Quick GST Calculator

Calculate GST amounts instantly for your business transactions. Choose your GST rate and enter the amount to get detailed calculations.

0.25%
3%
5%
12%
18%
28%
40%
Amount Excluding GST
Amount Including GST

Calculation Results

Base Amount (Excluding GST): ₹0.00
GST Amount (@18%): ₹0.00
Total Amount (Including GST): ₹0.00
GST Breakdown (Intra-state vs Inter-state):
CGST — Central GST (intra-state): ₹0.00
SGST/UTGST — State/UT GST (intra-state): ₹0.00
IGST — Integrated GST (inter-state only): ₹0.00

💡 Use CGST + SGST for sales within the same state. Use IGST for sales across state borders.

Understanding GST in India

Goods and Services Tax (GST) is a comprehensive indirect tax levied on the supply of goods and services in India. It replaced multiple cascading taxes charged by the central and state governments.

📊 Real-Life Example

Scenario: You're buying a laptop worth ₹50,000 with 18% GST.

Calculation:

  • Base Price: ₹50,000
  • GST Amount: ₹50,000 × 18% = ₹9,000
  • Total Amount: ₹50,000 + ₹9,000 = ₹59,000

GST Rate Structure in India (from 22 September 2025)

The GST Council cut the number of main slabs to two — 5% and 18% — with a special 40% rate for luxury and sin goods. The 12% and 28% slabs were largely merged into these; 28% (plus compensation cess) continues only for tobacco products for now.

0%
Exempt: fresh fruit & vegetables, milk, paneer, roti, individual life & health insurance
0.25%
Rough diamonds, precious stones
3%
Gold, silver jewellery
5%
Everyday goods: butter, ghee, cheese, packaged food, soap, toothpaste
18%
Standard rate: most goods & services, small cars, ACs, TVs, cement
40%
Luxury & sin goods: pan masala, aerated drinks, large cars

GST Ready Reckoner — 5% and 18% on Common Amounts

Amounts are before GST. Within your state, split the GST equally into CGST and SGST; for a sale to another state, charge it all as IGST.

Amount 5% GST Total @ 5% 18% GST CGST + SGST (9% + 9%) Total @ 18%
₹1,000 ₹50 ₹1,050 ₹180 ₹90 + ₹90 ₹1,180
₹5,000 ₹250 ₹5,250 ₹900 ₹450 + ₹450 ₹5,900
₹9,000 ₹450 ₹9,450 ₹1,620 ₹810 + ₹810 ₹10,620
₹10,000 ₹500 ₹10,500 ₹1,800 ₹900 + ₹900 ₹11,800
₹25,000 ₹1,250 ₹26,250 ₹4,500 ₹2,250 + ₹2,250 ₹29,500
₹50,000 ₹2,500 ₹52,500 ₹9,000 ₹4,500 + ₹4,500 ₹59,000
₹1,00,000 ₹5,000 ₹1,05,000 ₹18,000 ₹9,000 + ₹9,000 ₹1,18,000

Frequently Asked Questions

What is 18% GST on ₹50,000? (50000 ka 18% GST kitna hoga?)
18% GST on ₹50,000 is ₹9,000, so the total is ₹59,000.
Within the same state: CGST ₹4,500 + SGST ₹4,500. Sale to another state: IGST ₹9,000.
How do I remove 18% GST from a total amount?
Divide the total by 1.18. Example: ₹59,000 ÷ 1.18 = ₹50,000 base amount, so the GST included is ₹9,000.
What is the difference between CGST, SGST, and IGST?
CGST (Central GST): Collected by the Central Government on intra-state transactions.
SGST (State GST): Collected by the State Government on intra-state transactions.
IGST (Integrated GST): Collected by the Central Government on inter-state transactions.
For intra-state transactions: CGST + SGST = Total GST
For inter-state transactions: IGST = Total GST
How to calculate GST backward (from inclusive amount)?
To find the base amount from GST-inclusive price, use this formula:
Base Amount = GST Inclusive Amount ÷ (1 + GST Rate/100)
Example: If total is ₹1,180 with 18% GST, base amount = ₹1,180 ÷ 1.18 = ₹1,000
What is reverse charge mechanism in GST?
Under reverse charge mechanism, the recipient of goods/services pays GST instead of the supplier. This typically applies to transactions with unregistered dealers, imports, and specific services. The calculation method remains the same - only the liability shifts to the buyer.
Are there any items exempt from GST?
Yes, certain items are completely exempt from GST including fresh fruits and vegetables, unprocessed cereals, milk, curd, natural honey, salt, sindoor, kajal, educational services, and healthcare services. These items don't attract any GST.

GST Calculation Tips for Businesses

  • Keep accurate records: Maintain detailed records of all transactions for GST filing.
  • Understand HSN codes: Classify your products correctly to apply the right GST rate.
  • Input Tax Credit: Claim ITC on business purchases to reduce your GST liability.
  • Timely filing: File GST returns on time to avoid penalties and interest.
  • Use technology: Leverage GST software for accurate calculations and compliance.

GST on Common Goods & Services — Quick Reference

Category Examples GST Rate
ExemptFresh milk, eggs, vegetables, fruits, paneer, roti, individual life & health insurance0%
Precious StonesRough diamonds, uncut precious stones0.25%
Gold & SilverGold, silver, platinum jewellery & bullion3%
Everyday Goods & ServicesButter, ghee, cheese, namkeen, soap, toothpaste, shampoo, bicycles, hotel rooms up to ₹7,5005%
Most Goods & ServicesElectronics, ACs, TVs, small cars, two-wheelers up to 350cc, cement, IT services, telecom18%
Luxury & Sin GoodsPan masala, aerated & sugary drinks, large cars, motorcycles above 350cc40%

* Rates as in force from 22 September 2025. Tobacco products stay at 28% plus compensation cess for now. GST rates change by GST Council decision — always verify the rate for your HSN/SAC code on the CBIC website.

Stop Calculating GST Manually — Let Khata Billing Do It Automatically

Every time you create a GST invoice in Khata Billing, CGST, SGST, and IGST are calculated and applied automatically based on the item, rate, and customer location. No manual calculation. No errors. GST returns ready in one click.

Try Khata Billing Free Create a Free Invoice →

Start Using Khata Billing — 100% Free

GST Billing · Inventory · POS · Payroll · Banking · GST Reports — all in one free app

Sign Up Free → Login