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GST Calculator India

Instantly add GST to any base invoice amount or extract original base costs from GST-inclusive prices. Supports 5%, 12%, 18%, and 28% tax slabs with CGST, SGST, and IGST breakdowns.

₹
₹100₹1,00,00,000

GST Rate

Calculation Mode

Total Amount (with GST)

₹11,800

Net Amount (Excl.)

₹10,000

GST @ 18%

₹1,800

CGST (9%)

₹900

SGST (9%)

₹900

IGST (for inter-state transactions): ₹1,800 @ 18%

GST rates in India are 5%, 12%, 18%, and 28% depending on goods/service category. IGST applies for inter-state transactions.

How Indian GST Calculations Work

The Goods and Services Tax (GST) is a unified destination-based indirect tax system implemented in India. Depending on whether you are preparing an invoice or checking consumer pricing, calculations follow two primary routes:

1. Adding GST (Exclusive Price)

GST = Base × (Rate ÷ 100)
Total = Base + GST

Example: A ₹10,000 base item at 18% GST adds ₹1,800 tax, resulting in a ₹11,800 final billing price.

2. Removing GST (Inclusive Price)

Base = Total ÷ (1 + (Rate ÷ 100))
GST = Total - Base

Example: For a ₹11,800 MRP item at 18% GST, the true base price is ₹11,800 ÷ 1.18 = ₹10,000.

Car GST Rates & Compensation Cess in India (2025)

Passenger vehicles in India are taxed under the luxury slab of 28% GST, but also incur an additional GST Compensation Cess based on fuel type, length, and engine size:

Vehicle CategoryBase GSTCompensation CessEffective Total Tax Rate
Small Petrol Cars (<4m, <1200cc)28%1%29%
Small Diesel Cars (<4m, <1500cc)28%3%31%
Mid-Size Cars / Sedans (>4m, <1500cc)28%15%43%
Large SUVs (>4m, >1500cc, GC >170mm)28%22%50%
Electric Vehicles (EVs)5%0%5%
⚡ Why EV Adoption Is Booming: An electric SUV attracts just 5% GST compared to 50% total tax on a petrol/diesel SUV of similar dimensions — translating into tax savings of ₹4 to ₹8 Lakhs on the sticker price!

Frequently Asked Questions

How is GST calculated when adding tax to a base amount?▾
To add GST to an exclusive price: GST Amount = (Base Amount × GST Rate %) ÷ 100. Total Price = Base Amount + GST Amount.
How do you calculate and remove GST from an inclusive price (Reverse GST)?▾
To remove GST from a tax-inclusive price: Base Price = Total Inclusive Price ÷ (1 + (GST Rate % ÷ 100)). The GST portion is then: Total Inclusive Price - Base Price.
What is the difference between CGST, SGST, and IGST in India?▾
For intra-state sales (within the same state), GST is divided equally into Central GST (CGST) and State GST (SGST) — for example, an 18% slab splits into 9% CGST + 9% SGST. For inter-state sales (across state borders), Integrated GST (IGST) is charged at the full 18%.
What is the GST rate on passenger cars and SUVs in India?▾
Cars in India attract a peak base GST rate of 28% plus an additional Compensation Cess ranging from 1% (small petrol cars under 4m) to 22% (large SUVs above 4m with engine >1500cc and ground clearance >170mm), making the effective tax rate up to 50%.
What is the GST rate on Electric Vehicles (EVs) in India?▾
To promote green mobility, the Government of India levies a concessionary 5% GST on electric vehicles with 0% Compensation Cess, compared to up to 50% total tax on internal combustion engine (ICE) cars.
Can salaried car buyers claim Input Tax Credit (ITC) on car GST?▾
Under Section 17(5) of the CGST Act, Input Tax Credit (ITC) on motor vehicles is blocked for general personal use. It is only permitted for registered businesses engaged in passenger transportation, driving schools, or vehicle dealerships.