What makes this calculator different
Uses the GST 2.0 structure in force from 22 September 2025 (main slabs 5% and 18%, 40% for specified goods; 0%, 0.25% and 3% for special cases). Add GST to a base price or back it out of an inclusive price, and see the total GST (charged as IGST on inter-state supplies) alongside the equal CGST and SGST halves for intra-state supplies.
Common Questions
GST Calculator FAQs
Common questions about the GST Calculator and how to read its results.
Q01
What are the GST rates in India?
From 22 September 2025 (GST 2.0) the main slabs are 5% (merit rate) and 18% (standard rate), with 40% on specified sin and luxury goods. Special rates of 0% (exempt/nil), 0.25% (rough diamonds and precious stones) and 3% (gold, silver, jewellery) continue. The old 12% and 28% slabs were folded into these. Enter any of these rates in the calculator.
Q02
What is the difference between inclusive and exclusive GST?
Inclusive GST: the displayed price already contains GST (used in B2C retail). Exclusive GST: GST is added on top of the listed price (used in B2B invoicing). Set 'Amount includes GST' to 1 to back GST out of an inclusive price, or 0 to add it on top.
Q03
How is CGST + SGST + IGST split?
Intra-state supply: CGST + SGST split equally (e.g., 18% = 9% CGST + 9% SGST). Inter-state supply: the full amount is IGST (18%). The calculator shows the total GST (the IGST figure) and the equal CGST and SGST halves.
Q04
Is GST applicable on home loans?
GST is NOT applicable on the loan principal or interest. It IS applicable at 18% on the processing fee, legal fee, and valuation charges. For a Rs 50L loan with 1% processing fee, GST adds Rs 9K.
Q05
Can I claim Input Tax Credit (ITC) on personal expenses?
Generally no — ITC is restricted to GST-registered businesses for goods/services used in business. Personal-use purchases do not qualify.
Q06
What is the reverse charge mechanism (RCM)?
Under RCM, the recipient (instead of supplier) pays GST. Common cases: legal services from advocates, services from unregistered suppliers above Rs 5K/day. Most B2C consumers do not encounter RCM.
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