GST Invoice Portal

Professional GST invoicing for your business

Welcome

Create and manage GST invoices. Choose where you want your data to be stored.

☁️ Google Drive / Sheets

Sign in with Google and keep invoices, clients, payments and credit notes connected to your Google Drive and Google Sheets.

Google signup is open to everyone and does not require authorization from G D Singh & Associates.

💻 Browser Local Storage

No signup required. Data is stored locally in this browser on the current device.

This option does not create a file on your computer or phone.

📁 Computer / Phone Folder

Choose a folder or drive on your computer/phone and save the complete GST portal database as a local file. Changes are automatically written to that file.

On supported browsers, you select the folder directly. If folder access is unavailable, the app offers a downloadable backup file instead.

Dashboard

📁 Local Folder Storage

No local folder selected.

The complete portal database is saved in GST-Invoice-Portal-Data.json in the selected folder. This is separate from browser localStorage.

Invoices0
Total Sales₹0.00
CGST₹0.00
IGST₹0.00
Payments Received₹0.00
Outstanding₹0.00

Excel Export Period

The downloaded Excel contains invoice-wise GST data, HSN/SAC-wise Goods/Services data, invoice list and a detailed date-wise GST report. Month-wise and custom date-wise filters apply to the complete export.

InvoiceDateCustomerGSTINTotalPaidOutstandingActions

New Invoice

Invoice Details

Customer

Saved Clients

Items

DescriptionSupplyHSN/SACQtyUnitRateDiscountGST %TaxableCGSTSGSTIGST

Client Master

Save clients directly here or save/update them automatically while creating an invoice.

Saved Clients

ClientGSTINStateAddressOutstandingActions

Payment Received

Payment Receipt History

All recorded receipts
Receipt No.DateClientInvoiceAmountModeReferenceAction

Client Ledger

DateTypeInvoice / ReferenceDebit (Invoice)Credit (Payment)BalanceDetails

Credit Note Entry

Record credit notes against a client/invoice. Credit notes reduce the client's outstanding balance and are included in GST exports.

Credit Note History

Credit NoteDateClientInvoiceTaxableGSTTotalReason

Business Settings

📁 Local Folder Data Storage

Save the portal database as a real file on your computer, external drive, USB drive, or supported phone storage.

No local folder selected.

The browser will ask for folder permission. If direct folder access is unavailable, use the backup download.

Custom Invoice Fields

Add fields such as PO Number, E-Way Bill, Vehicle Number or Delivery Note.

Help

  1. Anyone can use Google signup/login. No prior authorization from G D Singh & Associates is required. You can also use browser-local storage or select a computer/phone folder for file-based local storage.
  2. The app creates a GST Invoice Portal folder and Google Sheets tabs for invoices, clients, payments and credit notes when Google mode is used.
  3. Customer profiles can be saved directly or automatically while making an invoice.
  4. Outstanding is calculated from invoices minus payments received minus credit notes.
  5. Client ledgers can be filtered, exported to Excel/PDF and shared.
  6. GST exports support all invoices, month-wise and custom date-wise downloads, including invoice-wise and HSN/SAC-wise Goods/Services data.
  7. State and tax calculations use the selected Indian State/UT. Intra-state supplies use CGST plus SGST/UTGST as applicable; inter-state supplies use IGST.

This is a browser application. It does not collect Google passwords or client secrets. Folder-based local storage uses the browser File System Access API where supported; otherwise a JSON backup download is provided.