GST Calculator India
Calculate GST for all rates with CGST/SGST/IGST breakdown • Supports inclusive/exclusive amounts
📋 Current GST Rates in India
🧮 GST Calculator
⚡ Quick GST Rates
💰 Amount & Rate
⚙️ Calculation Settings
Amount Type
Inclusive: Amount includes GST
Supply Type
Rounding
📋 Recent Calculations
Your last 5 calculations are saved locally in your browser for quick reference.
💡 GST Calculation Guide & Tips
🧮 How to Calculate GST
GST Exclusive (Add GST):
- GST Amount = Base × (Rate ÷ 100)
- Total = Base + GST Amount
- Example: ₹1000 + 18% = ₹1000 + ₹180 = ₹1180
GST Inclusive (Remove GST):
- Base = Total ÷ (1 + Rate ÷ 100)
- GST Amount = Total - Base
- Example: ₹1180 ÷ 1.18 = ₹1000 base, ₹180 GST
🏢 CGST vs SGST vs IGST
Intra-state Supply (Same State):
- CGST = GST ÷ 2 (Central Government)
- SGST = GST ÷ 2 (State Government)
- Example: 18% GST = 9% CGST + 9% SGST
Inter-state Supply (Different States):
- IGST = Full GST Rate (Central Government)
- Example: 18% GST = 18% IGST
📊 GST Rate Categories
0% (Exempt): Essential items like rice, wheat, milk
5%: Basic necessities - sugar, tea, coffee, spices
12%: Processed foods, medicines, computers
18%: Most goods and services, electronics
28%: Luxury items, automobiles, tobacco
Special Rates: Some items have rates like 0.25%, 3%, 7.5%
💼 Business Tips
- Invoice Clarity: Always mention if prices are inclusive or exclusive of GST
- Rounding: Most businesses round to nearest rupee for invoicing
- Input Tax Credit: Registered businesses can claim GST paid on purchases
- Compliance: File GSTR returns on time to avoid penalties
- Record Keeping: Maintain proper GST invoices and receipts
📝 Practical GST Examples
Example 1: Restaurant Bill
Scenario: Food bill of ₹500 + 5% GST
Calculation:
- Base Amount: ₹500
- GST (5%): ₹500 × 0.05 = ₹25
- Total Bill: ₹500 + ₹25 = ₹525
- CGST: ₹12.50, SGST: ₹12.50
Example 2: Electronics Purchase
Scenario: Laptop priced at ₹59,000 (GST inclusive)
Calculation:
- Total Amount: ₹59,000
- Base: ₹59,000 ÷ 1.18 = ₹50,000
- GST (18%): ₹59,000 - ₹50,000 = ₹9,000
- CGST: ₹4,500, SGST: ₹4,500
💡 Pro Tips for Businesses
Pricing Strategy
- Display prices clearly as inclusive or exclusive
- Consider psychological pricing (₹999 vs ₹1000)
- Factor GST into profit margin calculations
Compliance
- Register for GST if turnover > ₹20L (₹10L for special states)
- Issue proper GST invoices with GSTIN
- File returns monthly/quarterly as applicable
Record Keeping
- Maintain digital copies of all GST invoices
- Track input tax credit claims
- Use accounting software for automation
📖 How to Use This GST Calculator
Step 1: Enter Amount
- Type the amount in the input field
- Use quick presets (₹1K, ₹5K, etc.) for common amounts
- Amount can be with or without GST
Step 2: Select GST Rate
- Choose from standard rates (0%, 5%, 12%, 18%, 28%)
- Use quick rate buttons for faster selection
- Select "Custom" for special rates like 3% or 7.5%
Step 3: Configure Settings
- Check "GST Inclusive" if amount already includes GST
- Choose Intra-state (CGST+SGST) or Inter-state (IGST)
- Select rounding preference (paise or nearest rupee)
Step 4: Get Results
- Click "Calculate GST" or enable auto-calculate
- View base amount, GST breakdown, and total
- Copy, share, or download results as needed
Related Tools: Income Tax Calculator • EMI Calculator • Currency Converter • FD Calculator
Quick demo
Video opens from YouTube in a privacy-enhanced player.
How this GST calculator works
Enter an amount and choose a GST rate (5%, 12%, 18%, 28% or custom). Select whether the amount is GST-inclusive or exclusive, and whether the supply is intra-state (CGST+SGST) or inter-state (IGST). For GST-inclusive, the base is back-calculated as amount � (1 + rate), and GST is the difference between total and base. For GST-exclusive, GST is base � rate and total = base + GST. When intra-state is chosen, GST splits equally into CGST and SGST; for inter-state, IGST applies.
Examples
Inclusive 18%: Amount ?1,180 inclusive . base = 1180/1.18 = ?1,000; GST = ?180 (CGST ?90 + SGST ?90, or IGST ?180).
Exclusive 12%: Base ?2,000 exclusive . GST = 2000 � 12% = ?240; total = ?2,240.
You can round to the nearest rupee for invoices or keep paise for precise calculations. Share a link or export CSV for records.
FAQs
CGST/SGST vs IGST?
Intra-state supplies split GST into equal CGST and SGST components. Inter-state supplies levy IGST. This is a display split and doesn�t change the total.
Which rates are common?
Many essentials are 0% or 5%; services and goods often fall under 12% or 18%; luxury items may be 28%. Always verify the applicable rate for your item/service.
Is this a filing tool?
No. It�s a quick calculator to estimate base/GST/total for quotes and invoices; it does not file returns.