QPRT or qualified personal residence trust is a trust designed to save the setae a substantial tax by transferring the owner of the trust's residence or other home into the trust. The owner of the trust is allowed to live there for a designated number of years, indicated in the trust. These trusts are irrevocable and are considered a completed gift of the estate. During the time specified in the trust the grantor does not have to pay rent to the trust but must maintain the house and can claim the associated tax deductions. Once the predetermined number of years have passed, the grantor may negotiate a fair market rent with the trustee.