Billing Software Development Services

Discover what superb billing software development services look like. Build a custom billing solution to ensure the smoothest flow of your revenue stream!

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Billing Software Development Services We Provide


Relevant offers billing consulting services that will help you to tackle your particular business challenge, avoid overspending and ensure the long-term stability of your organization.

Custom Billing Software Development

We build robust billing software explicitly tailored to your current processes and business needs so both you and your customers can get the best experience possible.

Third-Party Integration

Our team will help you connect your billing system with other apps and services, so you can create an integrated system to meet your particular billing requirements fully.

Support and Maintenance

Our professional engineers will accompany the development and the entire life cycle of your billing software to make sure your solution works flawlessly and remains relevant.

Core Billing Software Features


Invoice creation

A billing software solution generates new invoices in various formats. The feature helps you build invoices based on existing documents or design new templates from scratch.


Invoice delivery

One of the primary functions of billing software is the delivery of the invoice. Your customers or partners will be able to receive invoices the way they want it – for example, by email.


Revenue calculations and tax reports

A good custom billing solution easily handles revenue calculations and tax reporting. It is one of the most valuable software features as it eliminates the need for additional tools.


Automated notifications

A billing software solution allows businesses to automate notifications of payment dates and scheduled invoices. The system sends automated reminders to all participants before their payments are overdue.



Good billing software provides you with all essential data analytics, visualization, and reporting tools. The system creates the reports and allows you to customize them and choose the format for files export.


Multiple payment methods

Billing platforms efficiently simplify the payment process by adding several payments options, including credit cards, bank wires, PayPal, and more. This feature helps you provide a better experience to your customers and partners.


Cross-platform access

Your custom platform should also provide access through various operating systems and devices such as tablets or smartphones. It is truly one of the essential features of billing software, as it ensures flexibility for your users.


Multilingual functionality

This feature allows your software to speak its user's business language, which is particularly important for companies that operate globally. This function helps you do your invoicing in various languages depending on where your debtor is based.


Multi-currency feature

Such functionality allows choosing from different currencies depending on where your business opportunities lie. With this function, you can easily manage your revenue, taxes and get payments in various currencies.

Our Tech Stack

We thoroughly pick the technologies to create intuitive, feature-rich, and attractive billing software that perfectly anticipates your business needs.

React and React Native
Microsoft Azure
Google Cloud

Other Fintech Solutions We Provide

Project management software development

Plan, organize, and keep track of the state of your projects easily! Help your team to complete their tasks in the most effective way.

Mobile payment software solutions

Give your customers a convenient tool to pay. Embrace a smart, relevant, and cost-effective way to sell more!

Document management system

Get rid of tiresome paperwork right now! Automate your organization’s document flow and free up more room for the tasks that matter.

Custom payroll software development

Still, think of payroll processing as a real pain? Create the right software and take this burden off your team’s shoulders.

Our Portfolio


Reducing paperwork for construction companies

View case


Developing a SaaS platform that assists UK homebuyers

View case


Automating generation of weekly payroll reports

View case

Client testimonials

Vahid Walker
Founder of Biderator

We needed skilled staff and no downtime, which is what they’ve delivered. Relevant Software’s flexibility with new ideas, reliability, and transparency add tremendous value to the collaboration, which is foreseen to continue.

Sondre Rennan Nesset
CEO at Sensor Innovation AS

They stayed within our budget and scope, and their deliverables met our expectations. Quality results to-date make re-engagement for further development likely. The project’s thorough discovery phase benefited Relevant Software’s successful execution.

Alexander Sagen
Head of Cloud & Web Software at Airthings AS

They delivered everything they said they would. I'm very happy with them. Relevant Software established a smooth process using agile methodology, while their responsiveness and personable approach contributed to the positive experience.

Paul Carse
CTO at Life Moments Ltd
United Kingdom

We needed a flexible, reliable partner that could turn our idea into reality, one who could quickly provide a team of experts that could design and build our product and infrastructure. Meeting with some of the Relevant team in London, we were impressed by their approach.

Christoph Renk
Founder & CEO of GommeHD.net

The reason we worked with Relevant Software is that they were very proactive about getting information from us. Other companies move slowly, but these guys move fast which is what we liked about them. Before we even kicked off the project, we would go into a lot of detail. That was quite impressive for us.

Ole Jørgen Næss
VP of Product and Engineering at Svenn

We had the challenge to find a trustworthy outsourcing company that we could rely on. Previous attempts ended badly and we needed to find a company that had the skills, good communication and was fair on price. We chose Relevant Software because we felt that they understood our business needs.

Balazs Wellisch
CEO at GameIQ

Relevant Software could adjust to our needs and provide the services that we needed in a way that they became part of our group very quickly. They were dedicated to the project and made sure every stage was made visible to the client.

Andriy Chemes
Co-founder at Radio Skovoroda

We were blown away by the team’s dedication and speed of work. We approached Relevant Software with the goal of creating one of the best online radio experiences in the world. I would say they have successfully achieved this goal.


What is billing software?

Billing software is the kind of software that allows you to trace the products and services, invoice your customers for them and receive the payments. These software solutions also can track how many hours your employees work or how much money is spent on a particular project.

Billing and invoicing software help various entrepreneurs – big and small - to efficiently manage their invoices. There are many kinds of billing software in use today, ranging from elementary ones to very advanced billing platforms with many sophisticated features.

What are the benefits of billing software for my business?

We've outlined the key benefits of billing software below:

  • You can create invoices easily
    One of the main advantages of billing programs is convenience and time savings. While the manual billing process is very time-consuming, billing software makes it much easier for you as it eliminates the need to verify the transactions, register the information in records, and take care of the invoices.
  • You get payments faster
    The quicker you send the bill, the earlier you get the money, right? And various billing software tools offer you a much easier and fast payment processing. The software sends the bills to the users of your products and services automatically at a time.
  • You can manage your operations better
    The online billing software allows you to track all types of invoices - sent, paid, and unpaid - and send automatic reminders to your customers which accelerates the billing process significantly. Having billing software is one good way to better manage your data and keep it in one place.
  • You save costs
    According to the Finnish State Treasury, an incoming paper invoice involves costs of up to 50 euros for the receiving firm. E-invoicing allows reducing these costs to 10 euros if the company semi-automated the invoice process, and 1 euro if the complete automation process took place. So the cost savings benefit of choosing an online billing software is quite apparent.
  • You can simplify the reporting process
    The days of reporting being a complicated task have already been gone. With billing software, you can generate such documents with a few clicks. What's more, you'll be able to monitor and analyze all the necessary invoices-related data with the help of the dashboards.
    Billing platforms also offer you the ability to manage multiple customer-vendor records easily. You can even create reports on buying patterns and foresee money flows, which in turn helps you make better decisions on your spending. The sheer comfort level of this alone makes it well worth having a billing platform, but these are just a few advantages of this software. If you want to learn more on the topic, read our blog on SaaS billing. If you are ready to start your billing software development project, contact us!
Why should I favor custom billing software over an off-the-shelf tool?

To understand why custom billing software development could be the right decision for your company, you need to know its advantages. So why do other organizations bet on custom development? Because of:

  • Advanced functionality. The truth is that the standard set of standardized software functions may not be enough for your organization. And custom billing software development offers you the flexibility to create an app that fully meets your business needs.
  • Smooth integration. Another huge benefit of custom software development is integrating your platform into the existing software ecosystem without creating any troubles or reducing productivity.
  • High scalability. During growth, you may understand that you need an even more powerful, more feature-rich tool or need to extend its functions. Custom software allows attaining that goal with no hassle.
How to create online billing software?

Here are steps that describe the process of developing a billing solution.

To help you begin building billing software, you need to decide what kind of solution this will be. For example, it can be a straightforward one used in stores for billing purchases or a large-scale billing platform such as a clinic billing system.

The next step is to determine the necessary components of your billing tool, and they will work with one another. Think of the UI part. Today, most billing systems are web-based, as users only have to install a browser to use the app. Think about the technologies you will use to build billing software.

Another essential component is the billing engine responsible for accepting requests, taking input as the product IDs, knowing and consolidating the prices, generating bills, etc. Then there is a database that keeps the details about all your products and services and other important data. Two more things to think of in the context of components are the admin modules and the component responsible for taking out the outputs from the engine and creating invoices.

As the idea here is to make components capable of handling various error conditions, you need to code and test them one by one and then integrate them. After that, if you have a working system, you can continue enhancing it, so it becomes fault-tolerant.