On 10/12/2022 6:41 AM, Tim van Osch wrote:
Hey everyone,
I would like to render my invoice using the python bindings but I am having
two issues.
The main issue I am having is getting the tax values of an invoice per tax
table. Something like this:
*VAT 21% *€152.00
*VAT 6% *€23.00
I found the method: Invoice.GetTotalTaxList() which is expected to return
an AccountValueList. Unfortunately in the python bindings it returns a list
of _gnc_monetary, which I think is a wrong/incomplete typing.
Does anyone know how I can fetch the tax values per table for an invoice in
Python?
Just a reminder.
Those that want/ask for something like this are almost always in a
jurisdiction where it is a relatively simple problem. In other words,
they do not recognize they are a "special case" of a "figure the tax"
problem where the general case is FAR more complicated, Where it would
require a "system"/function to compute the applicable sales tax (VAT is
a form of "sales tax".
In the general case, the "compute the tax" process has to deal with
multiple tax tables (one for each jurisdiction claiming sales tax) and
that also needing to take into account what is or is not "taxable" in
that jurisdiction. Over here we have 50 states plus some local
jurisdiction also wanting sales tax and which applies is not necessarily
based on where the business is located. If the sale is remote, that will
depend on the customer location.
USUALLY these calculations are done by a POS system which feeds the
accounting package, not as part of the accounting package. Why "point of
sales" should be obvious when you recognize that sales AT a "brick and
mortar" store will depend on where (the "point of"). Thus a small
business with three buildings, one in Greenfield MA, one in Brattleboro
VT, and one in Keene NH (these would all fit in a 40 mile circle) could
be the same POS software with the program in one place "follow MA
rules", one "follow VT rules", one "follow NH rules" << the program is
told where its "point" is >> but if say one of those stores is also
handling remote sales that "point" changes with each sale << according
to where the customer/delivery is >>
NOTE: POS systems usually also feed the inventory system so the sale
results in reduction of physical inventory
Gnucash is JUST an accounting package, the "general ledger" part of a
complete business system, which might include POS, inventory, payroll,
billable hours, etc.
Michael D Novack
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