Inside GST Mastery ERP
See your GST workflow in action
Billing, accounting, GSTR-2B reconciliation and GST compliance — all in one workflow.
Most billing apps stop at the invoice. GST Mastery keeps going — it matches your purchases against GSTR-2B, warns you before a TDS limit is crossed, and closes into a Trial Balance that actually ties.
Works on your phone browser — nothing to install. Plans from ₹239/month.
Illustration of the 2B matching screen with sample data.
Billing, accounting, GSTR-2B reconciliation and GST compliance — all in one workflow.
Built by a practising accountant who files GST returns every month — for distributors, small manufacturers and their accountants.
Every cheap billing app makes a clean invoice. None of them tell you the three things that actually cost you money.
You find out months later, in a notice. GST Mastery matches every purchase against GSTR-2B — invoice number, GSTIN, tax amount, in multiple passes — records your IMS decision, and hands you a 9-sheet audit workbook you can send straight to your CA.
While you're entering the bill, the screen already shows that supplier's total for the year so far — and warns you when the next entry crosses the threshold. PAN is mandatory on the party, which helps you avoid the higher 206AA rate.
Every voucher here is real double-entry, checked Dr = Cr before it saves. That's why the Trial Balance, Balance Sheet and P&L come out of the same data as your invoices — no separate books to reconcile at year end.
The honest comparison — by category, not by brand.
| Cheap billing apps | GST Mastery ERP | Desktop accounting | |
|---|---|---|---|
| GST invoicing, stock, outstanding | Yes | Yes | Yes |
| GSTR-1 JSON for the portal | Yes | Yes | Yes |
| GSTR-2B matching + IMS decisions | Rarely | Yes | Yes |
| TDS/TCS limits shown while billing | No | Yes | Partly |
| Trial Balance & Balance Sheet from the same data | No | Yes | Yes |
| Bill comfortably from a phone | Yes | Yes | Limited |
| Typical cost | ~₹3,400–4,000/yr | ₹1,799/yr onwards | ₹22,500 + GST one-time, then ~₹4,500/yr + GST renewal |
Competitor figures are publicly listed prices for the category (checked Oct 2026) and change often — check the vendor's own site before comparing.
Everything listed here is live today. What is still being built is named in the FAQ below.
See how eligible ITC and tax balances flow through the GST-3B offset process, with a clear compliance-focused view.
GST-3B compliance workspace preview.
Your clients send bills; you carry the compliance risk. Run every client from one login, with the checks that matter to you already in the software.
GSTIN, address and financial year. Two minutes.
Party list, item list and opening balances in whatever Excel you already keep — I'll set it up for you before you start.
Invoice from your phone or laptop. 2B matching, TDS limits and the Trial Balance run behind you.
No feature is locked behind a higher plan. The only difference is how many people log in.
Yearly saves up to 37%Prices in INR. Applicable GST, if any, is shown before you pay. Payments handled by Razorpay. See Refund Policy before you pay.
No — not yet. You can record the IRN, acknowledgement number and date against a bill, but the software does not call the IRP or produce the QR code. If e-invoicing is mandatory for you, generate the IRN on the portal or your current tool and record it here. It's on the roadmap, and I'll say so plainly when it's live.
GSTR-1 data and JSON export are ready for portal upload. A GSTR-3B summary is being built. Nothing files directly from the software — you upload on the GST portal yourself, or your CA does.
Yes. Send me your party list, item list and opening balances in the Excel you already keep and I'll set the company up for you before you start billing. Opening balances go in through a Suspense account and carry forward at year end.
Each company's data is isolated, one login can hold only one active session, and every change is written to an audit log with the old value, the new value and the IP address. The server takes automated daily backups.
Yes — the billing screens are built mobile-first and run in your phone's browser. There's no app to install, so nothing to update.
One practising accountant who files GST returns every month and writes the software himself. That's why the checks are where they are — and it means support comes from the person who built it, on WhatsApp, not a script.
Create an account and enter one bill, or send me a WhatsApp and I'll walk you through it on a call.
