"(Retirement) almost depends on how long I'm here. I don't think there's many places I'd want to play, if any, after this anyway. I probably would say yes - that would be it if I left in the summer," Carrick told British media.
The 35-year-old Carrick, who was awarded a June 4 testimonial by United on Thursday, has spent 11 years at the club, winning 16 major trophies, including five league titles.
"I haven't really had that much of a conversation with him (Mourinho) at the moment. Obviously that will happen pretty soon. That's something I'm really relaxed about. I'm sure he is as well," Carrick added.
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"I've had such a time here, that I don't think (I would go elsewhere). I feel really good, to be honest. You've just got to judge how you go. It can change quite quickly. I feel fine."
United, currently sixth in the league, host 14th-placed Bournemouth on Saturday.
(Reporting by Shravanth Vijayakumar in Bengaluru; Editing by Amlan Chakraborty)
