering and the same submission to the AEAT: useful for in-store sales, quotes closed over the phone, or any sale outside your website. And if you run several online stores, you can connect them all to the same account, each with its own invoicing series. How to issue standalone invoices.

Yes. You set up your series starting from the number you’re already at (for example, if your last invoice was F-2026-0341, the next one will be F-2026-0342), and numbering continues without gaps or duplicates. You don’t need to wait until January 1st to switch billing systems. Configure your numbering series.

Yes, all of them, whenever you want. Your invoices and your data are yours: you can export everything at any time, even if you downgrade to the free plan. You keep access to your history for inspections and for your accountant. Choosing a billing system shouldn’t be an irreversible decision, and we don’t want customers who are trapped: we want customers who stay because the product works. How to export your invoices.

From €14.95 a month, with a genuine monthly subscription: you pay month to month and cancel whenever you want, with no commitment and no annual payment upfront. Every Verifactu invoicing feature is included on every plan, and you can connect several stores on any of them. Before you sign up anywhere, check the fine print: in this market it’s common to advertise a “per month” price that’s actually billed as a prepaid annual licence. See plans and pricing.

Yes, with the free, unlimited test mode: you connect your real store, issue test invoices and see exactly how everything will work, with nothing sent to the AEAT and no card required. When you’re ready, you switch to live mode and start invoicing for real. How to go from test to live mode.