How do i set the tax rate for Casio QT-6600?

Press AC twice. Hold down % set key for about 2 seconds until ?0? disappears on screen, then reappears. Press Tax Rate key. Input tax rate (12.5%) and press % set key.

press AC
press RATE SET, hold for approx5 secs till you see "tax" "%" displayed
type in new rate (say 20)
press RATE SET (to confirm 20% as new tax rate)

Done

How do I program tax rate into my calculator?
Non-printing models (also applies to HR-8TE printing calculator):

1. Press [AC]
2. Hold [SET/%] key for about 2 seconds
3. Press [TAX+]
4. Input the tax rate
5. Press [SET/%]

Press the CA button twice. Then push and hold down the %/set key until the 0 dissappearsd and reappears. Then type in your tax rate and the percent key (eg: 8.25%) and then press the TAX+ key. It should save the new tax rate.

So just 5 easy steps to change the rate

1 press the AC button
2 hold down the SET /SET % / button for a few seconds
3 press the TAX + button
4 input the rate /in your case 6/
5 press SET button again
And you are done. You can also check it - press the Tax + button and the current tax rate will appear

Hope I helped !

Found this on the casio site worked fine on my ms-120TE
1. Press [AC]
2. Hold [SET/%] key for about 2 seconds until set and a 0 is displayed
3. Press [TAX+]
4. Input the tax rate
5. Press [SET/%]

this is the link:- http://www.casio.com/support/content/AF64A1AC-193D-4650-A9A9-98BB6FE26CFE

I found this on the Casio site. I think yours is a printing model. If it is use the 2nd set of instrucitons. Hope it works...

Programming Tax Rate
Non-printing models (also applies to HR-8TE printing calculator):
1. Press [AC]
2. Hold [SET/%] key for about 2 seconds
3. Press [TAX+]
4. Input the tax rate
5. Press [SET/%]

Printing models (except HR-8TE):
1. Have calculator in “print” mode
2. Press [CA]
3. Hold [SET/%] key for about 3 seconds
4. Input the tax rate
5. Press [TAX+]
6. Press [SET/%]

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

Printing models (except HR-8TE): 1. Have calculator in ?print? mode 2. Press [CA] 3. Hold [SET/%] key for about 3 seconds 4. Input the tax rate 5. Press [TAX+] 6. Press [SET/%]

step 1 pess the AC button step 2 press and hold for two seconds the % button step 3 press the tax+ button step 4 input 17­.5 step 5 press the % button that should be the tax set you can check it is set correctly by pressing the AC button and then the tax+ and 17.5 should be displayed