How to File GST Returns Using Zoho Books: A Complete Guide for Indian Businesses (2025)

GST compliance is non-negotiable for Indian businesses. Filing GSTR-1, GSTR-3B, and managing Input Tax Credit reconciliation manually is time-consuming and error-prone, especially when transaction volumes grow. Zoho Books handles all of this natively, without a third-party GST filing tool. Here is exactly how to set it up and use it.

Step 1: Configure Your GST Settings in Zoho Books

• Navigate to Settings → Taxes → GST Settings in Zoho Books
• Enter your GSTIN (GST Identification Number). Zoho Books validates the format automatically
• Select your GST Filing Frequency: Monthly or Quarterly based on your turnover category
• Choose your Accounting Basis: Accrual or Cash, most Indian businesses use Accrual for GST
• Enable E-invoicing if your annual turnover exceeds ₹5 crore. Zoho Books generates IRN from the GST portal automatically

Step 2: Configure Tax Rates and HSN/SAC Codes

• Go to Settings → Taxes → Tax Rates, create rates for GST 5%, 12%, 18%, and 28%
• Enable the 'Intrastate' and 'Interstate' tax types. Zoho Books automatically splits CGST/SGST for intrastate and applies IGST for interstate transactions
• Add HSN codes for goods (minimum 4 digits for turnover above ₹5 crore, 8 digits for exports) or SAC codes for services
• Map each item or service in your item catalogue to its correct HSN/SAC code, this populates automatically on invoices and in GSTR-1

Step 3: Generate and File GSTR-1

• Go to Reports → GST Reports → GSTR-1
• Select the filing period (month or quarter) and review the auto-populated data. B2B invoices, B2C invoices, credit notes, and export invoices are separated automatically
• Click 'Push to GST Portal'. Zoho Books connects directly to the GSTN API and uploads your returns without requiring manual JSON file export and upload
• Review the summary on the GST portal, confirm figures, and submit
• After submission, Zoho Books marks the period as filed and locks the transactions for that period

Step 4: Reconcile Input Tax Credit and File GSTR-3B

• Go to Reports → GST Reports → GSTR-2A Reconciliation. Zoho Books compares your purchase records against what your suppliers have filed, flagging mismatches
• Correct any mismatched invoices before filing GSTR-3B to maximise ITC claims
• Go to Reports → GST Reports → GSTR-3B, review auto-calculated tax liability, ITC available, and net tax payable
• Verify that CGST, SGST, and IGST figures match your GSTR-1 outward supplies minus eligible ITC
• Click 'File GSTR-3B'. Zoho Books submits directly to the GST portal and records the tax payment as an expense in your Books accounts

Step 5: E-Way Bills and E-Invoicing

• E-invoicing (for eligible businesses): When you save an invoice in Zoho Books, it automatically sends the invoice data to the IRP and retrieves the IRN and QR code, no separate tool needed
• E-way bills: Navigate to the invoice, click 'Generate E-Way Bill'. Zoho Books sends the data to the e-way bill portal and attaches the EWB number to the invoice
• Both IRN and EWB numbers appear on the PDF invoice automatically, ensuring you are always compliant during goods dispatch