GST Calculator (Add/Remove GST)

Calculate GST instantly. Add GST to base price or remove GST from MRP. Supports all GST slabs — 5%, 12%, 18%, 28%. Get CGST + SGST or IGST breakup.

GST Calculator — Add or Remove GST

Add GST to base price or remove GST from MRP

Calculation mode
Base price (excl. GST) Rs 10,000
Rs 100Rs 10L
Rs
GST rate
0%28%
%
Total (incl. GST)
---
at 18% GST
Base price
---
excl. GST
GST amount
---
CGST + SGST
CGST (9%)---
SGST (9%)---
IGST (18%)---
Base price vs GST
Base: ---
GST: ---

GST rates per Indian GST law. Verify applicable HSN/SAC code for your goods/services.

GST breakdown by rate
💡
ThriftRupee Insight

Most consumers pay 18% GST on everyday services like telecom, banking, and restaurant bills. On a Rs 10,000 restaurant bill (5% GST), you pay Rs 476 in GST — not Rs 500, because the base price is Rs 9,524. Always reverse-calculate GST from MRP to find the true base price.

GST Calculator — Add or Remove GST Online (2026)

Use this GST calculator to add GST to a base price or reverse-calculate the base price and GST amount from a GST-inclusive MRP. Supports all GST slabs: 0%, 5%, 12%, 18%, and 28%. Instantly shows CGST, SGST (for intra-state) and IGST (for inter-state) breakup.

How to use this GST calculator

To add GST: select "Add GST to price", enter the base price (excluding GST), select the rate — the calculator shows total price, CGST, SGST, and IGST. To remove GST from MRP: select "Remove GST from MRP", enter the inclusive price — the calculator reverse-calculates the exact base price and GST component.

GST slabs in India (2026)

The four GST slabs are 5% (food, transport), 12% (medicines, textiles), 18% (most services, electronics, restaurants above Rs 7,500), and 28% (luxury goods, tobacco, vehicles). Zero-rated items include fresh food, exports, healthcare, and education. Understanding which slab applies is determined by the HSN code (goods) or SAC code (services).

Frequently asked questions

How do I add GST to a price?
To add GST: Total = Base Price × (1 + GST rate/100). For example, base price Rs 1,000 with 18% GST = Rs 1,000 × 1.18 = Rs 1,180.
How do I remove GST from MRP?
To remove GST: Base Price = MRP / (1 + GST rate/100). For example, MRP Rs 1,180 with 18% GST = Rs 1,180 / 1.18 = Rs 1,000 base price, Rs 180 GST.
What are the GST slabs in India?
India has four main GST slabs: 5% (essential goods, food), 12% (processed food, medicines), 18% (most services, electronics), and 28% (luxury goods, vehicles, tobacco). Some items are exempt (0%) — fresh food, healthcare, education.
What is CGST, SGST and IGST?
For intra-state supply, GST is split equally into CGST (Central GST) and SGST (State GST). For inter-state supply, IGST (Integrated GST) applies at the full rate. IGST = CGST + SGST combined.