If you work as a freelancer online, one of the most important aspects for managing your finances is keeping your invoices and customer payments in order. There are a number of commercial apps and systems you can use to do this, however they will charge you a monthly fee or take a cut of your payments. Chances are you already work with WordPress or know how it works, there are a number of free plugins you can use to turn WordPress into a customer invoicing system.

The plugins include features like client management, PDF invoices, reporting, recurring billing, discounts, estimates and more.

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In this post we have gathered together the best Free WordPress invoice plugins, these will help you keep your clients in order and make sure you get paid on time.

Sliced Invoices

A flexible, well-supported, and easy-to-use WordPress invoicing plugin to create professional quotes and invoices that clients can pay for online. Sliced Invoices is an invoicing system that is easy to use but at the same time comes packed with features to help make your quoting and invoicing a breeze.

  • Free Plugin with Paid Extensions


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WP Invoice

WP-Invoice lets WordPress blog owners send itemized invoices to their clients. Ideal for web developers, SEO consultants, general contractors, or anyone with a WordPress blog and clients to bill. The plugin ties into WP’s user management database to keep track of your clients and their information.

  • Free Plugin with Paid Extensions


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Sprout Invoices

Premium WordPress Invoicing Plugin. Take control of your invoicing! Fully customizable, no limits, and features you can’t get anywhere else. Reduce the time spent getting paid! Improve your business workflow with automated tasks for fielding project requests, estimating projects & getting paid.

  • Free Plugin with Pro version and Paid Extensions


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Invoice King

Invoice King Pro makes creating and sending your invoices simple. The invoice creation interface gives you full control over every word on your invoice. Choose a different theme to give your invoices the look, style and layout that you want.

  • Free Plugin with Paid Extensions


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Invoiced WP

The Most effective way to Get Paid by your clients. Rather that using a spreadsheet or word processor sent through to get your invoices to your customers Invoiced WP makes the creation of invoices faster and easier. Send it directly from your webiste and get paid.

  • Free Plugin


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Sumo Invoices

SUMO Invoices is a Complete WooCommerce Invoicing System. It supports the PDF Invoice and PDF Proforma Invoice. SUMO Invoices is highly customizable and is a Must Have WooCommerce Plugin.

  • Paid Plugin $22


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Quip Invoices

Quip Invoices is a complete invoicing solution built directly into your WordPress website. Create and send invoices, accept credit card payments using Stripe or Paypal, store client information and track your sales with Quip Invoices.

  • Paid Plugin $26


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WP Pro Invoicing System

The “WP PRO Invoicing System” WordPress Plugin is a standalone plugin that allows you to create invoices on your WordPress site. It has many powerful features to handle invoices on your website. You can easily Create/ Edit/ Manage/ Export/ Send/ Track/ Report/ … your invoices in just a few clicks.

  • Paid Plugin $29


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