According to the traditional rules of good etiquette, the couple, once they are engaged, should send invitations to all of their guests at least 18 months before the Wedding Day. If you want your guests to also attend the Wedding Banquet, you should also include an invitation to the Reception, or a note to this effect. The only duty of the guest is to respond to the invitation on time.
Thankfully, things have changed a little!
We would recommend that you do this at least two months before so that you and your Wedding Planner can finalize all the details at least one month ahead of your Wedding Day.
If you would like us to prepare your wedding invitations, please contact us for ideas and samples.