HST remittance formula

[Mike or Penny Novack]

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>Actually, there is only one layer of tax for accounting purposes. No ‘tax on tax’ situation’. As Derek Atkins pointed out in another post, it would be quite doable if something like balance-as-of-date() were accessible from scheme. 
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The point the developers are trying to make is that they cannot possibly 
provide built in capability for the peculiarities of the taxing system 
of every jurisdiction on the planet. And just because Ontario doesn't 
involve a "tax on tax" situation you shouldn't assume that is true in 
other jurisdictions. I assure you, in at least some of the states in the 
US, if an item is bought that is subject to Federal excise taxes (tires, 
for example) then it is on the amount "tires + federal excise tax" that 
the state sales tax is computed.

That you see some commercial accounting packages offering facilities 
like this might blind you to the reality that they are SELECTIVELY 
offered according to market. In other words, a Canadian company might 
offer the facility to handle the Ontario and Quebec rules but not the 
rules for NB, NS, PEI, etc. just like a US vendor of such software might 
offer facility to handle NY and CA rules and perhaps those of a few of 
the other large states (but no Canadian province).

The point is that a free software project like this can't play favorites 
like that. Can't base a decision on "we have enough paying customers to 
justify coding the THEIR particular situation and our other customers 
form small jurisdiction get screwed because won't pay us to do theirs".

Michael