B2B payment processing · engineering partner
B2B payment processing software,
engineered for corporates, approvals and cut-offs.
TrustChange builds B2B payment processing software for EU PSPs, EMIs, neobanks and corporate platforms. We engineer the corporate portal, the approval workflow, the router across SEPA / wire / open-banking / card rails, invoice and PO matching, the ledger and the reporting as bespoke code under your brand — not a SaaS licence with a per-transaction fee. Corporate users, treasury and ops work from one canonical record.
- EU-based engineers
- PSD2-aware flows
- PCI DSS scope kept small
- AML & sanctions in code
- GDPR-aware storage
What "B2B" means here
B2B versus B2C payment processing — where the shapes actually differ
Most searches for B2B payment processing software surface consumer-checkout platforms with a light "business account" mode on top. That is not the same product. TrustChange shapes the corporate schema, the approval chain and the reporting layer against the reality of a legal-entity buyer, so B2C assumptions do not leak into month-end.
Deciding whether to build, wrap or replace an incumbent? Start with CTO advisory. The wider gateway view sits on payment gateway engineering. Related angles: online payment processing software and back-office payment processing software.
| Dimension | B2C | B2B |
|---|---|---|
| Buyer identity | A single consumer with a card or wallet | A legal entity with beneficial owners, users and delegated authority |
| Amount profile | Many small tickets, real-time authorisation | Fewer, larger tickets — often batched to cut-off |
| Approvals | SCA on the consumer device | Multi-step approval chains, four-eyes on money-moving actions |
| Reconciliation | Acquirer file per day | Bank statement + PO / invoice matching, sometimes 3-way |
| Onboarding | KYC on the individual | KYB with UBO, adverse media and re-verification cycles |
| Reporting | Merchant statement | Corporate statement + GL export + ERP-shaped bundle |
Product surface
Three surfaces in every B2B payment processing software engagement
A B2B platform is not one app. It is the corporate portal, the internal ops and treasury console, and the APIs and ERP adapters your customers drive payments from. We ship all three as one product, on one architecture, with one team accountable end to end.
-
01
Corporate portal
The customer-facing product for business users: multi-user accounts, role-based access, initiator/approver/reviewer workflows, invoice upload, bulk payouts and statement export.
- Multi-user accounts
- Initiator / approver roles
- Bulk payout upload
-
02
Ops & treasury console
The internal console your ops, treasury and risk team runs the platform from — corporate onboarding, credit limits, settlement, exceptions and reviewer exports.
- Corporate onboarding
- Credit & limit management
- Aged queues with SLAs
-
03
APIs, ERP & PO adapters
Server APIs, ERP adapters and PO/invoice ingestion so corporates can drive payments from their finance stack — signed events into your ledger, no PII in the wrong place.
- Signed REST + webhooks
- ERP adapters (NetSuite, SAP, Xero)
- PO / invoice ingest
Stack
What sits behind bespoke B2B payment processing software
Eight layers, one system. Every layer names an owner, a control and a piece of audit evidence — nothing is left implied under the "B2B" label.
Delivery patterns and evidence: how we deliver. Platform view: fintech infrastructure. Adjacent builds: payment ledger & reconciliation development, automated payment processing software and AML compliance for payment platforms.
| Layer | What we build |
|---|---|
| Corporate model | Typed corporate records with beneficial owners, users, roles, credit lines, spend limits and payout rules One shape per corporate type, versioned in your repository. |
| Approval workflow | Initiator / approver / reviewer chains with thresholds, four-eyes gates and delegated authority Every approval stores who / what / why / when, retained per your policy. |
| Payment router | SEPA, SEPA Instant, wire, card, open-banking and stablecoin rails with batching and cut-off management Bulk files and single payments run through the same router without a code fork. |
| Invoicing & PO match | Invoice and PO ingest, 2- and 3-way matching against ledger movements with tolerance rules Matched payments post automatically; unmatched open cases with evidence attached. |
| Ledger & reconciliation | Double-entry ledger with idempotent postings, daily reconciliation and break workflow Finance, ops and the auditor read the same source of truth. |
| Compliance controls | KYB, UBO, sanctions and PEP screening, transaction monitoring, Travel Rule on any crypto legs Rules run inside the flow; every decision writes to the audit log. |
| Reporting & exports | Corporate statements, close pack, GL exports, ERP-shaped bundles and auditor exports Regulator-shaped exports out of the same store as corporate reports. |
| Runtime & delivery | EU-hosted, CI/CD pipelines, observability, 24/7 on-call cover Your identity provider, your key custody, your data regions. |
Payment path
From initiate to matched, reconciled evidence
Every B2B payment goes through the same gates before funds move. Speed comes from tuning the approval and screening chain, not from skipping a step or trusting a stale approver stamp.
- 01
Initiate
Corporate portal / API
A user or the corporate's ERP submits a payment or a bulk file; the request enters the approval chain.
- 02
Approve
Under policy
Approvers act under threshold rules; four-eyes and delegated-authority gates apply above defined limits.
- 03
Screening
Sub-second
Sanctions, PEP and beneficiary screening run before release; a bulk file screens per-line, with mixed-verdict handling.
- 04
Route & release
Cut-off bound
The router picks the rail, batches to cut-off and releases; single payments go real-time where the rail supports it.
- 05
Ledger
Immediate
A double-entry write posts the movement with source id, rule version and operator id where applicable.
- 06
Match & report
T+0 to T+1
Reconciliation matches to bank statements and PO/invoice records; close pack and ERP-shaped bundles publish daily.
Delivery
How we deliver B2B payment processing software
Five steps, in this order. Regulated B2B work runs inside the product backlog — no separate compliance phase bolted on before launch, no big-bang release of an untested approval engine.
- 01
Scoping
Weeks 1–2
We map buyer segments, rails, ERP mix, approval expectations, licence context and reporting shapes. Output: a scope, a control map and a costed plan.
- 02
Architecture
Weeks 3–4
Corporate schema, approval chain, router topology, ledger schema and export shapes written down first. Regulatory constraints shape the design.
- 03
Build
Two-week sprints
Portal, admin, router, approvals, matching and reporting ship in slices. Each merge runs tests, static checks and a dependency scan.
- 04
Hardening
Before cut-over
Replay against historical bulk files, load work, failure drills and a third-party pen-test window. Cut-over is rehearsed with corporate pilots, not assumed.
- 05
Launch and run
Cut-over + ongoing
Named engineers on 24/7 cover. Runbooks, dashboards, corporate playbooks and the audit log are handed to your team on day one.
Engagement
Four ways to buy your B2B payments build
Same engineers, same standard. Only the commercial shape changes.
-
Fixed-scope build
A defined B2B payments stack at a fixed price and date. Best when rails, approval model and ERP mix are settled.
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Dedicated team
A standing squad with a lead. Best for long roadmaps and new rails or corporate segments each quarter.
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Staff augmentation
Senior engineers inside your team. Best when you already own the plan and need B2B depth.
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CTO advisory
Architecture and buy-vs-build review before you commit. Best at the design stage.
Questions
FAQ: B2B payment processing software
Six answers up front on scope, off-the-shelf trade-offs, B2B vs B2C, rails and ERPs, PSD2/PCI/AML/GDPR and support. Bring the rest to the call.
What does B2B payment processing software from TrustChange actually cover?
We engineer a bespoke, client-owned B2B payments stack end to end: the corporate portal with multi-user roles and approval chains, the ops and treasury console, the payment router across SEPA / SEPA Instant / wire / card / open-banking / stablecoin rails, invoice and PO ingest with 2- and 3-way matching, the double-entry ledger, compliance controls and reporting. It ships as source code in your repositories, with the IP assigned to you and no per-transaction fee.
How is your build different from off-the-shelf B2B payment processing software?
Off-the-shelf B2B platforms bundle a fixed corporate model and a licence fee, and the approval logic lives inside the vendor's product. TrustChange shapes the corporate schema, the approval chain and the router against your actual buyer segments, rails and ERP mix. A bespoke build takes longer up front, but you keep every workflow, every adapter and every posting decision — and you avoid the roadmap lock-in that comes with a packaged product.
How is B2B payment processing different from a consumer (B2C) gateway?
In B2C the buyer is a single consumer with a card or wallet; SCA happens on the device and settlement runs per-day. In B2B the buyer is a legal entity with beneficial owners, multiple users and delegated authority; approvals are multi-step, tickets are larger and often batched to cut-off, reconciliation includes PO and invoice matching, and reporting includes GL exports and ERP-shaped bundles. The B2C-vs-B2B table on this page shows the split.
Which rails, ERPs and payment scenarios do you cover?
SEPA and SEPA Instant, wire, card (where relevant), open-banking pay-ins under PSD2, direct debits, bulk SEPA files and stablecoin rails where the corridor calls for them. ERP adapters cover the common shapes (NetSuite, SAP, Xero and similar), with PO and invoice ingest under a canonical schema. Standard B2B flows include AP payouts, AR collections, supplier onboarding, spend management and treasury sweeps — all posting into the same double-entry ledger.
How are PSD2, PCI DSS, AML and GDPR engineered into the platform?
TrustChange is an engineering partner, not a law firm — your compliance team sets the policy, we ship the controls and the evidence. That means KYB and UBO in onboarding, sanctions and PEP screening inside the flow, PSD2-aware fields on card and open-banking cases, PCI-scope-minimising handling of card data, four-eyes gates on money-moving actions and GDPR-aware storage with retention rules per case class. Nothing about licences or QSA reports is claimed on your behalf.
Do you also run the B2B platform after launch, or hand it over?
Both are on the table. Most clients start with named TrustChange engineers on 24/7 cover during the first months while their own team ramps up, then take the platform in-house with runbooks, dashboards, corporate playbooks and the audit log. Some keep us on as a dedicated development team or on staff augmentation for new-rail adapters, ERP integrations and roadmap work.
Book a discovery call for B2B payment processing software
Bring the buyer segments, the rails, the ERP mix, the licence context and where the pain sits — stuck bulk files, slow approvals, unmatched invoices or a stuck ERP export. We come back with a control map, an architecture view and a costed plan. No demo theatre.