Home » Merchant Payment Solutions » Gateway Due Diligence Checklist for MSB/EMI/PSP Purchasing Deals

Gateway Due Diligence Checklist for MSB/EMI/PSP Purchasing Deals

Illustration of a gateway due diligence checklist with a magnifying glass, security shield, and document folder for MSB/EMI/PSP

Fraud prevention high-risk is not only about tools—it’s about controllable processes: routing governance, logs, access roles, and incident-ready operations. When buying or selling an MSB/EMI/PSP with a payment orchestration platform, gateway due diligence must verify what can actually run on day one: ownership of IP, real integrations, configurable routing/cascading rules, reporting, reconciliation, and security boundaries. Where card data is involved, PCI DSS responsibilities and supporting documentation must be clear, current, and accessible.
On the regulatory side, confirm the license/registration status and obligations: for Canadian MSBs, FINTRAC provides registration and registry references that buyers can use as a baseline verification. See: FINTRAC MSB registry.

Look at our Pillar guide to buying or selling an MSB/EMI/PSP with a payment orchestration gateway.


Checklist (use as a deal annex)

A) IP & ownership

  • IP assignment / license terms signed
  • Source control access + build/deploy ability
  • No hidden vendor lock-in clauses

B) Integrations & payment methods coverage

  • List of integrated PSPs/APMs + evidence (docs/screens)
  • Geo/currency coverage map and constraints

C) Routing and cascading

  • Rules engine exists (geo, risk, limits, fallback)
  • Change control: who can edit rules and how approval works

D) Logs, reporting, reconciliation

  • Transaction lifecycle logs (request/response, status changes)
  • Standard reports (approvals/declines, by geo/provider/method)
  • Reconciliation workflow and data exports

E) Security controls

F) Regulatory scope fit (deal risk)

G) Operations & transition

  • Monitoring and incident response basics
  • Support model and knowledge transfer plan
  • Minimum viable documentation pack

Related guides


How WiseAlt helps with Gateway Due Diligence

Want this checklist converted into a signed deal annex plus a launch-ready documentation pack? WiseAlt can provide the contracts pack and a structured assessment flow to move the deal to closing.