Automatic tax invoices
A GST invoice PDF for every order. CGST + SGST within your state, IGST across states, worked out from the real ship-from and ship-to address.
GST Invoice For Indian Shopify stores
GST invoices that write themselves.
Every order becomes a correct tax invoice within seconds: the right CGST + SGST or IGST split, gap-free numbering, credit notes on refunds, and GSTR-1 ready at month end.
Free plan, 100 documents a month
No card required
Setup in about 10 minutes
Same stateCGST 2.5% + SGST 2.5%
GSTR-1 · SeptemberReady to file
What it does
Compliance handled, end to end.
Invoices are only the start. Refunds, corrections, numbering and filing are automated too.
Credit and debit notes
Cancellations and refunds raise credit notes on their own, full or partial. Edit an order after invoicing and the right note follows.
Numbering that survives audits
Sequential, gap-free and by financial year, in your own format. Continue from the last number your old app issued.
GSTR-1 and GSTR-3B
Filing-ready files in the GST offline tool's format, with exports, nil-rated sales, the HSN summary and documents issued.
File GSTR-1 from the app
Send the return to the GST portal and confirm with the code from your phone (EVC). Partnerships and proprietors.
ScaleSeveral GSTINs, HSN codes
Ship from more than one registered state and the right GSTIN (GST number) is used per order. Set HSN codes and rates in bulk by CSV.
Ten invoice layouts
Your logo, signature, brand colour and bank details. Composition sellers get a Bill of Supply instead.
Your accountant, in the loop
The month's filing pack emailed to your CA on a day you choose. On Scale, a read-only link too, with no Shopify login needed.
Labels and challans
4×6 shipping labels with the courier barcode, packing slips, and delivery challans for goods that move without a sale.
Setup
Running in about ten minutes.
Guided setup asks only for what the law needs and what only you know.
1
Install and add your GSTIN
Install from your Shopify admin, enter your GSTIN (GST number) and address, and upload a logo and signature if you want them on the PDF.
2
Set numbering and HSN codes
Pick an invoice number format or continue your existing series. Map HSN codes (product tax codes) and rates one by one or by CSV.
3
Let orders flow
From then on every order is invoiced on its own. Refunds raise credit notes. At month end, download or file.
Invoice layouts
Ten layouts. All rendered by the app.
Every image below is a real invoice from AppSaaz's own PDF engine, with sample data. Hover to pause.
Connects to
From Shopify to the GST portal.
S
ShopifyOrders, refunds and edits, in real time
GST
GST portalGSTR-1 filed from the app on Scale; JSON for the offline tool
CA
Your accountantRead-only link and monthly pack by email
XLS
Excel, CSV, PDFInvoices and notes for any date range
In production
Already filing real returns.
What AppSaaz has done for live stores, in numbers rather than quotes.
Aug + SeptGSTR-1 accepted by the GST portal
Built from AppSaaz invoices. September's was sent from inside the app.
10+Indian brands invoicing every day
Every order on those stores gets its invoice within seconds.
800+automated checks before every release
A change to filing output also has to be watched working on a test store.
The filing pack
One download your accountant will thank you for.
- GSTR-1 and GSTR-3B in the GST offline tool's format
- Invoice-level workings as CSV, so every figure traces back to an order
- A plain-English note on what you still enter yourself, like input tax credit
- A warning for any product still missing an HSN code
Pricing
Free to start. Scale files your GSTR-1.
Billed every 30 days through Shopify. Upgrade, move between plans or cancel any time.
Free
100 documents a month
$0/month
- A GST invoice on every order, automatically
- CGST and SGST, or IGST, by the buyer's state
- Credit and debit notes for refunds, cancellations and order edits
- Export invoices under LUT or with IGST
- Estimates, proforma invoices, delivery challans and vouchers
- Delivery notes, 4x6 shipping labels and bulk printing
- GSTIN (GST number) field on the cart page
Pro
Unlimited documents
$9.99/30 days
- GSTR-1 and IFF files, GSTR-3B tables and GSTR-9 workings
- Everything in Free, plus unlimited documents
- Invoices emailed to customers as issued, from your own domain
- Ten invoice layouts to choose from
- Your logo, signature and UPI details on every document
- Buyer GSTINs checked on the GST portal, with their registered name
- GST calendar and due-date reminders
Files your GSTR-1
Scale
Everything in Pro, and filing
$19.99/30 days
- File your GSTR-1 on the GST portal from inside Shopify
- Everything in Pro
- Unlimited GST portal calls
- Auditor access: a read-only link for your CA, with no Shopify login needed
Stores installed before the plans began keep everything they had, free, for good.
Savings
What you would save in a year.
Put in your own numbers. Most GST invoice apps price by the order. Scale has no order limit, and files your GSTR-1 from inside Shopify.
- A GST invoice app at your size
- $29.26 a month, ₹33,708 a yearThe average of 7 GST invoice apps on the Shopify App Store.
- AppSaaz Scale, with GSTR-1 filed from Shopify
- $19.99 a month, ₹23,028 a year
- You keep on the app
- ₹10,680 a year
- Your CA's fee for monthly GST returns
- ₹30,000 a yearScale files GSTR-1 today. Filing GSTR-3B from the app too is in its pilot this month, October 2026.
- Together, once both returns are filed from the app
- ₹40,680 a year
At this size other apps cost about the same as Scale, or less. Scale is for filing from Shopify; for invoices alone, Free covers 100 documents a month and Pro is $9.99 with no limit.
Listed monthly prices on the Shopify App Store on 3 Oct 2026, for the plan each app needs at your order count; before GST. $1 = ₹96 (2 Oct 2026).
FAQ
Asked most often.
I already have invoices numbered elsewhere. Will it start from 1?
No. During setup you enter the last invoice, credit note and debit note numbers you issued, and the app continues from there, with no gap and no duplicate.
Does it work if I'm not registered under GST?
A tax invoice needs a GSTIN (GST number), so you need one to issue invoices. If you are on the Composition Scheme, switch the app to Bill of Supply, which is the document you are allowed to issue.
Can it file my return for me?
Yes for GSTR-1, on the Scale plan: the app sends the return to the GST portal and you confirm with the code sent to your phone (EVC). That works for proprietors and partnerships. Companies have to sign with a digital signature, which the app cannot do yet.
For GSTR-3B, Pro lays it out table by table and builds the file; you or your CA file it on the portal.
Does it do e-invoicing (IRN and QR code) or e-way bills?
Not yet. Both are on the plan, and neither is offered until it works end to end.
Is it a replacement for my CA?
No. It produces correct documents and returns from your sales. Input tax credit and anything outside Shopify still need a qualified professional.
What happens to my invoices if I uninstall?
Export everything first: invoices and notes as CSV, PDF or Excel, plus your filing packs. Uninstalling triggers Shopify's data deletion, and shop data is removed after that.