# TAX calculator - iTaxCalc — Easy to calculate Taxes!

> A versatile calculator for determining tax amounts with adjustable rates. (iPhone/iPad app by Takao Ichimura.)

- Source: https://appshunter.io/ios/app/tax-calculator-itaxcalc/id1582632285 (this page in markdown: same URL + `.md`)
- Developer: [Takao Ichimura](https://appshunter.io/developer/1474061593)
- Category: Utilities, Productivity
- Price: Free
- Rating: 5.00/5 from 11 App Store ratings
- Age rating: 4+
- Requires: iOS 12.0 · 13 MB
- Languages: American English, Japanese
- Released: 2021-08-28
- Data updated: 2026-06-01
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/tax-calculator-itaxcalc/id1582632285/reviews.md

## What is TAX calculator?

"Tax Calculator - iTaxCalc” is a calculator that calculates Tax amount. It calculates Tax amount and others by using a calculated input price as a tax-included price or a Base price.

The result price columns (tax-incl., Base price, TAX) are divided into upper and lower with different tax rates, and the two tax rates are calculated together. Each tax rate can be changed by tapping the tax rate column.

After calculation, a frame will be added around the Input calc. column, and the Input calc. price will be entered in the result price column with a frame, and the tax amount and others will be calculated.

You can add a frame around the Base price column or the tax-incl. column by tapping it.

If there are frames around the both upper and lower base columns, Input calc. price will be in the both base columns, and the tax amount and others will be calculated. 

If there is a frame around the tax-incl. column, Input calc. price will be in the tax-incl. column, and the tax amount and others will be calculated. If the Input calc. price is not suitable to the tax-included price (e.g. Input calc. price is 2 and 7.25% tax-incl.), corrected Input calc. price will be in the tax-incl. column with red color. The upper and the lower are calculated using the same Base price.

Tax diff. is the value by subtracting the upper TAX amount from the lower TAX amount.

After calculation, if you tap the Base price column or the tax-incl. column without a frame, the frame will move to the column and other prices will be recalculated.

If you don’t need an input calculation, tap “=“ key after entering a price in Input calc. column.

Instead of tapping "=" key, you can tap a result column.

Tap “copy” key to copy Input calc. price into clipboard. 
Tap "Ⓒ" button to copy a price of each column into clipboard.

In the tax calculation of this calculator, the number of digits after the decimal point is 2 and the 3rd digit after the decimal point is rounded off.

Decimal points are displayed as periods (.), and thousands separators as commas (,).

The developer assumes no responsibility for any loss or claims by third parties which may arise from the use of this app.

   Tax Calculator - iTaxCalc
   Ⓒ 2021 Takao Ichimura

## Key features

- Calculate tax with tax-included or base price
- Support for two different tax rates
- Adjustable tax rates
- Copy results to clipboard
- Automatic recalculation based on input
- Decimal rounding and thousands separators


## Frequently asked questions about TAX calculator

### Does TAX calculator have ads?

Yes, TAX calculator contains advertisements. This is how the app is supported as it is offered for free.

### What is the latest version of TAX calculator?

The latest version of TAX calculator is 1.4.0, last updated on February 23, 2026.

### How does TAX calculator handle decimal points and thousands separators?

TAX calculator displays decimal points as periods (.) and uses commas (,) as thousands separators. The number of digits after the decimal point is set to 2, with rounding applied to the third digit.

### Can I calculate taxes with different rates using TAX calculator?

Yes, TAX calculator allows you to calculate taxes using two different tax rates simultaneously. You can change each tax rate by tapping on its respective column.

### How can I copy calculated tax amounts from TAX calculator?

You can copy the input calculation price to your clipboard by tapping the 'copy' key. Additionally, tapping the 'Ⓒ' button allows you to copy the price of each individual column into your clipboard.

### What devices is TAX calculator compatible with?

TAX calculator is compatible with iPhone, iPad, and iPod devices.

### What is the age rating for TAX calculator?

TAX calculator has an age rating of 4+, making it suitable for a wide range of users.

### How does TAX calculator recalculate prices?

After an initial calculation, tapping on a column without a frame will move the frame to that column and automatically recalculate all other prices accordingly.

## Version history (last 5 releases)

### 1.4.0 — 2026-02-23

Supports environments that use a comma (,) as the decimal separator. The app itself uses a period (.) as the decimal separator.
Made other improvements.

### 1.3.12 — 2025-10-16

Updated app information.

### 1.3.11 — 2025-01-27

Added Icons for Dark and Tinted modes.
Other improvements.

### 1.3.10 — 2024-06-30

Fixed a minor bug and improved performances.

### 1.3.9 — 2024-06-20

When used on Mac, the app window size is fixed to a compact size, making it easier to use.
Other improvements.

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## More apps by Takao Ichimura

- [Smart Calculator - SmartCalc](https://appshunter.io/ios/app/smart-calculator-smartcalc/id1474061594)
- [Japan Consumption Tax Calc](https://appshunter.io/ios/app/japan-consumption-tax-calc/id1475187358)
- [India Calculator - IndiaCalc](https://appshunter.io/ios/app/india-calculator-indiacalc/id1476661552)
- [Arabic Calculator - ArabiCalc](https://appshunter.io/ios/app/arabic-calculator-arabicalc/id1477192394)
- [Modulo Calculator](https://appshunter.io/ios/app/modulo-calculator/id1514351751)
- [Sheet Count Calculator](https://appshunter.io/ios/app/sheet-count-calculator/id1516419390)

All apps by Takao Ichimura: https://appshunter.io/developer/1474061593

## Related topics

[california tax](https://appshunter.io/ios/topics/california-tax)

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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 2026-06-01.*