Travel expenses

I think you need to view this from a commercial point of view. You have to decide for yourself whether to charge travel expenses: is there a risk that customers will drop out or not?

And from an accounting point of view, I think it's part of what you charge the customer: there's the work the customer asks for + travel expenses, if applicable. If you work with invoices, you can add this as an extra invoice line or simply charge a little more for your work. If you work with daily receipts, it is simply part of that day's income.

On the other hand, suppose you do not charge the customer for travel expenses. In that case, you can still enter the actual travel expenses you incurred as costs in your accounts, of course. See: https://dexxter.be/sole-proprietor-zakenreis-reiskosten-aftrekbaar/

Thank you so much for this clear response ;) I can now get on with it.