The Hidden Cost of 'Easy' Payment Gateways
Most SaaS founders pick a payment gateway because it's easy to integrate. Razorpay's docs are excellent. Cashfree's dashboard is polished. But the ease of integration comes with a cost — literally. Every transaction is taxed at 1.4–2% plus 18% GST, and that number compounds fast.
A SaaS charging ₹499/month subscriptions with 500 customers generates ₹2.5 Lakhs in monthly revenue. At 2% + GST, that's ₹5,450 per month — or ₹65,400 per year — going to your payment processor. That's equivalent to half a developer's salary, or a full marketing budget for a quarter.
Five Criteria That Actually Matter
1. Total Cost of Ownership
Don't just compare the per-transaction fee. Look at the total cost including GST, annual maintenance fees, chargeback fees, and the opportunity cost of delayed settlements. A gateway with 'lower' fees but T+7 settlement is costing you more than one with slightly higher fees but T+0 settlement.
2. Settlement Speed
Cash flow is oxygen for any SaaS. Waiting 2–7 days for settlement ties up capital and makes financial planning difficult. Instant settlement (T+0) means you can reinvest revenue immediately — whether that's into feature development, customer acquisition, or payroll.
3. API Developer Experience
Your engineering team will interact with the payment API daily. Look for: typed SDKs, comprehensive error handling, webhooks with retry logic, sandbox environment, and documentation that doesn't require a PhD to navigate. A great API saves your team hours of integration time and countless hours of debugging later.
4. Payment Verification Automation
The best API in the world doesn't help if you're spending 30 minutes every evening reconciling payment emails against your order database. Automated verification — where the gateway detects payments and notifies your system without any manual intervention — is a force multiplier for small teams.
5. Vendor Lock-in Risk
Some gateways make it intentionally difficult to migrate data or switch providers. Standardized APIs (REST, OpenAPI spec) and exportable data formats protect your business. MyMobPay's API follows standard REST conventions with OpenAPI documentation, making it trivial to switch if needed.
The Rising Alternative: Direct UPI Settlement
In 2024, NPCI streamlined UPI infrastructure, making it easier than ever for fintechs to build on top of the UPI rail without becoming regulated aggregators themselves. This has given rise to a new class of payment solutions — direct-to-bank payment processors — that route payments straight from customer to merchant without an intermediary.
MyMobPay is built on this model. Instead of routing payments through an escrow account, we use the UPI/IMPS rail directly, combined with automated email-based verification. The result: zero transaction fees, instant settlement, and no account holds.
Decision Framework
If your monthly volume is:
- Under ₹1LA traditional aggregator like Razorpay is fine. The fees are manageable and the ecosystem is robust.
- ₹1L – ₹10LStart evaluating direct settlement. The savings begin to matter, and the integration complexity is worth it.
- Over ₹10LDirect settlement is almost certainly your best option. At this volume, aggregator fees exceed ₹20,000/month.
Final Thoughts
Your payment gateway is not just a utility — it's a strategic decision that affects your margins, your cash flow, and your engineering productivity. Take the time to evaluate options beyond the default 'easy' choices. The right decision today could save your business tens of thousands every year.
Want to see the numbers for your business?
Use our interactive calculator or talk to our team about a migration plan.
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