[O] date next year

[Rene]

How can I set org-agenda-custom-commands so that I can get the tasks past a
date in the coming year?

Suppose I'm interested in things past next september.  This

        ("y"
         "Next year's appointments"
         tags "TIMESTAMP>=\"<2014-09-01>\"")

works alright as long as we are before that date but won't work anymore next
october.  I would have to modify my org config file each year.

Is there a generic way to indicate "next year"?

Thanks.