Last updated October 23, 2026.
Which one do you need?
If the amount is in PKR and you want the GST label plus the reminder to confirm the rate, use Pakistan GST. If the amount is any other currency, or you do not want a Pakistan label, use sales tax. Both pages calculate the rate you type. Neither looks up a current FBR rate.
Side by side
| Tool | Use when | Not for | Published example |
|---|---|---|---|
| Pakistan GST Calculator | The amount is in PKR and you want GST added or removed at a rate you supply. | Do not treat the result as an FBR filing. Confirm the rate on the FBR site before you rely on it. For a generic currency, use sales tax. | If you enter 10,000 PKR and 18% exclusive, GST is 1,800 and the total is 11,800. The same 11,800 inclusive returns a 10,000 base. Replace 18% with the rate you verified. |
| Sales Tax Calculator | You want to add or remove a tax rate in whatever currency you are using. | It is not a Pakistan GST filing tool. Use the GST page when the label and the PKR context matter. | The math matches the GST example: 10,000 at 18% exclusive becomes 11,800. Only the label changes. |
Method and assumptions
Exclusive: tax = amount × rate ÷ 100, total = amount + tax. Inclusive: base = amount ÷ (1 + rate ÷ 100), tax = amount − base. Sales tax calls the same function as GST. An 18% figure below is an example you might type. It is not a statement of the current FBR rate.
The same numbers, different questions
Use the same numbers on both pages. Enter 10,000 and 18% as exclusive. Tax is 1,800 and the total is 11,800. Enter 11,800 and 18% as inclusive. The base comes back to 10,000 and the tax is again 1,800. Sales tax runs the same function. The outputs match because the arithmetic matches. The 18% figure is an example you might type. It is not a statement of the current Federal Board of Revenue rate.
The pages diverge in the warning around the number, not in the number. Pakistan GST tells you the amount is being treated as PKR and that you must confirm the rate before a filing. Sales tax does not claim a country. If you need a generic receipt in dollars or another currency, the sales tax page is the one that matches the label. If you need a PKR working figure while you check FBR, the GST page is the one that matches the label.
A second pass with a different rate shows the same point. Change 18% to a rate you copied from FBR and both calculators move together. If they ever disagree, one of the inputs changed: inclusive versus exclusive, or a rounded rate. The tools do not store a rate table, and this site does not maintain one.
Filing is a separate step from the arithmetic. A result of 1,800 on 10,000 does not say which schedule, which HS code, or which buyer type applies. The GST page is the one that keeps the PKR label and the FBR reminder next to the box. The sales tax page is the one to use when the currency or the country is different and you only need the percent added or removed. Use the guide linked below for a longer Pakistan context, and treat that guide as background, not as a rate you can file from.
Common mistakes
- Treating the sample 18% as the rate you should file. You type the rate. Confirm it on fbr.gov.pk.
- Running an inclusive total through the exclusive mode and reading the larger tax as an official assessment.
- Using the sales tax page for a Pakistan filing because the math matched once. The filing context and the PKR label are on the GST page. The math is still only as current as the rate you typed.
- Adding GST on top of an amount that already includes GST. That double-counts the tax.
Pakistan GST Calculator
The amount is in PKR and you want GST added or removed at a rate you supply.
Do not treat the result as an FBR filing. Confirm the rate on the FBR site before you rely on it. For a generic currency, use sales tax.
Example. If you enter 10,000 PKR and 18% exclusive, GST is 1,800 and the total is 11,800. The same 11,800 inclusive returns a 10,000 base. Replace 18% with the rate you verified.
Sales Tax Calculator
You want to add or remove a tax rate in whatever currency you are using.
It is not a Pakistan GST filing tool. Use the GST page when the label and the PKR context matter.
Example. The math matches the GST example: 10,000 at 18% exclusive becomes 11,800. Only the label changes.
Sources and limits
- Federal Board of Revenue — Confirm the rate you type. This site does not store or update an official rate table.
- Disclaimer — Educational arithmetic, not tax advice.
Related guides
Questions
Does the Pakistan GST calculator know today’s FBR rate?
No. You type the rate. The page tells you to check FBR because a stored rate would go stale.
Can I use the sales tax calculator for PKR?
The arithmetic will match. Use the Pakistan GST page when you want the PKR label and the FBR warning next to the result.