What are the standard GST rates in India?

Five slabs: 0% (exempt), 5%, 12%, 18%, 28%. Most everyday services attract 18%; essential goods 0/5%; luxury goods 28% + cess. The calculator handles all five slabs.

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). The calculator does both.

How is CGST + SGST + IGST split?

Intra-state supply: CGST + SGST split equally (e.g., 18% = 9% CGST + 9% SGST). Inter-state supply: full amount as IGST (18%). The calculator surfaces both splits.

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.

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.

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.

Folio 29 · GST Calculator

GST Calculator

Reviewed by Jay Patel· Last reviewed: 01 Aug 2026

Jay Patel

Co-Founder & Chief Loan Advisor

Calculate GST breakup on any amount.

What makes this calculator different

All 5 GST slabs handled (0/5/12/18/28%); reverse-calculate the pre-GST base from the inclusive price; CGST + SGST split (intra-state) vs IGST (inter-state) view for B2B invoicing alignment.

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