GST Return JSON Builder
From FreeFree JSON BuilderSee fees
Build GST return JSON files with our free online tool. Create GSTR-1 and GSTR-3B JSON templates for offline filing and bulk uploads on the GST portal.
- Free Tool
- Free
- JSON Templates
- JSON
- Offline Filing
- Offline
- Free GST JSON builder
- GSTR-1 and GSTR-3B supported
- Offline filing ready
- No signup needed
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Key facts
The key facts, in one place
Everything a founder usually has to piece together from five different pages, in one place.
- GSTR-1
- Outward Supplies
- Monthly/Quarterly filing
- GSTR-3B
- Monthly Summary
- Monthly summary return
- JSON Format
- GSTN Standard
- Government format
- Offline Filing
- Supported
- Upload JSON on GST portal
- Free
- Yes
- No cost for the tool
What is GST Return JSON Builder?
GST Return JSON Builder is a tool that helps taxpayers generate JSON files for filing GST returns (GSTR-1, GSTR-3B) on the GST portal. The GST portal allows taxpayers to upload JSON files for return filing, and our tool helps you generate correctly formatted JSON files.
This is useful for: (1) Offline filing - prepare your return offline and upload, (2) Bulk filing - handle large volumes of invoices efficiently, (3) Error reduction - ensure the correct JSON format before uploading, (4) Bookkeepers and CAs who need to generate GST return data for multiple clients.
The JSON format follows the GSTN (GST Network) schema. It includes tables for B2B invoices, B2C invoices, credit/debit notes, exports, advances received, and other transaction types.
Bizeneed visual guide
GST Return JSON Builder
Build GST return JSON files with our free online tool. Create GSTR-1 and GSTR-3B JSON templates for offline filing and bulk uploads.
- 1Understand requirement
- 2Prepare documents
- 3Complete filing
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Eligibility
Who needs a GST Return JSON Builder?
- Businesses with large volumes of invoices
- GST practitioners filing returns for multiple clients
- Accountants who want to verify GST data before filing
- Businesses preferring offline filing approach
- Anyone wanting to validate GST return data format
Documents
Documents Required
2 required · 2 if applicable
Common to every entity
- Invoice data (sales, purchases)Required
- GSTIN detailsRequired
- HSN codes for goodsIf applicable
- SAC codes for servicesIf applicable
Process
How to Build GST Return JSON
Enter Invoice Data
Enter B2B, B2C, export, and other invoice details. The tool formats the data according to GSTN schema.
Generate JSON File
The tool creates a JSON file that matches the GSTN schema for GSTR-1 or GSTR-3B, ready for upload.
Upload to GST Portal
Log in to the GST portal, select the relevant return period, and upload the JSON file. Review the data before submission.
Timeline
GST Return Filing Timeline
- Ongoing
Collect Invoice Data
Gather all invoices for the return period.
- 11th of Month
GSTR-1 Due Date
File GSTR-1 (outward supplies) by the 11th (QRMP filers: 13th of the month after the quarter).
- 11th-20th
GSTR-2B/3B
Check GSTR-2B and prepare GSTR-3B.
- 20th of Month
GSTR-3B Due
File GSTR-3B (summary return) by the 20th.
Pricing
Pricing
Most popular
Free JSON Builder
Create GST JSON templates
Free
- GSTR-1 JSON builder
- GSTR-3B JSON builder
- Free to use
GST Filing Service
Expert GST return filing
From Rs. 499/month + GST
- Monthly GSTR-1 & GSTR-3B
- CA-reviewed filings
- ITC reconciliation
- GST notice handling
Prices exclude GST. GST at the applicable rate is added to your invoice.
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Benefits
Benefits of Using Our JSON Builder
Accuracy
- Ensure correct JSON format for GSTN upload.
Efficiency
- Handle large volumes of invoices efficiently.
Offline Preparation
- Prepare your return offline without being on the portal.
Why Bizeneed
Why Choose Bizeneed?
- Free GST Return JSON builder
- GST filing services for all business types
- Expert CA support
FAQ
Frequently asked questions
You can file GST returns using JSON by: (1) Prepare the JSON file using our builder, (2) Log in to the GST portal, (3) Navigate to Returns > GSTR-1/GSTR-3B, (4) Upload the JSON file, (5) Review the data, (6) Submit and E-verify.
Written by Bizeneed Research Team, GST Compliance Experts
Last updated 2026-09-06
JSON schema is based on GSTN specifications. Verify with latest updates.
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