消費税電卓・割引計算

■ App Features

This sales tax calculator and discount calculator is a simple tax-inclusive calculation app developed for staff working in supermarkets and retail stores.

Simply enter the price, and the sales tax amount and tax-inclusive price will be displayed instantly. No need for tedious mental calculations.

■ Main Functions

【Sales Tax Calculation】
・Supports standard tax rate (10%) and reduced tax rate (8%)
・Two-way calculation: pre-tax to tax-inclusive, tax-inclusive to pre-tax
・Accurate calculation with rounding down of fractions

【Discount Calculation】
・Set discount rates from 5% to 50% with one tap
・Automatically calculates sales tax on the discounted amount
・Discount amount is also easily visible

【Calculation History】
・Automatically saves calculation results
・Review past calculations anytime

■ Recommended for:

・Supermarket and retail store staff

・Those who want to quickly check tax-inclusive prices at the register

・Those who want to calculate tax-inclusive prices during discount sales

・Those who have trouble calculating reduced tax rates

■ Free to Use

You can use it for free up to 10 times a day.

You can remove the usage limit with an in-app purchase (¥100, one-time purchase).

■ Privacy

We do not collect any personal information.

Calculation data is stored only on your device.