Best PHP Invoicing and Billing Scripts

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Do you want to automate your billing and invoicing process and receive payment faster? PHP invoicing scripts will streamline your billing and invoicing process and make it more efficient. 
These scripts come with customizable templates that help you build professional invoices. They can also automatically attach and send PDF invoices to your customers via email once a transaction is complete. In addition, they have built-in tax reporting and deductions and multiple payment processing options that make it easy to receive payments from customers.
PHP invoice systems can be web-based or self-hosted on your server. 
In this post, we'll look at some popular  PHP invoicing scripts  that are available on CodeCanyon.

Classic Invoicer is an example of invoicing PHP scripts available on CodeCanyon.

Best-Selling Invoice PHP Scripts on CodeCanyon
For a low-cost payment, you can purchase one of these high-quality premium PHP invoicing scripts that come with a wealth of features and support from developers. 
Also think about incorporating   live chat PHP scripts  on your website to help you provide well-rounded customer services that will keep your clients coming back. 

Best Invoicing PHP Scripts
Let's look at the six PHP invoicing scripts on CodeCanyon that stood out for me. 
1. Geo POS: Point of Sale, Billing and Stock Manager Application

Geo POS  is a comprehensive system packed with all the features needed to run a business, including a comprehensive point of sale solution, CRM, HRM, invoicing, inventory management, and more.
When it comes to invoicing, you can create and track invoices, add custom tax and discount rates per product, and send quotes with a proposal, before converting the approved quotes into invoices. You can get paid online for your invoice by sending unique invoice links by email. 
In addition, you can create pro forma invoices and delivery notes, and you can select tax types for invoices. The invoice system is integrated with the stock manager to show what's in stock for particular products.
The application has a ready-to-use REST API server, so you can link it with other applications. It integrates with popular payment gateways including Stripe, 2Checkout, PayPal, Razorpay, SecurePay, and more. 
2. iBilling: CRM, Accounting and Billing Software

If you're looking for an intuitive and complete invoicing system, then iBilling Invoice will help you create invoices quickly, track payments, and get paid faster online. You can send invoices directly to the customer from the portal. The invoice is accessible from anywhere with a unique invoice URL and an authentication token. The customer can download a PDF invoice with a single click. 
With this PHP invoicing web application, you can create recurring invoices, accept partial payments, and attach invoice transactions with bank accounts. You can integrate it with payment gateways to make it easy for customers to pay their invoices online. 
You can set your income goal and see a full history of your invoices, including related transactions and a sent email log. 
3. Trending: Billar—Invoice Management System

Billar is one of the newest PHP invoice management systems on CodeCanyon and it has already gained trust among users in a very short time. It is perfect for managing invoices and clients, keeping track of bills and transactions, and generating invoices. Invoices can be sent via email, and clients can also receive reminders for pending bills. 
You can set up recurring invoices for clients. The invoices will be autogenerated and automatically sent to customers. The intervals can be monthly, quarterly, semi-annually, or annually.   In addition to invoicing, you can keep track of all expenses, manage products and services you're selling, and see reports like invoice summaries. You can also manage users by their roles. Customers can pay by PayPal, Razorpay, and Stripe.

4. Rose Business Suite: Accounting, CRM and POS Software

Rose Business Suite is built with the Laravel framework. This premium billing application comes with lots of features including mobile support POS and is available in 30 languages. It has a client management system that handles customers and contact details, customer financial information using customer wallets, and customer reports.
You can issue standard invoices and convert quotes approved by customers into invoices. Invoices can be sent by email or SMS. If sent by SMS, a short invoice URL will be included.  
As for billing, the script handles all kinds of taxes, discounts, and delivery notes. It integrates with a variety of SMS services like Twilio. Ready-to-use payment gateways like Stripe and PayPal are included.

5. Simple Invoice Manager

Simple Invoice Manager is a multilingual PHP-based web application that allows you to manage your invoices, payments, quotations, and customers. It has a simple and easy-to-use interface. The dashboard has two levels of users: admin and sales. You can manage users and allow customers to log in, view their invoices, update their details, and make payments. 
Invoices can be customized by adding logos, emails, telephone numbers, and tax rates. You can add products so you can easily add them to invoices. Simply create sales and send a PDF invoice by email. You have the option to set up recurring invoices. Customers can make payments online using PayPal and Skrill. 
6. Classic Invoicer

Classic Invoicer is a responsive web-based invoicing and client management system that helps you create custom invoices and send them to your clients by email. You can add customers using the simple client management system, create customized invoices, and manage and track your income through detailed reports.
In addition, you can manage products to make it easy to bill for them on an invoice. You can also add taxes and manage access according to user roles. This system is built using the Laravel 5 framework. It uses jQuery and a MySQL database.
7. Neo Billing: Accounting, Invoicing and CRM Software

Neo Billing is a comprehensive billing, accounting, and CRM application that's available in 21 languages. It manages all aspects of a business. Invoices can include custom tax rates and discount rates per product. You can send quotations with a proposal via email and convert quotes into invoices. You can receive online payments with a unique invoice link. You have access to records of invoices with specific customers, including income and expenses by customer. 
Free PHP Invoicing Scripts 
If your budget is tight, there are free PHP invoicing scripts you can download and set up for an efficient invoicing and billing system that will make your clients happy. Free PHP scripts come in all sizes and shapes. Some have enterprise-level features, while others have limited features that allow you to get started. 
1. BambooInvoice  

BambooInvoice is free open-source invoicing software intended for small businesses and independent contractors. This easy-to-use invoicing application has a clean interface that allows you to create invoices, add tax rates, and track your invoices. You can generate detailed reports that include graphs. It is available in 11 languages and is compatible with all modern browsers.
BambooInvoice  is  built  using PHP 7.x and needs a database (MySQL and MySQLi 5+ are known to work, and drivers are included for MSSQL, Postgre, OCI8, SQLite, and ODBC). In order to generate PDFs, you'll need the DOM extension enabled.
2. PHPUncle

PHP Billing System is an online invoice script that is based on PHP, MySQL, and CodeIgniter. Using this system, you can create and manage invoices, quotes, customers, and reports. Customers can log in to view invoices and quotes, and can request for them to be sent by email.  
3. InvoicePlane  

InvoicePlane is a free, self-hosted, open-source invoicing application that helps you manage your quotes, invoices, clients, and payments. This highly rated invoicing script has been downloaded over 100,000 times from 193 countries. 
You can customize InvoicePlane to make sure it fits your needs by selecting from different themes, setting amount formats, modifying email and PDF templates, and more. Your clients can pay their invoices using one of 25 different online payment providers like PayPal and Stripe, or even by using Bitcoin via Coinbase. InvoicePlane is translated into many languages by community members.
4.  Invoice Ninja

You can use the free and open-source Invoice Ninja to create a custom branded invoice design. With this app that was built using Laravel and Flutter, you get recurring invoicing, auto-billing, real-time quote creation, custom proposals, expense reporting, and more. it supports more than 40 payment gateways, including Stripe, PayPal, and WePay, and customers can also pay via credit card, ACH, Bitcoin, etc.
5. PHP Invoice Script

PHP Invoice Script is a self-hosted, open-source PHP and MySQL invoicing script that allows you to send invoices to customers and also keep a history of those invoices. You can add and manage customers, create and send unlimited invoices, add products to a catalog section and assign them to categories, add taxes in the tax section, create unlimited staff accounts, and determine access according to roles. You can also get weekly, monthly, or annual invoice reports from the invoice management section. 
Creating Payment Terms That Get Fast Payments
Cash is the lifeblood of small businesses. Terms of payment are concerned with the timeframe of payment—in short, getting paid on time so you can pay your bills and keep your business open. 
What does getting paid on time mean? You have to define this clearly, in a way that leaves no doubt about when and how you expect to be paid. 
The words you choose to use on an invoice can make it easy or difficult to get paid. You want your clients to keep coming back by creating a win-win situation between you and the client. 
So how do you ensure your invoices get paid fast?
Transparent Contracts
No one likes hidden surprises. It's important that the client agrees with you on the payment terms explained in the contract. For big projects, make it clear that you expect the first 50% of the payment before the project begins and the remaining 50% after the project has been handed over to the client. 
Professional Invoices
A professional invoice creates trust, removes confusion, and minimizes the chances that clients will question what they've been billed for. You need to make sure that your invoice includes the following: 

your business logo, name, address, telephone, and email
client details like name, address, telephone, and email
an invoice number for tracking and communication with the client
clearly explained line items of services you're billing
amount and currency billed for each line item
taxes and discount information
a grand total so the client is clear about the total amount they should pay
terms of payment clearly stated, without any ambiguity
methods of payment 
a friendly note thanking clients for their business

Payment Due Dates
Be very clear about when you expect to be paid. You can write, for example, "Payment due on 30 September 2022." Writing out the month and date gives a sense of urgency. It also ensures the client won't overlook the due date.  
Explain Commonly Used Invoice Payment Terms
If you have to use payment terms like "Net 30" or "Payment due upon receipt" then an additional line explaining exactly what they mean goes a long way to avoiding confusion. Even then, it is always advisable to add the exact date the payment is due. 


Offer Discounts on Early Payment
Offer incentives that encourage customers to make early payments. For example, you can offer a 1% to 5% discount to encourage them to pay before an invoice is due.  
Methods of Payment
Be very specific about your preferred method of payment: cash, checks, credit cards, bank transfer, online payments, mobile payments, or automatic payments. 


Make it convenient for your clients to pay you, and you'll be surprised how quickly they do it. Some methods you can use to make it easy for clients include:

integrating payment gateways like PayPal, Stripe, and more
asking clients about their preferred method of paying
adding a hyperlink to a payment portal in your invoice or in the email with a PDF invoice

Also understand that clients have more confidence that data and private financial information is secure when they use payment gateways like Paypal or Stripe. 
Polite Thank You Note
Polite communication maintains positive relationships. Have a note section that thanks your customer for doing business with you.
Ask for an Online Review or Testimonial
You can also go a step further and provide a link asking clients to leave an online review or testimonial on your website.  
Get Your Invoicing Script Now! 
The PHP invoicing scripts I've covered in this post are just a few that stood out for me. But you can find more  PHP invoicing scripts  on CodeCanyon. You can also have look at our  PHP CRM scripts . 

On Envato Tuts+, you will find lots of resources to help you learn how to make your invoicing cycle more efficient. We've selected some for you: 

What Is a Professional Invoice? A Complete Beginner’s Guide

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