Since in our country, vendor used to quoate at price including tax. So usually it would be tax variance between PO and AP invoice.
For instance, if price for item A is 50(tax included, rate is 17%), quantity is 1000.
When user entry PO, have to convert the price to net price (that is 50/1.17=42.735), then user will entry price at 42.74, and the order total amount would be 42.74*1000*1.17 = 50,005.8
differ from contract = 5.8
And if invoice from vendor is still 50,000, then there would be different in incoming tax, and IR/GR.

Is it possible to record price inculding tax?

Thanks,

Anthony