Hi bigj67,

bigj67 said:

For some reason on one particular client the HST is not calculating when I enter the freight amount - I put the tax code in but still nothing calculates.  I have to manually change the HST.  I don't have to do this with other clients in the same version of SA.  Would anyone know why this is happening. 

 Is this a purchase invoice or sales invoice you are putting the tax code into.  If this is a purchase invoice, double check that the tax code you have setup has HST set as refundable.  Go into [Setup] in your menu bar then [Settings].  A new window will appear, in that new window click on [Company] then [Sales taxes] then [Tax codes].  Double click on the tax code you are using to open the 'Tax code detail' window, and in that window check if HST is set to 'Refundable - yes'.

bigj67 said:

Also with this particular client I cannot change the HST right on the invoice screen - I have to click on the little icon beside the HST box and then change it in the pop up box.  Other clients I can just manually change it on the invoice screen. 

 If on the purchase invoice you have on aggregate 'Taxes' column rather than an HST tax column, this means you have more than three taxes setup in the 'Taxes' window.  Remove any unused taxes from Setup > Settings > Company > Sales taxes > taxes.

Hope this helps!