No, there is no limit. The entire balance of a trust account is available to pay for a supplemental service or item, but the request must be properly submitted and approved by ACT.  If a disbursement request is received that will fully deplete the Trust, ACT may require that a reserve be held in the account for payment of any final fees, including tax preparation fees, and any taxes that may be due in the current calendar year and/or the calendar year following the depletion of the trust.