antubis

This plugin extends WooCommerce and Booster for WooCommerce. It adds a new key “vat_number” to billing address when requested by API call. Also it will auto fill the VAT value when creating a manual order.
<h3>Arbitrary section</h3>

WooCommerce VAT to API

Show VAT number as part of billing address in the WooCommerce API

RVNSKI

What it does 
– Generates a Proforma Invoice (ISF) for unpaid orders (e.g., BACS). 
– Generates a VAT Invoice for paid orders. 
– LT company details (seller/bank), numbering series, prefixes/suffixes, “Start from” / “Next number”. 
– PDF attachments in emails: ISF (on-hold), VAT (processing/completed). 
– Unique protected download URLs (token + TTL) or “logged-in only”. 
– Templates can be overridden in your theme: <code>/yourtheme/lt-invoices-for-woocommerce/*</code>.
Notes 
– The VAT summary automatically follows WooCommerce tax settings. 
– PDF generation is handled by Dompdf (bundled). 
– Variables for showing client ID/VAT: billing_company_code, billing_company_id, company_id, billing_company_vat, company_vat, billing_vat_number, billing_vat

LT Invoices for WooCommerce

PDF invoices for Lithuania: Proforma and VAT invoices for WooCommerce orders.

WooCommerce VAT to API vs LT Invoices for WooCommerce