GST & Sales Tax Calculator
Calculate GST inclusive and exclusive pricing with standard or custom tax slabs.
GST / Sales Tax
Live resultsThe price already includes GST — the tool will pull the tax back out.
Add one row per GST slab. Each row is taxed at its own rate and the results are added together — handy for a mixed invoice or a restaurant bill.
| Slab rate | Taxable value | Base | Tax | Total |
|---|---|---|---|---|
| Add a slab to see the breakdown. | ||||
Value vs tax
How the final amount splits between the value and the tax.
Tax by slab
The tax generated at each rate you entered.
GST breakdown
How to calculate GST
Pick the right mode
Choose GST Inclusive when the price on the bill already includes tax, GST Exclusive to add tax on top of a base price, or Multiple Slabs for a mixed invoice.
Enter the amount and rate
Type the price and select a standard slab such as 5%, 12%, 18% or 28%, or switch to a custom rate for anything unusual.
Split the bill across slabs
In Multiple Slabs mode add a row per rate and amount, then read the per-slab breakdown table under the totals.
Copy or export the breakdown
Copy the readable breakdown for an email or download the slab table as a CSV file for your records.
GST & sales tax calculator — frequently asked questions
An inclusive price already contains the tax — a Rs 11,800 bill at 18% GST contains Rs 10,000 of value and Rs 1,800 of tax, so the tool divides by 1.18. An exclusive price is the value before tax, so the tool multiplies it by 1.18 to reach the amount you actually pay. Most shop displays, menus and Pakistani/Indian retail invoices show inclusive prices.
India’s GST structure uses 0%, 5%, 12%, 18% and 28% slabs, with 3% and 1.5% for gold, rough diamonds and handicrafts and a 0.25% levy on certain goods. Pakistan’s federal GST generally applies standard rates of 5%, 16% and 18%, with reduced rates on essentials and higher rates on luxury and non-essential items. The rate buttons in this tool cover the slabs most people meet; always confirm the exact rate on your invoice.
Add one row for each GST rate and the amount that falls under it. Each row is taxed at its own rate and the tool adds up the base value, the tax and the grand total, while also showing the blended effective rate across the whole invoice. Tick “Amounts already include GST” if the numbers you typed are the gross amounts shown on the bill.
Yes. The tool defaults to Pakistani Rupees (Rs) and also supports USD, EUR, GBP, INR, AED, SAR, CAD and AUD, so you can price the same invoice for a customer in another country. The currency only changes the display — the percentage maths is identical.
Related Finance Tools
EMI & Loan Calculator
Monthly EMI, interest breakdown and a full amortisation schedule with charts.
Open toolSIP & Investment Calculator
Project wealth growth from systematic investment plans with monthly compounding.
Open toolCompound Interest Calculator
Compute compound growth with periodic contributions and any compounding frequency.
Open toolGST & Sales Tax Calculator
Calculate GST inclusive and exclusive pricing with standard or custom tax slabs.
Open toolDiscount & Savings
Find the discounted price, your savings and the final bill with promo and tax rates.
Open tool