Top 3 White-Label Invoicing APIs to Automate Payments for Platforms

For most B2B SaaS platforms, integrating an invoicing API is focused on creating upsell opportunities or improving the overall product offering. Adding a white-labeled invoicing feature is essential to ensure the invoicing functionality feels like an integral part of your platform.

Invoicing is essential for every business, and streamlining it can save time and reduce errors. For B2B SaaS, fintech, and neobank platforms, the main goal is often to upsell clients or enhance their services. In this case, integrating a white-labeled invoicing API is a smart choice. With limited options available, we've created a guide on white-label invoicing APIs to help you find the best solution for your needs.

In this article, we will cover:

  • What is an Invoicing API
  • Top 3 White-Label Invoicing APIs to Automate Payments for Platforms
  • Step-by-Step Guide to Integrating a White-Label Invoicing API
  • Maximize Revenue and Cut Costs with Space Invoices’ API
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    What is an Invoicing API?

    An invoicing API automates the creation, delivery, and management of invoices by seamlessly connecting different software platforms, helping businesses streamline their invoicing process and reduce manual errors.

    Top Reasons to Implement a White-Label Invoicing API for Your Business

    If you're integrating an invoicing feature for your own use, there's no need for white-labeling. While it may look better with your branding, it’s not essential.

    White-labeling is crucial when adding an invoicing feature for your clients. Without it, clients may notice the third-party provider, which can cause distrust or reduce confidence in your platform. By using your branding, clients are more likely to adopt the feature since they already trust your services. This makes the integration smoother and more cost-effective for them. Learn more in our blog Invoicing as a New Revenue Stream.

    Key Features to Consider When Choosing a White-Label Invoicing API

    A white-labeled invoicing API is typically designed with your clients in mind. Here's what you should look for:

  • International Tax and e-Invoicing Compliance Ensure the API covers a wide range of countries to maintain compliance. This lets you use one API for multiple markets. The provider handles the regulations, including updates and certification.
  • Developer-Focused Design Look for an API with detailed documentation and strong technical support. This reflects how well the API is built, maintained, and supported.
  • Integration Flexibility The API should integrate smoothly with your existing systems, minimizing disruptions and syncing easily with your tools.
  • Multi-tenancy This feature allows you and your clients to use the API while keeping data secure and separate from other users.
  • Auto-Onboarding Enables your clients to sign up and issue documents on their own without a lengthy onboarding process.
  • Scalability As your business grows, the API should scale to meet increased demand and evolving needs.
  • Customization and Branding Options Beyond white-labeling, your clients should be able to customize invoice colors, templates, and branding to match their identity.
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    Top 3 White-Label Invoicing APIs to Automate Payments for Platforms

    This list features invoicing APIs we know well, presented in random order. We've included ourselves because we offer a white-label invoicing API and believe we rank among the best. However, we've placed ourselves last to give you the chance to explore other options first.

    Invoice Ninja Invoice API

    Invoice Ninja is an invoicing platform designed for freelancers and small businesses, offering tools to create invoices, accept payments, track expenses, and manage billable tasks. It helps users streamline their workflow, get paid faster, and customize branding for a professional look.

    Key Features

  • Invoice Management: Automate invoice creation, updates, and deletions, and set up recurring invoices for regular clients.
  • Client Management: Add and manage client details, store multiple contacts per client, and offer a client portal for viewing invoices and making payments.
  • Payments: Integrate with multiple payment gateways like PayPal and Stripe. Send automatic payment reminders and track partial payments on invoices.
  • Expense Tracking:
  • Reports:
  • Multi-Currency and Multi-Language Support:
  • Customizable Invoicing: Tailor invoice templates to your brand 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 aren't Invoice Ninja's main focus, they still offer support, including integration into the dashboard. This allows you to upsell the invoicing feature to your clients, though the rules may be a bit more complex, and support for these features is slightly less comprehensive. Their primary users include:

  • Freelancers
  • Small Business Owners
  • IT Experts, Developers, and 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 designed specifically for neobanks, fintechs, and B2B SaaS platforms. It automates accounts receivable processes and integrates seamlessly with these platforms, allowing them to offer invoicing and financial automation services to their clients. Monite also automates payment reminders, payment reconciliation, and integrates with accounting software to streamline financial operations.

    Key Specifications

  • Accounts Payable and Receivable: Monite specializes in automating accounts payable and receivable, integrating with over 40 accounting systems. It also offers features like Buy Now, Pay Later (BNPL) and payment reconciliation.
  • Country Coverage: Supports over 32 countries, with specific support in 14 of them.
  • Developer-Focused Design: Comprehensive documentation and technical support for easy integration.
  • Automated Invoicing: Automates the process of issuing invoices, sending payment reminders, and reconciling payments.
  • Multi-tenancy: Allows multiple organizations to use the same system securely, keeping data separate and protected.
  • Customizability: Customizable invoice templates, including branding elements like logos and layout adjustments.
  • Niche Specification

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

    Pricing

    Monite’s pricing includes a commitment fee with usage-based charges. Pricing typically ranges from €2,000 to €10,000 per month, with additional costs for each organization and document. Pricing details are not publicly disclosed but follow industry standards.

     

    Space Invoices Invoice API

    Space Invoices API is designed for B2B SaaS companies, fintechs, and neobanks, but also supports e-commerce and marketplaces. It automates global e-invoicing, tax compliance, and digital reporting, making it a cost-effective solution for small and medium-sized businesses. Platforms can integrate invoicing capabilities in under a week and at a low cost, allowing for higher margins or more clients, making it easier to compete in the market.

    Key Specifications

  • International Coverage: Supports tax compliance, invoicing, and e-reporting in over 65 countries. Clients can check compliance for each country through a comprehensive guide.
  • Developer-Focused Design: Offers comprehensive documentation and technical support, enabling integration in less than a week.
  • Automated Invoicing: Automates issuing invoices, sending payment reminders, and reconciling payments.
  • Payment Integration: Seamlessly integrates with payment gateways, allowing businesses to embed payment links directly in their invoices.
  • Multi-tenancy: Supports multiple organizations using the same system, ensuring secure and separate data for each.
  • Customizability: Customizable invoice layouts, branding elements, and content to match your business needs.
  • Compliance and Security: Adheres to local tax laws and financial regulations, with strong security measures to protect financial data.
  • Auto-Onboarding: After integration, clients can self-onboard without needing additional support.
  • Niche Specification

    Space Invoices primarily serves B2B SaaS companies, fintechs, and neobanks, but also provides solutions for e-commerce and marketplaces.

    Pricing

    Space Invoices offers transparent, usage-based pricing designed to grow with your business:

  • Commitment: Free for one organization with up to 10 invoices per month. Afterward, a base fee of €200 per month applies.
  • Usage-Based Pricing: An additional €5 per organization is charged for issuing documents, including 200 free documents. Each additional document costs €0.05.
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    Step-by-Step Guide to Integrating a White-Label Invoicing API

    Integrating an API is not a one-size-fits-all process, as different providers have unique requirements. However, here’s a general approach to guide you:

  • Do Your Research: Explore case studies and comparison pages to match the features your business needs with what the API offers.
  • Review Documentation: Good documentation indicates a well-developed API that’s regularly updated.
  • Compare Pricing: Check for unnecessary features that might increase costs. Avoid long-term commitments until you've tested the API.
  • Check Integration Options: Some providers offer self-onboarding, saving time and avoiding unnecessary calls. Consider the integration timeline and any potential costs.
  • Contact the Provider: Reach out to confirm the API meets your needs or discuss advanced features like cryptocurrency invoicing or pricing policies.
  • Once you’ve done this, you’ll have the information needed to make an informed decision and begin the integration process.

     

    Maximize Revenue and Cut Costs

    With Space Invoices' Invoicing API, platforms can add invoicing capabilities in under a week at a very low cost. This quick integration allows for a faster time to market, helping you acquire clients and grow revenue more quickly.

    Neobanks, fintechs, and B2B SaaS platforms can increase revenue by upselling clients with an invoicing feature that feels built-in, thanks to the API. The low cost gives you flexibility for higher margins or the ability to serve more clients, making it easier to compete with other service providers.

    The invoicing feature can be billed in several ways:

  • Subscription-Based Billing: Charge a fixed monthly fee for using the invoicing feature.
  • Usage-Based Billing: Charge per invoice issued.
  • Combination: Set a monthly fee for a certain number of invoices, then charge for any additional invoices.
  • For more details on turning invoicing into a revenue stream, check out our guide or reach out via live chat.

     

    Additional reading:

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