Estimate fees for a transaction

A client will pay $750 from a different country; estimate the total fees so I can give a net amount. Produce a breakdown showing the platform fee, foreign transaction fee, currency conversion fee if any, and the net I will receive to my bank in my local currency within two business days.

Before I send the invoice, make the fee estimate easy to approve — show the absolute fees and percent rates up front, display the net amount I get in my bank currency, flag any thresholds where fees change, and call out anything that would make a finance reviewer hesitate to approve the invoice amount.

I created a fee estimate for a $300 international payment and the actual fees charged were higher. I don’t know whether an added conversion or intermediary bank fee applied. Diagnose the most likely unseen fee source and tell me the single piece of info to check on the transaction to reconcile the difference fast.

Over many small invoices, unexpected fees consistently reduce my take-home more than I budgeted. Where am I misestimating — ignoring conversion spreads, neglecting intermediary bank fees, or using the wrong fee table — and what one routine (a checklist or template) will make my fee estimates accurate every time?