For most B2B SaaS platforms, integrating an invoicing API is primarily aimed at creating upsell opportunities or enhancing the overall product offering. Incorporating a white-labeled invoicing feature is crucial, as it ensures the invoicing functionality appears as a seamless part of your platform.

Invoicing is a critical aspect of every business, and streamlining it can significantly reduce your workload. Integrating an invoicing feature offers numerous benefits, including cost reduction, faster payments, and the elimination of manual errors. However, for most B2B SaaS, Fintech, and Neobank platforms, the primary goal is to upsell clients or enhance their product or service. In this context, integrating a white-labeled invoicing API is an excellent choice. Given the limited options available, we have created a comprehensive guide on white-label invoicing APIs to help you identify the most suitable solution for your needs.

In this article, we will cover:

What is an Invoicing API

Why You Need a White-Label Invoicing API

What to Look for in a White-Label Invoicing API

3 Best White-Label Invoicing APIs for B2B SaaS, Fintech, and Neobank Platforms

How to Begin the Integration of a White-Label Invoicing API

Earn More and Pay Less with Space Invoices’ API

 

What is an Invoicing API

An invoicing API, or application programming interface, facilitates automatic communication between different software applications. Essentially, it allows you to access and manipulate data stored in another system. For instance, an invoicing API enables you to access the provider's data and integrate it into your dashboard, streamlining the entire invoicing process and ensuring compliance with all regulations directly from the invoicing API's server.

However, since programs can be written in different programming languages, this can create various challenges and limitations in how the API is used. That's why API providers offer in-depth documentation to simplify the integration process. It is even more beneficial if they provide chat or video call support to assist you further.

 

Why You Need

If you are integrating the invoicing feature for yourself, as the end user, there is no need for a white-label feature. While it might look better with your branding and customization, it is not a necessity.

White-labeling becomes essential when you are integrating an invoicing feature for your clients. Without white-labeling, your clients might realize that the feature is from a third party, potentially leading to distrust or a loss of confidence in your platform. By incorporating your branding, clients are more likely to adopt and use the feature, as they already trust the services you provide, making the integration process smoother and more cost-effective for them. We delve deeper into this topic in our blog Invoicing as a New Revenue Stream.

 

What to look for in a White-Labelled Invoicing API

As mentioned before, a white-labeled invoicing API is usually integrated with your clients in mind. That’s why you’re looking for:

International Tax and e-Invoicing Compliance: Maintaining a broad list of compliant countries is essential. It allows a company to utilize a single API for all its existing and prospective markets. The API provider is responsible for integrating these regulations, sometimes obtaining certification, and continually monitoring and updating them since regulations often change.

Developer-Focused Design: An API must be supported by comprehensive documentation and technical support. This commonly indicates how well the API is developed, the updates it receives, and the service and support provided by the company.

Integration Flexibility: Seamless integration with existing systems minimizes disruption. The best white-label software should easily sync with your current tools.

Multi-tenancy: This allows a company to utilize a single API for themselves and their clients to issue documents while keeping individual data secure and inaccessible to other users.

Auto-Onboarding: This feature allows your clients to sign up and start issuing documents themselves without the need for a separate call or entire onboarding process.

Scalability: As your business grows, your software should too. Look for solutions that can adapt to increasing demand and changing business needs.

Customization and Branding Options: While branding is covered with white-labeling, your clients also need the option to customize invoice colors, templates, and branding to maintain their brand identity.

 

3 Best White-Label API’s B2B SaaS, Fintech, and Neobank Platforms

This list is built exclusively from invoicing APIs we know well and is in randomized order. We included ourselves because we offer a white-label invoicing API, and it would be strange to believe we are not among the best. However, we placed ourselves last to allow you to explore other options as well.

Invoice Ninja Invoice API

Invoice Ninja is an invoicing software designed for small businesses, offering capabilities for invoicing, tracking expenses, and billable tasks. Primarily server-based, it allows you to start invoicing immediately by signing up, selecting a payment gateway, and creating invoices. They also provide self-hosted invoicing, though this involves a more complex process of gathering agreements, as it is not their main focus. Generally, they target companies or freelancers who are the end users of their invoicing services, streamlining branding customization and invoice issuance to help boost their money collection.

Key Features

Invoice Management: Automate the creation, updating, and deletion of invoices as well as set up recurring invoices for regular clients.

Client Management: Add new clients and manage their details, store multiple contacts per client and provide clients with a portal to view their invoices and make payments.

Payments: Integration with multiple payment gateways like PayPal, Stripe, and more; send automatic payment reminders to clients; accept and track partial payments on invoices.

Expense Tracking:

Reports:

Multi-Currency and Multi-Language Support:

Customizable Invoicing: Customize invoice templates to fit your branding with features like recurring invoicing, automated late-payment reminders, e-signatures, and detailed financial reports.

Niche Specification

Even though B2B SaaS, Fintech, and Neobank companies are not the primary target of Invoice Ninja, they still offer support for them, including integration into the dashboard. This allows you to upsell the invoicing feature to your clients, though it comes with a slightly more complicated rule set and somewhat less comprehensive support for these features. The primary targets are:

Freelancers

Small Business Owners

IT Experts, Developers, Web Designers

Media and Digital Marketers

Pricing:

Invoice Ninja offers transparent and very affordable pricing packages, including one that is free forever.

 

Monite Invoice API

Monite’s Invoicing API is highly specialized for neobanks, fintechs, and B2B SaaS platforms. It provides accounts receivable automation solutions that seamlessly integrate into these platforms. Monite enhances platforms with the ability to offer invoicing and financial automation functionalities to their clients. This API also facilitates the automation of payment reminders and reconciliation, and ensures full integration with accounting software, thereby streamlining financial operations on a large scale.

Key Specifications

Accounts Payable and Receivable: Monite focuses exclusively on enhancing its accounts payable and receivable solutions, integrating with over 40 different accounting systems. Additionally, Monite includes capabilities for embedding broader financial services, such as BNPL (Buy Now, Pay Later) options and detailed payment reconciliations.

Country Coverage: Monite supports more than 32 countries, with 14 of these countries receiving only specific support.

Developer-Focused Design: The API is supported by comprehensive documentation and technical support.

Automated Invoicing Capabilities: Monite provides automation features for issuing invoices, sending payment reminders, and reconciling payments.

Multi-tenancy: The API supports multiple organizations using a single system for their invoicing needs while keeping individual data secure and inaccessible to other users.

Customizability: Allows for the customization of invoices, including layout adjustments, the addition of branding elements like logos, and content modifications to meet business branding needs.

Niche Specification

Monite’s Invoicing API is highly specialized for neobanks, fintechs, and B2B SaaS platforms.

Pricing

Monite’s pricing strategy primarily revolves around a commitment fee with additional usage-based charges. The commitment spans a minimum of a few years, with a rising fee. While Monite's pricing is not publicly disclosed, industry standards suggest a base fee ranging between €2,000 and €10,000 per month, with additional costs for each additional organization and document.

 

Space Invoices Invoice API

Space Invoices API primarily caters to B2B SaaS companies, Fintech, and Neobanks, while also providing solutions for e-commerce and marketplaces. It offers compliance and automation of global (e-)invoicing, tax, and digital reporting, making it particularly beneficial for small and medium-sized enterprises. Platforms looking to enhance their product offerings with invoicing capabilities can achieve this in less than a week and at a very low cost. With lower costs, you have the space for higher margins or more clients, enabling you to easily compete with other service providers in the market.

Key Specifications

International Coverage: Space Invoices supports tax and invoicing compliance, as well as e-reporting, in over 65 countries. Additionally, Space Invoices offers a comprehensive guide for all currently and potentially supported countries, allowing clients to check compliance for each specific country, such as mandatory e-invoicing, real-time reporting, and more.

Developer-Focused Design: The API is supported by comprehensive documentation and technical support, allowing for integration in less than a week.

Automated Invoicing Capabilities: Features for automating the issuance of invoices, sending payment reminders, and reconciling payments.

Integration with Payment Systems: Seamless integration with various payment gateways, enabling businesses to embed payment links directly within their invoices.

Multi-tenancy: Invoicing API supports multiple organizations using a single system for their invoicing needs while keeping individual data secure and inaccessible to other users.

Customizability: Customization of invoices, including layout adjustments, the addition of branding elements like logos, and content modifications to meet business branding needs.

Compliance and Security: API emphasizes adherence to local tax laws and financial regulations, alongside prioritizing security measures to safeguard sensitive financial data.

Auto-Onboarding: After integration, your clients can self-onboard.

Niche Specification

Space Invoices API primarily caters to B2B SaaS companies, Fintech, and Neobanks, while also providing solutions for E-commerce and Marketplaces.

Pricing

Space Invoices' pricing focuses on saving you money and growing alongside your company. Pricing is transparent and primarily usage-based:

Commitment: Free for one organization with up to 10 invoices per month; after that, there is a base fee of €200 per month.

Usage-based Pricing: A charge of €5 applies for each additional organization issuing documents, which includes the creation and issuance of 200 free documents. Each additional document beyond this quota costs €0.05.

 

How to Begin the Integration of White-Label Invoicing API

If you are decided on integrating an API, there isn’t a one-size-fits-all process, as providers often have slightly different regulations. However, a general approach would be:

Conduct Your Own Research: Read through case studies, comparison pages, and evaluate the features your company needs against those provided by the API.

Review Documentation: Comprehensive documentation is usually a sign that the product is well-developed and receives constant updates.

Compare Pricing: Often, an API offers multiple features you don’t need, resulting in a higher price or requiring a long-term commitment before you have time to try out the API.

Research Integration: Some providers offer self-onboarding, allowing you to sign up and integrate without unnecessary calls and wasted time. Also, consider the integration timeline and costs, as this could save a lot of money.

Contact the Provider: Confirm the match between your needs and the invoicing API features, or further discuss the API's capabilities such as cryptocurrency invoicing or company policies regarding upselling, changes in pricing, etc.

After that, you should have enough information to make an informed decision, choose the right API, and start integrating.

 

Earn More and Pay Less with Space Invoices’ Invoicing API

With Space Invoices’ Invoicing API, platforms looking to enhance their product offerings with invoicing capabilities can achieve this in less than a week and at a very low cost. This allows for a quicker time to market, enabling faster client acquisition and revenue growth.

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

The invoicing feature is usually billed in one of two ways:

Subscription-Based Billing: Platforms may charge their clients a fixed monthly fee for using the invoicing feature.

Usage-Based Billing: Platforms may charge their clients a fee for each invoice issued.

Combination of Both: Platforms may set a monthly fee for a specific number of invoices, and then an additional fee for each invoice above that threshold.

For more information on using invoicing as a new revenue stream, read our comprehensive guide or contact us via live chat.

 

Additional reading:

• Ask Your Developer: Key Insights for the Build vs Buy Debate in Invoicing API
• Bosnia and Herzegovina Implements VAT on Non-Resident Digital Service Providers