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For Indian CA firms · GST + Tally

GSTR-1 filing
shouldn't take
all week.
It takes 10 minutes.

The audit-side software for CA firms with GST clients. Invoice generation, GSTR-1 prep, and Tally export all run off the same data your client's billing already produces, so the only thing left for your team is review.

~10 min per GSTR-1 filing
3 clicks to export to Tally
0 manual GST math
app.quillix.co · Sharma Textiles Pvt Ltd
Quillix
Dashboard
Sales Entry
Sales History
GSTR-1
Masters
Tally Export
Reports
Store Dashboard
JUL 2026 · 18 DAYS TO GSTR-1
Revenue
₹18.4L
GST out
₹3.2L
Invoices
247
Daily sales · last 14d
+22%
The way it works now

It's the 8th. Your team starts opening Excel.

Same week of the month, every month. Same scramble across every client. If this is recognisably your firm, you already know the kind of tool that's missing.

Mon · 8th
Compile invoices from 47 client WhatsApp messages
Sales registers, scanned bills, voice notes: every client sends in a different format.
~6 hours
Tue · 9th
Re-verify GSTINs because one typo killed last month's JSON
15 characters. One wrong digit. Whole filing rejected. Again.
3 hours + anxiety
Wed · 10th
Manually split CGST / SGST / IGST by registration type
Same-state? Split it. Inter-state? Don't. Now do that for 247 invoices.
All day
Thu · 11th
Hand-format B2B, B2CS, B2CL, HSN sheets for the JSON utility
The govt portal wants exact columns in exact order. One mistake, you redo all four.
Filing day · stress
!
And then Tally export day: voucher entries copy-pasted client by client because your billing tool doesn't talk to Tally. Quillix is the alternative.
The Quillix way

Your clients enter the data. You inherit the filing.

Every invoice your client saves for their own billing is already a filing-ready GSTR-1 line. Nothing to chase, because the data is being entered anyway, by the people whose job it is to enter it.

  • 1
    Their billing entry = your filing entry When the store manager raises an invoice, Quillix auto-fills GSTIN, HSN code, GST slab, and Tally ledger mapping. One entry. Two jobs done.
  • 2
    One firm-wide view, always current An auditor dashboard that shows which clients are filed, which are pending, which are flagged. The "has anyone touched ABC's GSTR-1?" question stops getting asked.
  • 3
    Nothing to collect. Nothing to reformat. On filing day, the GSTR-1 JSON and the Tally export are sitting there ready, pre-sorted into B2B / B2CS / B2CL / HSN. Review, sign off, file.
FROM CLIENT BILLING · LIVE
GSTR-1 · July 2026 · Sharma Textiles
247 INVOICES · 0 HRS OF DATA COLLECTION
B2B Registered GSTIN holders 132
B2CS Consumer sales (under ₹1L) 98
B2CL Large inter-state consumer 12
HSN Item-wise summary 28
gstr1_jul2026.json Download
Features

Six things that save your firm a day a month.

Built around the work, not around the demo. No spreadsheets in between, no copy-paste between tools.

GR

GSTR-1 ready

B2B, B2CS, B2CL, HSN summary pre-sorted. JSON in the exact format the offline utility expects.

SE

Smart sales entry

Auto-fill from customer masters. Auto CGST/SGST split for intra-state, IGST for inter-state. Custom prefix / suffix / serial.

TX

Export to Tally

Map stock items to Tally ledgers: Sales, CGST, SGST, IGST. One-click, voucher-ready, drops straight into your books.

DB

Live business dashboard

Revenue, GST collected by slab (5/12/18/28), today's sales, top customers. Every client's pulse at a glance.

GV

Strict GSTIN check

15-char format validation with a suggestive review panel for likely typos. Catches errors before they kill your filing.

BI

Bulk Excel import

Customers, stock items, ledger mappings. Onboard a new client from their existing register in minutes, not hours.

From login to filing

Three steps. That's the whole product.

Set up your masters, raise invoices, export at month-end. The scope is GST and Tally. That's the whole product.

STEP 01
Import your masters
Drop in your customer and stock-item Excel registers. Map your Tally ledgers. Done once, Quillix remembers everything.
STEP 02
Raise invoices like you always do
Sales entry auto-fills from masters. GST splits, serial numbers, print-ready PDFs generated instantly. No calculation, no formatting.
STEP 03
Export, file, move on
Download GSTR-1 JSON for the govt portal. Export to Tally for your books. Filing day becomes a coffee break.
Roles & permissions

Three roles. Clean permissions. No mess.

From the senior partner overseeing 50 clients to the data-entry hand raising tomorrow's invoices, each role sees only the scope it owns.

Capability Auditor The firm partner Platform-wide access. Switch between client stores in one click. Run firm-wide MIS. Configure invoice templates across the firm. Admin The store manager Full reign inside one client store. Manage masters, approve edits, run filings. The day-to-day owner of that client's compliance. User The data-entry hand Scoped to the daily work. Raise invoices, view history. Edits go through an approval request; the admin signs off before anything changes.
Access every client store
Firm-wide MIS reports
Manage customer + stock masters
Run GSTR-1 + Tally exports
Approve user edit requests
Raise new invoices
View invoice history
Pricing

Start free. Add stores as the firm grows.

One Free workspace per firm. Move to Basic when you need more: 5 client stores included, plus a flat per-store rate for everything beyond.

Starter
Free
₹0/mo

Run a real client store through Quillix. No card on file, no time limit.

  • 1 auditor login
  • 1 client store
  • 1 user-side account (your client)
  • 100 invoices per month
  • GSTR-1 filing prep
  • Tally voucher export
  • Email support
Concierge Onboarding · ₹300 / store

We set up the store with you over a screen-share: masters, customer list, HSN codes, Tally export mapping. Online only, one session per store, paid once per store. Skip it if your team prefers self-setup.

Book a session →

Try any paid plan risk-free. Full refund within 30 days, no questions asked.

Schedule a demo

See Quillix on your client's data.

A focused 15-minute walkthrough on a sample store that matches the kind of clients your firm runs.

15-min walkthrough
What you'll get

Live walkthrough on a sample client store with your specific questions answered. Not a sales pitch.

  • Demo on the kind of clients your firm runs
  • Bring anyone: partner, data-entry, articled clerk
  • 30-day refund if you sign up after and change your mind
  • We'll match your timezone
What we'll cover
0-3 min Your current workflow + pain points
3-11 min Live walkthrough: GSTR-1, Tally, masters
11-15 min Questions, pricing fit, next steps
Book your demo
15 MIN · NO COMMITMENT
✓ Thanks! Your email client should open with your request pre-filled. If it didn't, write to us at support@quillix.co.
What's next

More than invoicing.
The rest of the audit workflow is on the way.

Four upgrades landing over the next few quarters, included on every Quillix firm as they ship.

QX // SHIPPING
FAQ

The questions firms ask before signing up.

Something missing? Write to us; the address is at the bottom of every answer.

What does Quillix do? +

Audit-side software for Indian CA firms with GST clients. It covers customer + stock masters, sales-invoice generation with automatic CGST/SGST/IGST split, GSTR-1 filing prep (B2B, B2CS, B2CL, HSN summary), and Tally-compatible exports.

The wedge: your clients raise invoices for their own billing, and that same data becomes the filing-ready GSTR-1 and the Tally voucher set. No separate data-collection step on the 8th of the month.

Who is Quillix built for? +

Indian CA firms, audit firms, and chartered accountants with GST clients: solo practitioners with 5 clients up through mid-size firms running 100+ client books. If your monthly grind includes GSTR-1 prep, Tally voucher exports, and asking clients for sales data on the 8th, Quillix is built for you.

How is pricing structured? +

Two plans. Free covers one client store, 100 invoices a month, GSTR-1 prep and Tally export, with no card and no time limit. Basic is ₹2,499/month for 5 auditor logins, 5 client stores included, and unlimited invoicing; additional stores are ₹499/month (Bookkeeping & GST) or ₹399/month (GST only). Annual billing gets two months free.

Full breakdown on the pricing section above.

What's the refund policy? +

30-day money-back guarantee, no questions asked. If Quillix doesn't save your firm time on the next filing cycle, email support@quillix.co and we'll refund the subscription in full. No exit interview, no retention form.

Can I import data from Tally or Excel? +

Yes. There are Excel import templates for customer masters (with GSTIN), stock items (with HSN codes and GST rates), and ledger mappings for Tally. Drop in your existing client register and the store is set up in minutes.

On the way out, the Tally export is voucher-ready CSV mapped to your Sales / CGST / SGST / IGST ledgers and imports cleanly into Tally Prime.

Is my client data secure? +

Yes. Data is encrypted in transit (TLS) and at rest (AES-256). Each firm's data is isolated at the database-rule layer; your clients' invoices and GSTINs are visible only to your firm's authorised users. Access control, audit logging, and backups run on standard practice.

Quillix is hosted on Google Firebase, whose infrastructure is SOC 2 Type II and ISO 27001 certified.

When will Sales OCR, Purchase OCR, and GSTR-3B filing land? +

Phased over the next few quarters, in this order:

Sales OCR first (snap a paper invoice, AI extracts line items / GSTIN / HSN), then Purchase OCR and 2A & 2B vs Books reconciliation, then GSTR-3B filing. We're keeping dates fuzzy on purpose. We'd rather ship a feature when it's solid than commit to a quarter and miss it.

Basic plan firms get early access automatically as each one lands. See What's next for the full set.

Can I see a demo before signing up? +

Yes. A 15-minute live walkthrough on a sample client store that mirrors your kind of clients: GSTR-1 + Tally flow end to end, plus your specific workflow questions. Not a sales pitch. Schedule it here.

Still have questions? We usually reply within 24 hours.
Email us →
Free GST tools

Free tools your whole
firm can use today.

The same GST engine that powers Quillix — a calculator, an invoice generator, an HSN finder and more. Free, accurate, right in your browser — with a free Quillix login.

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From the Quillix blog

Real GST problems.
Field notes from the filing room.

Workflow problems that trip firms up on filing day. No whitepaper theory.

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Get started in 5 minutes

The next GSTR-1 doesn't have to be a Saturday.
Make it a coffee break.

Open a client store, import a register, raise a test invoice. If filing day isn't faster on the next cycle, don't switch.