Sales Tax Remove calculator using USD. Rates are user-entered where laws or local rates can vary.
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Reverse GST Calculator (Singapore)
Sales Tax Remove calculator using SGD. Rates are user-entered where laws or local rates can vary.Country Specific · Locale Tools
Quick answer
If tax-inclusive amount is SGD 1,090 and tax rate is 9%, the pre-tax amount is SGD 1,000 and the tax portion is SGD 90.
Enter your values
0 %40 %
%
Pre-tax amount
SGD 1,000
The amount before tax, tip, or any other adjustment is applied on top.
9% is tax portion
Pre-tax amount
SGD 1,000
Tax portion
SGD 90
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See how the result changes
Each table re-runs this calculator with one value changed and everything else left as it is.
Pre-tax amount by tax-inclusive amount
If tax-inclusive amount goes from SGD 1,090 to SGD 1,640, pre-tax amount changes from SGD 1,000 to SGD 1,504.59 (+50%).
| Tax-inclusive amount | Pre-tax amount |
|---|---|
| SGD 545 | SGD 500 |
| SGD 818 | SGD 750.46 |
| SGD 1,090start | SGD 1,000 |
| SGD 1,640 | SGD 1,504.59 |
| SGD 2,180 | SGD 2,000 |
Pre-tax amount by tax rate
If tax rate goes from 9% to 13.5%, pre-tax amount changes from SGD 1,000 to SGD 960.35 (−4.0%).
| Tax rate | Pre-tax amount |
|---|---|
| 4.5% | SGD 1,043.06 |
| 6.75% | SGD 1,021.08 |
| 9%start | SGD 1,000 |
| 13.5% | SGD 960.35 |
| 18% | SGD 923.73 |
COUNTRY SPECIFIC GUIDE
A quick guide to Reverse GST (Singapore)
Sales Tax Remove calculator using SGD. Rates are user-entered where laws or local rates can vary. Use it to get an accurate pre-tax amount in seconds — free, with no sign-up.
Instant results
See your pre-tax amount the moment you enter your numbers.
Free, no sign-up
Every calculator here is free to use, with no account required.
Accurate & transparent
The same standard formula runs on our server for every calculation.
How to Use the Reverse GST (Singapore) Calculator
1
Enter Tax-inclusive amount
Provide your tax-inclusive amount.
2
Enter Tax rate
Provide your tax rate, in %.
3
View Your Results
Get your pre-tax amount instantly, calculated on our server.
What is Reverse GST (Singapore)?
Sales Tax Remove calculator using SGD. Rates are user-entered where laws or local rates can vary. This country specific tool works out your pre-tax amount instantly, so you don't have to do the math by hand.
“One quick calculation, so you always know your pre-tax amount before you decide.”
What Affects Your Pre-tax amount
Your pre-tax amount depends on the values below.
Tax-inclusive amount
Changing your tax-inclusive amount changes your pre-tax amount.
Tax rate
Changing your tax rate changes your pre-tax amount. Typically between 0 and 40 %.
Example Result
Here's what you can expect from a reverse GST (Singapore) calculation:
- Tax-inclusive amount
- 1090
- Tax rate
- 9 %
- Pre-tax amount
- SGD 1,000
- Tax portion
- SGD 90
Frequently Asked Questions
- How does tax-inclusive amount affect pre-tax amount?
- If tax-inclusive amount goes from SGD 1,090 to SGD 1,640, pre-tax amount changes from SGD 1,000 to SGD 1,504.59 (+50%).
- How does tax rate affect pre-tax amount?
- If tax rate goes from 9% to 13.5%, pre-tax amount changes from SGD 1,000 to SGD 960.35 (−4.0%).
- How to calculate the price before GST (Singapore)?
- Fill in tax-inclusive amount and tax rate in the Reverse GST Calculator (Singapore) above and your pre-tax amount is calculated instantly. Change any value to see how the result responds.
- What does an example reverse GST (Singapore) calculation look like?
- If tax-inclusive amount is SGD 1,090 and tax rate is 9%, the pre-tax amount is SGD 1,000 and the tax portion is SGD 90.
- Is this calculator free to use?
- Yes — every calculator on this site is completely free, with no sign-up or account required.
- How accurate is this calculator?
- It uses the standard formula and calculates on our server for every request, so results are precise for the values you enter.
- Is my data saved anywhere?
- No. Nothing you enter is stored or sent anywhere unless you choose to share a link with your values included.
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