Instantly add GST to any base price or strip GST from an inclusive total. Covers all Indian GST slabs with a clear CGST + SGST split for your invoices.
Try:
₹
Base amount (excl. GST)—
GST amount—
Total (incl. GST)—
Transaction:
CGST (9%)
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SGST (9%)
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IGST (18%)
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Find GST Rate
Have an invoice but unsure what GST rate was applied? Enter the base and total to find out.
₹
₹
GST rate applied—
GST amount on invoice—
Invoice Builder
Add multiple line items at different GST rates — get a complete invoice summary with CGST/SGST or IGST breakdown. Settings are saved automatically.
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Transaction:
DescriptionAmountRate
How to use
Choose your mode: Add GST to a base price, or Remove GST from a GST-inclusive total.
Enter the amount — Indian comma formatting adjusts automatically as you type.
Select the applicable GST slab from the dropdown (5%, 12%, 18%, 28%, etc.).
Results appear instantly: base price, GST amount, total, and the CGST/SGST split for intra-state or IGST for inter-state.
To find the GST rate on an existing invoice, scroll to the "Find GST Rate" section and enter the base and total amounts.
Use the Invoice Builder to add multiple line items at different GST rates — add your company name, logo, invoice number, and date.
Click Print / Save as PDF to generate a clean, browser-header-free tax invoice ready for sharing.
Frequently Asked Questions
How do I add GST to a price?
Select "Add GST to amount", enter the base price, and choose your GST rate. The total payable and GST component are shown instantly.
How do I find the original price before GST?
Switch to "Remove GST from total", enter the GST-inclusive amount, and pick the rate. The calculator back-calculates: base = total ÷ (1 + rate/100).
What is the difference between CGST and SGST?
For intra-state transactions, GST is split 50/50 between CGST (Central) and SGST (State). An 18% GST bill shows 9% CGST + 9% SGST. Inter-state transactions use IGST instead.
What are the main GST slabs in India?
The primary slabs are 0%, 5%, 12%, 18%, and 28%. Special rates of 0.25% apply to rough diamonds and 3% to gold/silver. Most services fall under 18%.
If I have a ₹11,800 bill at 18% GST, what was the base price?
Base = 11800 / 1.18 = ₹10,000. GST = ₹1,800 (₹900 CGST + ₹900 SGST). Use "Remove GST" mode to calculate this in one click.
Is GST charged on services?
Yes, GST applies to both goods and services in India. Most services (IT, consulting, telecom) fall under the 18% slab, though healthcare, education, and certain essential services are exempt or zero-rated.
Did you know?
India's GST, introduced on 1 July 2017, replaced over 17 central and state taxes including VAT, service tax, and central excise — one of the largest tax reforms in Indian history.
Over 1.4 crore businesses are registered under GST in India, generating monthly e-way bills and GSTIN-linked invoices that feed into a real-time audit trail.
The composition scheme under GST allows small businesses with turnover up to ₹1.5 crore to pay a fixed percentage (1–5%) instead of the full GST slab rate.