How do I set the tax rate in my Casio DJ-120T-w calculator

To set a Tax Percent rate, first, turn the calculator OFF and then turn it ON.

Press and hold the [%]key.

Follow the instructions in the fourth column of the instruction sheet. If you need a copy, you may download it at http://support.casio.com/storage/en/manual/pdf/EN/004/DJ-120D_Plus_etc_WB_EN.pdf

Sorry, I could not get a link to the manual for your calculator, but the Casio support FAQ page gives answers to some of your questions.

Hold the rate set[%] key for 2-3 seconds.
Press the tax key.
Input the tax rate.
Press the rate set[%] key.

1. Press the "AC" button.

2. Punch in the tax rate you want. (ex: For 17.5% vat type 17.5)

3. Press the "RATE" button. (RATE flashes in the display.)

4. Press "TAX+"

That's it.

FINALLY figured out how to change the tax rate! Press AC. Press and hold the Rate Set (%) button UNTIL THE CURRENT TAX RATE IS DISPLAYED. Enter the new rate you want (such as 7.5). Press the Rate Set (%) button again.

This works on several different casio calculators
Press AC butoon
Press AND HOLD % /Rate Set button for 2 to 3 seconds - This is important
Press Tax+ button
Input the tax rate you want eg: 12½% = 12.5
Press the % /Rate set button again

Voila

SETTING YOUR TAX RATE
you hold your set % button down for three seconds until set shows again, then hit tax rate button it shows your tax rate, change your tax rate then hit set your tax rate should be set.



cliff notes:
hold set% button
hit tax+ button
change the desired % 
hit set done


Do rate the solution.

I found it by myself, I can help you.
1. Press (AC)
2. Hold (Rate) for about 2-3 second
3. Press (Set / TAX+)
4. Input the tax rate
5. Press (Set / TAX+)
6. Hold (Rate) for about 2-3 second again
7. Press (Set / TAX+) again
And Then you can test the rate .

From Thailand

1. Switch off the calculator
2. Switch it on again
3. Press and hold the tax button (set %) until the display changes
4. Enter the new tax rate
5. Press the tax button (tax +)

Any problems contact [email protected] - he emailed the solution to me and it has worked.

Pam