Has the tax expert filed your return for you? Once your tax return is filed it will normally take the IRS 24-48 hours to accept it. However, due to the number of stockpiled returns, it may take a little bit longer. Per the IRS, most refunds are received within 21 days from the time a return has been accepted (received).
Please see the TurboTax FAQ When will I get my IRS refund? for more information.