First, you need a key that will go to the 'SET' position. Second, you can only change the tax rate immediately after you've done a 'Financial Daily Reset' (otherwise known as a daily Z report). Finally, this is the procedure to set a percentage tax rate. The procedure to program a tax table is WAY too complicated to address here. If that's what you need, you'll have to find a dealer to help you. Here's the procedure:
1) Turn the key to the SET position.
2) Enter a 0 (zero) and press the Tax Modifier key corresponding to the tax rate you want to set. i.e. press TX1/M to set tax rate 1, TX2/M for tax rate 2, etc.
3) Press the ST key.
4) Enter the tax rate you want. Now, here's where the manual has conflicting info (typical TEC ...). The instructions say to enter the tax rate with a decimal point, if necessary. i.e. for 5% enter 5, for 10.5% enter 10.5, etc. However, in the example, it shows entering the tax rate with four decimal places implied. i.e. for 5% enter 50000, for 10.5% enter 105000, etc. You may have to try one method and then try a test sale. If you get an error or incorrect tax amounts, try the other method.
5) Press the AT/TL key.
Hope this helps ...
Steve, June 2010