I’m speaking of your actual tax return – the 1040 Form with all schedules and attachments. Make sure you get an electronic copy or a paper copy of your tax return if you’ve filed electronically. Starting with 2017 tax returns, the IRS may ask you for the amount of your Adjusted Gross Income (AGI) from the last return you filed in order to verify your identity.
The Adjusted Gross Income (AGI) is the amount at the bottom of the first page of your tax return. So, if you file your own tax return, print a copy or save it to your computer before you log out. If you use a tax preparation service, make sure you get a printed or emailed copy from them when the tax return is filed. Trying to track down the person that prepared your taxes six months or more later to get a copy can be a frustrating process.
There are also many other reasons to always maintain a copy of your tax returns. For example, you may be asked to provide a copy of your tax return for your child when they apply for college and/or financial aid. If you are considering filing bankruptcy, you will need to provide a copy of your last two years of tax returns to the Trustee. Whenever you wish to buy a home, you will be asked to provide copies of tax returns by whomever you are applying with for a mortgage loan.