The amount gets deducted when you accept a bid. You will be redirected to a checkout page from where the payment will be done to the TradiePro trust account. It will be later released to the worker after job completion.
Can I get help on how to choose a fee in order to put a bid?
TradiePro allows its users to get help in order to make a profitable offer for a certain. Kindly read- How should I decide what price