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GST Calculator India

Calculate GST amount and final invoice value by adding or removing GST from a price.

Written and reviewed by RupeeKit Editorial TeamReport a correction
Indian small business owner reviewing invoices and packaging costs with a calculator and laptop
Indian small business owner reviewing invoices and packaging costs with a calculator and laptop

Educational estimate only

Results can vary based on company policy, lender terms, tax law, and personal assumptions.

See the Source and methodology section below for details.

📊 Interactive Goods & Services Tax (GST) Calculator

Determine the net price, tax amount, and SGST/CGST/IGST breakdown under Indian GST rules. Use predefined tax slabs or input a custom tax rate.

1. Base Amount & Mode

Calculation Type

2. GST Rate & Category

Classification Details:Capital goods, IT services, electronic items, restaurants, hair oil, toothpaste, and standard services.

3. Supply Type (Tax Split Rules)

Location of Transaction

Both buyer and seller are located in the same State/UT. Taxes are shared equally between Central and State governments.

Calculation Results

Total Final Amount (Gross)

₹11,800.00

Base Price (Net)

₹10,000.00

Total GST Tax (18%)

₹1,800.00

RupeeKit GST Invoice

Tax Breakdown Receipt

Draft
Items Subtotal (Base Cost)₹10,000.00
CGST (Central Tax) @ 9.00%₹900.00
SGST (State Tax) @ 9.00%₹900.00
Total Invoice Amount₹11,800.00
Composition Analysis
Base: 84.7%
CGST: 7.6%
SGST: 7.6%

India GST Rate Structure & Slabs

GST SlabClassificationTypical Included Items / Services
0%Essential / Nil-rated or ExemptFresh fruits, vegetables, fresh milk, flour, salt, bread, and other essential/exempt items.
5%Common Goods/ServicesSugar, tea, coffee, edible oil, domestic LPG, coal, life-saving drugs, and basic services.
12%Standard Goods/ServicesButter, cheese, ghee, cell phones, processed food, business class air tickets, and construction services.
18%Standard Goods/ServicesCapital goods, IT services, electronic items, restaurants, hair oil, toothpaste, and standard services.
28%Higher-rate Goods/ServicesACs, refrigerators, automobiles, cement, betting, commercial goods, and other high-rate goods.

⚠️ Educational Estimate Only

This calculator provides basic mathematical estimations based on standard Indian GST rates and slab classifications. Actual GST rates, exemption rules, reverse charge mechanism (RCM) applicability, input tax credit (ITC) eligibility, cess additions, and local state splits may vary significantly depending on the exact HSN (Harmonized System of Nomenclature) or SAC (Services Accounting Code) code, industry guidelines, and specific government notifications. Please consult a qualified tax professional or certified chartered accountant to verify tax rates before taking business decisions.

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GST Calculator India Quick Answer

Quick Answer

How does the GST Calculator India work? It estimates GST amount, CGST estimate, and SGST estimate from inputs such as Taxable amount and GST rate using the formula shown on this page.

Formula

GST amount is taxable amount multiplied by GST rate.

Example

For ₹10,000 taxable value and 18% GST, GST is ₹1,800 and final value is ₹11,800.

Educational estimate only. RupeeKit does not provide personalized financial, tax, legal, investment, or loan advice.

Answer Engine Summary

This calculator estimates GST amount, CGST estimate, SGST estimate, and Final amount with GST using Taxable amount and GST rate. GST amount is taxable amount multiplied by GST rate. Results are educational estimates only and should be verified with official records, lender statements, payroll data, or filing utilities where applicable.

Formula used

GST amount is taxable amount multiplied by GST rate. For intra-state examples, CGST and SGST are generally split equally.

Example calculation

For ₹10,000 taxable value and 18% GST, GST is ₹1,800 and final value is ₹11,800.

Source and methodology

Last reviewed: July 2026

This calculator uses the formula and assumptions described on this page. GST amount is taxable amount multiplied by GST rate. Values are calculated in-browser from user-entered inputs and are not saved by default. Verify tax, regulatory, lender, scheme or product rules with the relevant official source where applicable.

Educational estimate only. RupeeKit does not provide personalized financial, investment, legal, tax or loan advice.

Related calculators and guides

You can cross-check this estimate using: salary in-hand calculator, Old vs New Tax Regime Calculator, 80C deduction calculator, EMI calculator, ITR-2 filing guide, emergency fund guide.

When this tool is useful

  • When you want a fast estimate before making a financial or salary decision.
  • When you want to compare different assumptions in seconds.
  • When you want to understand the formula behind the result.

Calculator Facts

TopicRupeeKit explanation
Calculation typeFormula-based educational estimate from user-entered values
Key inputsTaxable amount and GST rate
Primary outputsGST amount, CGST estimate, and SGST estimate
Method referenceGST amount is taxable amount multiplied by GST rate.
PrivacyValues are processed in the browser and are not saved by default.

FAQs

Does this calculator handle IGST?

The main GST amount is valid for both cases. CGST/SGST split is shown as a simple intra-state estimate.

Can GST rates change?

Yes. Always verify applicable GST rate for your product or service from official guidance or a tax professional.