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.
Common Issues and Troubleshooting
Setting the tax rate on your calculator saves you from doing mental math or complex formulas repeatedly. Once set, you can: how to set tax rate in casio calculator
Model variation: Some Casio models require pressing and holding the SET (%) key or using a small button (e.g., TAX SET) recessed on the keyboard. Check the user manual for exact key labels. How to Set the Tax Rate on a
Most Casio calculator models support tax rate setting, including: Setting the tax rate on your calculator saves