The couple has reportedly planned an intimate ceremony at an undisclosed California location.
Ellen and Portia, who have dated since December 2004, announced their engagement in May shortly after the California Supreme Court ruled that same-sex couples have the right to marry.
Ellen told Access Hollywood in June that the wedding was getting “bigger by the day.”
”Lots of people [have been invited],” she laughed.
“It’s getting bigger and bigger by the day. Would you like to come?” she said in jest.
“I heard he invited himself so I guess we’ll invite him,” Ellen joked to Access before confirming his invitation.
But the couple’s famous friends won’t need to come bearing gifts.