Stripe & Payment Integrations

Migrations

End-to-end migrations from Cleverbridge, Adyen, Recurly, Chargebee, BACS-only setups, or Stripe-to-Stripe rebuilds - including new Billing & subscription configuration.

Migrations are the highest-stakes work we do. A single missed renewal, a duplicate charge, a tax line item that suddenly looks different on a customer's invoice - any of these can erode trust faster than the migration itself can rebuild it.

We've migrated hundreds of thousands of customers onto Stripe - from Cleverbridge, Adyen, Recurly, Chargebee, BACS-only setups, and other Stripe accounts. Every migration is sequenced, dry-run, and validated before a single live customer is touched.

Off another PSP onto Stripe

Cleverbridge, Adyen, Recurly, Chargebee - each has its own data shape, mandate model and tax treatment. We build the migration plan to match.

Stripe-to-Stripe rebuilds

Splitting accounts into per-region or per-property Organisations, restructuring marketplaces, moving off Connect platforms.

Net-new Billing setups

Migrations are often the moment to redesign the billing model. We design Subscriptions, Invoices and Tax alongside the migration so customers land in their final state.

Mandate migrations (SEPA, BACS)

Direct Debit mandates have specific portability rules. We handle the legal, technical and operational steps to move them without losing collection rights.

Methodology

Plan

Source audit and data mapping. We document exactly what exists today and where it has to land.

Cutover

Strategy and sequencing. Region by region, brand by brand, cohort by cohort - small enough to validate.

Test

Dry-runs against production-shaped data. We compare expected vs actual before any live customer moves.

Go-live

Zero-downtime switchover. Subscriptions and mandates carry over with no missed renewals.

Monitor

Post-migration support, structured reconciliation and a runbook your team can keep using.

Migrations are bet-the-quarter projects

Square1 is the world's first verified Stripe Partner agency, with Specialised Partner status across Payments and Billing - and a team holding 12+ Stripe certifications across architecture, integration and reconciliation.

100k+

Customers migrated

0

Missed renewals

0

Double-billed customers

Phased sequencing

Migrations rarely succeed as single cutovers. We design them as sequenced phases - small enough to validate, small enough to roll back.

Production-shaped dry-runs

Before any customer moves, the full migration runs against representative data in a non-production environment.

Reconciliation alongside the move

Every migrated record carries metadata that lets your finance team reconcile the new world against the old, without manual matching.

Deep Expertise, Backed by Credentials

Payments

Specialized Partner

Billing

Specialized Partner

Terminal

Specialized Partner

Financial Services

Specialized Partner

Related Stripe Work

A sample of the Stripe integrations and payment platforms we’ve helped build.

View all our work

Evento

The leading AI-powered white-label registration and payments platform

Hyundai

Unifying Stripe payments across Hyundai's French operations

Ray Studios

Streamlining clinic payments for a fast-growing tattoo removal brand

Northius

Rearchitecting payments for a global education platform

UCD Professional Academy

Opening access to education through smarter payment plans

Latest News & Insights

Recent project news, team updates, and ideas worth sharing.

Read all news

Migrations

Migrations are the highest-stakes work we do. A single missed renewal, a duplicate charge, a tax line item that suddenly looks different on a customer's invoice - any of these can erode trust faster than the migration itself can rebuild it.

We've migrated hundreds of thousands of customers onto Stripe - from Cleverbridge, Adyen, Recurly, Chargebee, BACS-only setups, and other Stripe accounts. Every migration is sequenced, dry-run, and validated before a single live customer is touched.

Off another PSP onto Stripe

Cleverbridge, Adyen, Recurly, Chargebee - each has its own data shape, mandate model and tax treatment. We build the migration plan to match.

Stripe-to-Stripe rebuilds

Splitting accounts into per-region or per-property Organisations, restructuring marketplaces, moving off Connect platforms.

Net-new Billing setups

Migrations are often the moment to redesign the billing model. We design Subscriptions, Invoices and Tax alongside the migration so customers land in their final state.

Mandate migrations (SEPA, BACS)

Direct Debit mandates have specific portability rules. We handle the legal, technical and operational steps to move them without losing collection rights.

Methodology

Plan

Source audit and data mapping. We document exactly what exists today and where it has to land.

Cutover

Strategy and sequencing. Region by region, brand by brand, cohort by cohort - small enough to validate.

Test

Dry-runs against production-shaped data. We compare expected vs actual before any live customer moves.

Go-live

Zero-downtime switchover. Subscriptions and mandates carry over with no missed renewals.

Monitor

Post-migration support, structured reconciliation and a runbook your team can keep using.

Migrations are bet-the-quarter projects

100k+