Ask software provider or tax preparer Those who need a copy of their tax return should check with their software provider or tax preparer first. Prior-year tax returns are available from the IRS for a fee.
Get a transcript Taxpayers who can’t get a copy of a prior-year return may order a tax transcript from the IRS. To protect taxpayers’ identities, this document partially masks personally identifible information such as names, addresses and Social Security numbers. All financial entries, including the filer’s adjusted gross income, are fully visible. These are free and available for the most current tax year after the IRS has processed the return. People can also get them for the past three years.
Taxpayers ordering a transcript should allow time for delivery. Here are the three ways to get transcripts:
Get Transcript online. People can use this tool to view, print or download a copy of all transcript types. Those who use it must authenticate their identity using the Secure Access process. Taxpayers who are unable to register or prefer not to use Get Transcript Online may use Get Transcript by Mail to order a tax return or account transcript type. Taxpayers should allow five to 10 calendar days for delivery.
By phone. The number is 800-908-9946.
By mail. Taxpayers can complete and send either Form 4506-T or Form 4506T-EZ to the IRS to get one by mail. They use Form 4506-T to request other tax records: tax account transcript, record of account, wage and income and verification of non-filing. These forms are available on the Forms, Instructions and Publications page on IRS.gov.
Request a copy of a tax return from the IRS If necessary, taxpayers can request a copy of a tax return by completing and mailing Form 4506 to the IRS address listed on the form. There’s a $50 fee for each copy and these are available for the current tax year and up to six years prior.
Illinois
Taxpayers can get a copy of IL returns through MyTaxIL.
https://www2.illinois.gov/rev/questionsandanswers/Pages/50.aspx