Custom accounts payable software development
Appfront builds custom accounts payable software: from receiving and recognising supplier invoices with OCR, through three-way matching against purchase orders and goods receipts and an approval workflow, to SEPA payment batches, supplier management and a complete audit trail. Integrated with your accounting system or ERP and configured to your authorisation rules, payment terms and segregation of duties. For finance departments, shared service centres and organisations that need to process high volumes of supplier invoices quickly and in a controlled way.
What is accounts payable software?
Accounts payable software supports the entire process surrounding incoming supplier invoices. From receiving and recognising an invoice, through checking it against the purchase order and goods receipt, to approval by the right budget holder, and finally preparing payment batches and posting to the ledger. Everything serves one purpose: processing supplier invoices quickly, accurately and in a controlled manner, and paying on time.
Off-the-shelf packages often force your way of working into a fixed mould. Accounts payable processes, however, differ greatly between organisations: in authorisation hierarchies, cost centre structures, the number of entities, and the way purchasing, receiving and payment are arranged. Custom software fits your process rather than the other way round, and can grow along with your organisation or administration. This prevents shadow administrations in loose spreadsheets and email folders, and keeps the invoice record complete and traceable.
Because this involves payment transactions, segregation of duties, internal control and a watertight audit trail are central to everything we build. Read more about our broader approach to custom software and about software for the financial sector.
One record per invoice
Source document, extracted data, purchase order, goods receipt, approvals and payment in one coherent record. Your accounts payable administration works from a single place and stays in control, without re-keying data from scattered email folders or systems.
3-way match as a workflow
The supplier invoice, purchase order and goods receipt are automatically compared on quantity, price and supplier. What matches largely flows through automatically; discrepancies go to an exceptions workflow for review. This helps you avoid duplicate or incorrect payments.
Segregation of duties and audit trail
Who enters, who approves and who pays are kept separate through role-based authorisation. Every approval, change and access is logged. This supports your internal controls and makes the annual audit simpler and traceable.
How we build your accounts payable software
We work step by step and involve your accounts payable team, controllers and information security specialists early on. From a thorough review of your invoice flows, authorisation matrices and integrations through to go-live and ongoing management, every step is aimed at software your team understands, trusts and can demonstrably use securely.
We map out your invoice flow: how invoices arrive, how purchasing and goods receipt are organised, which authorisation matrices and payment terms apply, and which integrations are needed. Together we decide which matching rules and exceptions matter most.
We design the architecture, the invoice and supplier model, and the authorisation model with segregation of duties as a starting point, along with the approach to invoice recognition, matching tolerances, payment batches, logging and integrations.
We build in short iterations with automated tests, structured logging and monitoring. You see working versions along the way and help steer priorities and how well it fits your administrative practice.
Controlled go-live with data validation and a safety net, followed by ongoing management, monitoring and further development as your organisation, supplier base or administration changes.
What accounts payable software actually does
We tailor each application specifically to your process, authorisation rules and administration. Below are the features we most often deliver for finance departments and organisations with high volumes of purchase invoices.
Invoice intake & OCR
Incoming invoices arrive by email, scan or as structured e-invoices. OCR reads header details and invoice lines, and we process e-invoices in UBL and Peppol directly. Recognised data is validated, so manual re-keying is kept to a minimum.
3-way match
Each invoice is automatically compared with the purchase order and the recorded goods receipt on quantity, price and supplier. Within your tolerances the match proceeds automatically; deviations go to an exceptions workflow with a clear reason and the right handler.
Approval workflow
Invoices are routed to the right approver based on amount, cost centre or supplier, with deadline monitoring and mobile approval. Segregation of duties ensures that entry, approval and payment are carried out by different roles, so decision-making remains traceable.
Payment batches & SEPA
Payable invoices are grouped into payment batches, taking payment terms and any early payment discounts into account, and exported as a SEPA payment file or sent via a bank integration. Releasing a batch requires the right authorisation and is fully recorded.
Supplier management
A single, up-to-date supplier file with payment terms, bank account numbers, contact details and history. Changes to bank details are logged and can be placed under dual control, as protection against invoice fraud and phantom suppliers.
Case file, audit trail & reporting
Each invoice keeps the source document, approvals and payment together in a traceable case file. Management information on open items, processing times and payment terms gives the controller grip, while the audit trail supports internal control and the external audit.
Who we build accounts payable software for
Accounts payable is handled by many different organisations, each with its own invoice volume and complexity. For each of them we build software that fits their process, their authorisation rules and their integrations with their accounting systems.
Finance and accounts payable departments
Finance departments that process purchase invoices and approve them for payment every day. The software speeds up processing, reduces errors and keeps the accounts payable balance up to date, with clear management information for controllers. See also our custom software.
Shared service centres
Central administration offices that handle accounts payable for multiple entities or branches. They need strict separation per entity, unambiguous authorisation schemes and consolidated reporting across all invoice flows.
Organisations with high volumes of purchase invoices
Businesses with high purchase volumes, such as wholesale, retail, manufacturing and construction, where large numbers of supplier invoices and purchase orders come together. Automated matching and exception handling are essential here to keep volumes manageable.
Financial services providers
Accountancy and bookkeeping firms that process accounts payable for their clients and set strict requirements for segregation of duties and auditability. Read more on our page about software for the financial sector.
Test your idea first: a working prototype in 1 day
With OneDayBuild, we turn your idea into something tangible in one day for €1,150, so you can see whether further development is worth the investment. Decide to go ahead with the full build? Then we credit the full cost.
Explore OneDayBuild →Technology and integrations
We build with a modern, maintainable web stack and integrate with your accounting system, ERP and bank where needed. For accounts payable, the most relevant are: invoice recognition with OCR, structured e-invoices via UBL and Peppol, and exchanging suppliers, general ledger, cost centres and purchase orders with your accounting system. We prepare payments as SEPA payment files or via a bank integration. We align every integration with your administrative processes so that the general ledger and the accounts payable balance stay in step. See also our commission software if commissions and settlements are part of your financial flows.
If you want to send and receive orders and invoices in UBL to and from your trading partners and your own system, take a look at our page on a UBL integration.
If you want to receive e-invoices in the Dutch standard and import them without retyping, see our page on a NLCIUS integration.
If you use Whitevision to read invoices and the data needs to land in your own system, see our page on a Whitevision integration.
For the accounts receivable side, if you finance your invoices through factoring, there is our factoring administration software.
Why choose Appfront for your accounts payable software?
Appfront builds custom software for financial processes and always begins with a thorough analysis of your invoice flows, authorisation structures and administration. Accounts payable software must not only be technically sound, but also fit the internal controls and segregation of duties within which your finance team operates.
We build segregation of duties and a complete audit trail into the architecture from the outset, and write clear documentation so that your own team, or a future supplier, can understand and manage the software. No black box, but transparent code and clear agreements on authorisation, logging, monitoring and management.
You work with a fixed point of contact who understands both the technology and the practice of accounts payable administration. This keeps communication short, prevents misunderstandings and speeds up decisions when choices need to be made during the build.
See also our wider services: custom software, software for the financial sector, commission software and, for the accounts receivable side, debt collection software. Have questions? Get in touch with us.
- Custom software for financial processes
- Segregation of duties and internal control as a starting point
- Experienced with OCR, UBL, Peppol and SEPA
- Integrations with accounting, ERP and bank
- 3-way match with configurable tolerances and exceptions
- Role-based authorisation and comprehensive audit logging
- Protection against invoice fraud through four-eyes controls
- Clear documentation your team can read and manage
- A fixed point of contact, no account managers passed around
- Ongoing management and further development as your administration changes
Security and internal control in accounts payable software
Accounts payable touches directly on payment flows, so internal control and data protection are central. We set up role-based authorisation so that the same person cannot both change a supplier, approve an invoice and release the payment. Changes to bank account numbers and supplier details are logged and can be placed under a four-eyes check, as protection against invoice fraud. Every view, change and approval is logged, so it is always traceable who did what.
We build in line with the GDPR and common security standards, with encryption in transit and at rest, separation of data between entities and retention periods that match your tax and administrative obligations. The complete audit trail supports your internal control and the annual audit by your accountant. We document data flows and authorisations so you can demonstrate that you are in control.
Read more about our security approach: information security policy and vulnerability disclosure policy. Discuss your situation without obligation via our contact form.
- GDPR-compliant data processing and data minimisation
- Segregation of duties between entering, approving and paying
- Four-eyes check on bank account and supplier changes
- Encryption in transit (TLS 1.2+) and at rest
- Role-based access and least-privilege principles
- Separation of data between entities and clients
- Complete audit logging of views, changes and approvals
- Retention periods aligned with your administrative obligations
Frequently asked questions about accounts payable software
Answers to the questions we are asked most often about custom accounts payable software.
Accounts payable software supports the entire process around purchase invoices: receiving and recognising incoming invoices, checking them against the purchase order and goods receipt, routing them for approval through a workflow, preparing them for payment in batches via SEPA, and posting them to your accounting system or ERP. Custom software lets you set up this process around your own authorisation rules, payment terms and organisational structure, rather than adapting your way of working to a standard package. The aim is fast, controllable and low-error processing of supplier invoices.
A three-way match is the check in which a purchase invoice is automatically compared with the corresponding purchase order and the recorded receipt of goods or services. If quantity, price and supplier match, the invoice can largely be processed automatically. If anything deviates, the invoice goes to an exceptions workflow for manual review. This prevents you from paying too much, paying twice or paying for items not delivered, and it makes processing faster and easier to control. We configure the matching rules and tolerances to your own purchasing and approval policy.
Yes. In practice, incoming invoices arrive in many forms: as PDFs by email, as paper that is scanned, or as structured e-invoices. We build invoice recognition with OCR that reads header details and line items, and we process structured e-invoices directly using standards such as UBL and Peppol. Recognised data is validated and, where necessary, presented to an employee for review. This reduces manual re-keying and keeps the source documents on file.
We build custom software. Accounts payable processes differ greatly between organisations: in authorisation schemes, cost centre structures, payment terms, the number of entities and the way purchasing and goods receipt are arranged. Custom software fits your actual process and can grow with you as your organisation or administration changes. After an intake meeting, we agree together which functionality matters most and in what order to develop it, without promising a fixed timeline or price that we cannot yet substantiate.
Yes. Accounts payable software rarely works in isolation. We integrate via API or file exchange with your accounting or ERP package to synchronise suppliers, general ledger accounts, cost centres, purchase orders and the posting of approved invoices. Payments are prepared as SEPA payment files or through an integration with your bank. We tailor the direction and frequency of each integration to your administrative processes, so your general ledger and accounts payable balances stay aligned.
Approved invoices pass through a workflow that determines the right approver based on amount, cost centre or supplier, with segregation of duties between who enters, approves and pays. Approval can also be done on mobile. Payable invoices are then grouped into payment batches with attention to payment terms and any early-payment discounts, and exported as a SEPA file or through a bank integration. Every step is recorded in an audit trail, so it is always traceable who approved and paid what.
Segregation of duties is essential in payment processes. We set up role-based authorisation so that the same person cannot create or change a supplier, approve an invoice and release the payment. Changes to supplier details and bank account numbers are logged and can be placed under a four-eyes check, as protection against fraud. A complete audit trail of access, changes and approvals supports your internal controls and the annual audit.
This page is about accounts payable: your incoming supplier invoices and outgoing payments. The other side of the ledger, namely outstanding receivables, reminders, demand letters and the collection process for your own customers, falls under accounts receivable. For that we build separate custom software. See our page on building collection software for this. Many organisations have both sides connected, so that accounts payable and accounts receivable together give a complete financial picture.
Ready to build your accounts payable software?
Tell us how your accounts payable process is set up and where you run into problems, from invoice receipt and matching through to approval, payment batches and integrations. We are happy to think along about process, segregation of duties and internal controls. In a no-obligation first conversation, you will get a clear picture of the possibilities for custom software that suits your finance team.