Invoicing isn’t the most exciting part of running a business, but when done poorly, it creates delays, errors, and unnecessary costs. That’s why more and more platforms are asking: ‘’Can invoicing become more than just a compliance task… and actually drive revenue?’’

It can—and it should. With regulations shifting toward mandatory e-invoicing, and clients demanding faster, smarter systems, the opportunity is clear.

In this blog, we’ll break down how to turn invoicing into a valuable product, not just an obligation—so you can grow revenue, improve retention, and stay compliant:

Is invoicing Even a Problem To Be Solved?

Is E-invoicing The Solution?

Why Would Clients Pay You For Invoicing Services?

How to Turn Invoicing into a New Revenue Stream?

How To Choose the Invoicing Feature Provider?

Earn More and Pay Less with Space Invoices’ Invoicing API

 

 

Is invoicing Even a Problem To Be Solved?

Every company needs to invoice—it's simply part of doing business legally. Whether it’s a PDF or a paper invoice, someone has to sit down, write it, check the details, send it out, and hope it gets paid on time.

The bigger issue? Regulations are constantly changing, and people make mistakes. That leads to fines, delays, and more time spent fixing errors. And manual invoices? They’re often processed slowly, paid at the last possible moment—or even miss the date.

So yeah, invoicing works… but it could work a lot better. And that’s exactly why governments all over the world are starting to push e-invoicing.

 

 

Is E

E-invoicing is not the same as PDF invoices. It is a computer code, created by software/API, in a specific, human non-readable format. It is checked for compliance by the software, sent to the customer, checked again, and then received. The e-invoice, however, can be transformed into a PDF for humans to read, and is usually paid faster, as it often includes payment links and QR codes.

Governments around the world are slowly mandating e-invoicing, as it enables almost real-time reporting and helps with tax prevention. For businesses, it lowers mistakes, streamlines the invoicing process, boosts cash flow, can achieve global compliance and is significantly cheaper if done right.

No matter the regulations—e-invoicing is beneficial.

 

 

Why Would Clients Pay You For Invoicing Services?

Most of your clients may not be actively searching for an invoicing solution, but they are looking for a platform that solves problems in their niche.

Take the automotive industry as an example. A company needs a platform to manage car rentals, users, offers, and other operations, so they find you.

If your platform covers all the niche’s needs, is convenient, easy to use, and tailored to their workflow, and you also offer a fairly priced invoicing feature, they’re more likely to go with your complete solution—with invoicing as an upsell and a way to strengthen your One-Stop Shop position.

The same applies to your existing clients. They already trust your platform, and invoicing becomes an easy upgrade they’re willing to adopt.

 

 

How to Turn Invoicing into a New Revenue Stream?

Invoicing can be offered to clients in different ways. Some include it for “free” as part of a complete package to lower acquisition costs and beat competitors. Most, however, choose to charge for it. The three most common models are:

Usage Based – Best for the user: they log in, issue as many invoices as needed, and pay only for what they use. But for you, it’s a very unpredictable revenue stream.

Subscription Based – The client pays a fixed monthly fee and gets unlimited access to invoicing. Ideal for companies with high invoicing volume, but can be expensive for smaller businesses.

Mixed Model (Subscription + Usage) – The client pays a small monthly fee to unlock the feature with some included benefits. Once they exceed a threshold, extra usage is charged separately. This is the most common setup and usually a win-win for both sides.

 

 

How To Choose the Invoicing Feature Provider?

It really depends on your goals and needs, but in most cases, the best approach is to go with an invoicing API. Before jumping in, it’s important to properly assess what your company requires—because not all APIs are the same. The most essential features to look for in an invoicing API are:

Global Invoicing Compliance – If your business operates in multiple countries, the API should support cross-border invoicing, localized formats, and provide room for future expansion.

Transparent and Fair Pricing – Invoicing APIs are still fairly new, and many providers overcharge. Look for a pricing structure that’s clear, fair, and scales with your usage.

Niche-Specific Features – Depending on your industry, you may need things like custom branding or crypto payment support.

Integration Support – A strong API will have well-documented, easy-to-follow integration guides and responsive support. A good API can be integrated in less than a week.

Proof of Work – Check for GDPR compliance, country certifications, case studies, and customer reviews to confirm reliability.

If you're a platform offering invoicing to clients, then two more features become absolutely necessary:

Multitenancy – This allows all your clients to use the same API, each with their own branding, data, and settings, while keeping everything secure and separate.

White-labelling – Enables you to brand and design the invoicing feature to match your platform. This creates the impression that the feature was built in-house, building trust and boosting client adoption.

 

 

 

Earn More and Pay Less with Space Invoices’ Invoicing API

Neobanks, Fintech and B2B SaaS platforms looking to grow revenue can upsell their clients with invoicing feature integrated straight into their platform like it was built-in house. With lower costs, you have the space for higher margins or more clients, as you can easily compete with other service providers in the market.

At Space Invoices, we've designed the API with key principles in mind. With our API, you will be able to:

Support and upsell your clients globally,

Become the one-stop shop for current and future clients,

Utilize a single API for current and future worldwide compliance;

Streamline processes to save time and reduce costs, while also minimizing manual errors,

Ensure that all documents are properly archived and reported to relevant authorities,

Achieve rapid integration, typically completed in less than a week.

 

For more information, consider connecting with us and speak to one of our experts.

We are here to assist.

 

Additional reading:

• 2030 Intra Community E-invoicing Mandatory EU ViDA
• 3 Best White-Label Invoicing APIs for B2B SaaS, Fintech, and Neobank Platforms
• Ask Your Developer: Key Insights for the Build vs Buy Debate in Invoicing API