To obtain a literal copy of your tax return, you must submit the Form 4506, Request for Copy of Tax Return. This form is distinct from those used to request transcripts.

MISMO said its new dataset provides a standard set of data points that map to Form 4506-C, which is used for requesting tax transcripts from the IRS. The new dataset, accompanied by a sample XML file ...

For the really old-school methods, you can call the IRS at 800-908-9946 and follow the prompts, or fill out IRS Form 4506-T or Form 4506T-EZ for an individual transcript and mail it to the address ...

You can also get copies of federal returns directly from the Internal Revenue Service. You’ll need to fill out and mail in IRS form 4506.