MoneyDock

GST Calculator

Calculate GST (Inclusive/Exclusive) amounts instantly.

₹
Net Amount₹ 10,000
GST (18%)₹ 1,800
Total Amount₹ 11,800

Goods and Services Tax (GST) is India's 'One Nation, One Tax' system that revolutionized indirect taxation. Whether you are a business owner issuing an invoice, a freelancer filing returns, or a consumer verifying a bill, getting the GST math right is non-negotiable.

Our calculator handles both Forward Charge (adding tax to base price) and Reverse Calculation (extracting tax from MRP).

GST Exclusive vs Inclusive: The Difference

GST Exclusive

You have a base price (e.g., Factory Cost) and need to add tax on top.

Tax = Price × (GST% / 100)
Total = Price + Tax

GST Inclusive

You have the final MRP and need to remove tax to find the base price.

Base = MRP × [100 / (100 + GST%)]

Current GST Rate Slabs (2025)

GST rates vary by product category. Here is a quick reference:

  • 0% (Nil Rated): Essentials like fresh milk, vegetables, unbranded grains, salt, newspapers.
  • 5%: Household necessities like sugar, tea, spices, medicines, economy class air tickets.
  • 12%: Processed foods, butter, mobiles, business class air tickets.
  • 18% (Standard Rate): Most services (IT, Telecom), computers, CCTV, soaps, hair oil, restaurants.
  • 28% (Luxury/Sin): Automobiles, cement, tobacco, aerated drinks, betting/gambling.

Understanding IGST, CGST, and SGST

GST is split into three components depending on the location of the buyer and seller:

  • Intra-State (Same State): Tax is split equally between Center (CGST) and State (SGST). E.g., on an 18% item, 9% is CGST and 9% is SGST.
  • Inter-State (Different States): The entire tax is collected by the Center as IGST (Integrated GST).

Frequently Asked Questions

Who needs to register for GST?

Any business with an annual turnover exceeding ₹40 Lakhs (for goods) or ₹20 Lakhs (for services) must mandatory register for GST. For e-commerce sellers, registration is mandatory regardless of turnover.

What is Input Tax Credit (ITC)?

ITC is the backbone of GST. It allows businesses to reduce the tax they have already paid on inputs (purchases) from the tax they have to pay on output (sales). This prevents the 'tax on tax' cascading effect.