Stripe Billing / subscriptions: Stripe Billing integrations that keep subscriptions and revenue records in sync.
Launch new subscription plans, repair unreliable renewals, automate invoicing and keep Stripe events aligned with your product access and financial records. We design the lifecycle first, then implement and test the edge cases.
Stripe-certified professionals · Written scope after review · Built in your existing stack
- 01TrialTrial period startsthen
- 02First invoiceFinalised and paidthen
- 03RenewalNext period invoicedthen
- 04WebhookSigned event, processed oncethen
- 05Product accessEntitlement stays activeActive
01The problem
When Stripe and your application disagree, billing becomes support work.
A payment may succeed while the app still says “unpaid.” A downgrade may take effect at the wrong time. Failed renewals may not update access, support tickets or invoices.
- 01
Subscriptions out of sync
Stripe says one thing about a subscription; your user entitlements say another.
- 02
Failed payments handled poorly
Retries, notifications and the decision about access happen inconsistently, or not at all.
- 03
Plan changes get complicated
Billing cycles, trial conversions and prorations behave differently from what the product promised.
- 04
Migration risk
Duplicate customers, invoices and conflicting subscriptions appear when billing moves between systems.
02Services
Billing built around the full customer lifecycle.
- 01
Subscriptions and pricing
Recurring prices, trials, coupons and discount rules where needed, upgrades, downgrades and customer-facing account changes.
What you receive
- Price and plan model in Stripe
- Upgrade and downgrade rules
- A state-policy table for every plan change
- 02
Invoices and collections
Invoicing, payment methods, the invoice lifecycle, payment failures, automatic or manual collection, and reminders or dunning where supported and configured.
What you receive
- Invoice lifecycle handling
- Collection settings matched to your policy
- Failure paths that update your app
- 03
Customer portal and self-service
An authenticated billing portal for plan updates, payment method management and cancellation or retention flows.
What you receive
- Portal configuration and entry points
- Return handling back into your app
- Cancellation flow your team agreed
- 04
Webhooks and access synchronization
Signature checks, idempotency, duplicate and out-of-order events, retry and queue processing, reconciliation and entitlement state.
What you receive
- Verified, idempotent webhook handlers
- A reconciler for missed or late events
- Entitlements driven by billing state
- 05
Migrating billing safely
Data mapping, customer and payment-method migration feasibility, dry runs, cutover strategy, idempotent migration jobs, rollback and a support plan.
What you receive
- Field-by-field data map
- Dry-run results before cutover
- Cutover and rollback runbook
- 06
Audit and repair
Event-log review, invoice mismatch diagnosis, webhook failures, code cleanup, and monitoring and alerting.
What you receive
- Findings ranked by risk
- Fixes in your repository
- Alerts on failed events and payments
Know which part of your billing is failing, or what you need to launch? Talk it through with the engineers who would build it.
03Architecture
One subscription. Several systems. One consistent state.
We define the state transitions and exception handling before modifying production billing.
- 01Customer / appChooses a planthen
- 02Checkout or BillingCollects payment detailsthen
- 03Subscription + InvoiceCreated and paidthen
- 04Signed webhookscheckout.
session. completed · invoice. paidthen - 05Queue / reconcilerProcessed once, in orderthen
- 06Entitlements + reportingAccess grantedActive
What we verifyCheckout completes once, the subscription and first invoice match the chosen plan, and access is granted only after the paid event is processed.
04Engagement outputs
What the team hands over.
- An audited billing architecture and state map.
- A working integration in your own repository and Stripe account.
- Webhook signature verification, idempotency and a reconciliation strategy.
- Test-mode scenarios, with test evidence for successful and failed states.
- A go-live or cutover runbook, a rollback approach and an admin handover.
- Operational logs, monitoring recommendations and knowledge transfer.
Exact deliverables depend on the scope we agree in writing.
05Ways to engage
Start with the problem, not a package you do not need.
Billing audit & repair
For existing subscription bugs, missed events and access drift.
Scope and price confirmed following technical review.
New recurring revenue build
For new SaaS recurring pricing, upgrades and a customer portal.
Scope and price confirmed following technical review.
Billing migration
From your current billing solution to Stripe, or to a redesigned Stripe setup.
Scope and price confirmed following technical review.
Need ongoing billing and product work rather than a project? Dedicated Engineers join your team by the month.
06Engineering confidence
Built by engineers who understand both payments and product state.
The people who scope your billing work are the people who build it.
Cevrynt, Inc. is a Stripe partner in the Stripe Partner Ecosystem.
The partnership belongs to the company. The certifications below belong to the people named.
View our Stripe Partner Directory profile (opens in a new tab)
Arindam Pradhan
Founder, engineering lead
Stripe Certified Professional — Implementation Architect
Anupam Pradhan
Stripe Certified Professional — Payments Architect
Subhadip Giri
Full stack developer
Stripe Certified Professional — Payments Architect
- 300+
- projects delivered
- 50+
- CRM deployments
- 90,000+
- leads a day handled by systems we built
- 9GB+
- production databases
- ~$800 → $150
- monthly cloud costs, cut for a client
Delivered by the team, including work as GreenBorn Infotech.
You work directly with Arindam Pradhan, who has built production software since 2018, and four senior engineers with six or more years each. We work remotely from India with overlap into US and European hours. These figures cover the team’s software delivery in general, not Stripe work alone.
07Process
From the current implementation to a controlled release.
- 01Discovery and lifecycle auditWe trace plans, events, account settings and how your app decides who has access.
- 02Architecture and written scopeA state map, the event handling design and a written scope and price.
- 03ImplementationBuilt in your repository and Stripe account, reviewed weekly.
- 04Test-mode failure matrixSuccessful, failed, retried, duplicated and out-of-order events, run in Stripe test mode.
- 05Controlled cutoverA planned release or migration with a rollback path.
- 06Monitoring and handoverAlerts on failed events and payments, plus handover notes. Payments can still fail; the system now handles it.
08Questions
Stripe Billing questions, answered first.
The short answer leads. Open any row for the full one, in the same words we would use on the call.
01Can you fix an existing Stripe subscription integration?Yes, from the event log
Yes. We start by tracing the events, the Stripe account configuration, your local subscription records and how entitlements are updated, then propose fixes based on what we find.
02Can you build Stripe Billing into Laravel, Next.js or Node.js?Yes, PHP/Laravel included
Yes. We integrate with the stack you already run, with the right split between frontend and backend, and with sensitive operations processed securely on the server.
03Can you migrate subscriptions from another billing provider?After a feasibility check
We first assess how portable your data is, whether payment methods can be transferred, how billing dates carry over and where the cutover risks are. We commit to a migration plan only after that assessment.
04How do you handle failed payments or missing webhooks?Modelled, then tested
We model the collection and retry policies your account supports, add idempotency, logging and reconciliation for missed or late events, and verify the failure paths in Stripe test mode.
05How much does a Stripe Billing project cost?Quoted after a review
After reviewing your plans, event flows, migration scope and integrations, we send a written scope and quote. Nothing is billed before you agree it.
06Will you work in our own Stripe account and repository?Yes, with least privilege
Yes. The work happens in infrastructure you own, with least-privilege access. We never ask for raw production API secrets by email.
Still deciding?Book a Stripe Billing consultationor write toarin@cevrynt.com
09Related services
Subscriptions are rarely the only payment problem.
- For marketplaces and platformsStripe Connect & marketplace paymentsSeller onboarding, platform fees and payouts designed for your business model.Scoped after a technical review
- For POS, kiosk and mobile productsStripe Terminal & Tap to PayKiosk, POS and mobile payments, including real native integration experience.Scoped after a technical review
- The Stripe Payments hubAll Stripe workCheckout and payments, webhooks, migrations, and every Stripe specialty in one place.Scoped after an audit
- For agencies and startupsDedicated EngineersOngoing Stripe and product work by the month, from engineers who join your team.From $4,000/month per engineer
FreeGuide · 44 checks · 41-page PDF
Stripe Integration Health Check
The checklist our team runs at the start of a Stripe audit. Use it on your own integration in an afternoon and see where it is likely to fail first.
- Webhooks8
- Payments and idempotency6
- Billing and subscriptions8
- Connect (platforms and marketplaces)6
- Terminal and in-person payments5
- Keys, access and security6
- Operations and monitoring5
Book a call
Make your subscription lifecycle reliable before it gets harder to change.
Tell us what you are launching or fixing. We will explain the technical path and next steps.