I'm not sure what the going rate for a wedding planner is? I'm planning a destination wedding in Key West so I know we'll need a planner! Doesn't 20% of your wedding budget sound right? It's seems a bit high but if that's the going rate. The other option is the planner will email me a list of vender links and we contact them and secure everything and he takes over the last month before the wedding. If we choose that option his fee is a flat $1,000 and if we have him book anything then he gets 20% of what ever he secures.