Payments & Billingby SoftwareCrafting

Service Overview

We build payment and billing systems where the numbers are correct, which sounds obvious and is where most implementations quietly fail. Card charges are the easy part. The difficulty is in the states around them: webhooks arriving out of order or twice, a customer whose card fails on renewal, a subscription upgraded mid cycle needing proration, a refund partially issued, and the reconciliation that proves what your database says matches what the payment provider says. We build for that explicitly with idempotency on every write path, webhook processing that is safe to replay, a subscription state machine covering trial, active, past due, paused, and cancelled, and dunning that recovers failed payments without annoying good customers into leaving. We work with Stripe, Razorpay, and PayPal, including multi gateway setups where you need regional coverage or a failover path so a provider outage does not stop checkout. For India we handle the specifics: UPI, RuPay, and the mandate rules that govern recurring payments.

Technologies we use

Key Features

• One-time & recurring Stripe payments
• Razorpay integration for Indian markets
• Lemon Squeezy SaaS billing & licensing
• Paddle tax-compliant global billing
• Subscription management & plan upgrades
• Webhook handling for payment events
• Automatic invoicing & receipts
• Refund and dispute management
• Idempotent payment write paths safe under retries
• Webhook processing that is ordering independent and safe to replay
• Subscription state machine covering trial, active, past due, paused, and cancelled
• Proration for mid cycle upgrades, downgrades, and seat changes
• Dunning and retry strategy that recovers payments without churning customers
• Reconciliation between your database and the provider ledger
• Multi gateway routing with failover so an outage does not stop checkout
• Indian payment methods including UPI, RuPay, and recurring mandates