Normally, yes, you would have to pay. If you are in the US, or a citizen of the US, then IRC Sec. 61 would levy tax on all income. Even if you find money on the ground, that will generally be taxable income (the treasure trove doctrine). If you are paying foreign income taxes, the US may allow credit.

Do I need to pay income taxes for the money I earn online from a foreign website?
I have site column with the following formula:

[AmountLeftToPay]/([AmountAssigned]-[AmountReleased])

The problem is the division by zero, sometimes it shows on list items #DIV/0!

So I wanted to do the following:
=IF([AmountAssigned]-[AmountReleased]=0; 0; [AmountLeftToPay]/([AmountAssigned]-[AmountReleased]))

And it shows me the same error in all lists where its used.
is not supported.
/apps/xx/xx/Lists/Budgets : The formula contains a syntax error or is not 
supported.

If I change ; with commas,
The formula contains a syntax error or is not supported.

so I got no clue
