What is the best payment gateway for SaaS in India?

For early-stage SaaS, gateways like VyaparGateway offer 0% platform fees on UPI transactions, ensuring you keep 100% of your initial revenue compared to Stripe or Razorpay's 2-3% fees.

Can I collect recurring subscriptions via UPI?

Yes, using UPI AutoPay (e-Mandates). However, for B2B SaaS, generating dynamic monthly invoices with standard UPI QRs often converts higher with fewer mandate failures.

How to Build a Zero-Fee SaaS Billing System in India (2026)

#saas billing india #recurring upi payments #bypassing stripe fees

If you are running a SaaS in India, you are likely bleeding margin. Between a 2% gateway fee, 18% GST on that fee, and currency conversion markups, traditional payment infrastructure eats into your MRR.

Let's architect a zero-fee billing engine using direct-to-bank UPI routing.

The Hidden Costs of SaaS Billing

When you use a platform like Stripe or Razorpay for subscriptions, you pay a percentage of your total revenue. For a SaaS business doing ₹10 Lakhs in MRR, a 2% fee means giving away ₹20,000 every single month just to move money. This is unacceptable for bootstrapped startups.

UPI AutoPay vs Manual Invoicing

While e-Mandates (AutoPay) sound great in theory, the failure rates in India can still be frustrating due to bank limits and OTP requirements for large amounts. Many B2B SaaS companies are finding success by switching to automated manual invoicing. On the 1st of every month, you generate a unique UPI payment link for the customer's exact tier amount and email it to them.

Building the Zero-Fee Architecture

1. Store your subscription data (plan, renewal date, amount) in your own database. 2. Run a daily cron job that finds subscriptions due today. 3. Ping the VyaparGateway API to generate a dynamic UPI QR and intent link for each invoice. 4. Email the link to the customer. 5. When the customer pays, VyaparGateway fires a webhook to your server, and you automatically extend their access by another month.

Conclusion

By owning your subscription logic and using a flat-fee UPI gateway for the actual money movement, you can increase your profit margins instantly. It requires slightly more engineering upfront, but the long-term ROI is massive.