# Singaporean GST Calculator — Add, remove or calculate GST

> Add, remove or calculate GST (iPhone/iPad app by Almost Antarctic.)

- Source: https://appshunter.io/ios/app/singaporean-gst-calculator/id449740375 (this page in markdown: same URL + `.md`)
- Developer: [Almost Antarctic](https://appshunter.io/developer/411637964)
- Category: Finance, Business
- Price: $1.99
- Age rating: 4+
- Requires: iOS 15.0 · 1 MB
- Languages: American English, Japanese, Chinese (Simplified, China), European Spanish, Swedish
- Released: 2011-07-26
- Data updated: 2026-08-29
- User reviews in markdown: https://appshunter.io/ios/app/singaporean-gst-calculator/id449740375/reviews.md

## What is Singaporean GST Calculator?

Makes working with Singapore GST (goods and services tax) really easy - even reverse GST calculations.

Features
- Add GST, or reverse it from any amount.
- Automatic calculations as you type.
- Basic +/- calculations if you need the total GST across a few items.
- Simple and easy to use design with Dark Mode support since iOS13

Just start typing to add GST to any amount, or tap “Including GST” to do a reverse GST calculation.
Tap C or AC to clear, just like on your calculator.

Singaporean GST Calculator is useful for businesses, shoppers and travellers.

----------------------------------- 

Feedback is always welcome: desk@almostantarctic.com


## Version history (last 5 releases)

### 4.20 — 2026-03-29

Return to the app store

### 4.13 — 2024-01-29

Updating GST rate to 9% following change on 1 Jan 2024. Adding secondary 8% rate to allow for historical calculations on the old rate - this will be removed in 2025.

### 4.12 — 2023-01-29

Updating GST rate to 8% following change on 1 Jan 2023. Adding secondary 7% rate to allow for historical calculations on the old rate - this will be removed in 2024.

### 4.11 — 2022-11-27

Minor updates to keep app current.

### 4.1 — 2019-10-04

Dark mode support on iOS 13

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| --- | --- | --- | --- |
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| [Sales Tax Calculator +](https://appshunter.io/ios/app/sales-tax-calculator-plus/id6740737632) | 4.2 (5) | Free | Finance |
| [VAT Expert](https://appshunter.io/ios/app/vat-expert/id6636530108) | — | $0.99 | Finance |
| [Quick GST Calculator](https://appshunter.io/ios/app/quick-gst-calculator/id6743336253) | — | Free | Finance |
| [Australia GST - Tax Calculator](https://appshunter.io/ios/app/australia-gst-tax-calculator/id592595980) | — | $0.49 | Finance |
| [B4Tax Reverse Tax Witheld Calc](https://appshunter.io/ios/app/b4tax-reverse-tax-witheld-calc/id6462863046) | 5.0 (4) | Free | Finance |

## More apps by Almost Antarctic

- [NZ GST Calculator](https://appshunter.io/ios/app/nz-gst-calculator/id411637961)
- [UK VAT Calculator](https://appshunter.io/ios/app/uk-vat-calculator/id483740016)
- [Consumption Tax Calculator](https://appshunter.io/ios/app/consumption-tax-calculator/id490232843)
- [South African VAT Calculator](https://appshunter.io/ios/app/south-african-vat-calculator/id887298905)
- [Swedish MOMS Calculator](https://appshunter.io/ios/app/swedish-moms-calculator/id887334893)

All apps by Almost Antarctic: https://appshunter.io/developer/411637964

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-29.*