PaySlate + WooCommerce

Most “WordPress invoicing” plugins are actually WooCommerce invoicing plugins: they generate PDFs for store orders and are useless without a cart. PaySlate is the other kind: a standalone invoicing system that needs no store at all.

No WooCommerce? Perfect.

If you bill clients for services (design, development, consulting, anything quoted rather than carted), you don’t need an ecommerce stack. PaySlate connects directly to Stripe or Square and handles the entire invoice lifecycle itself: line items, delivery, payment, receipts, reminders.

Running WooCommerce? Also perfect.

PaySlate detects WooCommerce and reuses what you’ve already configured: your country list and your existing Stripe or Square credentials. No duplicate gateway setup, no conflicting checkout flows, Woo keeps selling products, PaySlate handles the quoted work.

Invoices vs orders: when you need both

A store order is self-serve: the customer picks, pays, done. An invoice is negotiated: scope agreed, deposit up front, balance on delivery. Agencies and product companies often need both, Woo for the storefront, PaySlate for the project work. They coexist on one site without stepping on each other. See everything PaySlate does.