GST Calculator
Our free online GST calculator simplifies tax computations for Indian business owners, freelancers, and accountants. Easily calculate Goods and Services Tax (GST) for any amount using official Indian tax slabs of 5%, 12%, 18%, and 28%. Toggle between GST-inclusive (extract tax from total) and GST-exclusive (add tax to base price) calculations with instant split breakdowns for CGST (Central GST), SGST (State GST), and IGST (Integrated GST). Designed specifically for invoice preparation, filing tax returns, and auditing vendor bills without complex spreadsheet formulas.
How to Use GST Calculator
Enter Amount
Type amount in Rupees.
Select Rate
Choose GST rate.
Add or Remove
Add GST or extract from inclusive price.
View Breakdown
See CGST, SGST/IGST split.
Who Uses GST Calculator?
Small business owners, CAs, freelancers, shopkeepers across India. E-commerce sellers on Amazon/Flipkart. GST return filers verifying splits.
Why Use Our GST Calculator?
All GST rates: 5%, 12%, 18%, 28%, custom
CGST/SGST/IGST auto breakdown
Add or remove GST
Free unlimited, no login
Frequently Asked Questions
What are the current GST rates in India?
India has four main slabs: 5% (essentials), 12% (standard), 18% (most services/goods), 28% (luxury/sin goods). Some items have 0% GST.
What is the difference between CGST, SGST, and IGST?
CGST + SGST apply to intra-state transactions (each half the rate). IGST applies to inter-state transactions (full rate).
How to calculate GST on Rs 1000 at 18%?
GST = Rs 1000 x 18% = Rs 180. Total = Rs 1180. Intra-state: CGST Rs 90 + SGST Rs 90. Inter-state: IGST Rs 180.
How to remove GST from inclusive price?
Base Price = Inclusive Price x 100 / (100 + GST Rate). Rs 1180 inclusive of 18% GST: Base = 1180 x 100/118 = Rs 1000.
Is this calculator free for commercial use?
Yes, 100% free for personal and commercial use. Small businesses, CAs, and freelancers can use it unlimited times.