How do I add GST or VAT to a price?

Multiply the price before tax by the rate. 1,000 plus 18% GST is 1,000 × 0.18 = 180 of tax, so 1,180 in total.

How do I remove GST or VAT from a price?

Divide the price that includes tax by 1 plus the rate. 1,180 including 18% GST is 1,180 ÷ 1.18 = 1,000 before tax, so the tax is 180. Do not just take 18% off the total; that gives the wrong answer.

What are the GST rates in India now?

Since 22 September 2025 the main GST slabs are 5% and 18%, with 40% for a short list of luxury and sin goods, and 0% for exempt items. The old 12% and 28% slabs were folded into these.

When do I charge CGST + SGST and when IGST?

For a sale inside the same state, the GST is split equally into CGST and SGST (18% = 9% + 9%). For a sale to another state it is charged as IGST at the full rate.

What is the VAT rate in the UK?

The standard rate is 20%. A 5% reduced rate applies to things like home energy and child car seats, and many foods, books and children’s clothes are 0%.

Free tool

Add or remove GST, VAT and sales tax

Pick your country, enter one or more amounts and see the net, the tax and the total for each line. Includes the India CGST + SGST split and a printable breakdown.

You get

Net, tax and total per line, tax per rate, CGST + SGST or IGST for India, and a breakdown you can print or save as a PDF.

Sending a bill? Make an invoice with tax.

Country

Your amounts are

Supply

Slabs since 22 Sep 2025 (GST 2.0). 3% applies to gold and silver.

GST breakdown · India

Item	Net amount	Rate %	Net	GST	Total
			₹1,000.00	₹180.00	₹1,180.00

India rates: 0%, 5%, 18%, 40%

Net (before tax): ₹1,000.00
CGST 9% on ₹1,000.00: ₹90.00
SGST 9% on ₹1,000.00: ₹90.00
Total: ₹1,180.00

Each line is rounded to 2 decimals. Rates change: check your tax office’s current rate for your product before you invoice. This is a calculator, not tax advice. Nothing you type leaves your browser.

Why it matters

Tax is easy to get wrong backwards.

Adding tax is one multiplication. Taking it out of a price that already includes it is where most mistakes happen: 18% of the total is not the tax. Line-by-line rounding and the right split for India keep your invoice matching your return.

How do I add GST or VAT to a price?: Multiply the price before tax by the rate. 1,000 plus 18% GST is 1,000 × 0.18 = 180 of tax, so 1,180 in total.
How do I remove GST or VAT from a price?: Divide the price that includes tax by 1 plus the rate. 1,180 including 18% GST is 1,180 ÷ 1.18 = 1,000 before tax, so the tax is 180. Do not just take 18% off the total; that gives the wrong answer.
What are the GST rates in India now?: Since 22 September 2025 the main GST slabs are 5% and 18%, with 40% for a short list of luxury and sin goods, and 0% for exempt items. The old 12% and 28% slabs were folded into these.
When do I charge CGST + SGST and when IGST?: For a sale inside the same state, the GST is split equally into CGST and SGST (18% = 9% + 9%). For a sale to another state it is charged as IGST at the full rate.
What is the VAT rate in the UK?: The standard rate is 20%. A 5% reduced rate applies to things like home energy and child car seats, and many foods, books and children’s clothes are 0%.
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