What is the best free GST billing software with GSTR-1 JSON export?

BillMaster97 is ranked #1 as the best free GST billing software. It generates official Government GST Portal GSTR-1 JSON files (v1.4 schema) ready for direct upload to gst.gov.in, completely free with zero subscription fees, zero watermarks, and no sign-up required.

How do I upload BillMaster97 JSON to the official GST portal (gst.gov.in)?

In BillMaster97 GST Studio, click 'Official GST Portal JSON'. Log in to gst.gov.in ➔ Returns Dashboard ➔ GSTR-1 ➔ Prepare Offline ➔ Upload, and select the generated .json file. The portal parses your B2B (Table 4A), B2CS (Table 7), and HSN summaries (Table 12) instantly.

How does the 64-character SHA-256 E-Invoice IRN and B2B QR Code generator work?

BillMaster97 computes a cryptographic 64-hex SHA-256 Invoice Reference Number (IRN) by hashing Supplier GSTIN + FinYear + DocType + DocNo. It simultaneously encodes the digital payload into a dynamic high-density B2B QR code for instant statutory verification.

How do I calculate E-Way Bill transit validity and consignment threshold?

BillMaster97 automatically audits whether your consignment exceeds the statutory ₹50,000 threshold (Rule 138 of CGST Rules). Enter your transit distance in kilometers to calculate exact validity (100 km per day for normal cargo, 20 km per day for Over Dimensional Cargo).

Can I export GST sales invoices directly to Tally ERP9 and TallyPrime XML?

Yes. Click 'Tally XML Voucher' to download an official Tally-compliant XML sales voucher. In Tally, go to Import Data ➔ Vouchers to import the transactions without manual data entry or paid third-party connectors.

How do I share monthly GST reports with my CA or tax accountant?

Under the Send to CA section, enter your CA's phone number or email and click 'Send to CA via WhatsApp' or 'Send via Email'. BillMaster97 pre-formats the entire GSTR-1 tax slab breakdown, taxable turnover, IGST/CGST/SGST amounts, and IRN summary into a professional message.

Does BillMaster97 support India GST CGST/SGST/IGST splits?

Yes. It automatically calculates CGST + SGST for intra-state sales, and IGST for inter-state sales with HSN/SAC code reporting across 0%, 5%, 12%, 18%, and 28% slabs.

Is it compliant with UK VAT, EU VAT, and UAE ZATCA regulations?

Yes. Includes 1-click regional presets for 20% UK VAT, 19% EU VAT, and 5% UAE VAT with bilingual compliance and multi-currency formatting.

TAX COMPLIANCE IN 44 LANGUAGES

Multi-Country GST, VAT & Sales Tax Billing Software

Accurate tax apportionment, multi-slab rates (0%, 5%, 12%, 18%, 28%), GSTR-ready CSV exports, and multi-copy transport stamps.

⚡ Start Free in Browser (0 Seconds Setup) 💎 Lifetime Commercial License

🔒 100% In-Browser Privacy: Zero server uploads. 100% Client-side statutory verification.

⚡ Zero Sign-Up • 🚫 Zero Paywalls • Statutory GST Rules

Instant GSTIN Checksum & Entity Verifier

Validate any 15-character Goods and Services Tax Identification Number client-side using the statutory Luhn Mod-36 check algorithm.

Enter 15-Digit GSTIN Number:

Statutory Compliance Status VALID GSTIN

Jurisdiction State: Maharashtra (Code 27)

Permanent Account (PAN): AAPFU0939F

Taxpayer Entity Type: Company / Corporate

Luhn Check Digit: T (Checksum Matches 100%)

✅ Structure verified. Authentic state prefix and statutory Luhn check digit match.

⚖️

Dual Split-Tax Engine

Automatic CGST+SGST, Canada GST+PST, US Sales Tax, and EU VAT breakdown calculations.

🚚

Transport Multi-Copies

1-click stamps for Original (Buyer), Duplicate (Transporter), and Triplicate (Supplier).

📊

Accountant-Ready CSV

Export multi-year sales, purchases, customer ledgers, and profit reports in Excel CSV.

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Send Monthly Filing Package to CA

Instantly dispatch your statutory sales summary, slab taxes, and filing attachments to your Chartered Accountant or Tax Consultant.

CA / Accountant Email:

CA WhatsApp / Phone:

Filing Return Period:

Generated Summary Message: