Send invoices on WhatsApp, follow up automatically with escalating reminders, and reconcile payments — so you can stop being a collection agent and get back to real work.
14-day free trial · No credit card required · Cancel anytime
The problem is massive
Features
Purpose-built for Indian B2B collections. Not another accounting tool — a collection engine.
Your clients live on WhatsApp. Send invoices, reminders, and payment links where they actually respond — not buried in email.
From friendly nudge to firm reminder — auto-escalating tone. You set the rules, we do the chasing.
Accept every payment method Indian businesses actually use. Auto-reconcile with TDS handling, partial payments, and advance credits.
Create GST-compliant invoices in 90 seconds. Auto-calculate CGST/SGST/IGST based on state codes. HSN/SAC codes built in.
Know who pays on time and who doesn't. AI-powered payment behavior scores help you decide credit terms and prioritize follow-ups.
"I'll pay next week" — track every promise, detect broken ones, and escalate automatically. No more manual spreadsheet tracking.
How it works
What used to take weeks of manual follow-ups now happens automatically.
90 seconds. GST auto-calculated. PDF generated instantly.
Invoice + pay button delivered on WhatsApp. 89% open rate vs 12% for email.
Automated escalation sequence. Friendly to Professional to Firm to Urgent.
UPI/NEFT/Card payment auto-reconciled. Follow-ups stop instantly.
Testimonials
“We used to spend 15 hours a week chasing payments. Now it's fully automated. Kontrax recovered ₹18 lakh in overdue invoices in the first month.”
Priya Sharma
Founder, Digital Agency · Mumbai
“The WhatsApp integration is a game-changer. Clients actually respond to payment reminders now. Our DSO dropped from 90 days to 35.”
Rajesh Patel
CFO, IT Services · Bangalore
“Finally, someone built invoicing for how Indian businesses actually work — WhatsApp, UPI, TDS, the whole thing. No more juggling Tally + Excel + WhatsApp.”
Ananya Gupta
CA & Business Consultant · Delhi
Pricing
Even one recovered overdue invoice pays for a full year of Kontrax.
For freelancers and solo consultants
For agencies and growing SMBs
For established businesses
Indian SMBs lose 15-20% of revenue to unpaid invoices every year. Kontrax fixes that with WhatsApp follow-ups, smart escalation, and instant payment reconciliation.
No credit card required · 14-day free trial · Cancel anytime