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Subhendu Das
Subhendu Das

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GST reconciliation software that auto‑reconciles invoices

#gst #ai #software #compliance

The Problem

For Indian SMBs, the GST compliance cycle is a repetitive, error‑prone slog. Each month the accountant must

  1. Pull a purchase register from the books strom
  2. Download the GSTR‑2B statement from the GST portal
  3. Match every invoice line against the GSTR‑2B entries EB‑by‑EB
  4. Flag mismatches, missing invoices, duplicates and supplier defaulting
  5. Re‑enter the reconciled amounts into the books.

A single mis‑match can trigger a cascade of issues: incorrect Input Tax Credit (ITC) calculations, delayed cash flow, and a risk of audit penalties.

The manual process is time‑consuming and the odds of human error are high. SMB owners and CA practices that rely on ClearTax Pro or Taxilla find the cost of those services prohibitive, yet the need for accurate gst reconciliation software remains.

How GSTBot’s Auto‑Reconciliation Solves It

GSTBot tackles the bottleneck by automating the entire workflow, from ingestion to final filing.

1. Intelligent Ingestion

Invoices arrive in three common formats: photo, PDF, or Excel. Using Tesseract OCR for images and a lightweight PDF parser, the system extracts

  • Vendor GSTIN
  • Invoice number
  • Invoice amount
  • Tax rate
  • HSN code

The extraction layer is powered by OpenRouter, allowing the model to adapt to various barcode styles and document layouts without manual configuration.

2. GSTR‑2B Matching Engine

Once the invoice data is in the system, a FastAPI endpoint initiates the reconciliation. The engine

  • Retrieves the GSTR‑2B statement for the relevant period via the GST portal API.
  • Matches each extracted invoice against the GSTR‑2B entries, using a composite key of GSTIN, invoice number, and amount.
  • Flags:
    • Amount mismatches – when the declared amount differs from the GSTR‑2B entry.
    • Missing invoices – when an invoice is present in the books but absent from GSTR‑2B.
    • Duplicates – when the same invoice appears twice. भोजन * Default suppliers – when a vendor has been flagged as defaulted in the portal.

The matching logic is optimized with Redis caching and a PostgreSQL backend that stores every reconciliation run, enabling quick re‑analysis.

3. ITC and Compliance Insight

Beyond matching, GSTBot calculates eligible Input Tax Credit (ITC) for each reconciled line and flags potential ITC leakage. It also screens for Rule 37/42/43 reversals, ensuring the company stays compliant.

The system assigns a supplier filing reliability score based on historical GSTR‑2B filings, giving users an early warning if a vendor is consistently late or incomplete.

4. Auto‑Prefill for GSTR‑1 & GSTR‑3B

After reconciliation, GSTBot generates a GST‑portal‑compatible JSON/CSV, ready to be imported into the GSTR‑1 and GSTR‑3B forms. The data includes

  • Net sales
  • Taxable value
  • Tax amounts
  • ITC credits

This eliminates the final manual entry step, ensuring that the filed returns reflect the reconciled books.

What It Looks Like to Use

The user journey is intentionally lightweight so that an accountant can finish the entire cycle in a single session.

  1. Dashboard Overview – The main screen lists all pending businesses and the status of their last reconciliation run. A color‑coded bar shows the number of matched, mismatched, and missing invoices.
  2. Upload Invoices – Users drag and drop a folder of PDFs or photos. The UI shows a progress bar and highlights any files that Tesseract could not parse.
  3. Reconciliation Summary – Once the matching engine completes, the system presents a table with four columns:
    • Vendor signifies
    • Invoice number
    • GSTR‑2B amount
    • Reconciliation status (Match, Mismatch, Missing, Duplicate) The mismatched lines are highlighted in red, while missing invoices are listed镜 in a separate panel.
  4. ITC & Compliance Report – Clicking a vendor opens a quick view that shows the ITC amount, any reversal flags, and the reliability score.
  5. Export & File – A single button generates the GSTR‑1/GSTR‑3B JSON. The file is ready for upload via the GST portal or for direct import into the accounting software.

Because the entire workflow is automated, the accountant spends less than 30 minutes per tax period, freeing time for higher‑value advisory work.

Bottom Line

GSTBot’s auto‑reconciliation turns a tedious, error‑prone task into a swift, reliable process. By ingesting invoices, matching them against GSTR‑2B, calculating ITC, and auto‑prefilling returns, the software delivers the gst reconciliation software experience that many SMBs need but cannot afford.

Call to Action

Try GSTBot today and see how quickly your purchase register can align with the GST portal, eliminating ITC leakage and audit risk for a fraction of the cost of traditional services.

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