[freeside] Canadian taxes...

[fox at vader.aacc.edu]

On Mon, 18 Aug 2003, Rob Charles wrote:

> I setup the Country as CA and the State as QC, then I setup tax 1 as PST
> and tax 2 as GST and assigned them the % 7 - GST and %7.5 PST. This is
> perfect.
> 
> On the customer it makes me assign for state QC either GST or PST but
> the client must be charged both.

Case 1: the 3 combos (GST + PST, GST only, PST only) are possible.

Define a 3rd tax, which would be GST+PST combined. Tax rate would be 1.07 
* 1.075 - 1 = 0.15025 = 15.025%.

Case 2: one of the taxes never applies alone (eg, you can get GST only, or 
both, but not PST only).

You could change the PST rate so that it would give the right result when 
applied to the price exclusive of GST (subtotal in your example below). 
Instead of 7.5%, you would need to use 1.07 * 0.075 = 0.08025 = 8.025%.

> The other issue is for the province of QC we must charge the taxes as
> per the example in the ticket, how do we specify that PST must be 
> 
>  Sub-Total * 7% = GST
>  (Subtotal + GST) * 7.5% = PST
>  Sub-Total + GST + PST = Total

You may need to be careful with both suggestions above in case you have 
invoice layout constraints, or if you need to pay the GST and PST you 
collect to different tax authorities.

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