Unless you had income from working or from unemployment, then you probably do not need to file a return. Filing just to report interest income would not be required unless the interest exceeded the filing requirement based on your filing status.
You also do not need to file a return just so the IRS has it in their records. If you are not required to file, that's OK. The IRS will also not have any income reported under your Social Security number in their records, so they would not be contacting you to ask why you did not file a return.
For more information about whether you may need to file a return, take a look at the following TurboTax help article:
Do I need to file a federal return this year?
@HonorableHooligan
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