How To Set Tax Rate On Casio Calculator Ms-8b Jun 2026

The Casio MS-8B is a robust desktop calculator, but its tax memory function is often overlooked. Unlike modern calculators with a dedicated "TAX" key, the MS-8B uses a hidden mode. Mastering this allows you to instantly add or subtract sales tax/VAT to any calculation.

: Type in the tax rate you want to use (e.g., press 5 for a 5% tax rate).

The Casio MS-8B automatically remembers the last tax amount you calculated. If you press or TAX– repeatedly, it will cycle through: how to set tax rate on casio calculator ms-8b

What many users don’t realize is that the Casio MS-8B has a built-in "Cost-Sell-Margin" and tax calculation feature that can automate this entire process. If you’ve ever found yourself typing 50 x 1.08 and wishing there was a dedicated button for it, you are in the right place.

Note: If you release the key too early, the calculator will think you just want to add tax to zero. If this happens, press AC and start again. The Casio MS-8B is a robust desktop calculator,

If you aren't sure what rate is currently programmed, you can check it without changing it: Press to clear the screen.

By following this guide, you have moved from using the MS-8B as a simple adding machine to a specialized financial tool. Keep this article bookmarked—once you set the rate every few months (when tax laws change), the process will become second nature. : Type in the tax rate you want to use (e

In this comprehensive guide, we will walk through exactly , how to verify your settings, and how to use that setting to calculate prices instantly.

Look at the top row of your Casio MS-8B keyboard. You will see three crucial keys:

In this long-form guide, we will walk through exactly , troubleshoot common errors, and show you how to use the feature for daily operations.

: Press the [%] (SET) key one final time to save the setting. How to Verify the Current Tax Rate