Use Form 4506-T to request tax return information. Taxpayers using a tax year beginning in one calendar year and ending in the following year (fiscal tax year) must file Form 4506-T to request a return transcript. Current Revision Form 4506-T PDF Recent Developments There is a new transcript format that better protects taxpayer data. This new format partially masks personally identifiable information. Financial data will remain fully visible to allow for tax preparation, tax representation or income verification. Because the full SSN is masked, the IRS has created an entry for a Customer File Number. A 10-digit Customer File Number is selected by the requester and entered on a new Line 5b of Form 4506-T and 4506T-EZ. Learn more at About the New Tax Transcript and Customer File Number. Other Items You May Find Useful All Form 4506-T Revisions Get Transcript Other Current Products Related Items About Form 2848, Power of Attorney and Declaration of Representative About Form 4506, Request for Copy of Tax Return About Form 4506-A, Request for Public Inspection or Copy of Exempt or Political Organization IRS Form About Form 4506-T-EZ, Short Form Request for Individual Tax Return Transcript