To set up GST for Canada, first delete any existing sales tax setup records.  

 

then on >Maintenance >Sales Tax Setup, Set Sales Tax Type to Multiple...

 

 

Add two Tax Rates for Ontario:

 

 

 

 

Set up a Tax Class for General Merchandise:

 

 

Set up a Tax Locale for Ontario customers and Non-Ontario Customers:

 

 

 

 

 

 

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In Customer Maintenance associate the customers with a Tax Locale:

 

 

In Inventory Maintenance associate the items with their correct Tax Class:

 

 

In POS Terminal Setup Customers tab, set Walk-in Tax Location so it matches the store's location.

 

Now Ticket Entry can match up the item, customer and Tax Locale and use the correct Tax Percentage. Note you must mark the transaction as delivery and choose an address associated with different locale, otherwise the stores locale will be used.