My base currency is ZWL$. I import goods from a neighbouring country. I have a freight company that handles the freight, customs clearing, etc. They bill me for their services, and the customs duty and VAT on the imported goods. Most of the time this is in ZWL$, but occasionally there are goods that are required by our tax authority to have their duty and VAT paid in USD. In this case the freight company sends me a USD invoice for the duty and VAT for those items.
In Manager I enter the invoice from the freight company as a purchase invoice. I use a 100% tax code for the VAT paid on the imported items. Manager converts this USD amount to a ZWL$ amount based on the exchange rate of the day, and this is deducted from my VAT payable account.
However, when I submit my VAT returns, I need to submit the bill of entry as supporting documentation. This has an earlier date than the invoice I received from the freight company, and so the amount of VAT paid when converted to ZWL$ is different because of the different exchange rates.
How can I account for this difference in Manager? At no point in my accounting process do I enter the bill of entry into Manager, and so it has no way to pick up the difference and assign it to foreign exchange gains / losses. For unrelated reasons (see this topic) I created my own custom foreign exchange losses account. Shall I just allocate this difference to that account too? Any suggestions appreciated.