If you’ve ever tried running a business online, you already know the sales don’t stop when a customer clicks “buy.” That’s just the beginning. After that, you’ve got shipping, customer emails, bookkeeping, and yes, invoices.
Invoices aren’t glamorous, but they’re critical. They prove a transaction happened, keep you compliant with tax laws, and give customers the documentation they often need for their own records. And let’s be real: if someone emails you asking for an invoice you forgot to send, it’s not a great look.
The problem is, creating invoices manually is slow, repetitive, and, if we’re honest, easy to mess up. A missed zero, a forgotten tax line, or a delayed PDF can snowball into bigger headaches down the road. That’s why most WordPress store owners turn to invoice plugins.
Here’s the good news: you don’t have to spend a fortune. Some of the best invoice plugins for WordPress and WooCommerce are completely free. And in 2025, they’re better than ever.
This guide walks you through the top free invoice plugins for WordPress, what makes each one worth trying, and how to choose the right fit for your business.
Why Invoices Matter More Than You Think
It’s tempting to see invoices as “just paperwork.” But they do a lot more behind the scenes:
- They add professionalism. A branded PDF invoice looks way better than a plain email receipt.
- They keep you compliant. Many regions require invoices for VAT, GST, or local taxes. Skip this step and you risk fines.
- They save time. With automation, invoices are generated and sent without you lifting a finger.
- They help customers. People often need invoices for reimbursements or tax filings. Making them easy to access improves trust.
- They keep your books tidy. Come audit season, bulk exporting invoices beats digging through old emails.
Think of it this way: your online store could be beautifully designed, but if your back-office processes are messy, customers will eventually notice. An invoice plugin is a small addition that plays a major role.
The Best Free WordPress Invoice Plugins in 2025
There are plenty of invoice plugins out there, but not all of them are made for your store. Some are outdated, some are too limited, and a few just aren’t very user-friendly. The ones listed below stand out for their reliability, support, and the balance between automation and personalisation.
1. PDF Invoices, Packing Slips and Shipping Labels for WooCommerce – Webplanex
Webplanex Invoices is a recently launched plugin (August 2025) that deserves the top spot on our list. It’s an all-in-one solution packed with powerful features, offering both a free version and exceptional support in one place. It takes care of everything—so you don’t have to. If you want something that feels built for real-world WooCommerce stores, Webplanex Invoices should be at the top of your list. It handles everything from automatic invoice generation, so you don’t have to think twice.
Key features:
- Generates PDF invoices automatically with every order.
- Fully customizable templates (your logo, your colors, your branding).
- Includes packing slips, delivery notes, and shipping labels.
- Multicurrency support, perfect for international stores.
- Bulk printing and export tools.
- Audit-ready reports to make accounting painless.
- Even supports QR codes on invoices for faster processing.
Why it’s worth using: Many free plugins give you the basics but leave out important extras like bulk export or multi-currency. Webplanex manages to mix automation and flexibility, making it a great option whether you’re a small shop or scaling globally.
Check out Webplanex PDF Invoices.
2. PDF Invoices & Packing Slips for WooCommerce (by WP Overnight)
This plugin is one of the most old yet trusted in the market. It’s simple, trusted, and easy to use.
Key features:
- Automatically attaches invoices to WooCommerce emails.
- Packing slips are available for download or printing.
- Clean templates you can change as needed.
- Lightweight and easy to install.
3. Sliced Invoices
Not every business is product-based. If you’re a freelancer, consultant, or service provider, Sliced Invoices is an excellent free option. Instead of focusing only on WooCommerce orders, it lets you create professional quotes and invoices for client work.
Key features:
- Send quotes and convert them into invoices with one click.
- Professional, client-friendly templates.
- Simple tracking of payments.
- Optional add-ons for more functionality.
4. WebToffee WooCommerce PDF Invoices, Packing Slips, Delivery Notes & Shipping Labels
WebToffee’s WooCommerce solution covers every piece of order documentation you can think of, and it does it well.
Key features:
- Generate invoices, packing slips, and delivery notes automatically.
- Bulk printing and exporting.
- Customizable templates.
- Includes tax information like VAT/GST.
- Good support.
5. Sprout Invoices
Sprout Invoices is aimed made for professionals who need more than basic invoices. It’s flexible enough for agencies and freelancers who send recurring or detailed invoices.
Key features:
- Unlimited invoices (even in the free version).
- Accepting payments through multiple gateways.
- Built-in client management.
- Reporting tools.
Why it’s useful: You’ll find it helpful as it’s light and easy to use, if you’re handling billing clients on a regular basis, you can manage customers, send reminders, and keep track of everything in one place.
How to Choose the Right Invoice Plugin for your store
Picking the best plugin majorly depends on your business model:
- Using WooCommerce? Go for Webplanex, WP Overnight, or WebToffee.
- Freelancer or agency? Sliced Invoices or Sprout Invoices will fit better.
- Need full automation? Webplanex offers one of the most complete free solutions.
- Shipping-focused business? WebToffee is great for its delivery and label support.
Think about your needs today, but also about the future of your store. If you plan to expand, for example, multi-currency support might matter more than you realize right now.
Why Free Plugins Are Often Enough
You might wonder if you should just skip free plugins and go straight to premium. The truth? For most businesses, the free options cover 80–90% of what you need. Automatic PDF invoices, branded templates, and packing slips are all included.
Of course, if you need advanced reporting, integrations with accounting platforms, or some region-specific tax features, upgrading is always possible. But there’s no harm starting with free, especially since these plugins are actively updated and maintained and trusted by thousands of businesses already.
Conclusion
Invoices may not be the attractive part of running an online store, but they’re one of the most important elements. They keep your business professional and customer-friendly.
The plugins we’ve looked at in this blog are Webplanex Invoices, WP Overnight, Sliced Invoices, WebToffee, and Sprout Invoices. They cover all of your needs. Some are great for WooCommerce shops, while others are helpful for freelancers and agencies.
