Only the IRS can provide you a time-frame on when that will happen. Audit wrap-up time can vary depending on the type of audit it is and the complexity of the issue at hand since they have to check your financial information and make sure you reported the correct amount of tax.
Once the IRS completes the audit process, then they issue your refund. You can see more details on audits here
IRS Audits
And in the meantime, keep an eye out at
Where’s My Refund? for updates to your status there as well.
