GST Invoice Software
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GST Invoice & Billing Software
Chasing payments, typing invoices by hand and reconciling GST at month-end eats hours you don't have. Manoos builds custom GST billing and invoicing software for shops, distributors and service businesses across Kerala: fast GST invoices, inventory, dues and reports in one place, shaped around how your business actually bills. Buy it once, host it yourself, and own it outright — no per-user, per-month SaaS fees eating your margin.
Whether you're a single retail counter, a distributor with a warehouse or a service firm raising monthly bills, you get software that fits your workflow — not a rigid product that forces you to change everything. And because you host it, your sales and customer data stays under your control.
Why bespoke beats rented software: off-the-shelf billing software charges you every month, forever, usually per user, and makes you work its way. Custom software is built around your business, costs a predictable one-time build, and grows with you without a bigger bill each month. When you need a change — a new invoice format, a new report — it's a quick edit, not a support ticket into a queue.
What it handles
Everything a growing business needs to bill and track — built to fit your business, hosted by you,
owned outright:
GST invoices & receipts
Customer & ledger accounts
Inventory & stock control
Purchase & expense entries
HSN/SAC & tax summaries
SMS / WhatsApp reminders
Multi-counter & multi-branch
Reports & daily collections
GSTR-ready reports & exports
WhatsApp / email invoicing
Role-based staff logins
Yes — retail shops, wholesalers, distributors, service firms and traders. We shape the billing to how your business works.
No forced monthly fees. You buy the software once and host it yourself — your costs stay fixed as you grow.
We build with security and privacy in mind, and because you host it, your sales and customer data stays with you, not on someone else's servers.
Yes — GST invoices with HSN/SAC codes, tax breakups and GSTR-ready summaries.
Yes — stock levels, low-stock alerts, purchase entries and multi-item invoices.
Yes — share invoices and payment reminders over WhatsApp or SMS, automatically.
Yes — businesses across Kochi, Trivandrum, Kollam and Kerala. Most work happens online, with a demo and training included.
Absolutely. Ask for a live demo and we'll walk you through it before you decide anything — request a demo.



