📌 Mnemonic for GST Features – "4-TIER GST" This covers types, rates, compliance, and excluded items: 1️⃣ 4 Types of GST → C-S-I-U → CGST, SGST, IGST, UTGST. 2️⃣ 5 Tax Slabs → 0-5-12-18-28% (+ special rates: Gold 3%, Real Estate 1%-5%). 3️⃣ Threshold for GST Registration → ₹40 lakh (Goods), ₹20 lakh (Services), ₹10 lakh for NE states. 4️⃣ Destination-Based Tax → GST collected where goods/services are consumed. 5️⃣ Input Tax Credit (ITC) → Eliminates double taxation. 6️⃣ Regular GST Filing → GSTR-1 (Sales), GSTR-3B (Summary), GSTR-9 (Annual). 7️⃣ Excluded Items → "P-D-A-E" (Petrol, Diesel, Alcohol, Electricity). ✅ Trick: "C-S-I-U Slabs, 40-20 Rule, PDAE Excluded!"