Q: Can I change payment settings after I’ve opened registration?
A: Yes!
You can change the payment settings (on the Basic Settings page) at any time. For example, to encourage people to sign up early for an event, you can set payment to be deferred up until 2 weeks prior to the event (or any date of your choosing). After that point, you can make payment required for anyone that registers within that 2-week window before the event.