Setting the tax rate on your Casio calculator is a one-time task that saves you from doing manual math every time you need to calculate a grand total or strip tax away from a price. Whether you are using a standard desk model (like the MS-80B) or a heavy-duty printing calculator, the process is nearly identical across most Casio "Tax & Exchange" series.
Once upon a time, in a small home office buried under a mountain of receipts, lived a freelancer named Leo. Leo was a wizard with words but a novice with numbers. Every time he had to add tax to an invoice, he’d find himself frantically multiplying and adding, usually getting a different result each time. One Tuesday, he stared at his trusty Casio calculator and noticed two mysterious buttons: how to set tax rate in casio calculator
Before I tell you the story, there is one very important detail you must know: Setting the tax rate on your Casio calculator
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 Leo was a wizard with words but a novice with numbers
: Enter the amount and press [TAX+] .
| Step | Action | Key(s) to Press | Display / Result | |------|--------|----------------|------------------| | 1 | Turn on the calculator or clear any existing entries. | AC or CA | Display shows 0 . | | 2 | Enter the desired tax rate (e.g., 10%). | 1 0 | Display shows 10 . | | 3 | Press the key sequence. | RATE (or TAX SET ) then TAX+ | Confirm – some models beep or show TAX % . | | 4 | Verify the new rate. | Press RATE then TAX- | Display shows the newly stored rate. | | 5 | Exit setup mode. | AC or CA | Returns to calculation mode. |