GST & Taxation

Practical GST & Taxation — Hands-on module

Configure GST, create tax-ledgers, prepare GST invoices, manage returns, RCM, credit/debit notes and learn e-invoice basics with real-world examples.

Time: 6–8 hours Jump to Labs
GST overview

Why GST matters

GST simplifies indirect taxation but requires accurate invoice-level compliance. This module is focused on practical tasks you’ll perform in accounting software and how they reflect on filings. You’ll also learn about threshold limits, exemptions, composition scheme, and penalties for non-compliance.

Configure GST & Tax Ledgers
  1. Enable GST module: Enter GSTIN, state, and place of supply rules.
  2. Create Tax Ledgers: CGST, SGST, IGST and Cess with clear naming.
  3. Map Tax Rates: Link ledgers to rate slabs and product/service categories.
  4. HSN / SAC: Add HSN/SAC codes on product/service masters for compliance.
  5. Compliance Settings: Enable auto-calculation of GST in invoices and link with e-way bill configuration.
Tip: For interstate supplies IGST applies. For intrastate, split between CGST & SGST. Ensure correct place of supply.
Quick checklist
  • GSTIN validated
  • Correct state mapping
  • Tax ledgers created
  • HSN/SAC codes added
  • Auto-calculation enabled
GST Invoice Types & Creation
B2B Invoice (Taxable)

Show HSN, tax breakup and GSTINs for both parties.

Invoice #INV1001
Date: 12-Aug-2025
Buyer: XYZ Pvt Ltd (GSTIN: 27XYZDE6789H1Z2)
Items: Supply — ₹50,000
Tax: CGST 9% ₹4,500 + SGST 9% ₹4,500
Total: ₹59,000
B2C Invoice (Retail)

Simplified format for consumers; show tax where applicable.

Invoice #INV1002
Date: 13-Aug-2025
Buyer: Retail Customer
Items: Goods sold — ₹2,000
GST 18%: ₹360
Total: ₹2,360
Always capture HSN/SAC and tax breakup on B2B invoices for proper reconciliation. For exports, ensure LUT/Bond details are included.
Returns, RCM, Credit & Debit Notes
Returns Overview

Know which returns (GSTR-1, GSTR-3B, annual) you need to file and reconcile sales before filing. Learn about due dates, late fees, and input tax credit rules.

Reverse Charge Mechanism (RCM)

When the recipient pays tax — common for imports and notified supplies. Record correctly to avoid mismatches. Don’t forget to claim ITC for RCM payments.

Credit / Debit Notes

Reference original invoice, explain reason and adjust taxable value in your returns. Common reasons include goods returned, price changes, or clerical errors.

E‑Invoice Basics

E‑invoice (IRP) applies beyond turnover thresholds. Generate IRN & QR after submitting JSON to IRP. Keep signed JSON for audit trail.

  1. Prepare invoice JSON per schema with seller, buyer, item, tax blocks.
  2. Submit to IRP via software to get IRN & signed QR code.
  3. Store IRN & signed JSON for compliance.
Note: Thresholds change. Verify the current rules before enabling e‑invoicing for a company. As of 2025, businesses above ₹5 crore turnover must comply.

Frequently Asked Questions

GST (Goods and Services Tax) is a single indirect tax system replacing multiple taxes like VAT, service tax, and excise duty.
It was introduced to simplify taxation, eliminate cascading of taxes (tax on tax), and create a unified market across India.

  • CGST – Central Goods and Services Tax, collected by the central government.
  • SGST – State Goods and Services Tax, collected by the state government for intra-state sales.
  • IGST – Integrated Goods and Services Tax, collected by the central government for inter-state sales.

In RCM, the buyer (recipient of goods/services) is liable to pay GST instead of the seller.
Example: Services taken from a lawyer or import of services from abroad.

GST returns are filed online using the GST portal. Common returns include:
- GSTR-1: Outward supplies (sales)
- GSTR-3B: Summary of sales, purchases, and tax liability
- GSTR-9: Annual return
- GSTR-9C: Reconciliation statement (for audits)

An e-invoice is a digital invoice authenticated by the GST portal.
Businesses with turnover above the government-specified threshold (currently ₹10 crore and above) must generate e-invoices for B2B transactions.

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