- SPD Technology joins an exclusive list of the top 1000 global service providers in 2025
Planning to Build a Custom Billing Solution?
As a trusted billing software development company, SPD Technology delivers expert billing and invoicing software development services. We specialize in high-load, complex fintech applications, bringing deep technical expertise to every custom solution. Our track record of engineering billing engines for global market leaders proves our ability to deliver innovation, reliability, and sophisticated functionality.
- Proven expertise. Our experience is backed by collaborations with global industry leaders, including Poynt, Black Hawk Networks, PitchBook, and Pie Insurance.
- Industry specialization. We carefully tailor our solutions to diverse business domains in several key industries, including eCommerce, Fintech, LegalTech, and Insurance.
- Comprehensive coverage. Our approach covers a wide range of business needs, including customization, integration with existing systems, robust security, and regulatory compliance.
Global clientele. Serving major clients with annual revenue over $100M, our global presence spans the US, the UK, Israel, Mexico, and other countries.
Custom Billing Software Development Services
We deliver advanced custom solutions backed by scalable infrastructure to support complex billing requirements and future growth. Building billing software from scratch is complex, particularly in security and integration. However, the result is a custom invoicing software solution that addresses your unique business needs and streamlines even the most complicated workflows.
- Custom Billing Software Development
At SPD Technology, we focus on building custom software that precisely meets business needs. We create advanced custom solutions, supported by scalable infrastructure, to handle complex billing needs and future expansion. Whether you require subscription billing, usage-based billing, or recurring invoicing software, our skilled team can create a custom solution that supports various billing cycles and models, such as a merchant subscription management system for the Black Hawk Networks (BHN) payment processing company or merchant onboarding automation features for the Poynt open-commerce platform. We customize invoicing software to fit your specific workflows, offering improved efficiency, security, and capabilities like ERP integration that off-the-shelf solutions cannot match.
- Invoicing Portal Development
SPD Technology focuses on custom software designed to meet your specific business needs, especially in building billing and invoicing systems. These can be standalone or integrated features within full-cycle payment processing solutions. You can perform batch invoicing and create professional invoices with customizable templates and branding options. We provide advanced solutions supported by scalable infrastructure to handle complex billing needs and future expansion. Our systems feature enhanced security, smooth integration, and operational efficiency that off-the-shelf options can’t match. Our team develops tailor-made solutions for any model. We have successfully delivered high-value systems, such as a subscription subsystem for BHN, invoice automation for Poynt, and custom notary billing platforms.
- Enterprise-Level Billing Systems Development
As a partner serving medium-sized to globally represented businesses, we are keen to create enterprise-level billing solutions. We integrate with accounting software and payment gateways, enabling you to manage billing workflows, automate invoice generation, and streamline financial operations across your organization. Our teams have a deep understanding of enterprise-specific scalability demands, the vast number of necessary integrations (ERP, CRM), complex user permissions and roles, and the high level of flexibility required for reporting and analytics. Custom billing software can provide thorough reports and analytics on revenue and online payment transactions. The underlying software architecture is engineered to support rapid scaling, maintaining performance stability even as user loads and data volumes surge.
- Subscription (Recurring) Billing App Solutions
Automated billing software development is another competency we have. Subscription management and billing functionality is a part of the aggregated merchant portal (AMP) we created for Black Hawk Networks. Our solutions seamlessly integrate with accounting tools via robust APIs, ensuring accurate synchronization of financial data. Our software supports recurring invoices, handles overdue payments and failed transactions, and provides payment reminders and access to the customer portal for seamless management of subscription plans. Our engineers develop platforms that automate complex lifecycles, handling proration, renewals, and failed transactions behind the scenes. We also integrate with major payment gateways to provide flexible online payment options and dedicated customer portals.
- Billing & Invoicing System Integration
As part of our automated billing software development service, we can seamlessly integrate a newly created system with your accounting, inventory management, ERP, or CRM system to ensure uninterrupted customer data sync, accurate invoice generation, and effective billing automation. To achieve this, we identify suitable APIs, map data fields between billing software and systems, customize the billing software for specific data formats, and configure integration for real-time synchronization. When Sales and Finance share data, billing software boosts satisfaction by streamlining invoicing and eliminating disputes over manual entry. We also ensure the secure management and safeguarding of customer details, maintain compliance with security standards, and protect sensitive financial information. Integrating billing software with other systems helps prevent integration issues and ensures smooth business operations.
- Legacy Billing System Modernization
In addition to other billing and payment software development services we provide, our team can transform a legacy billing platform into a streamlined and revenue-driving solution with a modern user interface. The modernisation of an insurance payment processing system allowed Pie Insurance, one of our InsurTech clients, to increase its ACH payment users threefold. As part of this project, we added more robust custom invoicing software features and a wider range of online payment options. We upgrade payment processing capabilities, support different payment methods, including digital wallets, and automate billing workflows to improve efficiency. We also design software architecture to handle increased user loads and data volumes as your business grows. Ongoing support includes bug fixes, security patches, updates, and user training after deployment.
Our Time-Tested Approach to Billing Software Development
At SPD Technology, we are proud to earn our clients’ trust through our compliance-first billing software development, the simultaneous use of multiple data security measures, and our deep understanding of the specifics of billing fraud and how to combat it.
- Data Security
Our billing and payment software development team is committed to delivering a secure financial ecosystem for your business. We focus on safeguarding sensitive financial data and integrating compliance and security functionalities into every solution. With this goal in mind, we leverage such data security measures as encryption, tokenization, and multi-factor authentication, regular security audits and data backups, secure coding, secure APIs, and password policies. We also strictly implement granular access control and prepare response plan protocols.
- Regulatory Compliance
Ensuring regulatory compliance is integral to our approach to developing customized billing software. In addition to following the payment processing software compliance regulations, such as PCI DSS, SOC 2, and PCD, we ensure strict compliance with financial industry requirements, including, but not limited to, IFRS, GAAP, and ASC 606. For healthcare billing software, we also adhere to HIPAA compliance to protect sensitive patient data and meet industry-specific regulatory standards. We also uphold tax compliance by supporting different regional tax frameworks and enabling real-time tax reporting within our billing systems.
- Payment Fraud Protection
Our solid technical expertise, gained across diverse projects and domains, enables us to develop and embed payment fraud detection features into our billing software solutions. To protect your billing system from fraud-related risks, we can embed secured authentication and authorization algorithms, enable device fingerprinting and customizable payment thresholds, plus leverage machine learning expertise to continuously analyze and adapt to emerging fraud patterns.

John Gabbert
Founder and CEO PitchBook Data
Customers are king at PitchBook and SPD Technology shares in this mission. For the last 13 years, SPD Technology has helped us scale product development and continuously deliver the product functionality our clients need to make smarter decisions.
Being a Leading Software Product Development Company
Industry Recognition
Success Stories
with Global Impact
SPD Technology designs and develops transformative software solutions that drive innovation, new revenue streams, and market leadership.
Our Clients are Happy
To share their experiences

Alex Samano
Co-Founder & CEO, Mogami App
SPD Technology has done a great job of maintaining the lifeblood of their codes. They’re transparent with pricing models and deliver within budget. Their dedicated teams act as an extension of the partner’s company. Responsibility and a commitment long-term partnership are two hallmarks of their work.

Fabrice Forget
Chief Product Officer, PitchBook
We feel very lucky to have found SPD Technology as our partner. Over the last 10 years, they have totally surpassed our expectations, and day after day we have received incredible value from the team. Here is the secret sauce, just put together your best ideas in your requirements and there is nothing they can’t do!

John Gabbert
Founder and CEO PitchBook Data
Customers are king at PitchBook and SPD Technology shares in this mission. For the last 13 years, SPD Technology has helped us scale product development and continuously deliver the product functionality our clients need to make smarter decisions.

Prasad Sridhar
Senior Engineering Manager E-comerce Solutions Company
SPD Technology’s work has been praised by the client for their consistency and high quality. Their communicative, responsive, and flexible project management ensures a positive collaboration. Ultimately, their professionalism and forward-thinking are impressive.

Shariq Ahmad
Head of Technology, Morningstar, Inc
All of their developers and technology staff are highly talented and very professional. Working with SPD felt like we were working with internal team. They are always accessible any time of the day and very flexible in providing support to our users who are globally distreibuted.
Our Clients are Happy
To share their experiences
Billing & Invoicing Software Development Challenges We Handle
Equipped with diverse fintech expertise, we handle development challenges with foresight. Identifying key features and functionalities is the first step in the custom billing software development process. We move on to detailed planning and implementation, ensuring the software can handle increased transaction volumes and comply with international tax regulations. Finally, testing and quality assurance are critical steps in the custom billing software development process to ensure functionality and security before deployment.
- Industry-Specific Customization
At SPD Technology, we are proud of our extensive experience developing industry-specific billing solutions. The billing system we recently developed includes specific functionalities tailored to the insurance sector, including, but not limited to, processing billing installments for all insurance policies the company has, calculating equity, triggering non-payment cancellations, and generating reports by customer groups. Our solutions also support time, billable hours, and expense tracking to enable detailed financial management and accurate invoicing via customizable invoice templates. For service-based businesses, the ability to track billable hours and streamline the invoicing process is crucial for accurate financial reporting and efficient project billing.
- Reporting and Analytics Gaps
You can’t fix what you don’t measure. Robust financial reporting and analytics in billing software should give you instant visibility into the lifeblood of your business: monthly recurring revenue (MRR) and cash flow. To achieve this goal, we collaborate closely with stakeholders to elicit precise requirements and, as a result, develop efficient reporting functionality that enables informed decision-making. We create customizable dashboards that go deeper, tracking key financial metrics like churn rate and accounts receivable turnover ratio. A billing app helps you manage payment history, analyze patterns, and ensure real-time financial visibility, billing accuracy, and compliance.
- Multi-Region Tax Calculation Challenges
In addition to other technical challenges our company can handle, we have experience addressing the diverse tax structures across different countries. A notable example is our collaboration with a real estate company, in which we seamlessly integrated a comprehensive tax calculator into the app’s functionality, enabling dynamic recalculation across multiple parameters. Accurate invoice data and real-time payment status tracking are critical for ensuring compliance across multiple regions. Supporting multiple payment methods, including credit cards, bank transfers, and digital wallets, further enhances transaction security and provides customers and SaaS buyers with convenient options and flexibility at checkout.
- Integration into a Broader Payment Ecosystem
To address the challenge of poor integration between a newly created platform and existing solutions, our approach is rooted in strategic planning. Before starting billing software development, we comprehensively analyze your existing software ecosystem, identify potential integration points, and ensure seamless alignment of the new billing system with CRM, ERP, POS, and accounting software. This integration improves financial operations, supports finance teams by reducing manual reconciliations, and minimizes double data entry. Streamlining billing operations, including invoice generation, recurring billing, and payment management, ensures efficient workflows and improved cash flow management.
Trusted Globally by Innovation-Driving Companies
From Fintech industry stalwarts to industry-leading eCommerce providers, we ensure the comprehensive alignment between emerging technologies and established business processes.
- An American financial services firm that provides investment research and investment management services
- Financial data and software company with offices in London, New York, San Francisco, and Seattle.
- All-in-one omni commerce payment solution with contactless, fast, secure, and safe payment processing
- One of the most recognizable landmarks, a company that specializes in innovative travel and hospitality services
- SaaS XSPN – Next Generation Application & Cloud Security Posture Management
- A leading tech-enabled insurance company that provides workers’ comp coverage to small businesses
Industry-Specific Billing Solutions Tailored to Suit Your Business
We have been helping companies from different niches optimize their payment management process with sophisticated billing solutions for more than two decades. Modern billing software solutions now offer advanced, customizable, and secure features to address the evolving needs of businesses across industries.
- Insurance Billing Software
As one of the leading industries we serve, we deeply understand the specific requirements insurance companies have for their billing systems. The custom billing software we recently engineered for Pie Insurance now serves as a centralized hub for accurate recording, tracking, and reporting of premium billing, payment plans, and received payments. The systems we build also support electronic invoicing for real-time tax validation and compliance with local tax authorities.
- eCommerce Billing Software
Our work with the omni-commerce platform Poynt exemplifies our expertise in eCommerce billing solution development. We engineered a sophisticated infrastructure supporting billing, invoicing, and recurring payments across multiple currencies. The solution supports various pricing models (flat-rate, usage-based) and automates subscription management. Our billing software integrates with eCommerce platforms to streamline checkout and offer real-time cash flow visibility for better forecasting and compliance.
- Legal Billing Software
With a proven track record in delivering custom billing software solutions, our company stands as a trusted partner for legal businesses. Our custom legal billing solutions handle complex jurisdictional requirements, exemplified by a notary building app we scaled to 20 US states, including taxation-specific requirements. We integrate seamless billing, invoicing, and tax calculation directly into your workflow. Beyond secure CRM synchronization and data compliance, our engineers implement AI-driven tools to automate payment reminders, significantly reducing churn and recovering revenue.
Custom Billing Software Development Services You Can Rely On
From aspiring startups to Fortune 500 companies, we work with companies of all sizes and across diverse industries, proud of the collaborations that evolve into long-term strategic partnerships. Our focus on customer experience ensures that our integrated, efficient, and user-friendly billing systems enhance satisfaction and retention by streamlining the customer journey.
- Unparalleled Quality
During almost two decades, we have successfully built, delivered, and scaled more than 120 tech projects. The strategic blend of comprehensive business analysis, extensive software development expertise, and thorough testing enables us to provide scalable, reliable, and high-performance solutions. For billing software development, we focus on securing payment data and maintaining accurate payment records to ensure quality, compliance, and trust. We emphasize securely capturing, updating, and managing payment details within billing and subscription systems to boost payment success rates and enhance customer experience.
- Transparent Communication
Our clear and concise communication ensures you have a comprehensive understanding of project progress, challenges, and milestones. We achieve this by establishing a structured communication plan that includes daily standups, weekly status reports, and immediate access to team leads via tools. This continuous feedback loop is critical when building complex billing logic, ensuring that requirements are understood and aligned with your business goals. Ongoing support and transparent reporting build a true partnership, maximizing customer satisfaction throughout the entire project lifecycle.
- Mature Project Management
Our project management methodology encompasses thorough planning, systematic execution, and consistent monitoring, enabling us to adapt swiftly to changing requirements. We rely on proven frameworks like Agile to manage the complexity of financial software and proactively handle risks and dependencies. We prioritize clear documentation, ensuring that project objectives, timelines, and deliverables are well-defined for all team members. This disciplined approach ensures that intricate billing workflows and third-party integrations are delivered on time, within scope, and ready for mission-critical operations.
- Predictable Costs
We offer transparent pricing models tailored to your business requirements, giving you a clear understanding of the investment required. Our rigorous discovery phase allows our architects to conduct deep technical assessments, minimizing the risk of scope creep often associated with custom billing development. Whether you choose a fixed-price or time & materials model, we provide accurate project estimates and detailed breakdowns. This financial discipline eliminates hidden fees, allowing you to plan your budget with confidence and secure a clear return on investment.

Alex Samano
Co-Founder & CEO, Mogami App
SPD Technology has done a great job of maintaining the lifeblood of their codes. They’re transparent with pricing models and deliver within budget. Their dedicated teams act as an extension of the partner’s company. Responsibility and a commitment long-term partnership are two hallmarks of their work.
Certified
By Independent Organizations
Engagement Models
That address any requirements
- Team Extension (Staff Augmentation)
Team extension is often the beginning of a lot more meaningful business relationships.
As we are aware of this, we provide Team Extension services to quickly extend your in-house team with one or more experts (usually, 1-3 persons) in order to beef it up or fill an expertise gap
Managed Team (Dedicated Team)The Managed Team client engagement model allows you to expand your in-house team in a more significant way than under Team Extension: we hand-pick several experts in accordance with your requirements to create a self-managed development team that is run by one of our seasoned Project Managers
Full-Cycle, Project-Based OutsourcingUnder Project-Based Outsourcing, our team assumes full responsibility for implementing the entirety of your project: we provide all the various experts required during the Discovery/Business Analysis, Development, QA & Testing, and, possibly, Support & Maintenance phases
FAQ
Answering common questions about billing software development.
What does billing software do?
Billing software automates the invoicing process and tracks the services or products sold. It generates professional invoices, calculates taxes, manages recurring subscriptions, and tracks payment status. Advanced systems also handle dunning (failed payments), revenue reporting, and integration with accounting tools. Billing software can be customized to include things like automated reminders, multi-currency support, analytics dashboards, user access controls, and integration with various business systems, making it a comprehensive solution tailored to your needs.
How does online billing work?
Online billing digitizes the payment cycle. The system emails a secure invoice link to the customer. When they click to pay via card or transfer, a payment gateway processes the transaction instantly. Automation and integrated email platforms enable faster invoice delivery and streamline workflows, significantly reducing processing time. The software automatically records revenue and sends a receipt, removing manual entry.
How does billing software work?
It aggregates data from sales or usage logs, applies pricing rules (discounts, taxes), and generates an invoice. The system sends this to the client and listens for payment confirmation from a gateway. Once paid, it automatically updates records, reconciles the ledger, and syncs with your ERP or CRM.
How to create billing software?
Building custom billing software starts with defining your pricing models (subscription, usage-based). You then design a secure architecture compliant with PCI DSS standards. Key development steps include building the invoice generation engine, integrating payment gateways, and setting up APIs to sync data with existing business tools. To ensure a strong foundation for success, assemble a team of engineers with relevant billing software development experience.
How much does it cost to develop custom billing software?
Costs typically range from $50,000 to $200,000+, depending on complexity. A basic MVP with essential invoicing functionality is on the lower end, while enterprise systems with custom compliance logic, diverse payment gateways, and deep CRM integrations require a higher investment. Building a billing app from scratch requires deep technical resources and long development cycles. Product complexity and many factors, such as requirements, integrations, and tech stack, impact the overall cost and timeline of custom billing software development.
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