About Octa GST
What is Octa GST?
Octa GST is a GST compliance software for businesses in India from Blowbits Solutions LLP, serving taxpayers since 2017. It automates the preparation and filing of GST returns such as GSTR-1 and GSTR-3B, and supports special cases including Special Economic Zone (SEZ) units, Input Service Distributors (ISD) and TDS under GST. A key focus is purchase reconciliation: Octa GST uses smart invoice matching and automated tracking of input tax credit for each purchase invoice, including AI-driven GSTR-2B reconciliation across thousands of invoices and workflows for the Invoice Management System (IMS). It also generates e-invoices and e-way bills, offers GST Suvidha Provider (GSP) APIs for integrating external systems, and provides audit reports, a GST notice tracker and on-demand data services. Octa GST says it is trusted by organisations from small businesses to large enterprises.
Who is Octa GST for?
Octa GST is for Indian businesses from small companies to large enterprises, including SEZ units and Input Service Distributors, and the finance teams and advisers who manage their GST compliance.
What type of software is Octa GST?
Octa GST is listed under GST & Compliance.
What are Octa GST's core capabilities?
Octa GST covers regular, special and data-driven GST work. Regular compliance auto-generates GSTR-1 and GSTR-3B and reconciles input credit with GSTR-2B. SEZ compliance automates SEZ invoicing rules with ready GSTR-1 and GSTR-3B reports. ISD compliance automates ITC distribution, generates ISD invoices, reconciles GSTR-6A and auto-generates GSTR-6. TDS under GST tracks deductions and files GSTR-7. E-invoices and e-way bills can be generated in one click, uploaded via the user interface, Excel or API, with historical data fetched. IMS reconciliation lets users bulk accept, reject or keep invoices pending, and GSTR-2B reconciliation matches thousands of invoices to maximise eligible ITC. GSP APIs connect external systems to the government GST system. GST audit reports fetch PAN-level data with analytics, a notice tracker sends daily alerts until closure, and data services provide PAN, GSTIN, MSME, MCA and HSN reports on demand.
- High-speed local database engine that reconciles 50,000+ invoices in seconds with zero browser crash
- Complete data privacy: client financial data remains stored on the local PC, not in third-party clouds
- Advanced multi-parameter fuzzy matching across invoice number prefixes, dates, and rounding fractions
- Integrated Invoice Management System (IMS) actions and GST notice tracking workflows
Answers above are based on Octa GST's website, read on 6 Oct 2026.
- Deployment
- Windows Desktop (Local DB)
- IMS Support
- Native IMS reconciliation actions
- Portal Sync
- Integrated GSP connector
- Data Privacy
- 100% Local PC storage
- Reconciliation Engine
- Multi-rule fuzzy match with custom rules
Who makes Octa GST?
Blowbits Solutions LLP was founded in 2017 in Udaipur to design clean, high-performance tax software. Octa GST is renowned among tax practitioners for its lightweight desktop engine capable of reconciling millions of invoices locally.
What CAs are saying about Octa GST
Octa GST has no reviews on SoftwaresForCA yet.
Screenshots
Key features
- ✓GSTR-1 Direct Filing & Auto-Preparation
- ✓GSTR-1A Amendment Support
- ✓GSTR-3B Auto-Computation & Filing
- ✓GSTR-9 Annual Return Auto-Preparation
- ✓GSTR-9C Reconciliation Statement & Audit Tables
- ✓IFF (Invoice Furnishing Facility) Filing
- ✓CMP-08 Composition Scheme Filing
- ◐ITC-04 Job Work & Other Returns (GSTR-4/5/6/7/8/10/11) — GSTR-4 & GSTR-6
- ✓Automated GSTR-2B/2A Auto-Download & Purchase Register Reconciliation — Yes (Auto 1-Click)
- ✓Fuzzy & Multi-Parameter Invoice Matching (Prefixes, Dates, Rounding)
- ✓Multi-Month & Cross-Financial Year Reconciliation
- ✓Duplicate Invoice & Discrepancy Detection
- ◐Supplier Missing Invoice & Default Communication (WhatsApp/Email) — Excel Report Export
- ✓ITC Eligibility & Ineligibility Classification
- ✓Section 17(5) Blocked Credit Auto-Segregation
- ✓Rule 37 & 37A ITC Reversal Tracking (180-Day & Supplier Default)
- ✓Rule 42 & 43 Capital Goods ITC Reversal Calculation
- ✓ITC Reclaim Tracking (Re-crediting Paid Invoices)
- ✓RCM (Reverse Charge Mechanism) Computation & Liability Push
- ✓Section 50 GST Interest & Late Fee Auto-Calculation
- ✓GST Electronic Ledgers (Cash, Credit, Liability) Auto-Fetch & Reconciliation — Yes (Cash & Credit)
- ✓Direct NIC IRP E-Invoicing Suite (IRN, QR Code, Cancellation & Notes) — Yes (Direct IRP API)
- ✓Automated E-Way Bill Generation, Vehicle Update & Extension
- ◐GST Refund Management (RFD-01 Statement & Export Calc) — Statement Prep
- ◐Departmental Notice Tracking & ASMT-10 / DRC-01 Reply Assistant — Notice Archive
- ◐GST PMT-06 Challan Auto-Generation & Payment Tracking — Challan History View
- ✓Direct GSTN GSP / ASP High-Speed API Integration — Yes (Direct GSTN API & ASP)
- ✓TallyPrime, BUSY & Native ERP 2-Way Sync — Yes (Direct Tally XML Sync)
- ✓Universal Multi-Column Excel / CSV / JSON Flexible Mapper — Yes (Universal Mapper)
- ✓CA Firm Multi-GSTIN & Multi-Client Central Dashboard — Yes (Multi-Client Local)
- ✓Bulk Multi-Client Return Filing & Auto-Fetch Queue — Yes (Bulk Engine)
- ◐Statutory Audit Trail & Local/Cloud Client Data Security — Local Database Security
Pricing
- Starting at ₹6,000 / year (Tax Professional Multi-GSTIN editions available)
Transparent pricing with tiers based on business vs tax professional needs. Software runs locally on practitioner machines, maintaining data privacy while using official GSP channels for seamless portal downloads and return filing.
From the vendor's published pricing as of 12 Sept 2026. Confirm current prices with the vendor.
Limitations to know
- Desktop software requires manual software updates on practitioner laptops
- Remote collaboration between branch offices requires manual file transfer or network sync
- No native cloud portal for end-client login