This depends on the policies and payment options you can offer.
If you don’t accept credit cards, the guest will pay on arrival or departure in your local currency.
If you do accept credit cards, you can either charge the guest before arrival or at check-in/check-out, depending on the policy they booked under.
Make sure the amount is the same as the amount stated in the booking conditions.
Make sure your payment policies are up to date. You can check these in the Policies section of the Property tab on the Extranet.
Tip: You can also add this info to The fine print section of your page by clicking on the Property tab, then selecting View your description.