How To Set Tax Rate In Casio Calculator May 2026

If you own a Casio calculator—particularly a desktop printing calculator like the HR-100TM, DR-210TM, FR-2650RC, or a non-printing model like the MS-80F—you have likely noticed the TAX+, TAX-, and TAX SET keys. These buttons are incredibly useful for quickly adding or subtracting sales tax (VAT/GST) from a transaction.

However, many users never touch these features because they don't know how to set the tax rate originally. By default, most Casio calculators come with a tax rate of 0%. This article will walk you through the exact process, covering different Casio series, troubleshooting tips, and practical examples.

How to Calculate Taxes using the Set Tax Rate

Once you've set the tax rate on your Casio calculator, you can calculate taxes with ease. Here's an example:

Tips and Tricks

Common Issues and Troubleshooting

Conclusion

Setting the tax rate on your Casio calculator can save you time and reduce errors in tax calculations. By following the steps outlined in this article, you can accurately calculate taxes on various financial transactions. Whether you're an individual or a business owner, programming the tax rate into your Casio calculator is a valuable feature that can streamline your financial calculations.

Setting the tax rate on a Casio calculator takes less than 30 seconds once you know the correct sequence. Whether you are running a retail store, working as a bookkeeper, or simply want to speed up your daily calculations, mastering the TAX+ and TAX- buttons will save you time and prevent costly errors.

Now that you know how to set the tax rate, put your Casio calculator to full use – and never manually add sales tax again.

Need help with a specific Casio model not listed? Refer to your user manual’s “Tax Rate Setting” section, or leave a comment on Casio’s official support page with your exact model number.

To set the tax rate on a Casio calculator, you typically use a combination of the

. While the exact steps vary slightly by model—such as the MS-80TV desktop series or HR-8TE printing models—the fundamental logic of holding a "Set" key and entering a numeric value remains consistent. Core Steps for Standard Desktop Models how to set tax rate in casio calculator

For many common desktop and portable Casio models (e.g., MS, SL, or HL series), the process follows these steps: Clear the Memory : Press the

key to ensure no previous calculations interfere with the setting. Enter Setup Mode : Hold down the

key (often labeled with "SET" above it) for approximately two seconds until the display clears and "SET" or "0" reappears. Select the Function : Press the key to indicate you are programming a tax rate. Input the Rate

: Type the desired percentage (e.g., for an 8% tax rate, press Save the Setting : Press the

key again to lock the rate into the calculator’s permanent memory. Variation for Specific Models Print-Above Models

: If your calculator has "Rate set" printed directly above the key, you can often skip the [TAX+] step. Simply hold , input the rate, and press Printing Calculators (HR Series)

: These often require the device to be in "Print" mode before holding the key for three seconds to begin programming. Cash Registers

: Commercial Casio registers require turning a physical key to the

(Programming) position and using specific numeric codes like 3 [SUBTOTAL] followed by a tax table index (e.g., 0125 for Tax 1). Verifying and Using Your Rate CASIO【How to use calculator Tax calculations】

To set the tax rate on most Casio desk or shop calculators, follow these steps: Press [AC] to clear the screen. Hold [%] (SET) for about two seconds until "SET" appears. Press [TAX+]. The current rate (usually 0) will show. Enter your new tax rate (e.g., 7 for 7%). Press [%] (SET) again to save the rate. 💡 Quick Tips Check the rate: Press [TAX+] once to see your stored rate. Calculate Total: Enter a price and press [TAX+] to add tax.

Remove Tax: Enter a price and press [TAX-] to see the pre-tax amount.

To confirm these steps for your specific model,g., MS-80B or JF-120BM) The type of tax you're calculating (e.g., VAT or Sales Tax) If you own a Casio calculator—particularly a desktop

Setting the tax rate on a Casio calculator typically involves key to enter a programming mode

. While steps can vary slightly by model, the most common methods for desktop and handheld Casio calculators are outlined below.

Method 1: Most Common (Calculators with "Set" or "Rate Set" on the % Key) This method applies to many standard Casio models like the MS-80 series MS-20 series JustAnswer Clear the Calculator : Press the button to ensure the memory is clear. Enter Set Mode : Press and hold the button for about 2-3 seconds until the word appears on the display. Initiate Tax Setting "Rate set" is printed above the key, skip to the next step. is printed above the key, press the button once. Enter the Rate : Type in the desired tax percentage (e.g., enter Save the Rate : Press the button again to finalize and store the value. Method 2: Printing Calculators (HR-Series) For heavy-duty printing models like the

, the process sometimes requires specific power switch settings. CASIO【How to use calculator Tax calculations】

To set the tax rate on most Casio calculators, press [AC], hold [%] (SET) until "SET" appears, press [TAX+], enter your rate, and press [%] (SET) again.

The exact steps depend on whether your calculator has "SET" or "Rate set" printed above the percent key. Method 1: If "SET" is printed above the [%] key

This method is standard for models like the Casio MS-80B and MS-20NC. Press [AC]: Clears the current calculation memory.

Hold [%] (SET): Press and hold for about two seconds until "SET" appears on the display.

Press [TAX+]: This prepares the device to receive the new tax rate.

Enter the Tax Rate: Key in the number (e.g., enter 7 for 7%). Press [%] (SET): Press it once more to save the rate. Method 2: If "Rate set" is printed above the [%] key Used for many basic Casio desk calculators. Press [AC]: Clear the screen.

Hold [%] (Rate set): Hold for about two seconds until "SET" or "%" flashes. Enter the Tax Rate: Input your percentage. Press [%] (Rate set): Press once to store the value. Method 3: For Printing Calculators (e.g., HR-150TM, HR-8TM)

These models often require an extra step to ensure you are in the correct mode. Tips and Tricks

Switch to "Print" mode: Ensure the calculator is set to print or "Item". Press [CA] or [AC]: Reset the current state. Hold [%] (SET): Hold for 2-3 seconds.

Press [TAX+]: (On some models, you enter the number first, then press [TAX+]). Enter the Rate & Press [%] (SET): Finalize the save. How to Use and Verify CASIO【How to use calculator Tax calculations】

Setting the tax rate on your Casio calculator only takes a few seconds once you know which "language" your specific model speaks. Most Casio desktop and pocket calculators follow one of two simple procedures depending on what is printed above the percentage key Method 1: If "Rate Set" is above the [%] key This is common on many standard Clear everything : Press the Enter Setup : Press and hold the

key for about two seconds until "SET" (or "0") appears on the display Enter Rate : Type in your tax percentage (e.g., press Amazon.com : Press the [%] (Rate Set) key again to save it Method 2: If "Set" is above the [%] key

Some models require an extra step to tell the calculator you are specifically setting the Clear everything : Press the Enter Setup : Press and hold the key for about two seconds until "SET" appears Select Tax : Press the key. The screen should now show "TAX" and "%" Enter Rate : Type in your tax percentage (e.g., : Press the key to finalize How to use and verify your tax rate To Check the Rate , then press

. The calculator will display the currently stored percentage Calculate Price with Tax : Enter the base amount and press Calculate Price without Tax : Enter the total amount and press

: If you replace the batteries or your solar power gets too low, your calculator might "forget" its tax setting, so it's a good idea to verify the rate before doing important accounting example calculations

to make sure the rounding settings are also correct for your needs? General Calculator - Support - CASIO

Press [AC] and hold [%] for about two seconds. 2. Input Tax Rate and then [%]. How to calculate Price-plus-Tax and Price-less-Tax. General Calculator - Support - CASIO

Here’s a short report on how to set the tax rate on a standard Casio calculator (e.g., Casio HR-100, DR-210, or similar desktop printing calculators with TAX+ and TAX- functions).

Report Title: Procedure for Setting the Tax Rate on Casio Desktop Calculators

Objective: To provide a standard method for programming or changing the tax rate (VAT/sales tax) on Casio calculators equipped with tax calculation keys.

Applicable Models: Casio HR series, DR series, and similar calculators with TAX SET, TAX+, TAX- , and RATE keys.