| Problem | Likely Cause | Solution | |---------|--------------|----------| | TAX+/TAX– not working | Tax rate = 0% | Set a valid rate > 0 | | Rate not saving | Did not press TAX+ after entering number | Repeat procedure and press TAX+ before exiting | | Shows "E" or error | Wrong key sequence | Turn off calculator, restart procedure from AC | | Model doesn't have TAX keys | Wrong calculator type | Use manual percentage calculation: Price × (1 + rate/100) |
To confirm these steps for your ,g., MS-80B or JF-120BM) The type of tax you're calculating (e.g., VAT or Sales Tax) how to set tax rate in casio calculator
If your calculator has a button labeled or TAX- , you are in luck. If it does not have these buttons, it cannot be programmed. | Problem | Likely Cause | Solution |
: Input your tax rate as a whole number (e.g., enter "5" for 5%). This procedure applies to most Casio calculators with
This procedure applies to most Casio calculators with , and % keys, including but not limited to: