You can use TurboTax Easy Extension to e-file an extension request. The request will give you until October 17, 2022 to file the 2021 tax return. However, if you have taxes owed those need to be paid on or before April 18, 2022 to avoid a failure to pay penalty. The extension does not extend the time to pay taxes owed.
Go to this TurboTax website to e-file an extension - https://turbotax.intuit.com/irs-tax-extensions/
